show loading state when amending top commit

This keybinding has been more pain than it's worth. Having a tab keybinding
to cycle tabs implies that you can shift+tab and when you shift+tab the
application exits because termbox, our dependency, doesn't know how to
interpret the escape sequence (so it takes it for an actual ESC key which
will exit lazygit at the top level).

If people get mad at me they can set nextBlock-alt to <tab> and they'll have
the functionality back :)

.github/FUNDING.yml

@@ -0,0 +1,4 @@
+# These are supported funding model platforms
+
+github: [jesseduffield]
+custom: ['https://donorbox.org/lazygit']

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,32 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: bug
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. Windows]
+ - Lazygit Version [e.g. v0.1.45]
+ - The last commit id if you built project from sources (run : ```git-rev parse HEAD```)
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/discussion.md

@@ -0,0 +1,14 @@
+---
+name: Discussion
+about: Begin a discussion
+title: ''
+labels: discussion
+assignees: ''
+
+---
+
+**Topic**
+A clear and concise description of what you want to discuss
+
+**Your thoughts**
+What you have to say about the topic

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.github/workflows/automerge.yml

@@ -0,0 +1,28 @@
+name: automerge
+on:
+  pull_request:
+    types:
+      - labeled
+      - unlabeled
+      - synchronize
+      - opened
+      - edited
+      - ready_for_review
+      - reopened
+      - unlocked
+  pull_request_review:
+    types:
+      - submitted
+  check_suite:
+    types:
+      - completed
+  status: {}
+jobs:
+  automerge:
+    runs-on: ubuntu-latest
+    steps:
+      - name: automerge
+        uses: "pascalgn/automerge-action@135f0bdb927d9807b5446f7ca9ecc2c51de03c4a"
+        env:
+          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
+          MERGE_METHOD: rebase

.github/workflows/cd.yml

@@ -0,0 +1,28 @@
+name: Continuous Delivery
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+jobs:
+  cd:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Unshallow repo
+        run: git fetch --prune --unshallow
+      - name: Setup Go
+        uses: actions/setup-go@v1
+        with:
+          go-version: 1.14.x
+      - name: Run goreleaser
+        uses: goreleaser/goreleaser-action@v1
+        env:
+          GITHUB_TOKEN: ${{secrets.GITHUB_API_TOKEN}}
+      - name: Bump Homebrew
+        uses: dawidd6/action-homebrew-bump-formula@v3
+        with:
+          token: ${{secrets.GITHUB_API_TOKEN}}
+          formula: lazygit

.github/workflows/ci.yml

@@ -0,0 +1,40 @@
+name: Continuous Integration
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  ci:
+    runs-on: ubuntu-latest
+    env:
+      GOFLAGS: -mod=vendor
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Setup Go
+        uses: actions/setup-go@v1
+        with:
+          go-version: 1.14.x
+      - name: Cache build
+        uses: actions/cache@v1
+        with:
+          path: ~/.cache/go-build
+          key: ${{runner.os}}-go-${{hashFiles('**/go.sum')}}
+          restore-keys: |
+            ${{runner.os}}-go-
+      - name: Format code
+        run: |
+          if [ $(find . ! -path "./vendor/*" -name "*.go" -exec gofmt -s -d {} \;|wc -l) -gt 0 ]; then
+           find . ! -path "./vendor/*" -name "*.go" -exec gofmt -s -d {} \;
+           exit 1
+          fi
+      - name: Test code
+        run: |
+          ./test.sh
+      - name: Build binaries
+        uses: goreleaser/goreleaser-action@v1
+        with:
+          args: --skip-publish --snapshot

.gitignore

@@ -1,6 +1,28 @@
-development.log
-commands.log
-extra/lgit.rb
-notes/go.notes
-TODO.notes
-TODO.md
+# Please do not add personal files
+
+# Logs
+*.log
+
+# Hidden
+.*
+
+# TODO
+TODO.*
+
+# Notes
+*.notes
+
+# Tests
+test/repos/repo
+coverage.txt
+
+# Binaries
+lazygit
+
+# Exceptions
+!.gitignore
+!.goreleaser.yml
+!.circleci/
+!.github/
+
+test/git_server/data

.goreleaser.yml

@@ -0,0 +1,63 @@
+# This is an example goreleaser.yaml file with some sane defaults.
+# Make sure to check the documentation at http://goreleaser.com
+builds:
+  - env:
+      - CGO_ENABLED=0
+    goos:
+      - freebsd
+      - windows
+      - darwin
+      - linux
+    goarch:
+      - amd64
+      - arm
+      - arm64
+      - 386
+    # Default is `-s -w -X main.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.Date}}`.
+    ldflags:
+      - -s -w -X main.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.Date}} -X main.buildSource=binaryRelease
+
+archives:
+  - replacements:
+      darwin: Darwin
+      linux: Linux
+      windows: Windows
+      386: 32-bit
+      amd64: x86_64
+    format_overrides:
+      - goos: windows
+        format: zip
+checksum:
+  name_template: 'checksums.txt'
+snapshot:
+  name_template: '{{ .Tag }}-next'
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - '^docs:'
+      - '^test:'
+      - '^bump'
+brews:
+  -
+    # Repository to push the tap to.
+    tap:
+      owner: jesseduffield
+      name: homebrew-lazygit
+
+    # Your app's homepage.
+    # Default is empty.
+    homepage: 'https://github.com/jesseduffield/lazygit/'
+
+    # Your app's description.
+    # Default is empty.
+    description: 'A simple terminal UI for git commands, written in Go'
+
+    # # Packages your package depends on.
+    # dependencies:
+    #   - git
+    #   - zsh
+    # # Packages that conflict with your package.
+    # conflicts:
+    #   - svn
+    #   - bash

.travis.yml

@@ -1,51 +0,0 @@
-language: go
-sudo: false
-env:
-  - DEP_VERSION="0.5.0"
-matrix:
-  include:
-  - go: 1.x
-    env: LATEST=true
-  - go: 1.7
-  - go: tip
-  allow_failures:
-  - go: tip
-before_install:
-  # Download the binary to bin folder in $GOPATH
-  # - curl -L -s https://github.com/golang/dep/releases/download/v${DEP_VERSION}/dep-linux-386 -o $GOPATH/bin/dep
-  - curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
-  - ls
-  - ls */*
-  # Make the binary executable
-  - chmod +x $GOPATH/bin/dep
-  - ls $GOPATH/bin/
-  - dep ensure
-  - go get github.com/mitchellh/gox
-install:
-  -
-script:
-# - go get -v ./...
-# - diff -u <(echo -n) <(gofmt -d .) # can't make gofmt ignore vendor directory
-# - go vet $(go list ./... | grep -v /vendor/)
-  - gox -os="linux darwin windows" -arch="amd64" -ldflags "-X main.Rev=`git rev-parse --short HEAD`" -verbose ./...
-  - mv lazygit_windows_amd64.exe lazygit_windows_amd64_${TRAVIS_TAG}.exe
-  - mv lazygit_darwin_amd64 lazygit_darwin_amd64_${TRAVIS_TAG}
-  - mv lazygit_linux_amd64 lazygit_linux_amd64_${TRAVIS_TAG}
-  - chmod a+x ./lazygit_windows_amd64_${TRAVIS_TAG}.exe
-  - chmod a+x ./lazygit_darwin_amd64_${TRAVIS_TAG}
-  - chmod a+x ./lazygit_linux_amd64_${TRAVIS_TAG}
-  - ls
-  - ls */*
-deploy:
-  provider: releases
-  skip_cleanup: true
-  api_key:
-    secure: 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
-  file:
-  - lazygit_windows_amd64_${TRAVIS_TAG}.exe
-  - lazygit_darwin_amd64_${TRAVIS_TAG}
-  - lazygit_linux_amd64_${TRAVIS_TAG}
-  on:
-    repo: jesseduffield/lazygit
-    tags: true
-    condition: $LATEST = true

CONTRIBUTING.md

@@ -15,9 +15,10 @@ welcome your pull requests:
 1. Fork the repo and create your branch from `master`.
 2. If you've added code that should be tested, add tests.
 3. If you've added code that need documentation, update the documentation.
-4. Be sure to test your modifications.
-5. Write a [good commit message](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html).
-6. Issue that pull request!
+4. Make sure your code follows the [effective go](https://golang.org/doc/effective_go.html) guidelines as much as possible.
+5. Be sure to test your modifications.
+6. Write a [good commit message](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html).
+7. Issue that pull request!
 
 ## Code of conduct
 Please note by participating in this project, you agree to abide by the [code of conduct].

Dockerfile

@@ -0,0 +1,17 @@
+# run with:
+# docker build -t lazygit .
+# docker run -it lazygit:latest /bin/sh
+
+FROM golang:1.14-alpine3.11
+WORKDIR /go/src/github.com/jesseduffield/lazygit/
+COPY ./ .
+RUN CGO_ENABLED=0 GOOS=linux go build
+
+FROM alpine:3.11
+RUN apk add -U git xdg-utils
+WORKDIR /go/src/github.com/jesseduffield/lazygit/
+COPY --from=0 /go/src/github.com/jesseduffield/lazygit /go/src/github.com/jesseduffield/lazygit
+COPY --from=0 /go/src/github.com/jesseduffield/lazygit/lazygit /bin/
+RUN echo "alias gg=lazygit" >> ~/.profile
+
+ENTRYPOINT [ "lazygit" ]

Gopkg.lock

@@ -1,77 +0,0 @@
-# This file is autogenerated, do not edit; changes may be undone by the next 'dep ensure'.
-
-
-[[projects]]
-  digest = "1:865079840386857c809b72ce300be7580cb50d3d3129ce11bf9aa6ca2bc1934a"
-  name = "github.com/fatih/color"
-  packages = ["."]
-  pruneopts = "UT"
-  revision = "5b77d2a35fb0ede96d138fc9a99f5c9b6aef11b4"
-  version = "v1.7.0"
-
-[[projects]]
-  branch = "master"
-  digest = "1:4a8ed9b8cf22bd03bee5d74179fa06a282e4a73b6de949f7a865ff56cd2537e0"
-  name = "github.com/golang-collections/collections"
-  packages = ["stack"]
-  pruneopts = "UT"
-  revision = "604e922904d35e97f98a774db7881f049cd8d970"
-
-[[projects]]
-  branch = "master"
-  digest = "1:f086cf183e423bf1926f4de05f47bf57132fe5db9c99e464f733ce925280fc81"
-  name = "github.com/jesseduffield/gocui"
-  packages = ["."]
-  pruneopts = "UT"
-  revision = "3c923f53ac9952af649af04a067405843558d56f"
-
-[[projects]]
-  digest = "1:c658e84ad3916da105a761660dcaeb01e63416c8ec7bc62256a9b411a05fcd67"
-  name = "github.com/mattn/go-colorable"
-  packages = ["."]
-  pruneopts = "UT"
-  revision = "167de6bfdfba052fa6b2d3664c8f5272e23c9072"
-  version = "v0.0.9"
-
-[[projects]]
-  digest = "1:d4d17353dbd05cb52a2a52b7fe1771883b682806f68db442b436294926bbfafb"
-  name = "github.com/mattn/go-isatty"
-  packages = ["."]
-  pruneopts = "UT"
-  revision = "0360b2af4f38e8d38c7fce2a9f4e702702d73a39"
-  version = "v0.0.3"
-
-[[projects]]
-  digest = "1:e2d1d410fb367567c2b53ed9e2d719d3c1f0891397bb2fa49afd747cfbf1e8e4"
-  name = "github.com/mattn/go-runewidth"
-  packages = ["."]
-  pruneopts = "UT"
-  revision = "9e777a8366cce605130a531d2cd6363d07ad7317"
-  version = "v0.0.2"
-
-[[projects]]
-  branch = "master"
-  digest = "1:c9b6e36dbd23f8403a04493376916ca5dad8c01b2da5ae0a05e6a468eb0b6f24"
-  name = "github.com/nsf/termbox-go"
-  packages = ["."]
-  pruneopts = "UT"
-  revision = "5c94acc5e6eb520f1bcd183974e01171cc4c23b3"
-
-[[projects]]
-  branch = "master"
-  digest = "1:9ec6ad2659635ba0974dd7e55bf84233523eb4e7535c9a2fddaefc4cc62a3eac"
-  name = "golang.org/x/sys"
-  packages = ["unix"]
-  pruneopts = "UT"
-  revision = "0ffbfd41fbef8ffcf9b62b0b0aa3a5873ed7a4fe"
-
-[solve-meta]
-  analyzer-name = "dep"
-  analyzer-version = 1
-  input-imports = [
-    "github.com/fatih/color",
-    "github.com/golang-collections/collections/stack",
-    "github.com/jesseduffield/gocui",
-  ]
-  solver-name = "gps-cdcl"
-  solver-version = 1

README.md

@@ -1,37 +1,227 @@
-# lazygit [![Go Report Card](https://goreportcard.com/badge/github.com/jesseduffield/lazygit)](https://goreportcard.com/report/github.com/jesseduffield/lazygit)
+<p align="center">
+  <img src="https://i.imgur.com/oYB7Cj8.png">
+</p>
+
+![CI](https://github.com/jesseduffield/lazygit/workflows/Continuous%20Integration/badge.svg) [![Go Report Card](https://goreportcard.com/badge/github.com/jesseduffield/lazygit)](https://goreportcard.com/report/github.com/jesseduffield/lazygit) [![GolangCI](https://golangci.com/badges/github.com/jesseduffield/lazygit.svg)](https://golangci.com) [![GoDoc](https://godoc.org/github.com/jesseduffield/lazygit?status.svg)](http://godoc.org/github.com/jesseduffield/lazygit) [![GitHub tag](https://img.shields.io/github/tag/jesseduffield/lazygit.svg)]() [![TODOs](https://badgen.net/https/api.tickgit.com/badgen/github.com/jesseduffield/lazygit)](https://www.tickgit.com/browse?repo=github.com/jesseduffield/lazygit)
+
+
+
 
 A simple terminal UI for git commands, written in Go with the [gocui](https://github.com/jroimartin/gocui "gocui") library.
 
-Are YOU tired of typing every git command directly into the terminal, but you're too stubborn to use Sourcetree because you'll never forgive Atlassian for making Jira? This is the app for you!
+Rant time: You've heard it before, git is _powerful_, but what good is that power when everything is so damn hard to do? Interactive rebasing requires you to edit a goddamn TODO file in your editor? *Are you kidding me?* To stage part of a file you need to use a command line program to step through each hunk and if a hunk can't be split down any further but contains code you don't want to stage, you have to edit an arcane patch file _by hand_? *Are you KIDDING me?!* Sometimes you get asked to stash your changes when switching branches only to realise that after you switch and unstash that there weren't even any conflicts and it would have been fine to just checkout the branch directly? *YOU HAVE GOT TO BE KIDDING ME!*
 
-[Tutorial](https://www.youtube.com/watch?v=VDXvbHZYeKY)
+If you're a mere mortal like me and you're tired of hearing how powerful git is when in your daily life it's a powerful pain in your ass, lazygit might be for you.
 
-![Gif](https://image.ibb.co/mmeXho/optimisedgif.gif)
+![Gif](/docs/resources/staging.gif)
+
+## Table of contents
+
+- [Installation](#installation)
+  - [Binary releases](#binary-releases)
+  - [Homebrew](#homebrew)
+  - [MacPorts](#macports)
+  - [Ubuntu](#ubuntu)
+  - [Void Linux](#void-linux)
+  - [Scoop (Windows)](#scoop-windows)
+  - [Arch Linux](#arch-linux)
+  - [Fedora and CentOS 7](#fedora-and-centos-7)
+  - [Solus Linux](#solus-linux)
+  - [FreeBSD](#freebsd)
+  - [Conda](#conda)
+  - [Go](#go)
+- [Usage](#usage)
+  - [Keybindings](#keybindings)
+  - [Changing directory on exit](#changing-directory-on-exit)
+  - [Undo/Redo](#undoredo)
+- [Configuration](#configuration)
+  - [Custom pagers](#configuration)
+- [Tutorials](#tutorials)
+- [Cool Features](#cool-features)
+- [Contributing](#contributing)
+- [Donate](#donate)
+- [Alternatives](#alternatives)
+
+Github Sponsors is matching all donations dollar-for-dollar for 12 months so if you're feeling generous consider [sponsoring me](https://github.com/sponsors/jesseduffield)
+
+[<img src="https://i.imgur.com/sVEktDn.png">](https://youtu.be/CPLdltN7wgE)
 
 ## Installation
-In a terminal call this command:
-`go get github.com/jesseduffield/lazygit`
-(if you don't have Go installed, you can follow the installation guide [here](https://golang.org/doc/install).
 
-Then just call `lazygit` in your terminal inside a git repository.
+### Binary Releases
 
-If you want, you can also add an alias for this with `echo "alias lg='lazygit'" >> ~/.zshrc` (or whichever rc file you're using).
+For Windows, Mac OS or Linux, you can download a binary release [here](../../releases).
 
-Please note:
-If you get an error claiming that lazygit cannot be found or is not defined, you may need to add `~/go/bin` to your $PATH (MacOS/Linux), or `%HOME%\go\bin` (Windows)
+### Homebrew
+
+Normally the lazygit formula can be found in the Homebrew core but we suggest you tap our formula to get the frequently updated one. It works with Linux, too.
+
+Tap:
+
+```
+brew install jesseduffield/lazygit/lazygit
+```
+
+Core:
+
+```
+brew install lazygit
+```
+
+### MacPorts
+
+Latest version built from github releases.
+Tap:
+
+```
+sudo port install lazygit
+```
 
 ### Ubuntu
-Packages for Ubuntu 16.04 and up are available via Launchpad PPA.
 
-They are built daily, straight from master branch.
+Packages for Ubuntu are available via [Launchpad PPA](https://launchpad.net/~lazygit-team).
 
 ```sh
-sudo add-apt-repository ppa:lazygit-team/daily
+sudo add-apt-repository ppa:lazygit-team/release
 sudo apt-get update
 sudo apt-get install lazygit
 ```
 
+### Void Linux
+
+Packages for Void Linux are available in the distro repo
+
+They follow upstream latest releases
+
+```sh
+sudo xbps-install -S lazygit
+```
+
+### Scoop (Windows)
+
+You can install `lazygit` using [scoop](https://scoop.sh/). It's in the `extras` bucket:
+
+```sh
+# Add the extras bucket
+scoop bucket add extras
+
+# Install lazygit
+scoop install lazygit
+```
+
+### Arch Linux
+
+Packages for Arch Linux are available via AUR (Arch User Repository).
+
+There are two packages. The stable one which is built with the latest release
+and the git version which builds from the most recent commit.
+
+- Stable: <https://aur.archlinux.org/packages/lazygit/>
+- Development: <https://aur.archlinux.org/packages/lazygit-git/>
+
+Instruction of how to install AUR content can be found here:
+<https://wiki.archlinux.org/index.php/Arch_User_Repository>
+
+### Fedora and CentOS 7
+
+Packages for Fedora and CentOS 7 are available via [Copr](https://copr.fedorainfracloud.org/coprs/atim/lazygit/) (Cool Other Package Repo).
+
+```sh
+sudo dnf copr enable atim/lazygit -y
+sudo dnf install lazygit
+```
+
+### Solus Linux
+
+```sh
+sudo eopkg install lazygit
+```
+
+### FreeBSD
+
+```sh
+pkg install lazygit
+```
+
+
+### Conda
+
+Released versions are available for different platforms, see <https://anaconda.org/conda-forge/lazygit>
+
+```sh
+conda install -c conda-forge lazygit
+```
+
+### Go
+
+```sh
+go get github.com/jesseduffield/lazygit
+```
+
+Please note:
+If you get an error claiming that lazygit cannot be found or is not defined, you
+may need to add `~/go/bin` to your \$PATH (MacOS/Linux), or `%HOME%\go\bin`
+(Windows). Not to be mistaked for `C:\Go\bin` (which is for Go's own binaries,
+not apps like Lazygit).
+
+
+## Usage
+
+Call `lazygit` in your terminal inside a git repository.
+
+```sh
+$ lazygit
+```
+
+If you want, you can
+also add an alias for this with `echo "alias lg='lazygit'" >> ~/.zshrc` (or
+whichever rc file you're using).
+
+### Keybindings
+
+You can check out the list of keybindings [here](/docs/keybindings).
+
+### Changing Directory On Exit
+
+If you change repos in lazygit and want your shell to change directory into that repo on exiting lazygit, add this to your `~/.zshrc` (or other rc file):
+
+```
+lg()
+{
+    export LAZYGIT_NEW_DIR_FILE=~/.lazygit/newdir
+
+    lazygit "$@"
+
+    if [ -f $LAZYGIT_NEW_DIR_FILE ]; then
+            cd "$(cat $LAZYGIT_NEW_DIR_FILE)"
+            rm -f $LAZYGIT_NEW_DIR_FILE > /dev/null
+    fi
+}
+```
+
+Then `source ~/.zshrc` and from now on when you call `lg` and exit you'll switch directories to whatever you were in inside lazyigt. To override this behaviour you can exit using `shift+Q` rather than just `q`.
+
+### Undo/Redo
+
+See the [docs](/docs/Undoing.md)
+
+## Configuration
+
+Check out the [configuration docs](docs/Config.md).
+
+### Custom Pagers
+
+See the [docs](docs/Custom_Pagers.md)
+
+## Tutorials
+
+- [Video Tutorial](https://youtu.be/VDXvbHZYeKY)
+- [Rebase Magic Video Tutorial](https://youtu.be/4XaToVut_hs)
+- [Twitch Stream](https://www.twitch.tv/jesseduffield)
+
+
 ## Cool features
+
 - Adding files easily
 - Resolving merge conflicts
 - Easily check out recent branches
@@ -40,24 +230,40 @@ sudo apt-get install lazygit
 - Squash down and rename commits
 
 ### Resolving merge conflicts
-![Gif](https://image.ibb.co/iyxUTT/shortermerging.gif)
 
-### Viewing commit diffs
-![Viewing Commit Diffs](https://image.ibb.co/gPD02o/capture.png)
+![Gif](/docs/resources/resolving-merge-conflicts.gif)
 
-## Docs
-[Keybindings](https://github.com/jesseduffield/lazygit/blob/master/docs/Keybindings.md)
+### Interactive Rebasing
 
-## Milestones
-- [ ] Easy Installation (homebrew, release binaries)
-- [ ] Configurable Keybindings
-- [ ] Configurable Color Themes
-- [ ] Spawning Subprocesses (help needed - have a look at https://github.com/jesseduffield/lazygit/pull/18)
-- [ ] Performance
-- [ ] i18n
+![Interactive Rebasing](/docs/resources/rebase.gif)
 
 ## Contributing
+
 We love your input! Please check out the [contributing guide](CONTRIBUTING.md).
+For contributor discussion about things not better discussed here in the repo, join the slack channel
+
+[![Slack](/docs/resources/slack_rgb.png)](https://join.slack.com/t/lazygit/shared_invite/zt-5bo2clzo-hB8ZTVN5dWUCqj5QFiQVLA)
+
+## Donate
+
+If you would like to support the development of lazygit, consider [sponsoring me](https://github.com/sponsors/jesseduffield) (github is matching all donations dollar-for-dollar for 12 months)
 
 ## Work in progress
-This is still a work in progress so there's still bugs to iron out and as this is my first project in Go the code could no doubt use an increase in quality, but I'll be improving on it whenever I find the time. If you have any feedback feel free to [raise an issue](https://github.com/jesseduffield/lazygit/issues)/[submit a PR](https://github.com/jesseduffield/lazygit/pulls).
+
+This is still a work in progress so there's still bugs to iron out and as this
+is my first project in Go the code could no doubt use an increase in quality,
+but I'll be improving on it whenever I find the time. If you have any feedback
+feel free to [raise an issue](https://github.com/jesseduffield/lazygit/issues)/[submit a PR](https://github.com/jesseduffield/lazygit/pulls).
+
+## Social
+
+If you want to see what I (Jesse) am up to in terms of development, follow me on
+[twitter](https://twitter.com/DuffieldJesse) or watch me program on
+[twitch](https://www.twitch.tv/jesseduffield).
+
+## Alternatives
+
+If you find that lazygit doesn't quite satisfy your requirements, these may be a better fit:
+
+- [GitUI](https://github.com/Extrawurst/gitui)
+- [tig](https://github.com/jonas/tig)

branches_panel.go

@@ -1,120 +0,0 @@
-package main
-
-import (
-	"fmt"
-	"strings"
-
-	"github.com/jesseduffield/gocui"
-)
-
-func handleBranchPress(g *gocui.Gui, v *gocui.View) error {
-	index := getItemPosition(v)
-	if index == 0 {
-		return createErrorPanel(g, "You have already checked out this branch")
-	}
-	branch := getSelectedBranch(v)
-	if output, err := gitCheckout(branch.Name, false); err != nil {
-		createErrorPanel(g, output)
-	}
-	return refreshSidePanels(g)
-}
-
-func handleForceCheckout(g *gocui.Gui, v *gocui.View) error {
-	branch := getSelectedBranch(v)
-	return createConfirmationPanel(g, v, "Force Checkout Branch", "Are you sure you want force checkout? You will lose all local changes", func(g *gocui.Gui, v *gocui.View) error {
-		if output, err := gitCheckout(branch.Name, true); err != nil {
-			createErrorPanel(g, output)
-		}
-		return refreshSidePanels(g)
-	}, nil)
-}
-
-func handleCheckoutByName(g *gocui.Gui, v *gocui.View) error {
-	createPromptPanel(g, v, "Branch Name:", func(g *gocui.Gui, v *gocui.View) error {
-		if output, err := gitCheckout(trimmedContent(v), false); err != nil {
-			return createErrorPanel(g, output)
-		}
-		return refreshSidePanels(g)
-	})
-	return nil
-}
-
-func handleNewBranch(g *gocui.Gui, v *gocui.View) error {
-	branch := state.Branches[0]
-	createPromptPanel(g, v, "New Branch Name (Branch is off of "+branch.Name+")", func(g *gocui.Gui, v *gocui.View) error {
-		if output, err := gitNewBranch(trimmedContent(v)); err != nil {
-			return createErrorPanel(g, output)
-		}
-		refreshSidePanels(g)
-		return handleBranchSelect(g, v)
-	})
-	return nil
-}
-
-func handleMerge(g *gocui.Gui, v *gocui.View) error {
-	checkedOutBranch := state.Branches[0]
-	selectedBranch := getSelectedBranch(v)
-	defer refreshSidePanels(g)
-	if checkedOutBranch.Name == selectedBranch.Name {
-		return createErrorPanel(g, "You cannot merge a branch into itself")
-	}
-	if output, err := gitMerge(selectedBranch.Name); err != nil {
-		return createErrorPanel(g, output)
-	}
-	return nil
-}
-
-func getSelectedBranch(v *gocui.View) Branch {
-	lineNumber := getItemPosition(v)
-	return state.Branches[lineNumber]
-}
-
-func renderBranchesOptions(g *gocui.Gui) error {
-	return renderOptionsMap(g, map[string]string{
-		"space":   "checkout",
-		"f":       "force checkout",
-		"m":       "merge",
-		"c":       "checkout by name",
-		"n":       "new branch",
-		"← → ↑ ↓": "navigate",
-	})
-}
-
-// may want to standardise how these select methods work
-func handleBranchSelect(g *gocui.Gui, v *gocui.View) error {
-	if err := renderBranchesOptions(g); err != nil {
-		return err
-	}
-	// This really shouldn't happen: there should always be a master branch
-	if len(state.Branches) == 0 {
-		return renderString(g, "main", "No branches for this repo")
-	}
-	go func() {
-		branch := getSelectedBranch(v)
-		diff, err := getBranchGraph(branch.Name, branch.BaseBranch)
-		if err != nil && strings.HasPrefix(diff, "fatal: ambiguous argument") {
-			diff = "There is no tracking for this branch"
-		}
-		renderString(g, "main", diff)
-	}()
-	return nil
-}
-
-// refreshStatus is called at the end of this because that's when we can
-// be sure there is a state.Branches array to pick the current branch from
-func refreshBranches(g *gocui.Gui) error {
-	g.Update(func(g *gocui.Gui) error {
-		v, err := g.View("branches")
-		if err != nil {
-			panic(err)
-		}
-		state.Branches = getGitBranches()
-		v.Clear()
-		for _, branch := range state.Branches {
-			fmt.Fprintln(v, branch.DisplayString)
-		}
-		resetOrigin(v)
-		return refreshStatus(g)
-	})
-	return nil
-}

commits_panel.go

@@ -1,138 +0,0 @@
-package main
-
-import (
-	"errors"
-
-	"github.com/fatih/color"
-	"github.com/jesseduffield/gocui"
-)
-
-var (
-	// ErrNoCommits : When no commits are found for the branch
-	ErrNoCommits = errors.New("No commits for this branch")
-)
-
-func refreshCommits(g *gocui.Gui) error {
-	g.Update(func(*gocui.Gui) error {
-		state.Commits = getCommits()
-		v, err := g.View("commits")
-		if err != nil {
-			panic(err)
-		}
-		v.Clear()
-		red := color.New(color.FgRed)
-		yellow := color.New(color.FgYellow)
-		white := color.New(color.FgWhite)
-		shaColor := white
-		for _, commit := range state.Commits {
-			if commit.Pushed {
-				shaColor = red
-			} else {
-				shaColor = yellow
-			}
-			shaColor.Fprint(v, commit.Sha+" ")
-			white.Fprintln(v, commit.Name)
-		}
-		refreshStatus(g)
-		return nil
-	})
-	return nil
-}
-
-func handleResetToCommit(g *gocui.Gui, commitView *gocui.View) error {
-	return createConfirmationPanel(g, commitView, "Reset To Commit", "Are you sure you want to reset to this commit?", func(g *gocui.Gui, v *gocui.View) error {
-		commit, err := getSelectedCommit(g)
-		devLog(commit)
-		if err != nil {
-			panic(err)
-		}
-		if output, err := gitResetToCommit(commit.Sha); err != nil {
-			return createErrorPanel(g, output)
-		}
-		if err := refreshCommits(g); err != nil {
-			panic(err)
-		}
-		if err := refreshFiles(g); err != nil {
-			panic(err)
-		}
-		resetOrigin(commitView)
-		return handleCommitSelect(g, nil)
-	}, nil)
-}
-
-func renderCommitsOptions(g *gocui.Gui) error {
-	return renderOptionsMap(g, map[string]string{
-		"s":       "squash down",
-		"r":       "rename",
-		"g":       "reset to this commit",
-		"← → ↑ ↓": "navigate",
-	})
-}
-
-func handleCommitSelect(g *gocui.Gui, v *gocui.View) error {
-	if err := renderCommitsOptions(g); err != nil {
-		return err
-	}
-	commit, err := getSelectedCommit(g)
-	if err != nil {
-		if err != ErrNoCommits {
-			return err
-		}
-		return renderString(g, "main", "No commits for this branch")
-	}
-	commitText := gitShow(commit.Sha)
-	return renderString(g, "main", commitText)
-}
-
-func handleCommitSquashDown(g *gocui.Gui, v *gocui.View) error {
-	if getItemPosition(v) != 0 {
-		return createErrorPanel(g, "Can only squash topmost commit")
-	}
-	if len(state.Commits) == 1 {
-		return createErrorPanel(g, "You have no commits to squash with")
-	}
-	commit, err := getSelectedCommit(g)
-	if err != nil {
-		return err
-	}
-	if output, err := gitSquashPreviousTwoCommits(commit.Name); err != nil {
-		return createErrorPanel(g, output)
-	}
-	if err := refreshCommits(g); err != nil {
-		panic(err)
-	}
-	refreshStatus(g)
-	return handleCommitSelect(g, v)
-}
-
-func handleRenameCommit(g *gocui.Gui, v *gocui.View) error {
-	if getItemPosition(v) != 0 {
-		return createErrorPanel(g, "Can only rename topmost commit")
-	}
-	createPromptPanel(g, v, "Rename Commit", func(g *gocui.Gui, v *gocui.View) error {
-		if output, err := gitRenameCommit(v.Buffer()); err != nil {
-			return createErrorPanel(g, output)
-		}
-		if err := refreshCommits(g); err != nil {
-			panic(err)
-		}
-		return handleCommitSelect(g, v)
-	})
-	return nil
-}
-
-func getSelectedCommit(g *gocui.Gui) (Commit, error) {
-	v, err := g.View("commits")
-	if err != nil {
-		panic(err)
-	}
-	if len(state.Commits) == 0 {
-		return Commit{}, ErrNoCommits
-	}
-	lineNumber := getItemPosition(v)
-	if lineNumber > len(state.Commits)-1 {
-		colorLog(color.FgRed, "potential error in getSelected Commit (mismatched ui and state)", state.Commits, lineNumber)
-		return state.Commits[len(state.Commits)-1], nil
-	}
-	return state.Commits[lineNumber], nil
-}

confirmation_panel.go

@@ -1,119 +0,0 @@
-// lots of this has been directly ported from one of the example files, will brush up later
-
-// Copyright 2014 The gocui Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package main
-
-import (
-	"strings"
-
-	"github.com/fatih/color"
-	"github.com/jesseduffield/gocui"
-)
-
-func wrappedConfirmationFunction(function func(*gocui.Gui, *gocui.View) error) func(*gocui.Gui, *gocui.View) error {
-	return func(g *gocui.Gui, v *gocui.View) error {
-		if function != nil {
-			if err := function(g, v); err != nil {
-				panic(err)
-			}
-		}
-		return closeConfirmationPrompt(g)
-	}
-}
-
-func closeConfirmationPrompt(g *gocui.Gui) error {
-	view, err := g.View("confirmation")
-	if err != nil {
-		panic(err)
-	}
-	if err := returnFocus(g, view); err != nil {
-		panic(err)
-	}
-	g.DeleteKeybindings("confirmation")
-	return g.DeleteView("confirmation")
-}
-
-func getMessageHeight(message string, width int) int {
-	lines := strings.Split(message, "\n")
-	lineCount := 0
-	for _, line := range lines {
-		lineCount += len(line)/width + 1
-	}
-	return lineCount
-}
-
-func getConfirmationPanelDimensions(g *gocui.Gui, prompt string) (int, int, int, int) {
-	width, height := g.Size()
-	panelWidth := 60
-	panelHeight := getMessageHeight(prompt, panelWidth)
-	return width/2 - panelWidth/2,
-		height/2 - panelHeight/2 - panelHeight%2 - 1,
-		width/2 + panelWidth/2,
-		height/2 + panelHeight/2
-}
-
-func createPromptPanel(g *gocui.Gui, currentView *gocui.View, title string, handleYes func(*gocui.Gui, *gocui.View) error) error {
-	// only need to fit one line
-	x0, y0, x1, y1 := getConfirmationPanelDimensions(g, "")
-	if confirmationView, err := g.SetView("confirmation", x0, y0, x1, y1, 0); err != nil {
-		if err != gocui.ErrUnknownView {
-			return err
-		}
-
-		g.Cursor = true
-
-		confirmationView.Editable = true
-		confirmationView.Title = title
-		confirmationView.FgColor = gocui.ColorWhite
-		switchFocus(g, currentView, confirmationView)
-		return setKeyBindings(g, handleYes, nil)
-	}
-	return nil
-}
-
-func createConfirmationPanel(g *gocui.Gui, currentView *gocui.View, title, prompt string, handleYes, handleNo func(*gocui.Gui, *gocui.View) error) error {
-	g.Update(func(g *gocui.Gui) error {
-		// delete the existing confirmation panel if it exists
-		if view, _ := g.View("confirmation"); view != nil {
-			if err := closeConfirmationPrompt(g); err != nil {
-				panic(err)
-			}
-		}
-		x0, y0, x1, y1 := getConfirmationPanelDimensions(g, prompt)
-		if confirmationView, err := g.SetView("confirmation", x0, y0, x1, y1, 0); err != nil {
-			if err != gocui.ErrUnknownView {
-				return err
-			}
-			confirmationView.Title = title
-			confirmationView.FgColor = gocui.ColorWhite
-			renderString(g, "confirmation", prompt)
-			switchFocus(g, currentView, confirmationView)
-			return setKeyBindings(g, handleYes, handleNo)
-		}
-		return nil
-	})
-	return nil
-}
-
-func setKeyBindings(g *gocui.Gui, handleYes, handleNo func(*gocui.Gui, *gocui.View) error) error {
-	renderString(g, "options", "esc: close, enter: confirm")
-	if err := g.SetKeybinding("confirmation", gocui.KeyEnter, gocui.ModNone, wrappedConfirmationFunction(handleYes)); err != nil {
-		return err
-	}
-
-	return g.SetKeybinding("confirmation", gocui.KeyEsc, gocui.ModNone, wrappedConfirmationFunction(handleNo))
-}
-
-func createMessagePanel(g *gocui.Gui, currentView *gocui.View, title, prompt string) error {
-	return createConfirmationPanel(g, currentView, title, prompt, nil, nil)
-}
-
-func createErrorPanel(g *gocui.Gui, message string) error {
-	currentView := g.CurrentView()
-	colorFunction := color.New(color.FgRed).SprintFunc()
-	coloredMessage := colorFunction(strings.TrimSpace(message))
-	return createConfirmationPanel(g, currentView, "Error", coloredMessage, nil, nil)
-}

docs/Config.md

@@ -0,0 +1,320 @@
+# User Config
+
+Default path for the config file:
+
+* Linux: `~/.config/jesseduffield/lazygit/config.yml`
+* MacOS: `~/Library/Application Support/jesseduffield/lazygit/config.yml`
+* Windows: `%APPDATA%\jesseduffield\lazygit\config.yml`
+
+## Default
+
+```yaml
+  gui:
+    # stuff relating to the UI
+    scrollHeight: 2 # how many lines you scroll by
+    scrollPastBottom: true # enable scrolling past the bottom
+    sidePanelWidth: 0.3333 # number from 0 to 1
+    expandFocusedSidePanel: false
+    mainPanelSplitMode: 'flexible' # one of 'horizontal' | 'flexible' | 'vertical'
+    theme:
+      lightTheme: false # For terminals with a light background
+      activeBorderColor:
+        - white
+        - bold
+      inactiveBorderColor:
+        - green
+      optionsTextColor:
+        - blue
+      selectedLineBgColor:
+        - default
+      selectedRangeBgColor:
+        - blue
+    commitLength:
+      show: true
+    mouseEvents: true
+    skipUnstageLineWarning: false
+    skipStashWarning: true
+  git:
+    paging:
+      colorArg: always
+      useConfig: false
+    merging:
+      # only applicable to unix users
+      manualCommit: false
+      # extra args passed to `git merge`, e.g. --no-ff
+      args: ""
+    pull:
+      mode: 'merge' # one of 'merge' | 'rebase' | 'ff-only'
+    skipHookPrefix: WIP
+    autoFetch: true
+    branchLogCmd: "git log --graph --color=always --abbrev-commit --decorate --date=relative --pretty=medium {{branchName}} --"
+    overrideGpg: false # prevents lazygit from spawning a separate process when using GPG
+    disableForcePushing: false
+  update:
+    method: prompt # can be: prompt | background | never
+    days: 14 # how often an update is checked for
+  reporting: 'undetermined' # one of: 'on' | 'off' | 'undetermined'
+  confirmOnQuit: false
+  # determines whether hitting 'esc' will quit the application when there is nothing to cancel/close
+  quitOnTopLevelReturn: true
+  keybinding:
+    universal:
+      quit: 'q'
+      quit-alt1: '<c-c>' # alternative/alias of quit
+      return: '<esc>' # return to previous menu, will quit if there's nowhere to return
+      quitWithoutChangingDirectory: 'Q'
+      togglePanel: '<tab>' # goto the next panel
+      prevItem: '<up>' # go one line up
+      nextItem: '<down>' # go one line down
+      prevItem-alt: 'k' # go one line up
+      nextItem-alt: 'j' # go one line down
+      prevPage: ',' # go to next page in list
+      nextPage: '.' # go to previous page in list
+      gotoTop: '<' # go to top of list
+      gotoBottom: '>' # go to bottom of list
+      prevBlock: '<left>' # goto the previous block / panel
+      nextBlock: '<right>' # goto the next block / panel
+      prevBlock-alt: 'h' # goto the previous block / panel
+      nextBlock-alt: 'l' # goto the next block / panel
+      nextMatch: 'n'
+      prevMatch: 'N'
+      optionMenu: 'x' # show help menu
+      optionMenu-alt1: '?' # show help menu
+      select: '<space>'
+      goInto: '<enter>'
+      confirm: '<enter>'
+      confirm-alt1: 'y'
+      remove: 'd'
+      new: 'n'
+      edit: 'e'
+      openFile: 'o'
+      scrollUpMain: '<pgup>' # main panel scrool up
+      scrollDownMain: '<pgdown>' # main panel scrool down
+      scrollUpMain-alt1: 'K' # main panel scrool up
+      scrollDownMain-alt1: 'J' # main panel scrool down
+      scrollUpMain-alt2: '<c-u>' # main panel scrool up
+      scrollDownMain-alt2: '<c-d>' # main panel scrool down
+      executeCustomCommand: ':'
+      createRebaseOptionsMenu: 'm'
+      pushFiles: 'P'
+      pullFiles: 'p'
+      refresh: 'R'
+      createPatchOptionsMenu: '<c-p>'
+      nextTab: ']'
+      prevTab: '['
+      nextScreenMode: '+'
+      prevScreenMode: '_'
+      undo: 'z'
+      redo: '<c-z>'
+      filteringMenu: '<c-s>'
+      diffingMenu: 'W'
+      diffingMenu-alt: '<c-e>' # deprecated
+      copyToClipboard: '<c-o>'
+    status:
+      checkForUpdate: 'u'
+      recentRepos: '<enter>'
+    files:
+      commitChanges: 'c'
+      commitChangesWithoutHook: 'w' # commit changes without pre-commit hook
+      amendLastCommit: 'A'
+      commitChangesWithEditor: 'C'
+      ignoreFile: 'i'
+      refreshFiles: 'r'
+      stashAllChanges: 's'
+      viewStashOptions: 'S'
+      toggleStagedAll: 'a' # stage/unstage all
+      viewResetOptions: 'D'
+      fetch: 'f'
+    branches:
+      createPullRequest: 'o'
+      checkoutBranchByName: 'c'
+      forceCheckoutBranch: 'F'
+      rebaseBranch: 'r'
+      mergeIntoCurrentBranch: 'M'
+      viewGitFlowOptions: 'i'
+      fastForward: 'f' # fast-forward this branch from its upstream
+      pushTag: 'P'
+      setUpstream: 'u' # set as upstream of checked-out branch
+      fetchRemote: 'f'
+    commits:
+      squashDown: 's'
+      renameCommit: 'r'
+      renameCommitWithEditor: 'R'
+      viewResetOptions: 'g'
+      markCommitAsFixup: 'f'
+      createFixupCommit: 'F' # create fixup commit for this commit
+      squashAboveCommits: 'S'
+      moveDownCommit: '<c-j>' # move commit down one
+      moveUpCommit: '<c-k>' # move commit up one
+      amendToCommit: 'A'
+      pickCommit: 'p' # pick commit (when mid-rebase)
+      revertCommit: 't'
+      cherryPickCopy: 'c'
+      cherryPickCopyRange: 'C'
+      pasteCommits: 'v'
+      tagCommit: 'T'
+      checkoutCommit: '<space>'
+      resetCherryPick: '<c-R>'
+    stash:
+      popStash: 'g'
+    commitFiles:
+      checkoutCommitFile: 'c'
+    main:
+      toggleDragSelect: 'v'
+      toggleDragSelect-alt: 'V'
+      toggleSelectHunk: 'a'
+      pickBothHunks: 'b'
+```
+
+## Platform Defaults
+
+### Windows
+
+```yaml
+  os:
+    openCommand: 'cmd /c "start "" {{filename}}"'
+```
+
+### Linux
+
+```yaml
+  os:
+    openCommand: 'sh -c "xdg-open {{filename}} >/dev/null"'
+```
+
+### OSX
+
+```yaml
+  os:
+    openCommand: 'open {{filename}}'
+```
+
+### Recommended Config Values
+
+for users of VSCode
+
+```yaml
+  os:
+    openCommand: 'code -rg {{filename}}'
+```
+
+## Color Attributes
+
+For color attributes you can choose an array of attributes (with max one color attribute)
+The available attributes are:
+
+- default
+- black
+- red
+- green
+- yellow
+- blue
+- magenta
+- cyan
+- white
+- bold
+- reverse # useful for high-contrast
+- underline
+
+## Light terminal theme
+
+If you have issues with a light terminal theme where you can't read / see the text add these settings
+
+```yaml
+  gui:
+    theme:
+      lightTheme: true
+      activeBorderColor:
+        - black
+        - bold
+      inactiveBorderColor:
+        - black
+      selectedLineBgColor:
+        - default
+```
+
+## Struggling to see selected line
+
+If you struggle to see the selected line I recomment using the reverse attribute on selected lines like so:
+
+```yaml
+  gui:
+    theme:
+      selectedLineBgColor:
+        - reverse
+      selectedRangeBgColor:
+        - reverse
+```
+
+## Example Coloring
+
+![border example](/docs/resources/colored-border-example.png)
+
+## Keybindings
+
+For all possible keybinding options, check [Custom_Keybindings.md](https://github.com/jesseduffield/lazygit/blob/master/docs/keybindings/Custom_Keybindings.md)
+
+### Example Keybindings For Colemak Users
+
+```yaml
+  keybinding:
+    universal:
+      prevItem-alt: 'u'
+      nextItem-alt: 'e'
+      prevBlock-alt: 'n'
+      nextBlock-alt: 'i'
+      nextMatch: '='
+      prevMatch: '-'
+      new: 'k'
+      edit: 'o'
+      openFile: 'O'
+      scrollUpMain-alt1: 'U'
+      scrollDownMain-alt1: 'E'
+      scrollUpMain-alt2: '<c-u>'
+      scrollDownMain-alt2: '<c-e>'
+      undo: 'l'
+      redo: '<c-r>'
+      diffingMenu: 'M'
+      filteringMenu: '<c-f>'
+    files:
+      ignoreFile: 'I'
+    commits:
+      moveDownCommit: '<c-e>'
+      moveUpCommit: '<c-u>'
+    branches:
+      viewGitFlowOptions: 'I'
+      setUpstream: 'U'
+```
+
+## Custom pull request URLs
+
+Some git provider setups (e.g. on-premises GitLab) can have distinct URLs for git-related calls and
+the web interface/API itself. To work with those, Lazygit needs to know where it needs to create
+the pull request. You can do so on your `config.yml` file using the following syntax:
+
+```yaml
+services:
+  "<gitDomain>": "<provider>:<webDomain>"
+```
+
+Where:
+
+- `gitDomain` stands for the domain used by git itself (i.e. the one present on clone URLs), e.g. `git.work.com`
+- `provider` is one of `github`, `bitbucket` or `gitlab`
+- `webDomain` is the URL where your git service exposes a web interface and APIs, e.g. `gitservice.work.com`
+
+## Predefined commit message prefix
+In situations where certain naming pattern is used for branches and commits, pattern can be used to populate
+commit message with prefix that is parsed from the branch name.
+
+Example:
+* Branch name: feature/AB-123
+* Commit message: [AB-123] Adding feature
+
+```yaml
+  git:
+    commitPrefixes:
+      my_project: # This is repository folder name
+        pattern: "^\\w+\\/(\\w+-\\w+)"
+        replace: "[$1] "
+```

docs/Custom_Pagers.md

@@ -0,0 +1,64 @@
+# Custom Pagers
+
+Lazygit supports custom pagers, [configured](/docs/Config.md) in the config.yml file (which can be opened by pressing `o` in the Status panel).
+
+Support does not extend to Windows users, because we're making use of a package which doesn't have Windows support.
+
+## Default:
+
+```yaml
+git:
+  paging:
+    colorArg: always
+    useConfig: false
+```
+
+the `colorArg` key is for whether you want the `--color=always` arg in your `git diff` command. Some pagers want it set to `always`, others want it set to `never`.
+
+## Delta:
+
+```yaml
+git:
+  paging:
+    colorArg: always
+    pager: delta --dark --paging=never --24-bit-color=never
+```
+
+![](https://i.imgur.com/QJpQkF3.png)
+
+## Diff-so-fancy
+
+```yaml
+git:
+  paging:
+    colorArg: always
+    pager: diff-so-fancy
+```
+
+![](https://i.imgur.com/rjH1TpT.png)
+
+## ydiff
+
+```yaml
+gui:
+  sidePanelWidth: 0.2 # gives you more space to show things side-by-side
+git:
+  paging:
+    colorArg: never
+    pager: ydiff -p cat -s --wrap --width={{columnWidth}}
+```
+
+![](https://i.imgur.com/vaa8z0H.png)
+
+Be careful with this one, I think the homebrew and pip versions are behind master. I needed to directly download the ydiff script to get the no-pager functionality working.
+
+## Using git config
+
+```yaml
+git:
+  paging:
+    colorArg: always
+    useConfig: true
+```
+
+If you set `useConfig: true`, lazygit will use whatever pager is specified in `$GIT_PAGER`, `$PAGER`, or your *git config*. If the pager ends with something like ` | less` we will strip that part out, because less doesn't play nice with our rendering approach. If the custom pager uses less under the hood, that will also break rendering (hence the `--paging=never` flag for the `delta` pager).

docs/Keybindings.md

@@ -1,54 +0,0 @@
-# Keybindings:
-
-## Global:
-
-      ← → ↑ ↓:   navigate
-      PgUp/PgDn: scroll diff panel (use fn+up/down on osx)
-      q:         quit
-      p:         pull
-      shift+P:   push
-
-## Files Panel:
-
-      space:    toggle staged
-      c:        commit changes
-      shift+S:  stash files
-      o:        open (osx only)
-      s:        open in sublime (requires 'subl' command)
-      v:        open in vscode (requires 'code' command)
-      i:        add to .gitignore
-      d:        delete if untracked checkout if tracked (aka go away)
-      shift+R:  refresh files
-
-## Branches Panel:
-
-      space:    checkout branch
-      f:        force checkout branch
-      m:        merge into currently checked out branch
-      c:        checkout by name
-      n:        new branch
-
-## Commits Panel:
-
-      s:       squash down (only available for topmost commit)
-      r:       rename commit
-      g:       reset to this commit
-
-## Stash Panel:
-
-      space:   apply
-      k:       pop
-      d:       drop
-
-## Popup Panel:
-
-      esc:     close/cancel
-      enter:   confirm
-
-## Resolving Merge Conflicts (Diff Panel):
-
-      ← →:   navigate conflicts
-      ↑ ↓:   select hunk
-      space: pick hunk
-      b:     pick both hunks
-      z:     undo (only available while still inside diff panel)

docs/Undoing.md

@@ -0,0 +1,24 @@
+# Undo/Redo in lazygit
+
+![Gif](/docs/resources/undo2.gif)
+
+## Keybindings:
+'z' to undo, 'ctrl+z' to redo
+
+## How it works
+
+If you're as clumsy as me you'll probably have felt the pain of botching an interactive rebase or doing a hard reset onto the wrong commit. Luckily, the reflog allows you to trace your steps and make things right again, but I personally can't stand trying to make sense of the reflog.
+
+Lazygit can read through your reflog for you and walk back action by action so that you don't even need to read the reflog. If lazygit finds a reflog entry where you checked out a branch, we'll checkout the original branch. If the entry is from a commit being applied, we'll go back to the commit before that. If we hit an interactive rebase, we'll go back to the commit you were on just before you started it.
+
+## You can even undo things you did outside of lazygit!
+
+Because lazygit just uses the reflog to keep track of things, it doesn't matter whether you're trying to undo something you did in lazygit or directly on the command line. You can open lazygit for the first time and start undoing thing in your repo! Likewise, lazygit marks its undos/redos in the reflog so if you quit the application and come back, lazygit still knows where you're up to.
+
+## Limitations
+
+There are limitations: firstly, lazygit can only undo things that are recorded in the reflog. That means changes to your working tree or stash aren't covered. Secondly, anything permanent you do like pushing to a remote can't be undone. Thirdly, actions like creating a branch won't be undone, because they're not stored in the reflog.
+
+If you are mid-rebase, undo/redo is not supported, because the reflog doesn't enough contain information about what specific things have happened inside that rebase. If you want to undo out of a rebase, it's best to abort the rebase (the default keybinding for bringing up rebase options is 'm').
+
+Undo/Redo is a new feature so if you find a bug let us know. The worst case scenario is that you'll just need to look at your reflog and manually put yourself back on track.

docs/keybindings/Custom_Keybindings.md

@@ -0,0 +1,59 @@
+## Possible keybindings
+| Put in        | You will get   |
+|---------------|----------------|
+| `<f1>`        | F1             |
+| `<f2>`        | F2             |
+| `<f3>`        | F3             |
+| `<f4>`        | F4             |
+| `<f5>`        | F5             |
+| `<f6>`        | F6             |
+| `<f7>`        | F7             |
+| `<f8>`        | F8             |
+| `<f9>`        | F9             |
+| `<f10>`       | F10            |
+| `<f11>`       | F11            |
+| `<f12>`       | F12            |
+| `<insert>`    | Insert         |
+| `<delete>`    | Delete         |
+| `<home>`      | Home           |
+| `<end>`       | End            |
+| `<pgup>`      | Pgup           |
+| `<pgdown>`    | Pgdn           |
+| `<up>`        | ArrowUp        |
+| `<down>`      | ArrowDown      |
+| `<left>`      | ArrowLeft      |
+| `<right>`     | ArrowRight     |
+| `<tab>`       | Tab            |
+| `<enter>`     | Enter          |
+| `<esc>`       | Esc            |
+| `<backspace>` | Backspace      |
+| `<c-space>`   | CtrlSpace      |
+| `<c-/>`       | CtrlSlash      |
+| `<space>`     | Space          |
+| `<c-a>`       | CtrlA          |
+| `<c-b>`       | CtrlB          |
+| `<c-c>`       | CtrlC          |
+| `<c-d>`       | CtrlD          |
+| `<c-e>`       | CtrlE          |
+| `<c-f>`       | CtrlF          |
+| `<c-g>`       | CtrlG          |
+| `<c-j>`       | CtrlJ          |
+| `<c-k>`       | CtrlK          |
+| `<c-l>`       | CtrlL          |
+| `<c-n>`       | CtrlN          |
+| `<c-o>`       | CtrlO          |
+| `<c-p>`       | CtrlP          |
+| `<c-q>`       | CtrlQ          |
+| `<c-r>`       | CtrlR          |
+| `<c-s>`       | CtrlS          |
+| `<c-t>`       | CtrlT          |
+| `<c-u>`       | CtrlU          |
+| `<c-v>`       | CtrlV          |
+| `<c-w>`       | CtrlW          |
+| `<c-x>`       | CtrlX          |
+| `<c-y>`       | CtrlY          |
+| `<c-z>`       | CtrlZ          |
+| `<c-4>`       | Ctrl4          |
+| `<c-5>`       | Ctrl5          |
+| `<c-6>`       | Ctrl6          |
+| `<c-8>`       | Ctrl8          |

docs/keybindings/Keybindings_en.md

@@ -0,0 +1,284 @@
+# Lazygit Keybindings
+
+## Global Keybindings
+
+<pre>
+  <kbd>pgup</kbd>: scroll up main panel (fn+up)
+  <kbd>pgdown</kbd>: scroll down main panel (fn+down)
+  <kbd>m</kbd>: view merge/rebase options
+  <kbd>ctrl+p</kbd>: view custom patch options
+  <kbd>P</kbd>: push
+  <kbd>p</kbd>: pull
+  <kbd>R</kbd>: refresh
+  <kbd>x</kbd>: open menu
+  <kbd>z</kbd>: undo (via reflog) (experimental)
+  <kbd>ctrl+z</kbd>: redo (via reflog) (experimental)
+  <kbd>+</kbd>: next screen mode (normal/half/fullscreen)
+  <kbd>_</kbd>: prev screen mode
+  <kbd>:</kbd>: execute custom command
+  <kbd>|</kbd>: view scoping options
+  <kbd>∂</kbd>: open diff menu
+</pre>
+
+## Branches Panel
+
+<pre>
+  <kbd>]</kbd>: next tab
+  <kbd>[</kbd>: previous tab
+</pre>
+
+## Branches Panel (Branches Tab)
+
+<pre>
+  <kbd>space</kbd>: checkout
+  <kbd>o</kbd>: create pull request
+  <kbd>c</kbd>: checkout by name
+  <kbd>F</kbd>: force checkout
+  <kbd>n</kbd>: new branch
+  <kbd>d</kbd>: delete branch
+  <kbd>r</kbd>: rebase checked-out branch onto this branch
+  <kbd>M</kbd>: merge into currently checked out branch
+  <kbd>i</kbd>: show git-flow options
+  <kbd>f</kbd>: fast-forward this branch from its upstream
+  <kbd>g</kbd>: view reset options
+  <kbd>R</kbd>: rename branch
+  <kbd>ctrl+o</kbd>: copy branch name to clipboard
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Branches Panel (Remote Branches (in Remotes tab))
+
+<pre>
+  <kbd>esc</kbd>: Return to remotes list
+  <kbd>g</kbd>: view reset options
+  <kbd>space</kbd>: checkout
+  <kbd>n</kbd>: new branch
+  <kbd>M</kbd>: merge into currently checked out branch
+  <kbd>d</kbd>: delete branch
+  <kbd>r</kbd>: rebase checked-out branch onto this branch
+  <kbd>u</kbd>: set as upstream of checked-out branch
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Branches Panel (Remotes Tab)
+
+<pre>
+  <kbd>f</kbd>: fetch remote
+  <kbd>n</kbd>: add new remote
+  <kbd>d</kbd>: remove remote
+  <kbd>e</kbd>: edit remote
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Branches Panel (Tags Tab)
+
+<pre>
+  <kbd>space</kbd>: checkout
+  <kbd>d</kbd>: delete tag
+  <kbd>P</kbd>: push tag
+  <kbd>n</kbd>: create tag
+  <kbd>g</kbd>: view reset options
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Commit Files Panel
+
+<pre>
+  <kbd>esc</kbd>: go back
+  <kbd>c</kbd>: checkout file
+  <kbd>d</kbd>: discard this commit's changes to this file
+  <kbd>o</kbd>: open file
+  <kbd>e</kbd>: edit file
+  <kbd>space</kbd>: toggle file included in patch
+  <kbd>enter</kbd>: enter file to add selected lines to the patch
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Commits Panel
+
+<pre>
+  <kbd>]</kbd>: next tab
+  <kbd>[</kbd>: previous tab
+</pre>
+
+## Commits Panel (Commits Tab)
+
+<pre>
+  <kbd>s</kbd>: squash down
+  <kbd>r</kbd>: reword commit
+  <kbd>R</kbd>: rename commit with editor
+  <kbd>g</kbd>: reset to this commit
+  <kbd>f</kbd>: fixup commit
+  <kbd>F</kbd>: create fixup commit for this commit
+  <kbd>S</kbd>: squash above commits
+  <kbd>d</kbd>: delete commit
+  <kbd>ctrl+j</kbd>: move commit down one
+  <kbd>ctrl+k</kbd>: move commit up one
+  <kbd>e</kbd>: edit commit
+  <kbd>A</kbd>: amend commit with staged changes
+  <kbd>p</kbd>: pick commit (when mid-rebase)
+  <kbd>t</kbd>: revert commit
+  <kbd>c</kbd>: copy commit (cherry-pick)
+  <kbd>ctrl+o</kbd>: copy commit SHA to clipboard
+  <kbd>C</kbd>: copy commit range (cherry-pick)
+  <kbd>v</kbd>: paste commits (cherry-pick)
+  <kbd>enter</kbd>: view commit's files
+  <kbd>space</kbd>: checkout commit
+  <kbd>n</kbd>: create new branch off of commit
+  <kbd>T</kbd>: tag commit
+  <kbd>ctrl+r</kbd>: reset cherry-picked (copied) commits selection
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Commits Panel (Reflog Tab)
+
+<pre>
+  <kbd>space</kbd>: checkout commit
+  <kbd>g</kbd>: view reset options
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Files Panel
+
+<pre>
+  <kbd>c</kbd>: commit changes
+  <kbd>w</kbd>: commit changes without pre-commit hook
+  <kbd>A</kbd>: amend last commit
+  <kbd>C</kbd>: commit changes using git editor
+  <kbd>space</kbd>: toggle staged
+  <kbd>d</kbd>: view 'discard changes' options
+  <kbd>e</kbd>: edit file
+  <kbd>o</kbd>: open file
+  <kbd>i</kbd>: add to .gitignore
+  <kbd>r</kbd>: refresh files
+  <kbd>s</kbd>: stash changes
+  <kbd>S</kbd>: view stash options
+  <kbd>a</kbd>: stage/unstage all
+  <kbd>D</kbd>: view reset options
+  <kbd>enter</kbd>: stage individual hunks/lines
+  <kbd>f</kbd>: fetch
+  <kbd>g</kbd>: view upstream reset options
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Main Panel (Merging)
+
+<pre>
+  <kbd>esc</kbd>: return to files panel
+  <kbd>space</kbd>: pick hunk
+  <kbd>b</kbd>: pick both hunks
+  <kbd>◄</kbd>: select previous conflict
+  <kbd>►</kbd>: select next conflict
+  <kbd>▲</kbd>: select top hunk
+  <kbd>▼</kbd>: select bottom hunk
+  <kbd>z</kbd>: undo
+</pre>
+
+## Main Panel (Normal)
+
+<pre>
+  <kbd>￣</kbd>: scroll down (fn+up)
+  <kbd>￤</kbd>: scroll up (fn+down)
+</pre>
+
+## Main Panel (Patch Building)
+
+<pre>
+  <kbd>esc</kbd>: exit line-by-line mode
+  <kbd>o</kbd>: open file
+  <kbd>▲</kbd>: select previous line
+  <kbd>▼</kbd>: select next line
+  <kbd>◄</kbd>: select previous hunk
+  <kbd>►</kbd>: select next hunk
+  <kbd>space</kbd>: add/remove line(s) to patch
+  <kbd>v</kbd>: toggle drag select
+  <kbd>V</kbd>: toggle drag select
+  <kbd>a</kbd>: toggle select hunk
+</pre>
+
+## Main Panel (Staging)
+
+<pre>
+  <kbd>esc</kbd>: return to files panel
+  <kbd>space</kbd>: toggle line staged / unstaged
+  <kbd>d</kbd>: delete change (git reset)
+  <kbd>tab</kbd>: switch to other panel
+  <kbd>o</kbd>: open file
+  <kbd>▲</kbd>: select previous line
+  <kbd>▼</kbd>: select next line
+  <kbd>◄</kbd>: select previous hunk
+  <kbd>►</kbd>: select next hunk
+  <kbd>e</kbd>: edit file
+  <kbd>o</kbd>: open file
+  <kbd>v</kbd>: toggle drag select
+  <kbd>V</kbd>: toggle drag select
+  <kbd>a</kbd>: toggle select hunk
+  <kbd>c</kbd>: commit changes
+  <kbd>w</kbd>: commit changes without pre-commit hook
+  <kbd>C</kbd>: commit changes using git editor
+</pre>
+
+## Menu Panel
+
+<pre>
+  <kbd>esc</kbd>: close menu
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Stash Panel
+
+<pre>
+  <kbd>space</kbd>: apply
+  <kbd>g</kbd>: pop
+  <kbd>d</kbd>: drop
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Status Panel
+
+<pre>
+  <kbd>e</kbd>: edit config file
+  <kbd>o</kbd>: open config file
+  <kbd>u</kbd>: check for update
+  <kbd>enter</kbd>: switch to a recent repo
+</pre>

docs/keybindings/Keybindings_nl.md

@@ -0,0 +1,284 @@
+# Lazygit Sneltoetsen
+
+## Globaale Sneltoetsen
+
+<pre>
+  <kbd>pgup</kbd>: scroll naar beneden vanaf hooft paneel (fn+up)
+  <kbd>pgdown</kbd>: scroll naar beneden vabaf hooft paneel (fn+down)
+  <kbd>m</kbd>: bekijk merge/rebase opties
+  <kbd>ctrl+p</kbd>: bekijk aangepaste patch opties
+  <kbd>P</kbd>: push
+  <kbd>p</kbd>: pull
+  <kbd>R</kbd>: verversen
+  <kbd>x</kbd>: open menu
+  <kbd>z</kbd>: ongedaan maken (via reflog) (experimenteel)
+  <kbd>ctrl+z</kbd>: redo (via reflog) (experimenteel)
+  <kbd>+</kbd>: volgende schermmode (normaal/half/groot )
+  <kbd>_</kbd>: vorige schermmode
+  <kbd>:</kbd>: voor aangepast commando uit
+  <kbd>|</kbd>: bekijk scoping opties
+  <kbd>∂</kbd>: open diff menu
+</pre>
+
+## Branches Paneel
+
+<pre>
+  <kbd>]</kbd>: volgende tab
+  <kbd>[</kbd>: vorige tab
+</pre>
+
+## Branches Paneel (Branches Tab)
+
+<pre>
+  <kbd>space</kbd>: uitchecken
+  <kbd>o</kbd>: maak een pull-aanvraag
+  <kbd>c</kbd>: uitchecken bij naam
+  <kbd>F</kbd>: forceer checkout
+  <kbd>n</kbd>: nieuwe branch
+  <kbd>d</kbd>: verwijder branch
+  <kbd>r</kbd>: rebase branch
+  <kbd>M</kbd>: merge in met huidige checked out branch
+  <kbd>i</kbd>: laat git-flow opties zien
+  <kbd>f</kbd>: fast-forward deze branch vanaf zijn upstream
+  <kbd>g</kbd>: bekijk reset opties
+  <kbd>R</kbd>: hernoem branch
+  <kbd>ctrl+o</kbd>: copieer branch name naar clipboard
+  <kbd>,</kbd>: vorige pagina
+  <kbd>.</kbd>: volgende pagina
+  <kbd><</kbd>: scroll naar boven
+  <kbd>/</kbd>: start met zoekken
+  <kbd>></kbd>: scroll naar beneden
+</pre>
+
+## Branches Paneel (Remote Branches (in Remotes tab))
+
+<pre>
+  <kbd>esc</kbd>: Ga terug naar remotes lijst
+  <kbd>g</kbd>: bekijk reset opties
+  <kbd>space</kbd>: uitchecken
+  <kbd>n</kbd>: nieuwe branch
+  <kbd>M</kbd>: merge in met huidige checked out branch
+  <kbd>d</kbd>: verwijder branch
+  <kbd>r</kbd>: rebase branch
+  <kbd>u</kbd>: stel in als upstream van uitgecheckte branch
+  <kbd>,</kbd>: vorige pagina
+  <kbd>.</kbd>: volgende pagina
+  <kbd><</kbd>: scroll naar boven
+  <kbd>/</kbd>: start met zoekken
+  <kbd>></kbd>: scroll naar beneden
+</pre>
+
+## Branches Paneel (Remotes Tab)
+
+<pre>
+  <kbd>f</kbd>: fetch remote
+  <kbd>n</kbd>: voeg een nieuwe remote toe
+  <kbd>d</kbd>: verwijder remote
+  <kbd>e</kbd>: wijzig remote
+  <kbd>,</kbd>: vorige pagina
+  <kbd>.</kbd>: volgende pagina
+  <kbd><</kbd>: scroll naar boven
+  <kbd>/</kbd>: start met zoekken
+  <kbd>></kbd>: scroll naar beneden
+</pre>
+
+## Branches Paneel (Tags Tab)
+
+<pre>
+  <kbd>space</kbd>: uitchecken
+  <kbd>d</kbd>: verwijder tag
+  <kbd>P</kbd>: push tag
+  <kbd>n</kbd>: creëer tag
+  <kbd>g</kbd>: bekijk reset opties
+  <kbd>,</kbd>: vorige pagina
+  <kbd>.</kbd>: volgende pagina
+  <kbd><</kbd>: scroll naar boven
+  <kbd>/</kbd>: start met zoekken
+  <kbd>></kbd>: scroll naar beneden
+</pre>
+
+## Commit bestanden Paneel
+
+<pre>
+  <kbd>esc</kbd>: ga terug
+  <kbd>c</kbd>: bestand uitchecken
+  <kbd>d</kbd>: uitsluit deze commit zijn veranderingen aan dit bestand
+  <kbd>o</kbd>: open bestand
+  <kbd>e</kbd>: verander bestand
+  <kbd>space</kbd>: toggle bestand inbegrepen in patch
+  <kbd>enter</kbd>: enter bestand to add selecteered lines to the patch
+  <kbd>,</kbd>: vorige pagina
+  <kbd>.</kbd>: volgende pagina
+  <kbd><</kbd>: scroll naar boven
+  <kbd>/</kbd>: start met zoekken
+  <kbd>></kbd>: scroll naar beneden
+</pre>
+
+## Commits Paneel
+
+<pre>
+  <kbd>]</kbd>: volgende tab
+  <kbd>[</kbd>: vorige tab
+</pre>
+
+## Commits Paneel (Commits Tab)
+
+<pre>
+  <kbd>s</kbd>: squash beneden
+  <kbd>r</kbd>: hernoem commit
+  <kbd>R</kbd>: hernoem commit met editor
+  <kbd>g</kbd>: reset naar deze commit
+  <kbd>f</kbd>: Fixup commit
+  <kbd>F</kbd>: creëer fixup commit voor deze commit
+  <kbd>S</kbd>: squash bovenstaande commits
+  <kbd>d</kbd>: verwijder commit
+  <kbd>ctrl+j</kbd>: verplaats commit 1 naar beneden
+  <kbd>ctrl+k</kbd>: verplaats commit 1 naar boven
+  <kbd>e</kbd>: wijzig commit
+  <kbd>A</kbd>: wijzig commit met staged veranderingen
+  <kbd>p</kbd>: kies commit (wanneer midden in rebase)
+  <kbd>t</kbd>: commit ongedaan maken
+  <kbd>c</kbd>: kopiëer commit (cherry-pick)
+  <kbd>ctrl+o</kbd>: copieer commit SHA naar clipboard
+  <kbd>C</kbd>: kopiëer commit reeks (cherry-pick)
+  <kbd>v</kbd>: plak commits (cherry-pick)
+  <kbd>enter</kbd>: bekijk gecommite bestanden
+  <kbd>space</kbd>: checkout commit
+  <kbd>n</kbd>: create new branch off of commit
+  <kbd>T</kbd>: tag commit
+  <kbd>ctrl+r</kbd>: reset cherry-picked (gecopieerde) commits selectie
+  <kbd>,</kbd>: vorige pagina
+  <kbd>.</kbd>: volgende pagina
+  <kbd><</kbd>: scroll naar boven
+  <kbd>/</kbd>: start met zoekken
+  <kbd>></kbd>: scroll naar beneden
+</pre>
+
+## Commits Paneel (Reflog Tab)
+
+<pre>
+  <kbd>space</kbd>: checkout commit
+  <kbd>g</kbd>: bekijk reset opties
+  <kbd>,</kbd>: vorige pagina
+  <kbd>.</kbd>: volgende pagina
+  <kbd><</kbd>: scroll naar boven
+  <kbd>/</kbd>: start met zoekken
+  <kbd>></kbd>: scroll naar beneden
+</pre>
+
+## Bestanden Paneel
+
+<pre>
+  <kbd>c</kbd>: Commit veranderingen
+  <kbd>w</kbd>: commit veranderingen zonder pre-commit hook
+  <kbd>A</kbd>: wijzig laatste commit
+  <kbd>C</kbd>: commit veranderingen met de git editor
+  <kbd>space</kbd>: toggle staged
+  <kbd>d</kbd>: bekijk 'veranderingen ongedaan maken' opties
+  <kbd>e</kbd>: verander bestand
+  <kbd>o</kbd>: open bestand
+  <kbd>i</kbd>: voeg toe aan .gitignore
+  <kbd>r</kbd>: refresh bestanden
+  <kbd>s</kbd>: stash-bestanden
+  <kbd>S</kbd>: bekijk stash opties
+  <kbd>a</kbd>: toggle staged alle
+  <kbd>D</kbd>: bekijk reset opties
+  <kbd>enter</kbd>: stage individuele hunks/lijnen
+  <kbd>f</kbd>: fetch
+  <kbd>g</kbd>: bekijk upstream reset opties
+  <kbd>,</kbd>: vorige pagina
+  <kbd>.</kbd>: volgende pagina
+  <kbd><</kbd>: scroll naar boven
+  <kbd>/</kbd>: start met zoekken
+  <kbd>></kbd>: scroll naar beneden
+</pre>
+
+## Hooft Paneel (Merggen)
+
+<pre>
+  <kbd>esc</kbd>: ga terug naar het bestanden paneel
+  <kbd>space</kbd>: kies hunk
+  <kbd>b</kbd>: kies bijde hunks
+  <kbd>◄</kbd>: selecteer voorgaand conflict
+  <kbd>►</kbd>: selecteer volgende conflict
+  <kbd>▲</kbd>: selecteer bovenste hunk
+  <kbd>▼</kbd>: selecteer onderste hunk
+  <kbd>z</kbd>: ongedaan maken
+</pre>
+
+## Hooft Paneel (Normaal)
+
+<pre>
+  <kbd>￣</kbd>: scroll omlaag (fn+up)
+  <kbd>￤</kbd>: scroll omhoog (fn+down)
+</pre>
+
+## Hooft Paneel (Patch Bouwen)
+
+<pre>
+  <kbd>esc</kbd>: sluit lijn-bij-lijn mode
+  <kbd>o</kbd>: open bestand
+  <kbd>▲</kbd>: selecteer de vorige lijn
+  <kbd>▼</kbd>: selecteer de volgende lijn
+  <kbd>◄</kbd>: selecteer de vorige hunk
+  <kbd>►</kbd>: selecteer de volgende hunk
+  <kbd>space</kbd>: voeg toe/verwijder lijn(en) in patch
+  <kbd>v</kbd>: toggle drag  selecteer
+  <kbd>V</kbd>: toggle drag  selecteer
+  <kbd>a</kbd>: toggle  selecteer hunk
+</pre>
+
+## Hooft Paneel (Staging)
+
+<pre>
+  <kbd>esc</kbd>: ga terug naar het bestanden paneel
+  <kbd>space</kbd>: toggle lijnen staged / unstaged
+  <kbd>d</kbd>: verwijdert change (git reset)
+  <kbd>tab</kbd>: ga naar een ander paneel
+  <kbd>o</kbd>: open bestand
+  <kbd>▲</kbd>: selecteer de vorige lijn
+  <kbd>▼</kbd>: selecteer de volgende lijn
+  <kbd>◄</kbd>: selecteer de vorige hunk
+  <kbd>►</kbd>: selecteer de volgende hunk
+  <kbd>e</kbd>: verander bestand
+  <kbd>o</kbd>: open bestand
+  <kbd>v</kbd>: toggle drag  selecteer
+  <kbd>V</kbd>: toggle drag  selecteer
+  <kbd>a</kbd>: toggle  selecteer hunk
+  <kbd>c</kbd>: Commit veranderingen
+  <kbd>w</kbd>: commit veranderingen zonder pre-commit hook
+  <kbd>C</kbd>: commit veranderingen met de git editor
+</pre>
+
+## Menu Paneel
+
+<pre>
+  <kbd>esc</kbd>: sluit menu
+  <kbd>,</kbd>: vorige pagina
+  <kbd>.</kbd>: volgende pagina
+  <kbd><</kbd>: scroll naar boven
+  <kbd>/</kbd>: start met zoekken
+  <kbd>></kbd>: scroll naar beneden
+</pre>
+
+## Stash Paneel
+
+<pre>
+  <kbd>space</kbd>: toepassen
+  <kbd>g</kbd>: pop
+  <kbd>d</kbd>: laten vallen
+  <kbd>,</kbd>: vorige pagina
+  <kbd>.</kbd>: volgende pagina
+  <kbd><</kbd>: scroll naar boven
+  <kbd>/</kbd>: start met zoekken
+  <kbd>></kbd>: scroll naar beneden
+</pre>
+
+## Status Paneel
+
+<pre>
+  <kbd>e</kbd>: verander config bestand
+  <kbd>o</kbd>: open config bestand
+  <kbd>u</kbd>: check voor updates
+  <kbd>enter</kbd>: wissel naar een recente repo
+</pre>

docs/keybindings/Keybindings_pl.md

@@ -0,0 +1,284 @@
+# Lazygit Keybindings
+
+## Globalne
+
+<pre>
+  <kbd>pgup</kbd>: scroll up main panel (fn+up)
+  <kbd>pgdown</kbd>: scroll down main panel (fn+down)
+  <kbd>m</kbd>: view merge/rebase options
+  <kbd>ctrl+p</kbd>: view custom patch options
+  <kbd>P</kbd>: push
+  <kbd>p</kbd>: pull
+  <kbd>R</kbd>: odśwież
+  <kbd>x</kbd>: open menu
+  <kbd>z</kbd>: undo (via reflog) (experimental)
+  <kbd>ctrl+z</kbd>: redo (via reflog) (experimental)
+  <kbd>+</kbd>: next screen mode (normal/half/fullscreen)
+  <kbd>_</kbd>: prev screen mode
+  <kbd>:</kbd>: execute custom command
+  <kbd>|</kbd>: view scoping options
+  <kbd>∂</kbd>: open diff menu
+</pre>
+
+## Gałęzie Panel
+
+<pre>
+  <kbd>]</kbd>: next tab
+  <kbd>[</kbd>: previous tab
+</pre>
+
+## Gałęzie Panel (Branches Tab)
+
+<pre>
+  <kbd>space</kbd>: przełącz
+  <kbd>o</kbd>: utwórz żądanie wyciągnięcia
+  <kbd>c</kbd>: przełącz używając nazwy
+  <kbd>F</kbd>: wymuś przełączenie
+  <kbd>n</kbd>: nowa gałąź
+  <kbd>d</kbd>: usuń gałąź
+  <kbd>r</kbd>: rebase branch
+  <kbd>M</kbd>: scal do obecnej gałęzi
+  <kbd>i</kbd>: show git-flow options
+  <kbd>f</kbd>: fast-forward this branch from its upstream
+  <kbd>g</kbd>: view reset options
+  <kbd>R</kbd>: rename branch
+  <kbd>ctrl+o</kbd>: copy branch name to clipboard
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Gałęzie Panel (Remote Branches (in Remotes tab))
+
+<pre>
+  <kbd>esc</kbd>: return to remotes list
+  <kbd>g</kbd>: view reset options
+  <kbd>space</kbd>: przełącz
+  <kbd>n</kbd>: nowa gałąź
+  <kbd>M</kbd>: scal do obecnej gałęzi
+  <kbd>d</kbd>: usuń gałąź
+  <kbd>r</kbd>: rebase branch
+  <kbd>u</kbd>: set as upstream of checked-out branch
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Gałęzie Panel (Remotes Tab)
+
+<pre>
+  <kbd>f</kbd>: fetch remote
+  <kbd>n</kbd>: add new remote
+  <kbd>d</kbd>: remove remote
+  <kbd>e</kbd>: edit remote
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Gałęzie Panel (Tags Tab)
+
+<pre>
+  <kbd>space</kbd>: przełącz
+  <kbd>d</kbd>: delete tag
+  <kbd>P</kbd>: push tag
+  <kbd>n</kbd>: create tag
+  <kbd>g</kbd>: view reset options
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Commit files Panel
+
+<pre>
+  <kbd>esc</kbd>: go back
+  <kbd>c</kbd>: checkout file
+  <kbd>d</kbd>: discard this commit's changes to this file
+  <kbd>o</kbd>: otwórz plik
+  <kbd>e</kbd>: edytuj plik
+  <kbd>space</kbd>: toggle file included in patch
+  <kbd>enter</kbd>: enter file to add selected lines to the patch
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Commity Panel
+
+<pre>
+  <kbd>]</kbd>: next tab
+  <kbd>[</kbd>: previous tab
+</pre>
+
+## Commity Panel (Commits Tab)
+
+<pre>
+  <kbd>s</kbd>: ściśnij w dół
+  <kbd>r</kbd>: przemianuj commit
+  <kbd>R</kbd>: przemianuj commit w edytorze
+  <kbd>g</kbd>: zresetuj do tego commita
+  <kbd>f</kbd>: napraw commit
+  <kbd>F</kbd>: create fixup commit for this commit
+  <kbd>S</kbd>: squash above commits
+  <kbd>d</kbd>: delete commit
+  <kbd>ctrl+j</kbd>: move commit down one
+  <kbd>ctrl+k</kbd>: move commit up one
+  <kbd>e</kbd>: edit commit
+  <kbd>A</kbd>: amend commit with staged changes
+  <kbd>p</kbd>: pick commit (when mid-rebase)
+  <kbd>t</kbd>: revert commit
+  <kbd>c</kbd>: copy commit (cherry-pick)
+  <kbd>ctrl+o</kbd>: copy commit SHA to clipboard
+  <kbd>C</kbd>: copy commit range (cherry-pick)
+  <kbd>v</kbd>: paste commits (cherry-pick)
+  <kbd>enter</kbd>: view commit's files
+  <kbd>space</kbd>: checkout commit
+  <kbd>n</kbd>: create new branch off of commit
+  <kbd>T</kbd>: tag commit
+  <kbd>ctrl+r</kbd>: reset cherry-picked (copied) commits selection
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Commity Panel (Reflog Tab)
+
+<pre>
+  <kbd>space</kbd>: checkout commit
+  <kbd>g</kbd>: view reset options
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Pliki Panel
+
+<pre>
+  <kbd>c</kbd>: commituj zmiany
+  <kbd>w</kbd>: commit changes without pre-commit hook
+  <kbd>A</kbd>: zmień ostatnie zatwierdzenie
+  <kbd>C</kbd>: commituj zmiany używając edytora z gita
+  <kbd>space</kbd>: przełącz zatwierdzenie
+  <kbd>d</kbd>: view 'discard changes' options
+  <kbd>e</kbd>: edytuj plik
+  <kbd>o</kbd>: otwórz plik
+  <kbd>i</kbd>: dodaj do .gitignore
+  <kbd>r</kbd>: odśwież pliki
+  <kbd>s</kbd>: przechowaj pliki
+  <kbd>S</kbd>: view stash options
+  <kbd>a</kbd>: przełącz wszystkie zatwierdzenia
+  <kbd>D</kbd>: view reset options
+  <kbd>enter</kbd>: zatwierdź pojedyncze linie
+  <kbd>f</kbd>: fetch
+  <kbd>g</kbd>: view upstream reset options
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Main Panel (Merging)
+
+<pre>
+  <kbd>esc</kbd>: wróć do panelu plików
+  <kbd>space</kbd>: pick hunk
+  <kbd>b</kbd>: pick both hunks
+  <kbd>◄</kbd>: select previous conflict
+  <kbd>►</kbd>: select next conflict
+  <kbd>▲</kbd>: select top hunk
+  <kbd>▼</kbd>: select bottom hunk
+  <kbd>z</kbd>: cofnij
+</pre>
+
+## Main Panel (Normal)
+
+<pre>
+  <kbd>￣</kbd>: scroll down (fn+up)
+  <kbd>￤</kbd>: scroll up (fn+down)
+</pre>
+
+## Main Panel (Patch Building)
+
+<pre>
+  <kbd>esc</kbd>: exit line-by-line mode
+  <kbd>o</kbd>: otwórz plik
+  <kbd>▲</kbd>: select previous line
+  <kbd>▼</kbd>: select next line
+  <kbd>◄</kbd>: select previous hunk
+  <kbd>►</kbd>: select next hunk
+  <kbd>space</kbd>: add/remove line(s) to patch
+  <kbd>v</kbd>: toggle drag select
+  <kbd>V</kbd>: toggle drag select
+  <kbd>a</kbd>: toggle select hunk
+</pre>
+
+## Main Panel (Zatwierdzanie)
+
+<pre>
+  <kbd>esc</kbd>: wróć do panelu plików
+  <kbd>space</kbd>: toggle line staged / unstaged
+  <kbd>d</kbd>: delete change (git reset)
+  <kbd>tab</kbd>: switch to other panel
+  <kbd>o</kbd>: otwórz plik
+  <kbd>▲</kbd>: select previous line
+  <kbd>▼</kbd>: select next line
+  <kbd>◄</kbd>: select previous hunk
+  <kbd>►</kbd>: select next hunk
+  <kbd>e</kbd>: edytuj plik
+  <kbd>o</kbd>: otwórz plik
+  <kbd>v</kbd>: toggle drag select
+  <kbd>V</kbd>: toggle drag select
+  <kbd>a</kbd>: toggle select hunk
+  <kbd>c</kbd>: commituj zmiany
+  <kbd>w</kbd>: commit changes without pre-commit hook
+  <kbd>C</kbd>: commituj zmiany używając edytora z gita
+</pre>
+
+## Menu Panel
+
+<pre>
+  <kbd>esc</kbd>: close menu
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Schowek Panel
+
+<pre>
+  <kbd>space</kbd>: zastosuj
+  <kbd>g</kbd>: wyciągnij
+  <kbd>d</kbd>: porzuć
+  <kbd>,</kbd>: previous page
+  <kbd>.</kbd>: next page
+  <kbd><</kbd>: scroll to top
+  <kbd>/</kbd>: start search
+  <kbd>></kbd>: scroll to bottom
+</pre>
+
+## Status Panel
+
+<pre>
+  <kbd>e</kbd>: edytuj plik konfiguracyjny
+  <kbd>o</kbd>: otwórz plik konfiguracyjny
+  <kbd>u</kbd>: sprawdź aktualizacje
+  <kbd>enter</kbd>: switch to a recent repo
+</pre>

files_panel.go

@@ -1,329 +0,0 @@
-package main
-
-import (
-
-	// "io"
-	// "io/ioutil"
-
-	// "strings"
-
-	"errors"
-	"strings"
-
-	"github.com/fatih/color"
-	"github.com/jesseduffield/gocui"
-)
-
-var (
-	// ErrNoFiles : when there are no modified files in the repo
-	ErrNoFiles = errors.New("No changed files")
-)
-
-func stagedFiles(files []GitFile) []GitFile {
-	result := make([]GitFile, 0)
-	for _, file := range files {
-		if file.HasStagedChanges {
-			result = append(result, file)
-		}
-	}
-	return result
-}
-
-func stageSelectedFile(g *gocui.Gui) error {
-	file, err := getSelectedFile(g)
-	if err != nil {
-		return err
-	}
-	return stageFile(file.Name)
-}
-
-func handleFilePress(g *gocui.Gui, v *gocui.View) error {
-	file, err := getSelectedFile(g)
-	if err != nil {
-		if err == ErrNoFiles {
-			return nil
-		}
-		return err
-	}
-
-	if file.HasMergeConflicts {
-		return handleSwitchToMerge(g, v)
-	}
-
-	if file.HasUnstagedChanges {
-		stageFile(file.Name)
-	} else {
-		unStageFile(file.Name, file.Tracked)
-	}
-
-	if err := refreshFiles(g); err != nil {
-		return err
-	}
-
-	return handleFileSelect(g, v)
-}
-
-func getSelectedFile(g *gocui.Gui) (GitFile, error) {
-	if len(state.GitFiles) == 0 {
-		return GitFile{}, ErrNoFiles
-	}
-	filesView, err := g.View("files")
-	if err != nil {
-		panic(err)
-	}
-	lineNumber := getItemPosition(filesView)
-	return state.GitFiles[lineNumber], nil
-}
-
-func handleFileRemove(g *gocui.Gui, v *gocui.View) error {
-	file, err := getSelectedFile(g)
-	if err != nil {
-		if err == ErrNoFiles {
-			return nil
-		}
-		return err
-	}
-	var deleteVerb string
-	if file.Tracked {
-		deleteVerb = "checkout"
-	} else {
-		deleteVerb = "delete"
-	}
-	return createConfirmationPanel(g, v, strings.Title(deleteVerb)+" file", "Are you sure you want to "+deleteVerb+" "+file.Name+" (you will lose your changes)?", func(g *gocui.Gui, v *gocui.View) error {
-		if err := removeFile(file); err != nil {
-			panic(err)
-		}
-		return refreshFiles(g)
-	}, nil)
-}
-
-func handleIgnoreFile(g *gocui.Gui, v *gocui.View) error {
-	file, err := getSelectedFile(g)
-	if err != nil {
-		return createErrorPanel(g, err.Error())
-	}
-	if file.Tracked {
-		return createErrorPanel(g, "Cannot ignore tracked files")
-	}
-	gitIgnore(file.Name)
-	return refreshFiles(g)
-}
-
-func renderfilesOptions(g *gocui.Gui, gitFile *GitFile) error {
-	optionsMap := map[string]string{
-		"← → ↑ ↓": "navigate",
-		"S":       "stash files",
-		"c":       "commit changes",
-		"o":       "open",
-		"s":       "sublime",
-		"v":       "vscode",
-		"i":       "ignore",
-		"d":       "delete",
-		"space":   "toggle staged",
-		"R":       "refresh",
-	}
-	if state.HasMergeConflicts {
-		optionsMap["a"] = "abort merge"
-		optionsMap["m"] = "resolve merge conflicts"
-	}
-	if gitFile == nil {
-		return renderOptionsMap(g, optionsMap)
-	}
-	if gitFile.Tracked {
-		optionsMap["d"] = "checkout"
-	}
-	return renderOptionsMap(g, optionsMap)
-}
-
-func handleFileSelect(g *gocui.Gui, v *gocui.View) error {
-	gitFile, err := getSelectedFile(g)
-	if err != nil {
-		if err != ErrNoFiles {
-			return err
-		}
-		renderString(g, "main", "No changed files")
-		return renderfilesOptions(g, nil)
-	}
-	renderfilesOptions(g, &gitFile)
-	var content string
-	if gitFile.HasMergeConflicts {
-		return refreshMergePanel(g)
-	}
-
-	content = getDiff(gitFile)
-	return renderString(g, "main", content)
-}
-
-func handleCommitPress(g *gocui.Gui, filesView *gocui.View) error {
-	if len(stagedFiles(state.GitFiles)) == 0 && !state.HasMergeConflicts {
-		return createErrorPanel(g, "There are no staged files to commit")
-	}
-	createPromptPanel(g, filesView, "Commit message", func(g *gocui.Gui, v *gocui.View) error {
-		message := trimmedContent(v)
-		if message == "" {
-			return createErrorPanel(g, "You cannot commit without a commit message")
-		}
-		if output, err := gitCommit(message); err != nil {
-			return createErrorPanel(g, output)
-		}
-		refreshFiles(g)
-		return refreshCommits(g)
-	})
-	return nil
-}
-
-func genericFileOpen(g *gocui.Gui, v *gocui.View, open func(string) (string, error)) error {
-	file, err := getSelectedFile(g)
-	if err != nil {
-		if err != ErrNoFiles {
-			return err
-		}
-		return nil
-	}
-	if output, err := open(file.Name); err != nil {
-		return createErrorPanel(g, output)
-	}
-	return nil
-}
-
-func handleFileOpen(g *gocui.Gui, v *gocui.View) error {
-	return genericFileOpen(g, v, openFile)
-}
-func handleSublimeFileOpen(g *gocui.Gui, v *gocui.View) error {
-	return genericFileOpen(g, v, sublimeOpenFile)
-}
-func handleVsCodeFileOpen(g *gocui.Gui, v *gocui.View) error {
-	return genericFileOpen(g, v, vsCodeOpenFile)
-}
-
-func handleRefreshFiles(g *gocui.Gui, v *gocui.View) error {
-	return refreshFiles(g)
-}
-
-func refreshStateGitFiles() {
-	// get files to stage
-	gitFiles := getGitStatusFiles()
-	state.GitFiles = mergeGitStatusFiles(state.GitFiles, gitFiles)
-	updateHasMergeConflictStatus()
-}
-
-func updateHasMergeConflictStatus() error {
-	merging, err := isInMergeState()
-	if err != nil {
-		return err
-	}
-	state.HasMergeConflicts = merging
-	return nil
-}
-
-func renderGitFile(gitFile GitFile, filesView *gocui.View) {
-	// potentially inefficient to be instantiating these color
-	// objects with each render
-	red := color.New(color.FgRed)
-	green := color.New(color.FgGreen)
-	if !gitFile.Tracked && !gitFile.HasStagedChanges {
-		red.Fprintln(filesView, gitFile.DisplayString)
-		return
-	}
-	green.Fprint(filesView, gitFile.DisplayString[0:1])
-	red.Fprint(filesView, gitFile.DisplayString[1:3])
-	if gitFile.HasUnstagedChanges {
-		red.Fprintln(filesView, gitFile.Name)
-	} else {
-		green.Fprintln(filesView, gitFile.Name)
-	}
-}
-
-func catSelectedFile(g *gocui.Gui) (string, error) {
-	item, err := getSelectedFile(g)
-	if err != nil {
-		if err != ErrNoFiles {
-			return "", err
-		}
-		return "", renderString(g, "main", "No file to display")
-	}
-	cat, err := catFile(item.Name)
-	if err != nil {
-		panic(err)
-	}
-	return cat, nil
-}
-
-func refreshFiles(g *gocui.Gui) error {
-	filesView, err := g.View("files")
-	if err != nil {
-		return err
-	}
-	refreshStateGitFiles()
-	filesView.Clear()
-	for _, gitFile := range state.GitFiles {
-		renderGitFile(gitFile, filesView)
-	}
-	correctCursor(filesView)
-	if filesView == g.CurrentView() {
-		handleFileSelect(g, filesView)
-	}
-	return nil
-}
-
-func pullFiles(g *gocui.Gui, v *gocui.View) error {
-	devLog("pulling...")
-	createMessagePanel(g, v, "", "Pulling...")
-	go func() {
-		if output, err := gitPull(); err != nil {
-			createErrorPanel(g, output)
-		} else {
-			closeConfirmationPrompt(g)
-			refreshCommits(g)
-			refreshStatus(g)
-			devLog("pulled.")
-		}
-		refreshFiles(g)
-	}()
-	return nil
-}
-
-func pushFiles(g *gocui.Gui, v *gocui.View) error {
-	devLog("pushing...")
-	createMessagePanel(g, v, "", "Pushing...")
-	go func() {
-		if output, err := gitPush(); err != nil {
-			createErrorPanel(g, output)
-		} else {
-			closeConfirmationPrompt(g)
-			refreshCommits(g)
-			refreshStatus(g)
-			devLog("pushed.")
-		}
-	}()
-	return nil
-}
-
-func handleSwitchToMerge(g *gocui.Gui, v *gocui.View) error {
-	mergeView, err := g.View("main")
-	if err != nil {
-		return err
-	}
-	file, err := getSelectedFile(g)
-	if err != nil {
-		if err != ErrNoFiles {
-			return err
-		}
-		return nil
-	}
-	if !file.HasMergeConflicts {
-		return createErrorPanel(g, "This file has no merge conflicts")
-	}
-	switchFocus(g, v, mergeView)
-	return refreshMergePanel(g)
-}
-
-func handleAbortMerge(g *gocui.Gui, v *gocui.View) error {
-	output, err := gitAbortMerge()
-	if err != nil {
-		return createErrorPanel(g, output)
-	}
-	createMessagePanel(g, v, "", "Merge aborted")
-	refreshStatus(g)
-	return refreshFiles(g)
-}

gitcommands.go

@@ -1,586 +0,0 @@
-package main
-
-import (
-
-	// "log"
-	"errors"
-	"fmt"
-	"os"
-	"os/exec"
-	"regexp"
-	"runtime"
-	"strings"
-	"time"
-
-	"github.com/fatih/color"
-)
-
-var (
-	// ErrNoCheckedOutBranch : When we have no checked out branch
-	ErrNoCheckedOutBranch = errors.New("No currently checked out branch")
-)
-
-// GitFile : A staged/unstaged file
-// TODO: decide whether to give all of these the Git prefix
-type GitFile struct {
-	Name               string
-	HasStagedChanges   bool
-	HasUnstagedChanges bool
-	Tracked            bool
-	Deleted            bool
-	HasMergeConflicts  bool
-	DisplayString      string
-}
-
-// Branch : A git branch
-type Branch struct {
-	Name          string
-	Type          string
-	BaseBranch    string
-	DisplayString string
-}
-
-// Commit : A git commit
-type Commit struct {
-	Sha           string
-	Name          string
-	Pushed        bool
-	DisplayString string
-}
-
-// StashEntry : A git stash entry
-type StashEntry struct {
-	Index         int
-	Name          string
-	DisplayString string
-}
-
-// Map (from https://gobyexample.com/collection-functions)
-func Map(vs []string, f func(string) string) []string {
-	vsm := make([]string, len(vs))
-	for i, v := range vs {
-		vsm[i] = f(v)
-	}
-	return vsm
-}
-
-func includesString(list []string, a string) bool {
-	for _, b := range list {
-		if b == a {
-			return true
-		}
-	}
-	return false
-}
-
-// not sure how to genericise this because []interface{} doesn't accept e.g.
-// []int arguments
-func includesInt(list []int, a int) bool {
-	for _, b := range list {
-		if b == a {
-			return true
-		}
-	}
-	return false
-}
-
-func mergeGitStatusFiles(oldGitFiles, newGitFiles []GitFile) []GitFile {
-	if len(oldGitFiles) == 0 {
-		return newGitFiles
-	}
-
-	appendedIndexes := make([]int, 0)
-
-	// retain position of files we already could see
-	result := make([]GitFile, 0)
-	for _, oldGitFile := range oldGitFiles {
-		for newIndex, newGitFile := range newGitFiles {
-			if oldGitFile.Name == newGitFile.Name {
-				result = append(result, newGitFile)
-				appendedIndexes = append(appendedIndexes, newIndex)
-				break
-			}
-		}
-	}
-
-	// append any new files to the end
-	for index, newGitFile := range newGitFiles {
-		if !includesInt(appendedIndexes, index) {
-			result = append(result, newGitFile)
-		}
-	}
-
-	return result
-}
-
-func platformShell() (string, string) {
-	if runtime.GOOS == "windows" {
-		return "cmd", "/c"
-	}
-	return "bash", "-c"
-}
-
-func runDirectCommand(command string) (string, error) {
-	timeStart := time.Now()
-	commandLog(command)
-
-	shell, shellArg := platformShell()
-	cmdOut, err := exec.
-		Command(shell, shellArg, command).
-		CombinedOutput()
-	devLog("run direct command time for command: ", command, time.Now().Sub(timeStart))
-	return sanitisedCommandOutput(cmdOut, err)
-}
-
-func branchStringParts(branchString string) (string, string) {
-	// expect string to be something like '4w    master`
-	splitBranchName := strings.Split(branchString, "\t")
-	// if we have no \t then we have no recency, so just output that as blank
-	if len(splitBranchName) == 1 {
-		return "", branchString
-	}
-	return splitBranchName[0], splitBranchName[1]
-}
-
-// branchPropertiesFromName : returns branch type, base, and color
-func branchPropertiesFromName(name string) (string, string, color.Attribute) {
-	if strings.Contains(name, "feature/") {
-		return "feature", "develop", color.FgGreen
-	} else if strings.Contains(name, "bugfix/") {
-		return "bugfix", "develop", color.FgYellow
-	} else if strings.Contains(name, "hotfix/") {
-		return "hotfix", "master", color.FgRed
-	}
-	return "other", name, color.FgWhite
-}
-
-func coloredString(str string, colour *color.Color) string {
-	return colour.SprintFunc()(fmt.Sprint(str))
-}
-
-func withPadding(str string, padding int) string {
-	if padding-len(str) < 0 {
-		return str
-	}
-	return str + strings.Repeat(" ", padding-len(str))
-}
-
-// TODO: DRY up this function and getGitBranches
-func getGitStashEntries() []StashEntry {
-	stashEntries := make([]StashEntry, 0)
-	rawString, _ := runDirectCommand("git stash list --pretty='%gs'")
-	for i, line := range splitLines(rawString) {
-		stashEntries = append(stashEntries, stashEntryFromLine(line, i))
-	}
-	return stashEntries
-}
-
-func stashEntryFromLine(line string, index int) StashEntry {
-	return StashEntry{
-		Name:          line,
-		Index:         index,
-		DisplayString: line,
-	}
-}
-
-func getStashEntryDiff(index int) (string, error) {
-	return runCommand("git stash show -p --color stash@{" + fmt.Sprint(index) + "}")
-}
-
-func includes(array []string, str string) bool {
-	for _, arrayStr := range array {
-		if arrayStr == str {
-			return true
-		}
-	}
-	return false
-}
-
-func getGitStatusFiles() []GitFile {
-	statusOutput, _ := getGitStatus()
-	statusStrings := splitLines(statusOutput)
-	gitFiles := make([]GitFile, 0)
-
-	for _, statusString := range statusStrings {
-		change := statusString[0:2]
-		stagedChange := change[0:1]
-		unstagedChange := statusString[1:2]
-		filename := statusString[3:]
-		tracked := !includes([]string{"??", "A "}, change)
-		gitFile := GitFile{
-			Name:               filename,
-			DisplayString:      statusString,
-			HasStagedChanges:   !includes([]string{" ", "U", "?"}, stagedChange),
-			HasUnstagedChanges: unstagedChange != " ",
-			Tracked:            tracked,
-			Deleted:            unstagedChange == "D" || stagedChange == "D",
-			HasMergeConflicts:  change == "UU",
-		}
-		devLog("tracked", gitFile.Tracked)
-		devLog("hasUnstagedChanges", gitFile.HasUnstagedChanges)
-		devLog("HasStagedChanges", gitFile.HasStagedChanges)
-		devLog("DisplayString", gitFile.DisplayString)
-		gitFiles = append(gitFiles, gitFile)
-	}
-	devLog(gitFiles)
-	return gitFiles
-}
-
-func gitStashDo(index int, method string) (string, error) {
-	return runCommand("git stash " + method + " stash@{" + fmt.Sprint(index) + "}")
-}
-
-func gitStashSave(message string) (string, error) {
-	output, err := runCommand("git stash save \"" + message + "\"")
-	if err != nil {
-		return output, err
-	}
-	// if there are no local changes to save, the exit code is 0, but we want
-	// to raise an error
-	if output == "No local changes to save\n" {
-		return output, errors.New(output)
-	}
-	return output, nil
-}
-
-func gitCheckout(branch string, force bool) (string, error) {
-	forceArg := ""
-	if force {
-		forceArg = "--force "
-	}
-	return runCommand("git checkout " + forceArg + branch)
-}
-
-func sanitisedCommandOutput(output []byte, err error) (string, error) {
-	outputString := string(output)
-	if outputString == "" && err != nil {
-		return err.Error(), err
-	}
-	return outputString, err
-}
-
-func runCommand(command string) (string, error) {
-	commandStartTime := time.Now()
-	commandLog(command)
-	splitCmd := strings.Split(command, " ")
-	cmdOut, err := exec.Command(splitCmd[0], splitCmd[1:]...).CombinedOutput()
-	devLog("run command time: ", time.Now().Sub(commandStartTime))
-	return sanitisedCommandOutput(cmdOut, err)
-}
-
-func openFile(filename string) (string, error) {
-	return runCommand("open " + filename)
-}
-
-func vsCodeOpenFile(filename string) (string, error) {
-	return runCommand("code -r " + filename)
-}
-
-func sublimeOpenFile(filename string) (string, error) {
-	return runCommand("subl " + filename)
-}
-
-func getBranchGraph(branch string, baseBranch string) (string, error) {
-	return runCommand("git log --graph --color --abbrev-commit --decorate --date=relative --pretty=medium -100 " + branch)
-
-	// Leaving this guy commented out in case there's backlash from the design
-	// change and I want to make this configurable
-	// return runCommand("git log -p -30 --color --no-merges " + branch)
-}
-
-func verifyInGitRepo() {
-	if output, err := runCommand("git status"); err != nil {
-		fmt.Println(output)
-		os.Exit(1)
-	}
-}
-
-func getCommits() []Commit {
-	pushables := gitCommitsToPush()
-	log := getLog()
-	commits := make([]Commit, 0)
-	// now we can split it up and turn it into commits
-	lines := splitLines(log)
-	for _, line := range lines {
-		splitLine := strings.Split(line, " ")
-		sha := splitLine[0]
-		pushed := includesString(pushables, sha)
-		commits = append(commits, Commit{
-			Sha:           sha,
-			Name:          strings.Join(splitLine[1:], " "),
-			Pushed:        pushed,
-			DisplayString: strings.Join(splitLine, " "),
-		})
-	}
-	return commits
-}
-
-func getLog() string {
-	// currently limiting to 30 for performance reasons
-	// TODO: add lazyloading when you scroll down
-	result, err := runDirectCommand("git log --oneline -30")
-	if err != nil {
-		// assume if there is an error there are no commits yet for this branch
-		return ""
-	}
-	return result
-}
-
-func gitIgnore(filename string) {
-	if _, err := runDirectCommand("echo '" + filename + "' >> .gitignore"); err != nil {
-		panic(err)
-	}
-}
-
-func gitShow(sha string) string {
-	result, err := runDirectCommand("git show --color " + sha)
-	if err != nil {
-		panic(err)
-	}
-	return result
-}
-
-func getDiff(file GitFile) string {
-	cachedArg := ""
-	if file.HasStagedChanges && !file.HasUnstagedChanges {
-		cachedArg = "--cached "
-	}
-	deletedArg := ""
-	if file.Deleted {
-		deletedArg = "-- "
-	}
-	trackedArg := ""
-	if !file.Tracked && !file.HasStagedChanges {
-		trackedArg = "--no-index /dev/null "
-	}
-	command := "git diff --color " + cachedArg + deletedArg + trackedArg + file.Name
-	// for now we assume an error means the file was deleted
-	s, _ := runCommand(command)
-	return s
-}
-
-func catFile(file string) (string, error) {
-	return runDirectCommand("cat " + file)
-}
-
-func stageFile(file string) error {
-	_, err := runCommand("git add " + file)
-	return err
-}
-
-func unStageFile(file string, tracked bool) error {
-	var command string
-	if tracked {
-		command = "git reset HEAD "
-	} else {
-		command = "git rm --cached "
-	}
-	devLog(command)
-	_, err := runCommand(command + file)
-	return err
-}
-
-func getGitStatus() (string, error) {
-	return runCommand("git status --untracked-files=all --short")
-}
-
-func isInMergeState() (bool, error) {
-	output, err := runCommand("git status --untracked-files=all")
-	if err != nil {
-		return false, err
-	}
-	return strings.Contains(output, "conclude merge") || strings.Contains(output, "unmerged paths"), nil
-}
-
-func removeFile(file GitFile) error {
-	// if the file isn't tracked, we assume you want to delete it
-	if !file.Tracked {
-		_, err := runCommand("rm -rf ./" + file.Name)
-		return err
-	}
-	// if the file is tracked, we assume you want to just check it out
-	_, err := runCommand("git checkout " + file.Name)
-	return err
-}
-
-func gitCommit(message string) (string, error) {
-	return runDirectCommand("git commit -m \"" + message + "\"")
-}
-
-func gitPull() (string, error) {
-	return runDirectCommand("git pull --no-edit")
-}
-
-func gitPush() (string, error) {
-	branchName := gitCurrentBranchName()
-	if branchName == "" {
-		return "", ErrNoCheckedOutBranch
-	}
-	return runDirectCommand("git push -u origin " + branchName)
-}
-
-func gitSquashPreviousTwoCommits(message string) (string, error) {
-	return runDirectCommand("git reset --soft HEAD^ && git commit --amend -m \"" + message + "\"")
-}
-
-func gitRenameCommit(message string) (string, error) {
-	return runDirectCommand("git commit --allow-empty --amend -m \"" + message + "\"")
-}
-
-func gitFetch() (string, error) {
-	return runDirectCommand("git fetch")
-}
-
-func gitResetToCommit(sha string) (string, error) {
-	return runDirectCommand("git reset " + sha)
-}
-
-func gitNewBranch(name string) (string, error) {
-	return runDirectCommand("git checkout -b " + name)
-}
-
-func gitListStash() (string, error) {
-	return runDirectCommand("git stash list")
-}
-
-func gitMerge(branchName string) (string, error) {
-	return runDirectCommand("git merge --no-edit " + branchName)
-}
-
-func gitAbortMerge() (string, error) {
-	return runDirectCommand("git merge --abort")
-}
-
-func gitUpstreamDifferenceCount() (string, string) {
-	pushableCount, err := runDirectCommand("git rev-list @{u}..head --count")
-	if err != nil {
-		return "?", "?"
-	}
-	pullableCount, err := runDirectCommand("git rev-list head..@{u} --count")
-	if err != nil {
-		return "?", "?"
-	}
-	return strings.TrimSpace(pushableCount), strings.TrimSpace(pullableCount)
-}
-
-func gitCommitsToPush() []string {
-	pushables, err := runDirectCommand("git rev-list @{u}..head --abbrev-commit")
-	if err != nil {
-		return make([]string, 0)
-	}
-	return splitLines(pushables)
-}
-
-func gitCurrentBranchName() string {
-	branchName, err := runDirectCommand("git symbolic-ref --short HEAD")
-	// if there is an error, assume there are no branches yet
-	if err != nil {
-		return ""
-	}
-	return strings.TrimSpace(branchName)
-}
-
-// A line will have the form '10 days ago master' so we need to strip out the
-// useful information from that into timeNumber, timeUnit, and branchName
-func branchInfoFromLine(line string) (string, string, string) {
-	r := regexp.MustCompile("\\|.*\\s")
-	line = r.ReplaceAllString(line, " ")
-	words := strings.Split(line, " ")
-	return words[0], words[1], words[3]
-}
-
-func abbreviatedTimeUnit(timeUnit string) string {
-	r := regexp.MustCompile("s$")
-	timeUnit = r.ReplaceAllString(timeUnit, "")
-	timeUnitMap := map[string]string{
-		"hour":   "h",
-		"minute": "m",
-		"second": "s",
-		"week":   "w",
-		"year":   "y",
-		"day":    "d",
-		"month":  "m",
-	}
-	return timeUnitMap[timeUnit]
-}
-
-func getBranches() []Branch {
-	branches := make([]Branch, 0)
-	rawString, err := runDirectCommand("git reflog -n100 --pretty='%cr|%gs' --grep-reflog='checkout: moving' HEAD")
-	if err != nil {
-		return branches
-	}
-
-	branchLines := splitLines(rawString)
-	for i, line := range branchLines {
-		timeNumber, timeUnit, branchName := branchInfoFromLine(line)
-		timeUnit = abbreviatedTimeUnit(timeUnit)
-
-		if branchAlreadyStored(branchName, branches) {
-			continue
-		}
-
-		branch := constructBranch(timeNumber+timeUnit, branchName, i)
-		branches = append(branches, branch)
-	}
-	return branches
-}
-
-func constructBranch(prefix, name string, index int) Branch {
-	branchType, branchBase, colourAttr := branchPropertiesFromName(name)
-	if index == 0 {
-		prefix = "  *"
-	}
-	colour := color.New(colourAttr)
-	displayString := withPadding(prefix, 4) + coloredString(name, colour)
-	return Branch{
-		Name:          name,
-		Type:          branchType,
-		BaseBranch:    branchBase,
-		DisplayString: displayString,
-	}
-}
-
-func getGitBranches() []Branch {
-	// check if there are any branches
-	branchCheck, _ := runCommand("git branch")
-	if branchCheck == "" {
-		return []Branch{constructBranch("", gitCurrentBranchName(), 0)}
-	}
-	branches := getBranches()
-	if len(branches) == 0 {
-		branches = append(branches, constructBranch("", gitCurrentBranchName(), 0))
-	}
-	branches = getAndMergeFetchedBranches(branches)
-	return branches
-}
-
-func branchAlreadyStored(branchName string, branches []Branch) bool {
-	for _, existingBranch := range branches {
-		if existingBranch.Name == branchName {
-			return true
-		}
-	}
-	return false
-}
-
-// here branches contains all the branches that we've checked out, along with
-// the recency. In this function we append the branches that are in our heads
-// directory i.e. things we've fetched but haven't necessarily checked out.
-// Worth mentioning this has nothing to do with the 'git merge' operation
-func getAndMergeFetchedBranches(branches []Branch) []Branch {
-	rawString, err := runDirectCommand("git branch --sort=-committerdate --no-color")
-	if err != nil {
-		return branches
-	}
-	branchLines := splitLines(rawString)
-	for _, line := range branchLines {
-		line = strings.Replace(line, "* ", "", -1)
-		line = strings.TrimSpace(line)
-		if branchAlreadyStored(line, branches) {
-			continue
-		}
-		branches = append(branches, constructBranch("", line, len(branches)))
-	}
-	return branches
-}

go.mod

@@ -0,0 +1,41 @@
+module github.com/jesseduffield/lazygit
+
+go 1.14
+
+require (
+	github.com/atotto/clipboard v0.1.2
+	github.com/cloudfoundry/jibber_jabber v0.0.0-20151120183258-bcc4c8345a21
+	github.com/creack/pty v1.1.11
+	github.com/fatih/color v1.7.0
+	github.com/fsnotify/fsnotify v1.4.7
+	github.com/go-errors/errors v1.1.1
+	github.com/go-git/go-git/v5 v5.0.0
+	github.com/golang-collections/collections v0.0.0-20130729185459-604e922904d3
+	github.com/golang/protobuf v1.3.2 // indirect
+	github.com/google/go-cmp v0.3.1 // indirect
+	github.com/integrii/flaggy v1.4.0
+	github.com/jesseduffield/gocui v0.3.1-0.20200824100831-1b6ec5d7d449
+	github.com/jesseduffield/termbox-go v0.0.0-20200823212418-a2289ed6aafe // indirect
+	github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0
+	github.com/konsorten/go-windows-terminal-sequences v1.0.2 // indirect
+	github.com/mattn/go-colorable v0.1.4 // indirect
+	github.com/mattn/go-isatty v0.0.11 // indirect
+	github.com/mattn/go-runewidth v0.0.9
+	github.com/mgutz/str v1.2.0
+	github.com/nicksnyder/go-i18n/v2 v2.0.3
+	github.com/onsi/ginkgo v1.10.3 // indirect
+	github.com/onsi/gomega v1.7.1 // indirect
+	github.com/pelletier/go-toml v1.6.0 // indirect
+	github.com/shibukawa/configdir v0.0.0-20170330084843-e180dbdc8da0
+	github.com/sirupsen/logrus v1.4.2
+	github.com/spf13/afero v1.2.2 // indirect
+	github.com/spf13/jwalterweatherman v1.1.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/spf13/viper v1.6.1
+	github.com/spkg/bom v0.0.0-20160624110644-59b7046e48ad
+	github.com/stretchr/testify v1.4.0
+	github.com/tcnksm/go-gitconfig v0.1.2
+	golang.org/x/sys v0.0.0-20200824131525-c12d262b63d8 // indirect
+	golang.org/x/text v0.3.2
+	gopkg.in/yaml.v2 v2.2.7
+)

go.sum

@@ -0,0 +1,284 @@
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+github.com/alcortesm/tgz v0.0.0-20161220082320-9c5fe88206d7 h1:uSoVVbwJiQipAclBbw+8quDsfcvFjOpI5iCf4p/cqCs=
+github.com/alcortesm/tgz v0.0.0-20161220082320-9c5fe88206d7/go.mod h1:6zEj6s6u/ghQa61ZWa/C2Aw3RkjiTBOix7dkqa1VLIs=
+github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
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gui.go

@@ -1,297 +0,0 @@
-package main
-
-import (
-
-	// "io"
-	// "io/ioutil"
-
-	"log"
-	"runtime"
-	"strings"
-	"time"
-
-	// "strings"
-
-	"github.com/golang-collections/collections/stack"
-	"github.com/jesseduffield/gocui"
-)
-
-// OverlappingEdges determines if panel edges overlap
-var OverlappingEdges = false
-
-type stateType struct {
-	GitFiles          []GitFile
-	Branches          []Branch
-	Commits           []Commit
-	StashEntries      []StashEntry
-	PreviousView      string
-	HasMergeConflicts bool
-	ConflictIndex     int
-	ConflictTop       bool
-	Conflicts         []conflict
-	EditHistory       *stack.Stack
-}
-
-type conflict struct {
-	start  int
-	middle int
-	end    int
-}
-
-var state = stateType{
-	GitFiles:      make([]GitFile, 0),
-	PreviousView:  "files",
-	Commits:       make([]Commit, 0),
-	StashEntries:  make([]StashEntry, 0),
-	ConflictIndex: 0,
-	ConflictTop:   true,
-	Conflicts:     make([]conflict, 0),
-	EditHistory:   stack.New(),
-}
-
-func scrollUpMain(g *gocui.Gui, v *gocui.View) error {
-	mainView, _ := g.View("main")
-	ox, oy := mainView.Origin()
-	if oy >= 1 {
-		return mainView.SetOrigin(ox, oy-1)
-	}
-	return nil
-}
-
-func scrollDownMain(g *gocui.Gui, v *gocui.View) error {
-	mainView, _ := g.View("main")
-	ox, oy := mainView.Origin()
-	if oy < len(mainView.BufferLines()) {
-		return mainView.SetOrigin(ox, oy+1)
-	}
-	return nil
-}
-
-func handleRefresh(g *gocui.Gui, v *gocui.View) error {
-	return refreshSidePanels(g)
-}
-
-// Binding - a keybinding mapping a key and modifier to a handler. The keypress
-// is only handled if the given view has focus, or handled globally if the view
-// is ""
-type Binding struct {
-	ViewName string
-	Handler  func(*gocui.Gui, *gocui.View) error
-	Key      interface{} // FIXME: find out how to get `gocui.Key | rune`
-	Modifier gocui.Modifier
-}
-
-func keybindings(g *gocui.Gui) error {
-	bindings := []Binding{
-		Binding{ViewName: "", Key: gocui.KeyArrowLeft, Modifier: gocui.ModNone, Handler: previousView},
-		Binding{ViewName: "", Key: gocui.KeyArrowRight, Modifier: gocui.ModNone, Handler: nextView},
-		Binding{ViewName: "", Key: gocui.KeyTab, Modifier: gocui.ModNone, Handler: nextView},
-		Binding{ViewName: "", Key: 'q', Modifier: gocui.ModNone, Handler: quit},
-		Binding{ViewName: "", Key: gocui.KeyCtrlC, Modifier: gocui.ModNone, Handler: quit},
-		Binding{ViewName: "", Key: gocui.KeyArrowDown, Modifier: gocui.ModNone, Handler: cursorDown},
-		Binding{ViewName: "", Key: gocui.KeyArrowUp, Modifier: gocui.ModNone, Handler: cursorUp},
-		Binding{ViewName: "", Key: gocui.KeyPgup, Modifier: gocui.ModNone, Handler: scrollUpMain},
-		Binding{ViewName: "", Key: gocui.KeyPgdn, Modifier: gocui.ModNone, Handler: scrollDownMain},
-		Binding{ViewName: "", Key: 'P', Modifier: gocui.ModNone, Handler: pushFiles},
-		Binding{ViewName: "", Key: 'p', Modifier: gocui.ModNone, Handler: pullFiles},
-		Binding{ViewName: "", Key: 'R', Modifier: gocui.ModNone, Handler: handleRefresh},
-		Binding{ViewName: "files", Key: 'c', Modifier: gocui.ModNone, Handler: handleCommitPress},
-		Binding{ViewName: "files", Key: gocui.KeySpace, Modifier: gocui.ModNone, Handler: handleFilePress},
-		Binding{ViewName: "files", Key: 'd', Modifier: gocui.ModNone, Handler: handleFileRemove},
-		Binding{ViewName: "files", Key: 'm', Modifier: gocui.ModNone, Handler: handleSwitchToMerge},
-		Binding{ViewName: "files", Key: 'o', Modifier: gocui.ModNone, Handler: handleFileOpen},
-		Binding{ViewName: "files", Key: 's', Modifier: gocui.ModNone, Handler: handleSublimeFileOpen},
-		Binding{ViewName: "files", Key: 'v', Modifier: gocui.ModNone, Handler: handleVsCodeFileOpen},
-		Binding{ViewName: "files", Key: 'i', Modifier: gocui.ModNone, Handler: handleIgnoreFile},
-		Binding{ViewName: "files", Key: 'r', Modifier: gocui.ModNone, Handler: handleRefreshFiles},
-		Binding{ViewName: "files", Key: 'S', Modifier: gocui.ModNone, Handler: handleStashSave},
-		Binding{ViewName: "files", Key: 'a', Modifier: gocui.ModNone, Handler: handleAbortMerge},
-		Binding{ViewName: "main", Key: gocui.KeyArrowUp, Modifier: gocui.ModNone, Handler: handleSelectTop},
-		Binding{ViewName: "main", Key: gocui.KeyArrowDown, Modifier: gocui.ModNone, Handler: handleSelectBottom},
-		Binding{ViewName: "main", Key: gocui.KeyEsc, Modifier: gocui.ModNone, Handler: handleEscapeMerge},
-		Binding{ViewName: "main", Key: gocui.KeySpace, Modifier: gocui.ModNone, Handler: handlePickHunk},
-		Binding{ViewName: "main", Key: 'b', Modifier: gocui.ModNone, Handler: handlePickBothHunks},
-		Binding{ViewName: "main", Key: gocui.KeyArrowLeft, Modifier: gocui.ModNone, Handler: handleSelectPrevConflict},
-		Binding{ViewName: "main", Key: gocui.KeyArrowRight, Modifier: gocui.ModNone, Handler: handleSelectNextConflict},
-		Binding{ViewName: "main", Key: 'z', Modifier: gocui.ModNone, Handler: handlePopFileSnapshot},
-		Binding{ViewName: "branches", Key: gocui.KeySpace, Modifier: gocui.ModNone, Handler: handleBranchPress},
-		Binding{ViewName: "branches", Key: 'c', Modifier: gocui.ModNone, Handler: handleCheckoutByName},
-		Binding{ViewName: "branches", Key: 'F', Modifier: gocui.ModNone, Handler: handleForceCheckout},
-		Binding{ViewName: "branches", Key: 'n', Modifier: gocui.ModNone, Handler: handleNewBranch},
-		Binding{ViewName: "branches", Key: 'm', Modifier: gocui.ModNone, Handler: handleMerge},
-		Binding{ViewName: "commits", Key: 's', Modifier: gocui.ModNone, Handler: handleCommitSquashDown},
-		Binding{ViewName: "commits", Key: 'r', Modifier: gocui.ModNone, Handler: handleRenameCommit},
-		Binding{ViewName: "commits", Key: 'g', Modifier: gocui.ModNone, Handler: handleResetToCommit},
-		Binding{ViewName: "stash", Key: gocui.KeySpace, Modifier: gocui.ModNone, Handler: handleStashApply},
-		Binding{ViewName: "stash", Key: 'k', Modifier: gocui.ModNone, Handler: handleStashPop},
-		Binding{ViewName: "stash", Key: 'd', Modifier: gocui.ModNone, Handler: handleStashDrop},
-	}
-	for _, binding := range bindings {
-		if err := g.SetKeybinding(binding.ViewName, binding.Key, binding.Modifier, binding.Handler); err != nil {
-			return err
-		}
-	}
-	return nil
-}
-
-func layout(g *gocui.Gui) error {
-	g.Highlight = true
-	g.SelFgColor = gocui.ColorWhite | gocui.AttrBold
-	if runtime.GOOS != "windows" {
-		g.FgColor = gocui.ColorBlack
-	}
-	width, height := g.Size()
-	leftSideWidth := width / 3
-	statusFilesBoundary := 2
-	filesBranchesBoundary := 2 * height / 5   // height - 20
-	commitsBranchesBoundary := 3 * height / 5 // height - 10
-	commitsStashBoundary := height - 5        // height - 5
-	minimumHeight := 16
-
-	panelSpacing := 1
-	if OverlappingEdges {
-		panelSpacing = 0
-	}
-
-	if height < minimumHeight {
-		v, err := g.SetView("limit", 0, 0, width-1, height-1, 0)
-		if err != nil {
-			if err != gocui.ErrUnknownView {
-				return err
-			}
-			v.Title = "Not enough space to render panels"
-			v.Wrap = true
-		}
-		return nil
-	}
-
-	g.DeleteView("limit")
-
-	optionsTop := height - 2
-	// hiding options if there's not enough space
-	if height < 30 {
-		optionsTop = height - 1
-	}
-
-	v, err := g.SetView("main", leftSideWidth+panelSpacing, 0, width-1, optionsTop, gocui.LEFT)
-	if err != nil {
-		if err != gocui.ErrUnknownView {
-			return err
-		}
-		v.Title = "Diff"
-		v.Wrap = true
-		v.FgColor = gocui.ColorWhite
-	}
-
-	if v, err := g.SetView("status", 0, 0, leftSideWidth, statusFilesBoundary, gocui.BOTTOM|gocui.RIGHT); err != nil {
-		if err != gocui.ErrUnknownView {
-			return err
-		}
-		v.Title = "Status"
-		v.FgColor = gocui.ColorWhite
-	}
-
-	filesView, err := g.SetView("files", 0, statusFilesBoundary+panelSpacing, leftSideWidth, filesBranchesBoundary, gocui.TOP|gocui.BOTTOM)
-	if err != nil {
-		if err != gocui.ErrUnknownView {
-			return err
-		}
-		filesView.Highlight = true
-		filesView.Title = "Files"
-		v.FgColor = gocui.ColorWhite
-	}
-
-	if v, err := g.SetView("branches", 0, filesBranchesBoundary+panelSpacing, leftSideWidth, commitsBranchesBoundary, gocui.TOP|gocui.BOTTOM); err != nil {
-		if err != gocui.ErrUnknownView {
-			return err
-		}
-		v.Title = "Branches"
-		v.FgColor = gocui.ColorWhite
-	}
-
-	if v, err := g.SetView("commits", 0, commitsBranchesBoundary+panelSpacing, leftSideWidth, commitsStashBoundary, gocui.TOP|gocui.BOTTOM); err != nil {
-		if err != gocui.ErrUnknownView {
-			return err
-		}
-		v.Title = "Commits"
-		v.FgColor = gocui.ColorWhite
-	}
-
-	if v, err := g.SetView("stash", 0, commitsStashBoundary+panelSpacing, leftSideWidth, optionsTop, gocui.TOP|gocui.RIGHT); err != nil {
-		if err != gocui.ErrUnknownView {
-			return err
-		}
-		v.Title = "Stash"
-		v.FgColor = gocui.ColorWhite
-	}
-
-	if v, err := g.SetView("options", -1, optionsTop, width, optionsTop+2, 0); err != nil {
-		if err != gocui.ErrUnknownView {
-			return err
-		}
-		v.BgColor = gocui.ColorDefault
-		v.FgColor = gocui.ColorBlue
-		v.Frame = false
-		v.Title = "Options"
-
-		// these are only called once
-		handleFileSelect(g, filesView)
-		refreshFiles(g)
-		refreshBranches(g)
-		refreshCommits(g)
-		refreshStashEntries(g)
-		nextView(g, nil)
-	}
-
-	return nil
-}
-
-func fetch(g *gocui.Gui) {
-	gitFetch()
-	refreshStatus(g)
-}
-
-func updateLoader(g *gocui.Gui) {
-	if confirmationView, _ := g.View("confirmation"); confirmationView != nil {
-		content := trimmedContent(confirmationView)
-		if strings.Contains(content, "...") {
-			staticContent := strings.Split(content, "...")[0] + "..."
-			renderString(g, "confirmation", staticContent+" "+loader())
-		}
-	}
-}
-
-func run() {
-	g, err := gocui.NewGui(gocui.OutputNormal, OverlappingEdges)
-	if err != nil {
-		log.Panicln(err)
-	}
-	defer g.Close()
-
-	// periodically fetching to check for upstream differences
-	go func() {
-		for range time.Tick(time.Second * 60) {
-			fetch(g)
-		}
-	}()
-
-	go func() {
-		for range time.Tick(time.Millisecond * 10) {
-			updateLoader(g)
-		}
-	}()
-
-	g.SetManagerFunc(layout)
-
-	if err := keybindings(g); err != nil {
-		log.Panicln(err)
-	}
-
-	if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
-		log.Panicln(err)
-	}
-}
-
-func quit(g *gocui.Gui, v *gocui.View) error {
-	return gocui.ErrQuit
-}

main.go

@@ -1,69 +1,83 @@
 package main
 
 import (
-	"flag"
 	"fmt"
 	"log"
 	"os"
-	"os/user"
-	"time"
+	"runtime"
 
-	"github.com/fatih/color"
+	"github.com/go-errors/errors"
+	"github.com/integrii/flaggy"
+	"github.com/jesseduffield/lazygit/pkg/app"
+	"github.com/jesseduffield/lazygit/pkg/config"
 )
 
 var (
-	startTime time.Time
-	debugging bool
+	commit      string
+	version     = "unversioned"
+	date        string
+	buildSource = "unknown"
 )
 
-func homeDirectory() string {
-	usr, err := user.Current()
-	if err != nil {
-		log.Fatal(err)
-	}
-	return usr.HomeDir
-}
-
-func devLog(objects ...interface{}) {
-	localLog(color.FgWhite, homeDirectory()+"/go/src/github.com/jesseduffield/lazygit/development.log", objects...)
-}
-
-func colorLog(colour color.Attribute, objects ...interface{}) {
-	localLog(colour, homeDirectory()+"/go/src/github.com/jesseduffield/lazygit/development.log", objects...)
-}
-
-func commandLog(objects ...interface{}) {
-	localLog(color.FgWhite, homeDirectory()+"/go/src/github.com/jesseduffield/lazygit/commands.log", objects...)
-}
-
-func localLog(colour color.Attribute, path string, objects ...interface{}) {
-	if !debugging {
-		return
-	}
-	f, _ := os.OpenFile(path, os.O_APPEND|os.O_WRONLY, 0644)
-	defer f.Close()
-	for _, object := range objects {
-		colorFunction := color.New(colour).SprintFunc()
-		f.WriteString(colorFunction(fmt.Sprint(object)) + "\n")
-	}
-}
-
-func navigateToRepoRootDirectory() {
-	_, err := os.Stat(".git")
-	for os.IsNotExist(err) {
-		devLog("going up a directory to find the root")
-		os.Chdir("..")
-		_, err = os.Stat(".git")
-	}
-}
-
 func main() {
-	debuggingPointer := flag.Bool("debug", false, "a boolean")
-	flag.Parse()
-	debugging = *debuggingPointer
-	devLog("\n\n\n\n\n\n\n\n\n\n")
-	startTime = time.Now()
-	verifyInGitRepo()
-	navigateToRepoRootDirectory()
-	run()
+	flaggy.DefaultParser.ShowVersionWithVersionFlag = false
+
+	repoPath := "."
+	flaggy.String(&repoPath, "p", "path", "Path of git repo")
+
+	filterPath := ""
+	flaggy.String(&filterPath, "f", "filter", "Path to filter on in `git log -- <path>`. When in filter mode, the commits, reflog, and stash are filtered based on the given path, and some operations are restricted")
+
+	dump := ""
+	flaggy.AddPositionalValue(&dump, "gitargs", 1, false, "Todo file")
+	flaggy.DefaultParser.PositionalFlags[0].Hidden = true
+
+	versionFlag := false
+	flaggy.Bool(&versionFlag, "v", "version", "Print the current version")
+
+	debuggingFlag := false
+	flaggy.Bool(&debuggingFlag, "d", "debug", "Run in debug mode with logging")
+
+	configFlag := false
+	flaggy.Bool(&configFlag, "c", "config", "Print the current default config")
+
+	flaggy.Parse()
+
+	if versionFlag {
+		fmt.Printf("commit=%s, build date=%s, build source=%s, version=%s, os=%s, arch=%s\n", commit, date, buildSource, version, runtime.GOOS, runtime.GOARCH)
+		os.Exit(0)
+	}
+
+	if configFlag {
+		fmt.Printf("%s\n", config.GetDefaultConfig())
+		os.Exit(0)
+	}
+
+	if repoPath != "." {
+		if err := os.Chdir(repoPath); err != nil {
+			log.Fatal(err.Error())
+		}
+	}
+
+	appConfig, err := config.NewAppConfig("lazygit", version, commit, date, buildSource, debuggingFlag)
+	if err != nil {
+		log.Fatal(err.Error())
+	}
+
+	app, err := app.NewApp(appConfig, filterPath)
+
+	if err == nil {
+		err = app.Run()
+	}
+
+	if err != nil {
+		if errorMessage, known := app.KnownError(err); known {
+			log.Fatal(errorMessage)
+		}
+		newErr := errors.Wrap(err, 0)
+		stackTrace := newErr.ErrorStack()
+		app.Log.Error(stackTrace)
+
+		log.Fatal(fmt.Sprintf("%s\n\n%s", app.Tr.SLocalize("ErrorOccurred"), stackTrace))
+	}
 }

merge_panel.go

@@ -1,264 +0,0 @@
-// though this panel is called the merge panel, it's really going to use the main panel. This may change in the future
-
-package main
-
-import (
-	"bufio"
-	"bytes"
-	"io/ioutil"
-	"math"
-	"os"
-	"strings"
-
-	"github.com/fatih/color"
-	"github.com/jesseduffield/gocui"
-)
-
-func findConflicts(content string) ([]conflict, error) {
-	conflicts := make([]conflict, 0)
-	var newConflict conflict
-	for i, line := range splitLines(content) {
-		if line == "<<<<<<< HEAD" || line == "<<<<<<< MERGE_HEAD" || line == "<<<<<<< Updated upstream" {
-			newConflict = conflict{start: i}
-		} else if line == "=======" {
-			newConflict.middle = i
-		} else if strings.HasPrefix(line, ">>>>>>> ") {
-			newConflict.end = i
-			conflicts = append(conflicts, newConflict)
-		}
-	}
-	return conflicts, nil
-}
-
-func shiftConflict(conflicts []conflict) (conflict, []conflict) {
-	return conflicts[0], conflicts[1:]
-}
-
-func shouldHighlightLine(index int, conflict conflict, top bool) bool {
-	return (index >= conflict.start && index <= conflict.middle && top) || (index >= conflict.middle && index <= conflict.end && !top)
-}
-
-func coloredConflictFile(content string, conflicts []conflict, conflictIndex int, conflictTop, hasFocus bool) (string, error) {
-	if len(conflicts) == 0 {
-		return content, nil
-	}
-	conflict, remainingConflicts := shiftConflict(conflicts)
-	var outputBuffer bytes.Buffer
-	for i, line := range splitLines(content) {
-		colourAttr := color.FgWhite
-		if i == conflict.start || i == conflict.middle || i == conflict.end {
-			colourAttr = color.FgRed
-		}
-		colour := color.New(colourAttr)
-		if hasFocus && conflictIndex < len(conflicts) && conflicts[conflictIndex] == conflict && shouldHighlightLine(i, conflict, conflictTop) {
-			colour.Add(color.Bold)
-		}
-		if i == conflict.end && len(remainingConflicts) > 0 {
-			conflict, remainingConflicts = shiftConflict(remainingConflicts)
-		}
-		outputBuffer.WriteString(coloredString(line, colour) + "\n")
-	}
-	return outputBuffer.String(), nil
-}
-
-func handleSelectTop(g *gocui.Gui, v *gocui.View) error {
-	state.ConflictTop = true
-	return refreshMergePanel(g)
-}
-
-func handleSelectBottom(g *gocui.Gui, v *gocui.View) error {
-	state.ConflictTop = false
-	return refreshMergePanel(g)
-}
-
-func handleSelectNextConflict(g *gocui.Gui, v *gocui.View) error {
-	if state.ConflictIndex >= len(state.Conflicts)-1 {
-		return nil
-	}
-	state.ConflictIndex++
-	return refreshMergePanel(g)
-}
-
-func handleSelectPrevConflict(g *gocui.Gui, v *gocui.View) error {
-	if state.ConflictIndex <= 0 {
-		return nil
-	}
-	state.ConflictIndex--
-	return refreshMergePanel(g)
-}
-
-func isIndexToDelete(i int, conflict conflict, pick string) bool {
-	return i == conflict.middle ||
-		i == conflict.start ||
-		i == conflict.end ||
-		pick != "both" &&
-			(pick == "bottom" && i > conflict.start && i < conflict.middle) ||
-		(pick == "top" && i > conflict.middle && i < conflict.end)
-}
-
-func resolveConflict(g *gocui.Gui, conflict conflict, pick string) error {
-	gitFile, err := getSelectedFile(g)
-	if err != nil {
-		return err
-	}
-	file, err := os.Open(gitFile.Name)
-	if err != nil {
-		return err
-	}
-	defer file.Close()
-
-	reader := bufio.NewReader(file)
-	output := ""
-	for i := 0; true; i++ {
-		line, err := reader.ReadString('\n')
-		if err != nil {
-			break
-		}
-		if !isIndexToDelete(i, conflict, pick) {
-			output += line
-		}
-	}
-	devLog(output)
-	return ioutil.WriteFile(gitFile.Name, []byte(output), 0644)
-}
-
-func pushFileSnapshot(g *gocui.Gui) error {
-	gitFile, err := getSelectedFile(g)
-	if err != nil {
-		return err
-	}
-	content, err := catFile(gitFile.Name)
-	if err != nil {
-		return err
-	}
-	state.EditHistory.Push(content)
-	return nil
-}
-
-func handlePopFileSnapshot(g *gocui.Gui, v *gocui.View) error {
-	colorLog(color.FgCyan, "IM HERE")
-	if state.EditHistory.Len() == 0 {
-		return nil
-	}
-	prevContent := state.EditHistory.Pop().(string)
-	gitFile, err := getSelectedFile(g)
-	if err != nil {
-		return err
-	}
-	ioutil.WriteFile(gitFile.Name, []byte(prevContent), 0644)
-	return refreshMergePanel(g)
-}
-
-func handlePickHunk(g *gocui.Gui, v *gocui.View) error {
-	conflict := state.Conflicts[state.ConflictIndex]
-	pushFileSnapshot(g)
-	pick := "bottom"
-	if state.ConflictTop {
-		pick = "top"
-	}
-	err := resolveConflict(g, conflict, pick)
-	if err != nil {
-		panic(err)
-	}
-	refreshMergePanel(g)
-	return nil
-}
-
-func handlePickBothHunks(g *gocui.Gui, v *gocui.View) error {
-	conflict := state.Conflicts[state.ConflictIndex]
-	pushFileSnapshot(g)
-	err := resolveConflict(g, conflict, "both")
-	if err != nil {
-		panic(err)
-	}
-	return refreshMergePanel(g)
-}
-
-func currentViewName(g *gocui.Gui) string {
-	currentView := g.CurrentView()
-	return currentView.Name()
-}
-
-func refreshMergePanel(g *gocui.Gui) error {
-	cat, err := catSelectedFile(g)
-	if err != nil {
-		return err
-	}
-	state.Conflicts, err = findConflicts(cat)
-	if err != nil {
-		return err
-	}
-
-	if len(state.Conflicts) == 0 {
-		return handleCompleteMerge(g)
-	} else if state.ConflictIndex > len(state.Conflicts)-1 {
-		state.ConflictIndex = len(state.Conflicts) - 1
-	}
-	hasFocus := currentViewName(g) == "main"
-	if hasFocus {
-		renderMergeOptions(g)
-	}
-	content, err := coloredConflictFile(cat, state.Conflicts, state.ConflictIndex, state.ConflictTop, hasFocus)
-	if err != nil {
-		return err
-	}
-	if err := scrollToConflict(g); err != nil {
-		return err
-	}
-	return renderString(g, "main", content)
-}
-
-func scrollToConflict(g *gocui.Gui) error {
-	mainView, err := g.View("main")
-	if err != nil {
-		return err
-	}
-	if len(state.Conflicts) == 0 {
-		return nil
-	}
-	conflict := state.Conflicts[state.ConflictIndex]
-	ox, _ := mainView.Origin()
-	_, height := mainView.Size()
-	conflictMiddle := (conflict.end + conflict.start) / 2
-	newOriginY := int(math.Max(0, float64(conflictMiddle-(height/2))))
-	return mainView.SetOrigin(ox, newOriginY)
-}
-
-func switchToMerging(g *gocui.Gui) error {
-	state.ConflictIndex = 0
-	state.ConflictTop = true
-	_, err := g.SetCurrentView("main")
-	if err != nil {
-		return err
-	}
-	return refreshMergePanel(g)
-}
-
-func renderMergeOptions(g *gocui.Gui) error {
-	return renderOptionsMap(g, map[string]string{
-		"↑ ↓":   "select hunk",
-		"← →":   "navigate conflicts",
-		"space": "pick hunk",
-		"b":     "pick both hunks",
-		"z":     "undo",
-	})
-}
-
-func handleEscapeMerge(g *gocui.Gui, v *gocui.View) error {
-	filesView, err := g.View("files")
-	if err != nil {
-		return err
-	}
-	refreshFiles(g)
-	return switchFocus(g, v, filesView)
-}
-
-func handleCompleteMerge(g *gocui.Gui) error {
-	filesView, err := g.View("files")
-	if err != nil {
-		return err
-	}
-	stageSelectedFile(g)
-	refreshFiles(g)
-	return switchFocus(g, nil, filesView)
-}

pkg/app/app.go

@@ -0,0 +1,268 @@
+package app
+
+import (
+	"bufio"
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"github.com/jesseduffield/lazygit/pkg/commands"
+	"github.com/jesseduffield/lazygit/pkg/config"
+	"github.com/jesseduffield/lazygit/pkg/gui"
+	"github.com/jesseduffield/lazygit/pkg/i18n"
+	"github.com/jesseduffield/lazygit/pkg/updates"
+	"github.com/shibukawa/configdir"
+	"github.com/sirupsen/logrus"
+)
+
+// App struct
+type App struct {
+	closers []io.Closer
+
+	Config        config.AppConfigurer
+	Log           *logrus.Entry
+	OSCommand     *commands.OSCommand
+	GitCommand    *commands.GitCommand
+	Gui           *gui.Gui
+	Tr            *i18n.Localizer
+	Updater       *updates.Updater // may only need this on the Gui
+	ClientContext string
+}
+
+type errorMapping struct {
+	originalError string
+	newError      string
+}
+
+func newProductionLogger(config config.AppConfigurer) *logrus.Logger {
+	log := logrus.New()
+	log.Out = ioutil.Discard
+	log.SetLevel(logrus.ErrorLevel)
+	return log
+}
+
+func globalConfigDir() string {
+	configDirs := configdir.New("jesseduffield", "lazygit")
+	configDir := configDirs.QueryFolders(configdir.Global)[0]
+	return configDir.Path
+}
+
+func getLogLevel() logrus.Level {
+	strLevel := os.Getenv("LOG_LEVEL")
+	level, err := logrus.ParseLevel(strLevel)
+	if err != nil {
+		return logrus.DebugLevel
+	}
+	return level
+}
+
+func newDevelopmentLogger(config config.AppConfigurer) *logrus.Logger {
+	log := logrus.New()
+	log.SetLevel(getLogLevel())
+	file, err := os.OpenFile(filepath.Join(globalConfigDir(), "development.log"), os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
+	if err != nil {
+		panic("unable to log to file") // TODO: don't panic (also, remove this call to the `panic` function)
+	}
+	log.SetOutput(file)
+	return log
+}
+
+func newLogger(config config.AppConfigurer) *logrus.Entry {
+	var log *logrus.Logger
+	if config.GetDebug() || os.Getenv("DEBUG") == "TRUE" {
+		log = newDevelopmentLogger(config)
+	} else {
+		log = newProductionLogger(config)
+	}
+
+	// highly recommended: tail -f development.log | humanlog
+	// https://github.com/aybabtme/humanlog
+	log.Formatter = &logrus.JSONFormatter{}
+
+	return log.WithFields(logrus.Fields{
+		"debug":     config.GetDebug(),
+		"version":   config.GetVersion(),
+		"commit":    config.GetCommit(),
+		"buildDate": config.GetBuildDate(),
+	})
+}
+
+// NewApp bootstrap a new application
+func NewApp(config config.AppConfigurer, filterPath string) (*App, error) {
+	app := &App{
+		closers: []io.Closer{},
+		Config:  config,
+	}
+	var err error
+	app.Log = newLogger(config)
+	app.Tr = i18n.NewLocalizer(app.Log)
+
+	// if we are being called in 'demon' mode, we can just return here
+	app.ClientContext = os.Getenv("LAZYGIT_CLIENT_COMMAND")
+	if app.ClientContext != "" {
+		return app, nil
+	}
+
+	app.OSCommand = commands.NewOSCommand(app.Log, config)
+
+	app.Updater, err = updates.NewUpdater(app.Log, config, app.OSCommand, app.Tr)
+	if err != nil {
+		return app, err
+	}
+
+	showRecentRepos, err := app.setupRepo()
+	if err != nil {
+		return app, err
+	}
+
+	app.GitCommand, err = commands.NewGitCommand(app.Log, app.OSCommand, app.Tr, app.Config)
+	if err != nil {
+		return app, err
+	}
+	app.Gui, err = gui.NewGui(app.Log, app.GitCommand, app.OSCommand, app.Tr, config, app.Updater, filterPath, showRecentRepos)
+	if err != nil {
+		return app, err
+	}
+	return app, nil
+}
+
+func (app *App) validateGitVersion() error {
+	output, err := app.OSCommand.RunCommandWithOutput("git --version")
+	// if we get an error anywhere here we'll show the same status
+	minVersionError := errors.New(app.Tr.SLocalize("minGitVersionError"))
+	if err != nil {
+		return minVersionError
+	}
+	// output should be something like: 'git version 2.23.0'
+	// first number in the string should be greater than 0
+	split := strings.Split(output, " ")
+	gitVersion := split[len(split)-1]
+	majorVersion, err := strconv.Atoi(gitVersion[0:1])
+	if err != nil {
+		return minVersionError
+	}
+	if majorVersion < 2 {
+		return minVersionError
+	}
+
+	return nil
+}
+
+func (app *App) setupRepo() (bool, error) {
+	if err := app.validateGitVersion(); err != nil {
+		return false, err
+	}
+
+	// if we are not in a git repo, we ask if we want to `git init`
+	if err := app.OSCommand.RunCommand("git status"); err != nil {
+		cwd, err := os.Getwd()
+		if err != nil {
+			return false, err
+		}
+		info, _ := os.Stat(filepath.Join(cwd, ".git"))
+		if info != nil && info.IsDir() {
+			return false, err // Current directory appears to be a git repository.
+		}
+
+		// Offer to initialize a new repository in current directory.
+		fmt.Print(app.Tr.SLocalize("CreateRepo"))
+		response, _ := bufio.NewReader(os.Stdin).ReadString('\n')
+		if strings.Trim(response, " \n") != "y" {
+			// check if we have a recent repo we can open
+			recentRepos := app.Config.GetAppState().RecentRepos
+			if len(recentRepos) > 0 {
+				var err error
+				// try opening each repo in turn, in case any have been deleted
+				for _, repoDir := range recentRepos {
+					if err = os.Chdir(repoDir); err == nil {
+						return true, nil
+					}
+				}
+				return false, err
+			}
+
+			os.Exit(1)
+		}
+		if err := app.OSCommand.RunCommand("git init"); err != nil {
+			return false, err
+		}
+	}
+	return false, nil
+}
+
+func (app *App) Run() error {
+	if app.ClientContext == "INTERACTIVE_REBASE" {
+		return app.Rebase()
+	}
+
+	if app.ClientContext == "EXIT_IMMEDIATELY" {
+		os.Exit(0)
+	}
+
+	err := app.Gui.RunWithSubprocesses()
+	return err
+}
+
+// Rebase contains logic for when we've been run in demon mode, meaning we've
+// given lazygit as a command for git to call e.g. to edit a file
+func (app *App) Rebase() error {
+	app.Log.Info("Lazygit invoked as interactive rebase demon")
+	app.Log.Info("args: ", os.Args)
+
+	if strings.HasSuffix(os.Args[1], "git-rebase-todo") {
+		if err := ioutil.WriteFile(os.Args[1], []byte(os.Getenv("LAZYGIT_REBASE_TODO")), 0644); err != nil {
+			return err
+		}
+
+	} else if strings.HasSuffix(os.Args[1], ".git/COMMIT_EDITMSG") {
+		// if we are rebasing and squashing, we'll see a COMMIT_EDITMSG
+		// but in this case we don't need to edit it, so we'll just return
+	} else {
+		app.Log.Info("Lazygit demon did not match on any use cases")
+	}
+
+	return nil
+}
+
+// Close closes any resources
+func (app *App) Close() error {
+	for _, closer := range app.closers {
+		err := closer.Close()
+		if err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// KnownError takes an error and tells us whether it's an error that we know about where we can print a nicely formatted version of it rather than panicking with a stack trace
+func (app *App) KnownError(err error) (string, bool) {
+	errorMessage := err.Error()
+
+	knownErrorMessages := []string{app.Tr.SLocalize("minGitVersionError")}
+
+	for _, message := range knownErrorMessages {
+		if errorMessage == message {
+			return message, true
+		}
+	}
+
+	mappings := []errorMapping{
+		{
+			originalError: "fatal: not a git repository",
+			newError:      app.Tr.SLocalize("notARepository"),
+		},
+	}
+
+	for _, mapping := range mappings {
+		if strings.Contains(errorMessage, mapping.originalError) {
+			return mapping.newError, true
+		}
+	}
+	return "", false
+}

pkg/commands/branch.go

@@ -0,0 +1,26 @@
+package commands
+
+// Branch : A git branch
+// duplicating this for now
+type Branch struct {
+	Name string
+	// the displayname is something like '(HEAD detached at 123asdf)', whereas in that case the name would be '123asdf'
+	DisplayName  string
+	Recency      string
+	Pushables    string
+	Pullables    string
+	UpstreamName string
+	Head         bool
+}
+
+func (b *Branch) RefName() string {
+	return b.Name
+}
+
+func (b *Branch) ID() string {
+	return b.RefName()
+}
+
+func (b *Branch) Description() string {
+	return b.RefName()
+}

pkg/commands/branch_list_builder.go

@@ -0,0 +1,160 @@
+package commands
+
+import (
+	"regexp"
+	"strings"
+
+	"github.com/jesseduffield/lazygit/pkg/utils"
+	"github.com/sirupsen/logrus"
+)
+
+// context:
+// we want to only show 'safe' branches (ones that haven't e.g. been deleted)
+// which `git branch -a` gives us, but we also want the recency data that
+// git reflog gives us.
+// So we get the HEAD, then append get the reflog branches that intersect with
+// our safe branches, then add the remaining safe branches, ensuring uniqueness
+// along the way
+
+// if we find out we need to use one of these functions in the git.go file, we
+// can just pull them out of here and put them there and then call them from in here
+
+// BranchListBuilder returns a list of Branch objects for the current repo
+type BranchListBuilder struct {
+	Log           *logrus.Entry
+	GitCommand    *GitCommand
+	ReflogCommits []*Commit
+}
+
+// NewBranchListBuilder builds a new branch list builder
+func NewBranchListBuilder(log *logrus.Entry, gitCommand *GitCommand, reflogCommits []*Commit) (*BranchListBuilder, error) {
+	return &BranchListBuilder{
+		Log:           log,
+		GitCommand:    gitCommand,
+		ReflogCommits: reflogCommits,
+	}, nil
+}
+
+func (b *BranchListBuilder) obtainBranches() []*Branch {
+	cmdStr := `git for-each-ref --sort=-committerdate --format="%(HEAD)|%(refname:short)|%(upstream:short)|%(upstream:track)" refs/heads`
+	output, err := b.GitCommand.OSCommand.RunCommandWithOutput(cmdStr)
+	if err != nil {
+		panic(err)
+	}
+
+	trimmedOutput := strings.TrimSpace(output)
+	outputLines := strings.Split(trimmedOutput, "\n")
+	branches := make([]*Branch, 0, len(outputLines))
+	for _, line := range outputLines {
+		if line == "" {
+			continue
+		}
+
+		split := strings.Split(line, SEPARATION_CHAR)
+
+		name := strings.TrimPrefix(split[1], "heads/")
+		branch := &Branch{
+			Name:      name,
+			Pullables: "?",
+			Pushables: "?",
+			Head:      split[0] == "*",
+		}
+
+		upstreamName := split[2]
+		if upstreamName == "" {
+			branches = append(branches, branch)
+			continue
+		}
+
+		branch.UpstreamName = upstreamName
+
+		track := split[3]
+		re := regexp.MustCompile(`ahead (\d+)`)
+		match := re.FindStringSubmatch(track)
+		if len(match) > 1 {
+			branch.Pushables = match[1]
+		} else {
+			branch.Pushables = "0"
+		}
+
+		re = regexp.MustCompile(`behind (\d+)`)
+		match = re.FindStringSubmatch(track)
+		if len(match) > 1 {
+			branch.Pullables = match[1]
+		} else {
+			branch.Pullables = "0"
+		}
+
+		branches = append(branches, branch)
+	}
+
+	return branches
+}
+
+// Build the list of branches for the current repo
+func (b *BranchListBuilder) Build() []*Branch {
+	branches := b.obtainBranches()
+
+	reflogBranches := b.obtainReflogBranches()
+
+	// loop through reflog branches. If there is a match, merge them, then remove it from the branches and keep it in the reflog branches
+	branchesWithRecency := make([]*Branch, 0)
+outer:
+	for _, reflogBranch := range reflogBranches {
+		for j, branch := range branches {
+			if branch.Head {
+				continue
+			}
+			if strings.EqualFold(reflogBranch.Name, branch.Name) {
+				branch.Recency = reflogBranch.Recency
+				branchesWithRecency = append(branchesWithRecency, branch)
+				branches = append(branches[0:j], branches[j+1:]...)
+				continue outer
+			}
+		}
+	}
+
+	branches = append(branchesWithRecency, branches...)
+
+	foundHead := false
+	for i, branch := range branches {
+		if branch.Head {
+			foundHead = true
+			branch.Recency = "  *"
+			branches = append(branches[0:i], branches[i+1:]...)
+			branches = append([]*Branch{branch}, branches...)
+			break
+		}
+	}
+	if !foundHead {
+		currentBranchName, currentBranchDisplayName, err := b.GitCommand.CurrentBranchName()
+		if err != nil {
+			panic(err)
+		}
+		branches = append([]*Branch{{Name: currentBranchName, DisplayName: currentBranchDisplayName, Head: true, Recency: "  *"}}, branches...)
+	}
+	return branches
+}
+
+// TODO: only look at the new reflog commits, and otherwise store the recencies in
+// int form against the branch to recalculate the time ago
+func (b *BranchListBuilder) obtainReflogBranches() []*Branch {
+	foundBranchesMap := map[string]bool{}
+	re := regexp.MustCompile(`checkout: moving from ([\S]+) to ([\S]+)`)
+	reflogBranches := make([]*Branch, 0, len(b.ReflogCommits))
+	for _, commit := range b.ReflogCommits {
+		if match := re.FindStringSubmatch(commit.Name); len(match) == 3 {
+			recency := utils.UnixToTimeAgo(commit.UnixTimestamp)
+			for _, branchName := range match[1:] {
+				if !foundBranchesMap[branchName] {
+					foundBranchesMap[branchName] = true
+					reflogBranches = append(reflogBranches, &Branch{
+						Recency: recency,
+						Name:    branchName,
+					})
+				}
+			}
+		}
+	}
+	return reflogBranches
+}

pkg/commands/commit.go

@@ -0,0 +1,37 @@
+package commands
+
+import "fmt"
+
+// Commit : A git commit
+type Commit struct {
+	Sha           string
+	Name          string
+	Status        string // one of "unpushed", "pushed", "merged", "rebasing" or "selected"
+	Action        string // one of "", "pick", "edit", "squash", "reword", "drop", "fixup"
+	Tags          []string
+	ExtraInfo     string // something like 'HEAD -> master, tag: v0.15.2'
+	Author        string
+	UnixTimestamp int64
+
+	// IsMerge tells us whether we're dealing with a merge commit i.e. a commit with two parents
+	IsMerge bool
+}
+
+func (c *Commit) ShortSha() string {
+	if len(c.Sha) < 8 {
+		return c.Sha
+	}
+	return c.Sha[:8]
+}
+
+func (c *Commit) RefName() string {
+	return c.Sha
+}
+
+func (c *Commit) ID() string {
+	return c.RefName()
+}
+
+func (c *Commit) Description() string {
+	return fmt.Sprintf("%s %s", c.Sha[:7], c.Name)
+}

pkg/commands/commit_file.go

@@ -0,0 +1,21 @@
+package commands
+
+// CommitFile : A git commit file
+type CommitFile struct {
+	// Parent is the identifier of the parent object e.g. a commit SHA if this commit file is for a commit, or a stash entry ref like 'stash@{1}'
+	Parent string
+	Name   string
+
+	// PatchStatus tells us whether the file has been wholly or partially added to a patch. We might want to pull this logic up into the gui package and make it a map like we do with cherry picked commits
+	PatchStatus int // one of 'WHOLE' 'PART' 'NONE'
+
+	ChangeStatus string // e.g. 'A' for added or 'M' for modified. This is based on the result from git diff --name-status
+}
+
+func (f *CommitFile) ID() string {
+	return f.Name
+}
+
+func (f *CommitFile) Description() string {
+	return f.Name
+}

pkg/commands/commit_list_builder.go

@@ -0,0 +1,379 @@
+package commands
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"github.com/fatih/color"
+	"github.com/jesseduffield/lazygit/pkg/i18n"
+	"github.com/sirupsen/logrus"
+)
+
+// context:
+// here we get the commits from git log but format them to show whether they're
+// unpushed/pushed/merged into the base branch or not, or if they're yet to
+// be processed as part of a rebase (these won't appear in git log but we
+// grab them from the rebase-related files in the .git directory to show them
+
+// if we find out we need to use one of these functions in the git.go file, we
+// can just pull them out of here and put them there and then call them from in here
+
+const SEPARATION_CHAR = "|"
+
+// CommitListBuilder returns a list of Branch objects for the current repo
+type CommitListBuilder struct {
+	Log        *logrus.Entry
+	GitCommand *GitCommand
+	OSCommand  *OSCommand
+	Tr         *i18n.Localizer
+}
+
+// NewCommitListBuilder builds a new commit list builder
+func NewCommitListBuilder(log *logrus.Entry, gitCommand *GitCommand, osCommand *OSCommand, tr *i18n.Localizer) *CommitListBuilder {
+	return &CommitListBuilder{
+		Log:        log,
+		GitCommand: gitCommand,
+		OSCommand:  osCommand,
+		Tr:         tr,
+	}
+}
+
+// extractCommitFromLine takes a line from a git log and extracts the sha, message, date, and tag if present
+// then puts them into a commit object
+// example input:
+// 8ad01fe32fcc20f07bc6693f87aa4977c327f1e1|10 hours ago|Jesse Duffield| (HEAD -> master, tag: v0.15.2)|refresh commits when adding a tag
+func (c *CommitListBuilder) extractCommitFromLine(line string) *Commit {
+	split := strings.Split(line, SEPARATION_CHAR)
+
+	sha := split[0]
+	unixTimestamp := split[1]
+	author := split[2]
+	extraInfo := strings.TrimSpace(split[3])
+	parentHashes := split[4]
+
+	message := strings.Join(split[5:], SEPARATION_CHAR)
+	tags := []string{}
+
+	if extraInfo != "" {
+		re := regexp.MustCompile(`tag: ([^,\)]+)`)
+		tagMatch := re.FindStringSubmatch(extraInfo)
+		if len(tagMatch) > 1 {
+			tags = append(tags, tagMatch[1])
+		}
+	}
+
+	unitTimestampInt, _ := strconv.Atoi(unixTimestamp)
+
+	// Any commit with multiple parents is a merge commit.
+	// If there's a space then it means there must be more than one parent hash
+	isMerge := strings.Contains(parentHashes, " ")
+
+	return &Commit{
+		Sha:           sha,
+		Name:          message,
+		Tags:          tags,
+		ExtraInfo:     extraInfo,
+		UnixTimestamp: int64(unitTimestampInt),
+		Author:        author,
+		IsMerge:       isMerge,
+	}
+}
+
+type GetCommitsOptions struct {
+	Limit                bool
+	FilterPath           string
+	IncludeRebaseCommits bool
+	RefName              string // e.g. "HEAD" or "my_branch"
+}
+
+func (c *CommitListBuilder) MergeRebasingCommits(commits []*Commit) ([]*Commit, error) {
+	// chances are we have as many commits as last time so we'll set the capacity to be the old length
+	result := make([]*Commit, 0, len(commits))
+	for i, commit := range commits {
+		if commit.Status != "rebasing" { // removing the existing rebase commits so we can add the refreshed ones
+			result = append(result, commits[i:]...)
+			break
+		}
+	}
+
+	rebaseMode, err := c.GitCommand.RebaseMode()
+	if err != nil {
+		return nil, err
+	}
+
+	if rebaseMode == "" {
+		// not in rebase mode so return original commits
+		return result, nil
+	}
+
+	rebasingCommits, err := c.getRebasingCommits(rebaseMode)
+	if err != nil {
+		return nil, err
+	}
+	if len(rebasingCommits) > 0 {
+		result = append(rebasingCommits, result...)
+	}
+
+	return result, nil
+}
+
+// GetCommits obtains the commits of the current branch
+func (c *CommitListBuilder) GetCommits(opts GetCommitsOptions) ([]*Commit, error) {
+	commits := []*Commit{}
+	var rebasingCommits []*Commit
+	rebaseMode, err := c.GitCommand.RebaseMode()
+	if err != nil {
+		return nil, err
+	}
+
+	if opts.IncludeRebaseCommits && opts.FilterPath == "" {
+		var err error
+		rebasingCommits, err = c.MergeRebasingCommits(commits)
+		if err != nil {
+			return nil, err
+		}
+		commits = append(commits, rebasingCommits...)
+	}
+
+	passedFirstPushedCommit := false
+	firstPushedCommit, err := c.getFirstPushedCommit(opts.RefName)
+	if err != nil {
+		// must have no upstream branch so we'll consider everything as pushed
+		passedFirstPushedCommit = true
+	}
+
+	cmd := c.getLogCmd(opts)
+
+	err = RunLineOutputCmd(cmd, func(line string) (bool, error) {
+		if strings.Split(line, " ")[0] != "gpg:" {
+			commit := c.extractCommitFromLine(line)
+			if commit.Sha == firstPushedCommit {
+				passedFirstPushedCommit = true
+			}
+			commit.Status = map[bool]string{true: "unpushed", false: "pushed"}[!passedFirstPushedCommit]
+			commits = append(commits, commit)
+		}
+		return false, nil
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	if rebaseMode != "" {
+		currentCommit := commits[len(rebasingCommits)]
+		blue := color.New(color.FgYellow)
+		youAreHere := blue.Sprintf("<-- %s ---", c.Tr.SLocalize("YouAreHere"))
+		currentCommit.Name = fmt.Sprintf("%s %s", youAreHere, currentCommit.Name)
+	}
+
+	commits, err = c.setCommitMergedStatuses(opts.RefName, commits)
+	if err != nil {
+		return nil, err
+	}
+
+	return commits, nil
+}
+
+// getRebasingCommits obtains the commits that we're in the process of rebasing
+func (c *CommitListBuilder) getRebasingCommits(rebaseMode string) ([]*Commit, error) {
+	switch rebaseMode {
+	case "normal":
+		return c.getNormalRebasingCommits()
+	case "interactive":
+		return c.getInteractiveRebasingCommits()
+	default:
+		return nil, nil
+	}
+}
+
+func (c *CommitListBuilder) getNormalRebasingCommits() ([]*Commit, error) {
+	rewrittenCount := 0
+	bytesContent, err := ioutil.ReadFile(fmt.Sprintf("%s/rebase-apply/rewritten", c.GitCommand.DotGitDir))
+	if err == nil {
+		content := string(bytesContent)
+		rewrittenCount = len(strings.Split(content, "\n"))
+	}
+
+	// we know we're rebasing, so lets get all the files whose names have numbers
+	commits := []*Commit{}
+	err = filepath.Walk(fmt.Sprintf("%s/rebase-apply", c.GitCommand.DotGitDir), func(path string, f os.FileInfo, err error) error {
+		if rewrittenCount > 0 {
+			rewrittenCount--
+			return nil
+		}
+		if err != nil {
+			return err
+		}
+		re := regexp.MustCompile(`^\d+$`)
+		if !re.MatchString(f.Name()) {
+			return nil
+		}
+		bytesContent, err := ioutil.ReadFile(path)
+		if err != nil {
+			return err
+		}
+		content := string(bytesContent)
+		commit, err := c.commitFromPatch(content)
+		if err != nil {
+			return err
+		}
+		commits = append([]*Commit{commit}, commits...)
+		return nil
+	})
+	if err != nil {
+		return nil, err
+	}
+
+	return commits, nil
+}
+
+// git-rebase-todo example:
+// pick ac446ae94ee560bdb8d1d057278657b251aaef17 ac446ae
+// pick afb893148791a2fbd8091aeb81deba4930c73031 afb8931
+
+// git-rebase-todo.backup example:
+// pick 49cbba374296938ea86bbd4bf4fee2f6ba5cccf6 third commit on master
+// pick ac446ae94ee560bdb8d1d057278657b251aaef17 blah  commit on master
+// pick afb893148791a2fbd8091aeb81deba4930c73031 fourth commit on master
+
+// getInteractiveRebasingCommits takes our git-rebase-todo and our git-rebase-todo.backup files
+// and extracts out the sha and names of commits that we still have to go
+// in the rebase:
+func (c *CommitListBuilder) getInteractiveRebasingCommits() ([]*Commit, error) {
+	bytesContent, err := ioutil.ReadFile(fmt.Sprintf("%s/rebase-merge/git-rebase-todo", c.GitCommand.DotGitDir))
+	if err != nil {
+		c.Log.Info(fmt.Sprintf("error occurred reading git-rebase-todo: %s", err.Error()))
+		// we assume an error means the file doesn't exist so we just return
+		return nil, nil
+	}
+
+	commits := []*Commit{}
+	lines := strings.Split(string(bytesContent), "\n")
+	for _, line := range lines {
+		if line == "" || line == "noop" {
+			return commits, nil
+		}
+		if strings.HasPrefix(line, "#") {
+			continue
+		}
+		splitLine := strings.Split(line, " ")
+		commits = append([]*Commit{{
+			Sha:    splitLine[1],
+			Name:   strings.Join(splitLine[2:], " "),
+			Status: "rebasing",
+			Action: splitLine[0],
+		}}, commits...)
+	}
+
+	return commits, nil
+}
+
+// assuming the file starts like this:
+// From e93d4193e6dd45ca9cf3a5a273d7ba6cd8b8fb20 Mon Sep 17 00:00:00 2001
+// From: Lazygit Tester <test@example.com>
+// Date: Wed, 5 Dec 2018 21:03:23 +1100
+// Subject: second commit on master
+func (c *CommitListBuilder) commitFromPatch(content string) (*Commit, error) {
+	lines := strings.Split(content, "\n")
+	sha := strings.Split(lines[0], " ")[1]
+	name := strings.TrimPrefix(lines[3], "Subject: ")
+	return &Commit{
+		Sha:    sha,
+		Name:   name,
+		Status: "rebasing",
+	}, nil
+}
+
+func (c *CommitListBuilder) setCommitMergedStatuses(refName string, commits []*Commit) ([]*Commit, error) {
+	ancestor, err := c.getMergeBase(refName)
+	if err != nil {
+		return nil, err
+	}
+	if ancestor == "" {
+		return commits, nil
+	}
+	passedAncestor := false
+	for i, commit := range commits {
+		if strings.HasPrefix(ancestor, commit.Sha) {
+			passedAncestor = true
+		}
+		if commit.Status != "pushed" {
+			continue
+		}
+		if passedAncestor {
+			commits[i].Status = "merged"
+		}
+	}
+	return commits, nil
+}
+
+func (c *CommitListBuilder) getMergeBase(refName string) (string, error) {
+	currentBranch, _, err := c.GitCommand.CurrentBranchName()
+	if err != nil {
+		return "", err
+	}
+
+	baseBranch := "master"
+	if strings.HasPrefix(currentBranch, "feature/") {
+		baseBranch = "develop"
+	}
+
+	// swallowing error because it's not a big deal; probably because there are no commits yet
+	output, _ := c.OSCommand.RunCommandWithOutput("git merge-base %s %s", refName, baseBranch)
+	return ignoringWarnings(output), nil
+}
+
+func ignoringWarnings(commandOutput string) string {
+	trimmedOutput := strings.TrimSpace(commandOutput)
+	split := strings.Split(trimmedOutput, "\n")
+	// need to get last line in case the first line is a warning about how the error is ambiguous.
+	// At some point we should find a way to make it unambiguous
+	lastLine := split[len(split)-1]
+
+	return lastLine
+}
+
+// getFirstPushedCommit returns the first commit SHA which has been pushed to the ref's upstream.
+// all commits above this are deemed unpushed and marked as such.
+func (c *CommitListBuilder) getFirstPushedCommit(refName string) (string, error) {
+	output, err := c.OSCommand.RunCommandWithOutput("git merge-base %s %s@{u}", refName, refName)
+	if err != nil {
+		return "", err
+	}
+
+	return ignoringWarnings(output), nil
+}
+
+// getLog gets the git log.
+func (c *CommitListBuilder) getLogCmd(opts GetCommitsOptions) *exec.Cmd {
+	limitFlag := ""
+	if opts.Limit {
+		limitFlag = "-300"
+	}
+
+	filterFlag := ""
+	if opts.FilterPath != "" {
+		filterFlag = fmt.Sprintf(" --follow -- %s", c.OSCommand.Quote(opts.FilterPath))
+	}
+
+	return c.OSCommand.ExecutableFromString(
+		fmt.Sprintf(
+			"git log %s --oneline --pretty=format:\"%%H%s%%at%s%%aN%s%%d%s%%p%s%%s\" %s --abbrev=%d --date=unix %s",
+			opts.RefName,
+			SEPARATION_CHAR,
+			SEPARATION_CHAR,
+			SEPARATION_CHAR,
+			SEPARATION_CHAR,
+			SEPARATION_CHAR,
+			limitFlag,
+			20,
+			filterFlag,
+		),
+	)
+}

pkg/commands/commit_list_builder_test.go

@@ -0,0 +1,111 @@
+package commands
+
+import (
+	"os/exec"
+	"testing"
+
+	"github.com/jesseduffield/lazygit/pkg/i18n"
+	"github.com/stretchr/testify/assert"
+)
+
+// NewDummyCommitListBuilder creates a new dummy CommitListBuilder for testing
+func NewDummyCommitListBuilder() *CommitListBuilder {
+	osCommand := NewDummyOSCommand()
+
+	return &CommitListBuilder{
+		Log:        NewDummyLog(),
+		GitCommand: NewDummyGitCommandWithOSCommand(osCommand),
+		OSCommand:  osCommand,
+		Tr:         i18n.NewLocalizer(NewDummyLog()),
+	}
+}
+
+// TestCommitListBuilderGetMergeBase is a function.
+func TestCommitListBuilderGetMergeBase(t *testing.T) {
+	type scenario struct {
+		testName string
+		command  func(string, ...string) *exec.Cmd
+		test     func(string, error)
+	}
+
+	scenarios := []scenario{
+		{
+			"swallows an error if the call to merge-base returns an error",
+			func(cmd string, args ...string) *exec.Cmd {
+				assert.EqualValues(t, "git", cmd)
+
+				switch args[0] {
+				case "symbolic-ref":
+					assert.EqualValues(t, []string{"symbolic-ref", "--short", "HEAD"}, args)
+					return exec.Command("echo", "master")
+				case "merge-base":
+					assert.EqualValues(t, []string{"merge-base", "HEAD", "master"}, args)
+					return exec.Command("test")
+				}
+				return nil
+			},
+			func(output string, err error) {
+				assert.NoError(t, err)
+				assert.EqualValues(t, "", output)
+			},
+		},
+		{
+			"returns the commit when master",
+			func(cmd string, args ...string) *exec.Cmd {
+				assert.EqualValues(t, "git", cmd)
+
+				switch args[0] {
+				case "symbolic-ref":
+					assert.EqualValues(t, []string{"symbolic-ref", "--short", "HEAD"}, args)
+					return exec.Command("echo", "master")
+				case "merge-base":
+					assert.EqualValues(t, []string{"merge-base", "HEAD", "master"}, args)
+					return exec.Command("echo", "blah")
+				}
+				return nil
+			},
+			func(output string, err error) {
+				assert.NoError(t, err)
+				assert.Equal(t, "blah", output)
+			},
+		},
+		{
+			"checks against develop when a feature branch",
+			func(cmd string, args ...string) *exec.Cmd {
+				assert.EqualValues(t, "git", cmd)
+
+				switch args[0] {
+				case "symbolic-ref":
+					assert.EqualValues(t, []string{"symbolic-ref", "--short", "HEAD"}, args)
+					return exec.Command("echo", "feature/test")
+				case "merge-base":
+					assert.EqualValues(t, []string{"merge-base", "HEAD", "develop"}, args)
+					return exec.Command("echo", "blah")
+				}
+				return nil
+			},
+			func(output string, err error) {
+				assert.NoError(t, err)
+				assert.Equal(t, "blah", output)
+			},
+		},
+		{
+			"bubbles up error if there is one",
+			func(cmd string, args ...string) *exec.Cmd {
+				return exec.Command("test")
+			},
+			func(output string, err error) {
+				assert.Error(t, err)
+				assert.Equal(t, "", output)
+			},
+		},
+	}
+
+	for _, s := range scenarios {
+		t.Run(s.testName, func(t *testing.T) {
+			c := NewDummyCommitListBuilder()
+			c.OSCommand.SetCommand(s.command)
+			s.test(c.getMergeBase("HEAD"))
+		})
+	}
+}

pkg/commands/dummies.go

@@ -0,0 +1,63 @@
+package commands
+
+import (
+	"io/ioutil"
+
+	"github.com/jesseduffield/lazygit/pkg/config"
+	"github.com/jesseduffield/lazygit/pkg/i18n"
+	"github.com/sirupsen/logrus"
+	"github.com/spf13/viper"
+	yaml "gopkg.in/yaml.v2"
+)
+
+// This file exports dummy constructors for use by tests in other packages
+
+// NewDummyOSCommand creates a new dummy OSCommand for testing
+func NewDummyOSCommand() *OSCommand {
+	return NewOSCommand(NewDummyLog(), NewDummyAppConfig())
+}
+
+// NewDummyAppConfig creates a new dummy AppConfig for testing
+func NewDummyAppConfig() *config.AppConfig {
+	userConfig := viper.New()
+	userConfig.SetConfigType("yaml")
+	if err := config.LoadDefaults(userConfig, config.GetDefaultConfig()); err != nil {
+		panic(err)
+	}
+	appConfig := &config.AppConfig{
+		Name:        "lazygit",
+		Version:     "unversioned",
+		Commit:      "",
+		BuildDate:   "",
+		Debug:       false,
+		BuildSource: "",
+		UserConfig:  userConfig,
+	}
+	_ = yaml.Unmarshal([]byte{}, appConfig.AppState)
+	return appConfig
+}
+
+// NewDummyLog creates a new dummy Log for testing
+func NewDummyLog() *logrus.Entry {
+	log := logrus.New()
+	log.Out = ioutil.Discard
+	return log.WithField("test", "test")
+}
+
+// NewDummyGitCommand creates a new dummy GitCommand for testing
+func NewDummyGitCommand() *GitCommand {
+	return NewDummyGitCommandWithOSCommand(NewDummyOSCommand())
+}
+
+// NewDummyGitCommandWithOSCommand creates a new dummy GitCommand for testing
+func NewDummyGitCommandWithOSCommand(osCommand *OSCommand) *GitCommand {
+	return &GitCommand{
+		Log:                NewDummyLog(),
+		OSCommand:          osCommand,
+		Tr:                 i18n.NewLocalizer(NewDummyLog()),
+		Config:             NewDummyAppConfig(),
+		getGlobalGitConfig: func(string) (string, error) { return "", nil },
+		getLocalGitConfig:  func(string) (string, error) { return "", nil },
+		removeFile:         func(string) error { return nil },
+	}
+}

pkg/commands/errors.go

@@ -0,0 +1,14 @@
+package commands
+
+import "github.com/go-errors/errors"
+
+// WrapError wraps an error for the sake of showing a stack trace at the top level
+// the go-errors package, for some reason, does not return nil when you try to wrap
+// a non-error, so we're just doing it here
+func WrapError(err error) error {
+	if err == nil {
+		return err
+	}
+
+	return errors.Wrap(err, 0)
+}

pkg/commands/exec_live_default.go

@@ -0,0 +1,95 @@
+// +build !windows
+
+package commands
+
+import (
+	"bufio"
+	"bytes"
+	"strings"
+	"unicode/utf8"
+
+	"github.com/go-errors/errors"
+
+	"github.com/creack/pty"
+)
+
+// RunCommandWithOutputLiveWrapper runs a command and return every word that gets written in stdout
+// Output is a function that executes by every word that gets read by bufio
+// As return of output you need to give a string that will be written to stdin
+// NOTE: If the return data is empty it won't written anything to stdin
+func RunCommandWithOutputLiveWrapper(c *OSCommand, command string, output func(string) string) error {
+	cmd := c.ExecutableFromString(command)
+	cmd.Env = append(cmd.Env, "LANG=en_US.UTF-8", "LC_ALL=en_US.UTF-8")
+
+	var stderr bytes.Buffer
+	cmd.Stderr = &stderr
+
+	ptmx, err := pty.Start(cmd)
+
+	if err != nil {
+		return err
+	}
+
+	go func() {
+		scanner := bufio.NewScanner(ptmx)
+		scanner.Split(scanWordsWithNewLines)
+		for scanner.Scan() {
+			toOutput := strings.Trim(scanner.Text(), " ")
+			_, _ = ptmx.WriteString(output(toOutput))
+		}
+	}()
+
+	err = cmd.Wait()
+	ptmx.Close()
+	if err != nil {
+		return errors.New(stderr.String())
+	}
+
+	return nil
+}
+
+// scanWordsWithNewLines is a copy of bufio.ScanWords but this also captures new lines
+// For specific comments about this function take a look at: bufio.ScanWords
+func scanWordsWithNewLines(data []byte, atEOF bool) (advance int, token []byte, err error) {
+	start := 0
+	for width := 0; start < len(data); start += width {
+		var r rune
+		r, width = utf8.DecodeRune(data[start:])
+		if !isSpace(r) {
+			break
+		}
+	}
+	for width, i := 0, start; i < len(data); i += width {
+		var r rune
+		r, width = utf8.DecodeRune(data[i:])
+		if isSpace(r) {
+			return i + width, data[start:i], nil
+		}
+	}
+	if atEOF && len(data) > start {
+		return len(data), data[start:], nil
+	}
+	return start, nil, nil
+}
+
+// isSpace is also copied from the bufio package and has been modified to also captures new lines
+// For specific comments about this function take a look at: bufio.isSpace
+func isSpace(r rune) bool {
+	if r <= '\u00FF' {
+		switch r {
+		case ' ', '\t', '\v', '\f':
+			return true
+		case '\u0085', '\u00A0':
+			return true
+		}
+		return false
+	}
+	if '\u2000' <= r && r <= '\u200a' {
+		return true
+	}
+	switch r {
+	case '\u1680', '\u2028', '\u2029', '\u202f', '\u205f', '\u3000':
+		return true
+	}
+	return false
+}

pkg/commands/exec_live_win.go

@@ -0,0 +1,9 @@
+// +build windows
+
+package commands
+
+// RunCommandWithOutputLiveWrapper runs a command live but because of windows compatibility this command can't be ran there
+// TODO: Remove this hack and replace it with a proper way to run commands live on windows
+func RunCommandWithOutputLiveWrapper(c *OSCommand, command string, output func(string) string) error {
+	return c.RunCommand(command)
+}

pkg/commands/file.go

@@ -0,0 +1,46 @@
+package commands
+
+import (
+	"strings"
+
+	"github.com/jesseduffield/lazygit/pkg/utils"
+)
+
+// File : A file from git status
+// duplicating this for now
+type File struct {
+	Name                    string
+	HasStagedChanges        bool
+	HasUnstagedChanges      bool
+	Tracked                 bool
+	Deleted                 bool
+	HasMergeConflicts       bool
+	HasInlineMergeConflicts bool
+	DisplayString           string
+	Type                    string // one of 'file', 'directory', and 'other'
+	ShortStatus             string // e.g. 'AD', ' A', 'M ', '??'
+}
+
+const RENAME_SEPARATOR = " -> "
+
+func (f *File) IsRename() bool {
+	return strings.Contains(f.Name, RENAME_SEPARATOR)
+}
+
+// Names returns an array containing just the filename, or in the case of a rename, the after filename and the before filename
+func (f *File) Names() []string {
+	return strings.Split(f.Name, RENAME_SEPARATOR)
+}
+
+// returns true if the file names are the same or if a a file rename includes the filename of the other
+func (f *File) Matches(f2 *File) bool {
+	return utils.StringArraysOverlap(f.Names(), f2.Names())
+}
+
+func (f *File) ID() string {
+	return f.Name
+}
+
+func (f *File) Description() string {
+	return f.Name
+}

pkg/commands/git_structs.go

@@ -0,0 +1,9 @@
+package commands
+
+// Conflict : A git conflict with a start middle and end corresponding to line
+// numbers in the file where the conflict bars appear
+type Conflict struct {
+	Start  int
+	Middle int
+	End    int
+}

pkg/commands/loading_remotes.go

@@ -0,0 +1,58 @@
+package commands
+
+import (
+	"fmt"
+	"regexp"
+	"sort"
+	"strings"
+)
+
+func (c *GitCommand) GetRemotes() ([]*Remote, error) {
+	// get remote branches
+	unescaped := "git branch -r"
+	remoteBranchesStr, err := c.OSCommand.RunCommandWithOutput(unescaped)
+	if err != nil {
+		return nil, err
+	}
+
+	goGitRemotes, err := c.Repo.Remotes()
+	if err != nil {
+		return nil, err
+	}
+
+	// first step is to get our remotes from go-git
+	remotes := make([]*Remote, len(goGitRemotes))
+	for i, goGitRemote := range goGitRemotes {
+		remoteName := goGitRemote.Config().Name
+
+		re := regexp.MustCompile(fmt.Sprintf(`%s\/([\S]+)`, remoteName))
+		matches := re.FindAllStringSubmatch(remoteBranchesStr, -1)
+		branches := make([]*RemoteBranch, len(matches))
+		for j, match := range matches {
+			branches[j] = &RemoteBranch{
+				Name:       match[1],
+				RemoteName: remoteName,
+			}
+		}
+
+		remotes[i] = &Remote{
+			Name:     goGitRemote.Config().Name,
+			Urls:     goGitRemote.Config().URLs,
+			Branches: branches,
+		}
+	}
+
+	// now lets sort our remotes by name alphabetically
+	sort.Slice(remotes, func(i, j int) bool {
+		// we want origin at the top because we'll be most likely to want it
+		if remotes[i].Name == "origin" {
+			return true
+		}
+		if remotes[j].Name == "origin" {
+			return false
+		}
+		return strings.ToLower(remotes[i].Name) < strings.ToLower(remotes[j].Name)
+	})
+
+	return remotes, nil
+}

pkg/commands/loading_tags.go

@@ -0,0 +1,87 @@
+package commands
+
+import (
+	"regexp"
+	"sort"
+	"strconv"
+	"strings"
+
+	"github.com/jesseduffield/lazygit/pkg/utils"
+)
+
+const semverRegex = `v?((\d+\.?)+)([^\d]?.*)`
+
+func convertToInt(s string) int {
+	i, err := strconv.Atoi(s)
+	if err != nil {
+		return 0
+	}
+	return i
+}
+
+func (c *GitCommand) GetTags() ([]*Tag, error) {
+	// get remote branches
+	remoteBranchesStr, err := c.OSCommand.RunCommandWithOutput(`git tag --list`)
+	if err != nil {
+		return nil, err
+	}
+
+	content := utils.TrimTrailingNewline(remoteBranchesStr)
+	if content == "" {
+		return nil, nil
+	}
+
+	split := strings.Split(content, "\n")
+
+	// first step is to get our remotes from go-git
+	tags := make([]*Tag, len(split))
+	for i, tagName := range split {
+
+		tags[i] = &Tag{
+			Name: tagName,
+		}
+	}
+
+	// now lets sort our tags by name numerically
+	re := regexp.MustCompile(semverRegex)
+
+	// the reason  this is complicated is because we're both sorting alphabetically
+	// and when we're dealing with semver strings
+	sort.Slice(tags, func(i, j int) bool {
+		a := tags[i].Name
+		b := tags[j].Name
+
+		matchA := re.FindStringSubmatch(a)
+		matchB := re.FindStringSubmatch(b)
+
+		if len(matchA) > 0 && len(matchB) > 0 {
+			numbersA := strings.Split(matchA[1], ".")
+			numbersB := strings.Split(matchB[1], ".")
+			k := 0
+			for {
+				if len(numbersA) == k && len(numbersB) == k {
+					break
+				}
+				if len(numbersA) == k {
+					return true
+				}
+				if len(numbersB) == k {
+					return false
+				}
+				if convertToInt(numbersA[k]) < convertToInt(numbersB[k]) {
+					return true
+				}
+				if convertToInt(numbersA[k]) > convertToInt(numbersB[k]) {
+					return false
+				}
+				k++
+			}
+
+			return strings.ToLower(matchA[3]) < strings.ToLower(matchB[3])
+		}
+
+		return strings.ToLower(a) < strings.ToLower(b)
+	})
+
+	return tags, nil
+}

pkg/commands/os.go

@@ -0,0 +1,480 @@
+package commands
+
+import (
+	"bufio"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"regexp"
+	"strconv"
+	"strings"
+	"sync"
+
+	"github.com/go-errors/errors"
+
+	"github.com/atotto/clipboard"
+	"github.com/jesseduffield/lazygit/pkg/config"
+	"github.com/jesseduffield/lazygit/pkg/utils"
+	"github.com/mgutz/str"
+	"github.com/sirupsen/logrus"
+	gitconfig "github.com/tcnksm/go-gitconfig"
+)
+
+// Platform stores the os state
+type Platform struct {
+	os                   string
+	catCmd               string
+	shell                string
+	shellArg             string
+	escapedQuote         string
+	openCommand          string
+	openLinkCommand      string
+	fallbackEscapedQuote string
+}
+
+// OSCommand holds all the os commands
+type OSCommand struct {
+	Log                *logrus.Entry
+	Platform           *Platform
+	Config             config.AppConfigurer
+	command            func(string, ...string) *exec.Cmd
+	beforeExecuteCmd   func(*exec.Cmd)
+	getGlobalGitConfig func(string) (string, error)
+	getenv             func(string) string
+}
+
+// NewOSCommand os command runner
+func NewOSCommand(log *logrus.Entry, config config.AppConfigurer) *OSCommand {
+	return &OSCommand{
+		Log:                log,
+		Platform:           getPlatform(),
+		Config:             config,
+		command:            exec.Command,
+		beforeExecuteCmd:   func(*exec.Cmd) {},
+		getGlobalGitConfig: gitconfig.Global,
+		getenv:             os.Getenv,
+	}
+}
+
+// SetCommand sets the command function used by the struct.
+// To be used for testing only
+func (c *OSCommand) SetCommand(cmd func(string, ...string) *exec.Cmd) {
+	c.command = cmd
+}
+
+func (c *OSCommand) SetBeforeExecuteCmd(cmd func(*exec.Cmd)) {
+	c.beforeExecuteCmd = cmd
+}
+
+type RunCommandOptions struct {
+	EnvVars []string
+}
+
+func (c *OSCommand) RunCommandWithOutputWithOptions(command string, options RunCommandOptions) (string, error) {
+	c.Log.WithField("command", command).Info("RunCommand")
+	cmd := c.ExecutableFromString(command)
+	cmd.Env = append(cmd.Env, options.EnvVars...)
+	return sanitisedCommandOutput(cmd.CombinedOutput())
+}
+
+func (c *OSCommand) RunCommandWithOptions(command string, options RunCommandOptions) error {
+	_, err := c.RunCommandWithOutputWithOptions(command, options)
+	return err
+}
+
+// RunCommandWithOutput wrapper around commands returning their output and error
+// NOTE: If you don't pass any formatArgs we'll just use the command directly,
+// however there's a bizarre compiler error/warning when you pass in a formatString
+// with a percent sign because it thinks it's supposed to be a formatString when
+// in that case it's not. To get around that error you'll need to define the string
+// in a variable and pass the variable into RunCommandWithOutput.
+func (c *OSCommand) RunCommandWithOutput(formatString string, formatArgs ...interface{}) (string, error) {
+	command := formatString
+	if formatArgs != nil {
+		command = fmt.Sprintf(formatString, formatArgs...)
+	}
+	c.Log.WithField("command", command).Info("RunCommand")
+	cmd := c.ExecutableFromString(command)
+	return sanitisedCommandOutput(cmd.CombinedOutput())
+}
+
+// RunExecutableWithOutput runs an executable file and returns its output
+func (c *OSCommand) RunExecutableWithOutput(cmd *exec.Cmd) (string, error) {
+	c.beforeExecuteCmd(cmd)
+	return sanitisedCommandOutput(cmd.CombinedOutput())
+}
+
+// RunExecutable runs an executable file and returns an error if there was one
+func (c *OSCommand) RunExecutable(cmd *exec.Cmd) error {
+	_, err := c.RunExecutableWithOutput(cmd)
+	return err
+}
+
+// ExecutableFromString takes a string like `git status` and returns an executable command for it
+func (c *OSCommand) ExecutableFromString(commandStr string) *exec.Cmd {
+	splitCmd := str.ToArgv(commandStr)
+	cmd := c.command(splitCmd[0], splitCmd[1:]...)
+	cmd.Env = append(os.Environ(), "GIT_OPTIONAL_LOCKS=0")
+	return cmd
+}
+
+// ShellCommandFromString takes a string like `git commit` and returns an executable shell command for it
+func (c *OSCommand) ShellCommandFromString(commandStr string) *exec.Cmd {
+	quotedCommand := ""
+	// Windows does not seem to like quotes around the command
+	if c.Platform.os == "windows" {
+		quotedCommand = commandStr
+	} else {
+		quotedCommand = strconv.Quote(commandStr)
+	}
+
+	shellCommand := fmt.Sprintf("%s %s %s", c.Platform.shell, c.Platform.shellArg, quotedCommand)
+	return c.ExecutableFromString(shellCommand)
+}
+
+// RunCommandWithOutputLive runs RunCommandWithOutputLiveWrapper
+func (c *OSCommand) RunCommandWithOutputLive(command string, output func(string) string) error {
+	return RunCommandWithOutputLiveWrapper(c, command, output)
+}
+
+// DetectUnamePass detect a username / password question in a command
+// promptUserForCredential is a function that gets executed when this function detect you need to fillin a password
+// The promptUserForCredential argument will be "username" or "password" and expects the user's password or username back
+func (c *OSCommand) DetectUnamePass(command string, promptUserForCredential func(string) string) error {
+	ttyText := ""
+	errMessage := c.RunCommandWithOutputLive(command, func(word string) string {
+		ttyText = ttyText + " " + word
+
+		prompts := map[string]string{
+			`.+'s password:`:         "password",
+			`Password\s*for\s*'.+':`: "password",
+			`Username\s*for\s*'.+':`: "username",
+		}
+
+		for pattern, askFor := range prompts {
+			if match, _ := regexp.MatchString(pattern, ttyText); match {
+				ttyText = ""
+				return promptUserForCredential(askFor)
+			}
+		}
+
+		return ""
+	})
+	return errMessage
+}
+
+// RunCommand runs a command and just returns the error
+func (c *OSCommand) RunCommand(formatString string, formatArgs ...interface{}) error {
+	_, err := c.RunCommandWithOutput(formatString, formatArgs...)
+	return err
+}
+
+// FileType tells us if the file is a file, directory or other
+func (c *OSCommand) FileType(path string) string {
+	fileInfo, err := os.Stat(path)
+	if err != nil {
+		return "other"
+	}
+	if fileInfo.IsDir() {
+		return "directory"
+	}
+	return "file"
+}
+
+// RunDirectCommand wrapper around direct commands
+func (c *OSCommand) RunDirectCommand(command string) (string, error) {
+	c.Log.WithField("command", command).Info("RunDirectCommand")
+
+	return sanitisedCommandOutput(
+		c.command(c.Platform.shell, c.Platform.shellArg, command).
+			CombinedOutput(),
+	)
+}
+
+func sanitisedCommandOutput(output []byte, err error) (string, error) {
+	outputString := string(output)
+	if err != nil {
+		// errors like 'exit status 1' are not very useful so we'll create an error
+		// from the combined output
+		if outputString == "" {
+			return "", WrapError(err)
+		}
+		return outputString, errors.New(outputString)
+	}
+	return outputString, nil
+}
+
+// OpenFile opens a file with the given
+func (c *OSCommand) OpenFile(filename string) error {
+	commandTemplate := c.Config.GetUserConfig().GetString("os.openCommand")
+	templateValues := map[string]string{
+		"filename": c.Quote(filename),
+	}
+
+	command := utils.ResolvePlaceholderString(commandTemplate, templateValues)
+	err := c.RunCommand(command)
+	return err
+}
+
+// OpenLink opens a file with the given
+func (c *OSCommand) OpenLink(link string) error {
+	commandTemplate := c.Config.GetUserConfig().GetString("os.openLinkCommand")
+	templateValues := map[string]string{
+		"link": c.Quote(link),
+	}
+
+	command := utils.ResolvePlaceholderString(commandTemplate, templateValues)
+	err := c.RunCommand(command)
+	return err
+}
+
+// EditFile opens a file in a subprocess using whatever editor is available,
+// falling back to core.editor, VISUAL, EDITOR, then vi
+func (c *OSCommand) EditFile(filename string) (*exec.Cmd, error) {
+	editor, _ := c.getGlobalGitConfig("core.editor")
+
+	if editor == "" {
+		editor = c.getenv("VISUAL")
+	}
+	if editor == "" {
+		editor = c.getenv("EDITOR")
+	}
+	if editor == "" {
+		if err := c.RunCommand("which vi"); err == nil {
+			editor = "vi"
+		}
+	}
+	if editor == "" {
+		return nil, errors.New("No editor defined in $VISUAL, $EDITOR, or git config")
+	}
+
+	splitCmd := str.ToArgv(fmt.Sprintf("%s %s", editor, filename))
+
+	return c.PrepareSubProcess(splitCmd[0], splitCmd[1:]...), nil
+}
+
+// PrepareSubProcess iniPrepareSubProcessrocess then tells the Gui to switch to it
+// TODO: see if this needs to exist, given that ExecutableFromString does the same things
+func (c *OSCommand) PrepareSubProcess(cmdName string, commandArgs ...string) *exec.Cmd {
+	cmd := c.command(cmdName, commandArgs...)
+	if cmd != nil {
+		cmd.Env = append(os.Environ(), "GIT_OPTIONAL_LOCKS=0")
+	}
+	return cmd
+}
+
+// Quote wraps a message in platform-specific quotation marks
+func (c *OSCommand) Quote(message string) string {
+	message = strings.Replace(message, "`", "\\`", -1)
+	escapedQuote := c.Platform.escapedQuote
+	if strings.Contains(message, c.Platform.escapedQuote) {
+		escapedQuote = c.Platform.fallbackEscapedQuote
+	}
+	return escapedQuote + message + escapedQuote
+}
+
+// Unquote removes wrapping quotations marks if they are present
+// this is needed for removing quotes from staged filenames with spaces
+func (c *OSCommand) Unquote(message string) string {
+	return strings.Replace(message, `"`, "", -1)
+}
+
+// AppendLineToFile adds a new line in file
+func (c *OSCommand) AppendLineToFile(filename, line string) error {
+	f, err := os.OpenFile(filename, os.O_APPEND|os.O_WRONLY|os.O_CREATE, 0600)
+	if err != nil {
+		return WrapError(err)
+	}
+	defer f.Close()
+
+	_, err = f.WriteString("\n" + line)
+	if err != nil {
+		return WrapError(err)
+	}
+	return nil
+}
+
+// CreateTempFile writes a string to a new temp file and returns the file's name
+func (c *OSCommand) CreateTempFile(filename, content string) (string, error) {
+	tmpfile, err := ioutil.TempFile("", filename)
+	if err != nil {
+		c.Log.Error(err)
+		return "", WrapError(err)
+	}
+
+	if _, err := tmpfile.WriteString(content); err != nil {
+		c.Log.Error(err)
+		return "", WrapError(err)
+	}
+	if err := tmpfile.Close(); err != nil {
+		c.Log.Error(err)
+		return "", WrapError(err)
+	}
+
+	return tmpfile.Name(), nil
+}
+
+// CreateFileWithContent creates a file with the given content
+func (c *OSCommand) CreateFileWithContent(path string, content string) error {
+	if err := os.MkdirAll(filepath.Dir(path), os.ModePerm); err != nil {
+		c.Log.Error(err)
+		return err
+	}
+
+	if err := ioutil.WriteFile(path, []byte(content), 0644); err != nil {
+		c.Log.Error(err)
+		return WrapError(err)
+	}
+
+	return nil
+}
+
+// Remove removes a file or directory at the specified path
+func (c *OSCommand) Remove(filename string) error {
+	err := os.RemoveAll(filename)
+	return WrapError(err)
+}
+
+// FileExists checks whether a file exists at the specified path
+func (c *OSCommand) FileExists(path string) (bool, error) {
+	if _, err := os.Stat(path); err != nil {
+		if os.IsNotExist(err) {
+			return false, nil
+		}
+		return false, err
+	}
+	return true, nil
+}
+
+// RunPreparedCommand takes a pointer to an exec.Cmd and runs it
+// this is useful if you need to give your command some environment variables
+// before running it
+func (c *OSCommand) RunPreparedCommand(cmd *exec.Cmd) error {
+	c.beforeExecuteCmd(cmd)
+	out, err := cmd.CombinedOutput()
+	outString := string(out)
+	c.Log.Info(outString)
+	if err != nil {
+		if len(outString) == 0 {
+			return err
+		}
+		return errors.New(outString)
+	}
+	return nil
+}
+
+// GetLazygitPath returns the path of the currently executed file
+func (c *OSCommand) GetLazygitPath() string {
+	ex, err := os.Executable() // get the executable path for git to use
+	if err != nil {
+		ex = os.Args[0] // fallback to the first call argument if needed
+	}
+	return `"` + filepath.ToSlash(ex) + `"`
+}
+
+// RunCustomCommand returns the pointer to a custom command
+func (c *OSCommand) RunCustomCommand(command string) *exec.Cmd {
+	return c.PrepareSubProcess(c.Platform.shell, c.Platform.shellArg, command)
+}
+
+// PipeCommands runs a heap of commands and pipes their inputs/outputs together like A | B | C
+func (c *OSCommand) PipeCommands(commandStrings ...string) error {
+
+	cmds := make([]*exec.Cmd, len(commandStrings))
+
+	for i, str := range commandStrings {
+		cmds[i] = c.ExecutableFromString(str)
+	}
+
+	for i := 0; i < len(cmds)-1; i++ {
+		stdout, err := cmds[i].StdoutPipe()
+		if err != nil {
+			return err
+		}
+
+		cmds[i+1].Stdin = stdout
+	}
+
+	// keeping this here in case I adapt this code for some other purpose in the future
+	// cmds[len(cmds)-1].Stdout = os.Stdout
+
+	finalErrors := []string{}
+
+	wg := sync.WaitGroup{}
+	wg.Add(len(cmds))
+
+	for _, cmd := range cmds {
+		currentCmd := cmd
+		go func() {
+			stderr, err := currentCmd.StderrPipe()
+			if err != nil {
+				c.Log.Error(err)
+			}
+
+			if err := currentCmd.Start(); err != nil {
+				c.Log.Error(err)
+			}
+
+			if b, err := ioutil.ReadAll(stderr); err == nil {
+				if len(b) > 0 {
+					finalErrors = append(finalErrors, string(b))
+				}
+			}
+
+			if err := currentCmd.Wait(); err != nil {
+				c.Log.Error(err)
+			}
+
+			wg.Done()
+		}()
+	}
+
+	wg.Wait()
+
+	if len(finalErrors) > 0 {
+		return errors.New(strings.Join(finalErrors, "\n"))
+	}
+	return nil
+}
+
+func Kill(cmd *exec.Cmd) error {
+	if cmd.Process == nil {
+		// somebody got to it before we were able to, poor bastard
+		return nil
+	}
+	return cmd.Process.Kill()
+}
+
+func RunLineOutputCmd(cmd *exec.Cmd, onLine func(line string) (bool, error)) error {
+	stdoutPipe, err := cmd.StdoutPipe()
+	if err != nil {
+		return err
+	}
+
+	scanner := bufio.NewScanner(stdoutPipe)
+	scanner.Split(bufio.ScanLines)
+	if err := cmd.Start(); err != nil {
+		return err
+	}
+
+	for scanner.Scan() {
+		line := scanner.Text()
+		stop, err := onLine(line)
+		if err != nil {
+			return err
+		}
+		if stop {
+			cmd.Process.Kill()
+			break
+		}
+	}
+
+	cmd.Wait()
+	return nil
+}
+
+func (c *OSCommand) CopyToClipboard(str string) error {
+	return clipboard.WriteAll(str)
+}

pkg/commands/os_default_platform.go

@@ -0,0 +1,20 @@
+// +build !windows
+
+package commands
+
+import (
+	"runtime"
+)
+
+func getPlatform() *Platform {
+	return &Platform{
+		os:                   runtime.GOOS,
+		catCmd:               "cat",
+		shell:                "bash",
+		shellArg:             "-c",
+		escapedQuote:         "'",
+		openCommand:          "open {{filename}}",
+		openLinkCommand:      "open {{link}}",
+		fallbackEscapedQuote: "\"",
+	}
+}

pkg/commands/os_test.go

@@ -0,0 +1,377 @@
+package commands
+
+import (
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+// TestOSCommandRunCommandWithOutput is a function.
+func TestOSCommandRunCommandWithOutput(t *testing.T) {
+	type scenario struct {
+		command string
+		test    func(string, error)
+	}
+
+	scenarios := []scenario{
+		{
+			"echo -n '123'",
+			func(output string, err error) {
+				assert.NoError(t, err)
+				assert.EqualValues(t, "123", output)
+			},
+		},
+		{
+			"rmdir unexisting-folder",
+			func(output string, err error) {
+				assert.Regexp(t, "rmdir.*unexisting-folder.*", err.Error())
+			},
+		},
+	}
+
+	for _, s := range scenarios {
+		s.test(NewDummyOSCommand().RunCommandWithOutput(s.command))
+	}
+}
+
+// TestOSCommandRunCommand is a function.
+func TestOSCommandRunCommand(t *testing.T) {
+	type scenario struct {
+		command string
+		test    func(error)
+	}
+
+	scenarios := []scenario{
+		{
+			"rmdir unexisting-folder",
+			func(err error) {
+				assert.Regexp(t, "rmdir.*unexisting-folder.*", err.Error())
+			},
+		},
+	}
+
+	for _, s := range scenarios {
+		s.test(NewDummyOSCommand().RunCommand(s.command))
+	}
+}
+
+// TestOSCommandOpenFile is a function.
+func TestOSCommandOpenFile(t *testing.T) {
+	type scenario struct {
+		filename string
+		command  func(string, ...string) *exec.Cmd
+		test     func(error)
+	}
+
+	scenarios := []scenario{
+		{
+			"test",
+			func(name string, arg ...string) *exec.Cmd {
+				return exec.Command("exit", "1")
+			},
+			func(err error) {
+				assert.Error(t, err)
+			},
+		},
+		{
+			"test",
+			func(name string, arg ...string) *exec.Cmd {
+				assert.Equal(t, "open", name)
+				assert.Equal(t, []string{"test"}, arg)
+				return exec.Command("echo")
+			},
+			func(err error) {
+				assert.NoError(t, err)
+			},
+		},
+		{
+			"filename with spaces",
+			func(name string, arg ...string) *exec.Cmd {
+				assert.Equal(t, "open", name)
+				assert.Equal(t, []string{"filename with spaces"}, arg)
+				return exec.Command("echo")
+			},
+			func(err error) {
+				assert.NoError(t, err)
+			},
+		},
+	}
+
+	for _, s := range scenarios {
+		OSCmd := NewDummyOSCommand()
+		OSCmd.command = s.command
+		OSCmd.Config.GetUserConfig().Set("os.openCommand", "open {{filename}}")
+
+		s.test(OSCmd.OpenFile(s.filename))
+	}
+}
+
+// TestOSCommandEditFile is a function.
+func TestOSCommandEditFile(t *testing.T) {
+	type scenario struct {
+		filename           string
+		command            func(string, ...string) *exec.Cmd
+		getenv             func(string) string
+		getGlobalGitConfig func(string) (string, error)
+		test               func(*exec.Cmd, error)
+	}
+
+	scenarios := []scenario{
+		{
+			"test",
+			func(name string, arg ...string) *exec.Cmd {
+				return exec.Command("exit", "1")
+			},
+			func(env string) string {
+				return ""
+			},
+			func(cf string) (string, error) {
+				return "", nil
+			},
+			func(cmd *exec.Cmd, err error) {
+				assert.EqualError(t, err, "No editor defined in $VISUAL, $EDITOR, or git config")
+			},
+		},
+		{
+			"test",
+			func(name string, arg ...string) *exec.Cmd {
+				if name == "which" {
+					return exec.Command("exit", "1")
+				}
+
+				assert.EqualValues(t, "nano", name)
+
+				return nil
+			},
+			func(env string) string {
+				return ""
+			},
+			func(cf string) (string, error) {
+				return "nano", nil
+			},
+			func(cmd *exec.Cmd, err error) {
+				assert.NoError(t, err)
+			},
+		},
+		{
+			"test",
+			func(name string, arg ...string) *exec.Cmd {
+				if name == "which" {
+					return exec.Command("exit", "1")
+				}
+
+				assert.EqualValues(t, "nano", name)
+
+				return nil
+			},
+			func(env string) string {
+				if env == "VISUAL" {
+					return "nano"
+				}
+
+				return ""
+			},
+			func(cf string) (string, error) {
+				return "", nil
+			},
+			func(cmd *exec.Cmd, err error) {
+				assert.NoError(t, err)
+			},
+		},
+		{
+			"test",
+			func(name string, arg ...string) *exec.Cmd {
+				if name == "which" {
+					return exec.Command("exit", "1")
+				}
+
+				assert.EqualValues(t, "emacs", name)
+
+				return nil
+			},
+			func(env string) string {
+				if env == "EDITOR" {
+					return "emacs"
+				}
+
+				return ""
+			},
+			func(cf string) (string, error) {
+				return "", nil
+			},
+			func(cmd *exec.Cmd, err error) {
+				assert.NoError(t, err)
+			},
+		},
+		{
+			"test",
+			func(name string, arg ...string) *exec.Cmd {
+				if name == "which" {
+					return exec.Command("echo")
+				}
+
+				assert.EqualValues(t, "vi", name)
+
+				return nil
+			},
+			func(env string) string {
+				return ""
+			},
+			func(cf string) (string, error) {
+				return "", nil
+			},
+			func(cmd *exec.Cmd, err error) {
+				assert.NoError(t, err)
+			},
+		},
+	}
+
+	for _, s := range scenarios {
+		OSCmd := NewDummyOSCommand()
+		OSCmd.command = s.command
+		OSCmd.getGlobalGitConfig = s.getGlobalGitConfig
+		OSCmd.getenv = s.getenv
+
+		s.test(OSCmd.EditFile(s.filename))
+	}
+}
+
+// TestOSCommandQuote is a function.
+func TestOSCommandQuote(t *testing.T) {
+	osCommand := NewDummyOSCommand()
+
+	actual := osCommand.Quote("hello `test`")
+
+	expected := osCommand.Platform.escapedQuote + "hello \\`test\\`" + osCommand.Platform.escapedQuote
+
+	assert.EqualValues(t, expected, actual)
+}
+
+// TestOSCommandQuoteSingleQuote tests the quote function with ' quotes explicitly for Linux
+func TestOSCommandQuoteSingleQuote(t *testing.T) {
+	osCommand := NewDummyOSCommand()
+
+	osCommand.Platform.os = "linux"
+
+	actual := osCommand.Quote("hello 'test'")
+
+	expected := osCommand.Platform.fallbackEscapedQuote + "hello 'test'" + osCommand.Platform.fallbackEscapedQuote
+
+	assert.EqualValues(t, expected, actual)
+}
+
+// TestOSCommandQuoteDoubleQuote tests the quote function with " quotes explicitly for Linux
+func TestOSCommandQuoteDoubleQuote(t *testing.T) {
+	osCommand := NewDummyOSCommand()
+
+	osCommand.Platform.os = "linux"
+
+	actual := osCommand.Quote(`hello "test"`)
+
+	expected := osCommand.Platform.escapedQuote + "hello \"test\"" + osCommand.Platform.escapedQuote
+
+	assert.EqualValues(t, expected, actual)
+}
+
+// TestOSCommandUnquote is a function.
+func TestOSCommandUnquote(t *testing.T) {
+	osCommand := NewDummyOSCommand()
+
+	actual := osCommand.Unquote(`hello "test"`)
+
+	expected := "hello test"
+
+	assert.EqualValues(t, expected, actual)
+}
+
+// TestOSCommandFileType is a function.
+func TestOSCommandFileType(t *testing.T) {
+	type scenario struct {
+		path  string
+		setup func()
+		test  func(string)
+	}
+
+	scenarios := []scenario{
+		{
+			"testFile",
+			func() {
+				if _, err := os.Create("testFile"); err != nil {
+					panic(err)
+				}
+			},
+			func(output string) {
+				assert.EqualValues(t, "file", output)
+			},
+		},
+		{
+			"file with spaces",
+			func() {
+				if _, err := os.Create("file with spaces"); err != nil {
+					panic(err)
+				}
+			},
+			func(output string) {
+				assert.EqualValues(t, "file", output)
+			},
+		},
+		{
+			"testDirectory",
+			func() {
+				if err := os.Mkdir("testDirectory", 0644); err != nil {
+					panic(err)
+				}
+			},
+			func(output string) {
+				assert.EqualValues(t, "directory", output)
+			},
+		},
+		{
+			"nonExistant",
+			func() {},
+			func(output string) {
+				assert.EqualValues(t, "other", output)
+			},
+		},
+	}
+
+	for _, s := range scenarios {
+		s.setup()
+		s.test(NewDummyOSCommand().FileType(s.path))
+		_ = os.RemoveAll(s.path)
+	}
+}
+
+func TestOSCommandCreateTempFile(t *testing.T) {
+	type scenario struct {
+		testName string
+		filename string
+		content  string
+		test     func(string, error)
+	}
+
+	scenarios := []scenario{
+		{
+			"valid case",
+			"filename",
+			"content",
+			func(path string, err error) {
+				assert.NoError(t, err)
+
+				content, err := ioutil.ReadFile(path)
+				assert.NoError(t, err)
+
+				assert.Equal(t, "content", string(content))
+			},
+		},
+	}
+
+	for _, s := range scenarios {
+		t.Run(s.testName, func(t *testing.T) {
+			s.test(NewDummyOSCommand().CreateTempFile(s.filename, s.content))
+		})
+	}
+}

pkg/commands/os_windows.go

@@ -0,0 +1,12 @@
+package commands
+
+func getPlatform() *Platform {
+	return &Platform{
+		os:                   "windows",
+		catCmd:               "type",
+		shell:                "cmd",
+		shellArg:             "/c",
+		escapedQuote:         `\"`,
+		fallbackEscapedQuote: "\\'",
+	}
+}

pkg/commands/patch/hunk.go

@@ -0,0 +1,142 @@
+package patch
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/jesseduffield/lazygit/pkg/utils"
+)
+
+type PatchHunk struct {
+	FirstLineIdx int
+	oldStart     int
+	newStart     int
+	heading      string
+	bodyLines    []string
+}
+
+func (hunk *PatchHunk) LastLineIdx() int {
+	return hunk.FirstLineIdx + len(hunk.bodyLines)
+}
+
+func newHunk(lines []string, firstLineIdx int) *PatchHunk {
+	header := lines[0]
+	bodyLines := lines[1:]
+
+	oldStart, newStart, heading := headerInfo(header)
+
+	return &PatchHunk{
+		oldStart:     oldStart,
+		newStart:     newStart,
+		heading:      heading,
+		FirstLineIdx: firstLineIdx,
+		bodyLines:    bodyLines,
+	}
+}
+
+func headerInfo(header string) (int, int, string) {
+	match := hunkHeaderRegexp.FindStringSubmatch(header)
+
+	oldStart := utils.MustConvertToInt(match[1])
+	newStart := utils.MustConvertToInt(match[2])
+	heading := match[3]
+
+	return oldStart, newStart, heading
+}
+
+func (hunk *PatchHunk) updatedLines(lineIndices []int, reverse bool) []string {
+	skippedNewlineMessageIndex := -1
+	newLines := []string{}
+
+	lineIdx := hunk.FirstLineIdx
+	for _, line := range hunk.bodyLines {
+		lineIdx++ // incrementing at the start to skip the header line
+		if line == "" {
+			break
+		}
+		isLineSelected := utils.IncludesInt(lineIndices, lineIdx)
+
+		firstChar, content := line[:1], line[1:]
+		transformedFirstChar := transformedFirstChar(firstChar, reverse, isLineSelected)
+
+		if isLineSelected || (transformedFirstChar == "\\" && skippedNewlineMessageIndex != lineIdx) || transformedFirstChar == " " {
+			newLines = append(newLines, transformedFirstChar+content)
+			continue
+		}
+
+		if transformedFirstChar == "+" {
+			// we don't want to include the 'newline at end of file' line if it involves an addition we're not including
+			skippedNewlineMessageIndex = lineIdx + 1
+		}
+	}
+
+	return newLines
+}
+
+func transformedFirstChar(firstChar string, reverse bool, isLineSelected bool) string {
+	if reverse {
+		if !isLineSelected && firstChar == "+" {
+			return " "
+		} else if firstChar == "-" {
+			return "+"
+		} else if firstChar == "+" {
+			return "-"
+		} else {
+			return firstChar
+		}
+	}
+
+	if !isLineSelected && firstChar == "-" {
+		return " "
+	}
+
+	return firstChar
+}
+
+func (hunk *PatchHunk) formatHeader(oldStart int, oldLength int, newStart int, newLength int, heading string) string {
+	return fmt.Sprintf("@@ -%d,%d +%d,%d @@%s\n", oldStart, oldLength, newStart, newLength, heading)
+}
+
+func (hunk *PatchHunk) formatWithChanges(lineIndices []int, reverse bool, startOffset int) (int, string) {
+	bodyLines := hunk.updatedLines(lineIndices, reverse)
+	startOffset, header, ok := hunk.updatedHeader(bodyLines, startOffset, reverse)
+	if !ok {
+		return startOffset, ""
+	}
+	return startOffset, header + strings.Join(bodyLines, "")
+}
+
+func (hunk *PatchHunk) updatedHeader(newBodyLines []string, startOffset int, reverse bool) (int, string, bool) {
+	changeCount := nLinesWithPrefix(newBodyLines, []string{"+", "-"})
+	oldLength := nLinesWithPrefix(newBodyLines, []string{" ", "-"})
+	newLength := nLinesWithPrefix(newBodyLines, []string{"+", " "})
+
+	if changeCount == 0 {
+		// if nothing has changed we just return nothing
+		return startOffset, "", false
+	}
+
+	var oldStart int
+	if reverse {
+		oldStart = hunk.newStart
+	} else {
+		oldStart = hunk.oldStart
+	}
+
+	var newStartOffset int
+	// if the hunk went from zero to positive length, we need to increment the starting point by one
+	// if the hunk went from positive to zero length, we need to decrement the starting point by one
+	if oldLength == 0 {
+		newStartOffset = 1
+	} else if newLength == 0 {
+		newStartOffset = -1
+	} else {
+		newStartOffset = 0
+	}
+
+	newStart := oldStart + startOffset + newStartOffset
+
+	newStartOffset = startOffset + newLength - oldLength
+	formattedHeader := hunk.formatHeader(oldStart, oldLength, newStart, newLength, hunk.heading)
+	return newStartOffset, formattedHeader, true
+}

pkg/commands/patch/patch_manager.go

@@ -0,0 +1,298 @@
+package patch
+
+import (
+	"errors"
+	"sort"
+	"strings"
+
+	"github.com/jesseduffield/lazygit/pkg/utils"
+	"github.com/sirupsen/logrus"
+)
+
+const (
+	// UNSELECTED is for when the commit file has not been added to the patch in any way
+	UNSELECTED = iota
+	// WHOLE is for when you want to add the whole diff of a file to the patch,
+	// including e.g. if it was deleted
+	WHOLE
+	// PART is for when you're only talking about specific lines that have been modified
+	PART
+)
+
+type fileInfo struct {
+	mode                int // one of WHOLE/PART
+	includedLineIndices []int
+	diff                string
+}
+
+type applyPatchFunc func(patch string, flags ...string) error
+type loadFileDiffFunc func(from string, to string, reverse bool, filename string, plain bool) (string, error)
+
+// PatchManager manages the building of a patch for a commit to be applied to another commit (or the working tree, or removed from the current commit). We also support building patches from things like stashes, for which there is less flexibility
+type PatchManager struct {
+	// To is the commit sha if we're dealing with files of a commit, or a stash ref for a stash
+	To      string
+	From    string
+	Reverse bool
+
+	// CanRebase tells us whether we're allowed to modify our commits. CanRebase should be true for commits of the currently checked out branch and false for everything else
+	// TODO: move this out into a proper mode struct in the gui package: it doesn't really belong here
+	CanRebase bool
+
+	// fileInfoMap starts empty but you add files to it as you go along
+	fileInfoMap map[string]*fileInfo
+	Log         *logrus.Entry
+	ApplyPatch  applyPatchFunc
+
+	// LoadFileDiff loads the diff of a file, for a given to (typically a commit SHA)
+	LoadFileDiff loadFileDiffFunc
+}
+
+// NewPatchManager returns a new PatchManager
+func NewPatchManager(log *logrus.Entry, applyPatch applyPatchFunc, loadFileDiff loadFileDiffFunc) *PatchManager {
+	return &PatchManager{
+		Log:          log,
+		ApplyPatch:   applyPatch,
+		LoadFileDiff: loadFileDiff,
+	}
+}
+
+// NewPatchManager returns a new PatchManager
+func (p *PatchManager) Start(from, to string, reverse bool, canRebase bool) {
+	p.To = to
+	p.From = from
+	p.Reverse = reverse
+	p.CanRebase = canRebase
+	p.fileInfoMap = map[string]*fileInfo{}
+}
+
+func (p *PatchManager) addFileWhole(info *fileInfo) {
+	info.mode = WHOLE
+	lineCount := len(strings.Split(info.diff, "\n"))
+	info.includedLineIndices = make([]int, lineCount)
+	// add every line index
+	for i := 0; i < lineCount; i++ {
+		info.includedLineIndices[i] = i
+	}
+}
+
+func (p *PatchManager) removeFile(info *fileInfo) {
+	info.mode = UNSELECTED
+	info.includedLineIndices = nil
+}
+
+func (p *PatchManager) ToggleFileWhole(filename string) error {
+	info, err := p.getFileInfo(filename)
+	if err != nil {
+		return err
+	}
+	switch info.mode {
+	case UNSELECTED, PART:
+		p.addFileWhole(info)
+	case WHOLE:
+		p.removeFile(info)
+	default:
+		return errors.New("unknown file mode")
+	}
+
+	return nil
+}
+
+func getIndicesForRange(first, last int) []int {
+	indices := []int{}
+	for i := first; i <= last; i++ {
+		indices = append(indices, i)
+	}
+	return indices
+}
+
+func (p *PatchManager) getFileInfo(filename string) (*fileInfo, error) {
+	info, ok := p.fileInfoMap[filename]
+	if ok {
+		return info, nil
+	}
+
+	diff, err := p.LoadFileDiff(p.From, p.To, p.Reverse, filename, true)
+	if err != nil {
+		return nil, err
+	}
+	info = &fileInfo{
+		mode: UNSELECTED,
+		diff: diff,
+	}
+
+	p.fileInfoMap[filename] = info
+
+	return info, nil
+}
+
+func (p *PatchManager) AddFileLineRange(filename string, firstLineIdx, lastLineIdx int) error {
+	info, err := p.getFileInfo(filename)
+	if err != nil {
+		return err
+	}
+	info.mode = PART
+	info.includedLineIndices = utils.UnionInt(info.includedLineIndices, getIndicesForRange(firstLineIdx, lastLineIdx))
+
+	return nil
+}
+
+func (p *PatchManager) RemoveFileLineRange(filename string, firstLineIdx, lastLineIdx int) error {
+	info, err := p.getFileInfo(filename)
+	if err != nil {
+		return err
+	}
+	info.mode = PART
+	info.includedLineIndices = utils.DifferenceInt(info.includedLineIndices, getIndicesForRange(firstLineIdx, lastLineIdx))
+	if len(info.includedLineIndices) == 0 {
+		p.removeFile(info)
+	}
+
+	return nil
+}
+
+func (p *PatchManager) renderPlainPatchForFile(filename string, reverse bool, keepOriginalHeader bool) string {
+	info, err := p.getFileInfo(filename)
+	if err != nil {
+		p.Log.Error(err)
+		return ""
+	}
+
+	switch info.mode {
+	case WHOLE:
+		// use the whole diff
+		// the reverse flag is only for part patches so we're ignoring it here
+		return info.diff
+	case PART:
+		// generate a new diff with just the selected lines
+		return ModifiedPatchForLines(p.Log, filename, info.diff, info.includedLineIndices, reverse, keepOriginalHeader)
+	default:
+		return ""
+	}
+}
+
+func (p *PatchManager) RenderPatchForFile(filename string, plain bool, reverse bool, keepOriginalHeader bool) string {
+	patch := p.renderPlainPatchForFile(filename, reverse, keepOriginalHeader)
+	if plain {
+		return patch
+	}
+	parser, err := NewPatchParser(p.Log, patch)
+	if err != nil {
+		// swallowing for now
+		return ""
+	}
+	// not passing included lines because we don't want to see them in the secondary panel
+	return parser.Render(-1, -1, nil)
+}
+
+func (p *PatchManager) renderEachFilePatch(plain bool) []string {
+	// sort files by name then iterate through and render each patch
+	filenames := make([]string, len(p.fileInfoMap))
+	index := 0
+	for filename := range p.fileInfoMap {
+		filenames[index] = filename
+		index++
+	}
+
+	sort.Strings(filenames)
+	output := []string{}
+	for _, filename := range filenames {
+		patch := p.RenderPatchForFile(filename, plain, false, true)
+		if patch != "" {
+			output = append(output, patch)
+		}
+	}
+
+	return output
+}
+
+func (p *PatchManager) RenderAggregatedPatchColored(plain bool) string {
+	result := ""
+	for _, patch := range p.renderEachFilePatch(plain) {
+		if patch != "" {
+			result += patch + "\n"
+		}
+	}
+	return result
+}
+
+func (p *PatchManager) GetFileStatus(filename string) int {
+	info, ok := p.fileInfoMap[filename]
+	if !ok {
+		return UNSELECTED
+	}
+
+	return info.mode
+}
+
+func (p *PatchManager) GetFileIncLineIndices(filename string) ([]int, error) {
+	info, err := p.getFileInfo(filename)
+	if err != nil {
+		return nil, err
+	}
+	return info.includedLineIndices, nil
+}
+
+func (p *PatchManager) ApplyPatches(reverse bool) error {
+	// for whole patches we'll apply the patch in reverse
+	// but for part patches we'll apply a reverse patch forwards
+	for filename, info := range p.fileInfoMap {
+		if info.mode == UNSELECTED {
+			continue
+		}
+
+		applyFlags := []string{"index", "3way"}
+		reverseOnGenerate := false
+		if reverse {
+			if info.mode == WHOLE {
+				applyFlags = append(applyFlags, "reverse")
+			} else {
+				reverseOnGenerate = true
+			}
+		}
+
+		var err error
+		// first run we try with the original header, then without
+		for _, keepOriginalHeader := range []bool{true, false} {
+			patch := p.RenderPatchForFile(filename, true, reverseOnGenerate, keepOriginalHeader)
+			if patch == "" {
+				continue
+			}
+			if err = p.ApplyPatch(patch, applyFlags...); err != nil {
+				continue
+			}
+			break
+		}
+
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+// clears the patch
+func (p *PatchManager) Reset() {
+	p.To = ""
+	p.fileInfoMap = map[string]*fileInfo{}
+}
+
+func (p *PatchManager) Active() bool {
+	return p.To != ""
+}
+
+func (p *PatchManager) IsEmpty() bool {
+	for _, fileInfo := range p.fileInfoMap {
+		if fileInfo.mode == WHOLE || (fileInfo.mode == PART && len(fileInfo.includedLineIndices) > 0) {
+			return false
+		}
+	}
+
+	return true
+}
+
+// if any of these things change we'll need to reset and start a new patch
+func (p *PatchManager) NewPatchRequired(from string, to string, reverse bool) bool {
+	return from != p.From || to != p.To || reverse != p.Reverse
+}

pkg/commands/patch/patch_modifier.go

@@ -0,0 +1,158 @@
+package patch
+
+import (
+	"fmt"
+	"regexp"
+	"strings"
+
+	"github.com/sirupsen/logrus"
+)
+
+var hunkHeaderRegexp = regexp.MustCompile(`(?m)^@@ -(\d+)[^\+]+\+(\d+)[^@]+@@(.*)$`)
+var patchHeaderRegexp = regexp.MustCompile(`(?ms)(^diff.*?)^@@`)
+
+func GetHeaderFromDiff(diff string) string {
+	match := patchHeaderRegexp.FindStringSubmatch(diff)
+	if len(match) <= 1 {
+		return ""
+	}
+	return match[1]
+}
+
+func GetHunksFromDiff(diff string) []*PatchHunk {
+	hunks := []*PatchHunk{}
+	firstLineIdx := -1
+	var hunkLines []string
+	pastDiffHeader := false
+
+	for lineIdx, line := range strings.SplitAfter(diff, "\n") {
+		isHunkHeader := strings.HasPrefix(line, "@@ -")
+
+		if isHunkHeader {
+			if pastDiffHeader { // we need to persist the current hunk
+				hunks = append(hunks, newHunk(hunkLines, firstLineIdx))
+			}
+			pastDiffHeader = true
+			firstLineIdx = lineIdx
+			hunkLines = []string{line}
+			continue
+		}
+
+		if !pastDiffHeader { // skip through the stuff that precedes the first hunk
+			continue
+		}
+
+		hunkLines = append(hunkLines, line)
+	}
+
+	if pastDiffHeader {
+		hunks = append(hunks, newHunk(hunkLines, firstLineIdx))
+	}
+
+	return hunks
+}
+
+type PatchModifier struct {
+	Log      *logrus.Entry
+	filename string
+	hunks    []*PatchHunk
+	header   string
+}
+
+func NewPatchModifier(log *logrus.Entry, filename string, diffText string) *PatchModifier {
+	return &PatchModifier{
+		Log:      log,
+		filename: filename,
+		hunks:    GetHunksFromDiff(diffText),
+		header:   GetHeaderFromDiff(diffText),
+	}
+}
+
+func (d *PatchModifier) ModifiedPatchForLines(lineIndices []int, reverse bool, keepOriginalHeader bool) string {
+	// step one is getting only those hunks which we care about
+	hunksInRange := []*PatchHunk{}
+outer:
+	for _, hunk := range d.hunks {
+		// if there is any line in our lineIndices array that the hunk contains, we append it
+		for _, lineIdx := range lineIndices {
+			if lineIdx >= hunk.FirstLineIdx && lineIdx <= hunk.LastLineIdx() {
+				hunksInRange = append(hunksInRange, hunk)
+				continue outer
+			}
+		}
+	}
+
+	// step 2 is collecting all the hunks with new headers
+	startOffset := 0
+	formattedHunks := ""
+	var formattedHunk string
+	for _, hunk := range hunksInRange {
+		startOffset, formattedHunk = hunk.formatWithChanges(lineIndices, reverse, startOffset)
+		formattedHunks += formattedHunk
+	}
+
+	if formattedHunks == "" {
+		return ""
+	}
+
+	var fileHeader string
+	// for staging/unstaging lines we don't want the original header because
+	// it makes git confused e.g. when dealing with deleted/added files
+	// but with building and applying patches the original header gives git
+	// information it needs to cleanly apply patches
+	if keepOriginalHeader {
+		fileHeader = d.header
+	} else {
+		fileHeader = fmt.Sprintf("--- a/%s\n+++ b/%s\n", d.filename, d.filename)
+	}
+
+	return fileHeader + formattedHunks
+}
+
+func (d *PatchModifier) ModifiedPatchForRange(firstLineIdx int, lastLineIdx int, reverse bool, keepOriginalHeader bool) string {
+	// generate array of consecutive line indices from our range
+	selectedLines := []int{}
+	for i := firstLineIdx; i <= lastLineIdx; i++ {
+		selectedLines = append(selectedLines, i)
+	}
+	return d.ModifiedPatchForLines(selectedLines, reverse, keepOriginalHeader)
+}
+
+func (d *PatchModifier) OriginalPatchLength() int {
+	if len(d.hunks) == 0 {
+		return 0
+	}
+
+	return d.hunks[len(d.hunks)-1].LastLineIdx()
+}
+
+func ModifiedPatchForRange(log *logrus.Entry, filename string, diffText string, firstLineIdx int, lastLineIdx int, reverse bool, keepOriginalHeader bool) string {
+	p := NewPatchModifier(log, filename, diffText)
+	return p.ModifiedPatchForRange(firstLineIdx, lastLineIdx, reverse, keepOriginalHeader)
+}
+
+func ModifiedPatchForLines(log *logrus.Entry, filename string, diffText string, includedLineIndices []int, reverse bool, keepOriginalHeader bool) string {
+	p := NewPatchModifier(log, filename, diffText)
+	return p.ModifiedPatchForLines(includedLineIndices, reverse, keepOriginalHeader)
+}
+
+// I want to know, given a hunk, what line a given index is on
+func (hunk *PatchHunk) LineNumberOfLine(idx int) int {
+	lines := hunk.bodyLines[0 : idx-hunk.FirstLineIdx-1]
+
+	offset := nLinesWithPrefix(lines, []string{"+", " "})
+
+	return hunk.newStart + offset
+}
+
+func nLinesWithPrefix(lines []string, chars []string) int {
+	result := 0
+	for _, line := range lines {
+		for _, char := range chars {
+			if line[:1] == char {
+				result++
+			}
+		}
+	}
+	return result
+}

pkg/commands/patch/patch_modifier_test.go

@@ -0,0 +1,548 @@
+package patch
+
+import (
+	"fmt"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+const simpleDiff = `diff --git a/filename b/filename
+index dcd3485..1ba5540 100644
+--- a/filename
++++ b/filename
+@@ -1,5 +1,5 @@
+ apple
+-orange
++grape
+ ...
+ ...
+ ...
+`
+
+const addNewlineToEndOfFile = `diff --git a/filename b/filename
+index 80a73f1..e48a11c 100644
+--- a/filename
++++ b/filename
+@@ -60,4 +60,4 @@ grape
+ ...
+ ...
+ ...
+-last line
+\ No newline at end of file
++last line
+`
+
+const removeNewlinefromEndOfFile = `diff --git a/filename b/filename
+index e48a11c..80a73f1 100644
+--- a/filename
++++ b/filename
+@@ -60,4 +60,4 @@ grape
+ ...
+ ...
+ ...
+-last line
++last line
+\ No newline at end of file
+`
+
+const twoHunks = `diff --git a/filename b/filename
+index e48a11c..b2ab81b 100644
+--- a/filename
++++ b/filename
+@@ -1,5 +1,5 @@
+ apple
+-grape
++orange
+ ...
+ ...
+ ...
+@@ -8,6 +8,8 @@ grape
+ ...
+ ...
+ ...
++pear
++lemon
+ ...
+ ...
+ ...
+`
+
+const newFile = `diff --git a/newfile b/newfile
+new file mode 100644
+index 0000000..4e680cc
+--- /dev/null
++++ b/newfile
+@@ -0,0 +1,3 @@
++apple
++orange
++grape
+`
+
+const addNewlineToPreviouslyEmptyFile = `diff --git a/newfile b/newfile
+index e69de29..c6568ea 100644
+--- a/newfile
++++ b/newfile
+@@ -0,0 +1 @@
++new line
+\ No newline at end of file
+`
+
+const exampleHunk = `@@ -1,5 +1,5 @@
+ apple
+-grape
++orange
+...
+...
+...
+`
+
+// TestModifyPatchForRange is a function.
+func TestModifyPatchForRange(t *testing.T) {
+	type scenario struct {
+		testName       string
+		filename       string
+		diffText       string
+		firstLineIndex int
+		lastLineIndex  int
+		reverse        bool
+		expected       string
+	}
+
+	scenarios := []scenario{
+		{
+			testName:       "nothing selected",
+			filename:       "filename",
+			firstLineIndex: -1,
+			lastLineIndex:  -1,
+			reverse:        false,
+			diffText:       simpleDiff,
+			expected:       "",
+		},
+		{
+			testName:       "only context selected",
+			filename:       "filename",
+			firstLineIndex: 5,
+			lastLineIndex:  5,
+			reverse:        false,
+			diffText:       simpleDiff,
+			expected:       "",
+		},
+		{
+			testName:       "whole range selected",
+			filename:       "filename",
+			firstLineIndex: 0,
+			lastLineIndex:  11,
+			reverse:        false,
+			diffText:       simpleDiff,
+			expected: `--- a/filename
++++ b/filename
+@@ -1,5 +1,5 @@
+ apple
+-orange
++grape
+ ...
+ ...
+ ...
+`,
+		},
+		{
+			testName:       "only removal selected",
+			filename:       "filename",
+			firstLineIndex: 6,
+			lastLineIndex:  6,
+			reverse:        false,
+			diffText:       simpleDiff,
+			expected: `--- a/filename
++++ b/filename
+@@ -1,5 +1,4 @@
+ apple
+-orange
+ ...
+ ...
+ ...
+`,
+		},
+		{
+			testName:       "only addition selected",
+			filename:       "filename",
+			firstLineIndex: 7,
+			lastLineIndex:  7,
+			reverse:        false,
+			diffText:       simpleDiff,
+			expected: `--- a/filename
++++ b/filename
+@@ -1,5 +1,6 @@
+ apple
+ orange
++grape
+ ...
+ ...
+ ...
+`,
+		},
+		{
+			testName:       "range that extends beyond diff bounds",
+			filename:       "filename",
+			firstLineIndex: -100,
+			lastLineIndex:  100,
+			reverse:        false,
+			diffText:       simpleDiff,
+			expected: `--- a/filename
++++ b/filename
+@@ -1,5 +1,5 @@
+ apple
+-orange
++grape
+ ...
+ ...
+ ...
+`,
+		},
+		{
+			testName:       "whole range reversed",
+			filename:       "filename",
+			firstLineIndex: 0,
+			lastLineIndex:  11,
+			reverse:        true,
+			diffText:       simpleDiff,
+			expected: `--- a/filename
++++ b/filename
+@@ -1,5 +1,5 @@
+ apple
++orange
+-grape
+ ...
+ ...
+ ...
+`,
+		},
+		{
+			testName:       "removal reversed",
+			filename:       "filename",
+			firstLineIndex: 6,
+			lastLineIndex:  6,
+			reverse:        true,
+			diffText:       simpleDiff,
+			expected: `--- a/filename
++++ b/filename
+@@ -1,5 +1,6 @@
+ apple
++orange
+ grape
+ ...
+ ...
+ ...
+`,
+		},
+		{
+			testName:       "removal reversed",
+			filename:       "filename",
+			firstLineIndex: 7,
+			lastLineIndex:  7,
+			reverse:        true,
+			diffText:       simpleDiff,
+			expected: `--- a/filename
++++ b/filename
+@@ -1,5 +1,4 @@
+ apple
+-grape
+ ...
+ ...
+ ...
+`,
+		},
+		{
+			testName:       "add newline to end of file",
+			filename:       "filename",
+			firstLineIndex: -100,
+			lastLineIndex:  100,
+			reverse:        false,
+			diffText:       addNewlineToEndOfFile,
+			expected: `--- a/filename
++++ b/filename
+@@ -60,4 +60,4 @@ grape
+ ...
+ ...
+ ...
+-last line
+\ No newline at end of file
++last line
+`,
+		},
+		{
+			testName:       "add newline to end of file, addition only",
+			filename:       "filename",
+			firstLineIndex: 8,
+			lastLineIndex:  8,
+			reverse:        true,
+			diffText:       addNewlineToEndOfFile,
+			expected: `--- a/filename
++++ b/filename
+@@ -60,4 +60,5 @@ grape
+ ...
+ ...
+ ...
++last line
+\ No newline at end of file
+ last line
+`,
+		},
+		{
+			testName:       "add newline to end of file, removal only",
+			filename:       "filename",
+			firstLineIndex: 10,
+			lastLineIndex:  10,
+			reverse:        true,
+			diffText:       addNewlineToEndOfFile,
+			expected: `--- a/filename
++++ b/filename
+@@ -60,4 +60,3 @@ grape
+ ...
+ ...
+ ...
+-last line
+`,
+		},
+		{
+			testName:       "remove newline from end of file",
+			filename:       "filename",
+			firstLineIndex: -100,
+			lastLineIndex:  100,
+			reverse:        false,
+			diffText:       removeNewlinefromEndOfFile,
+			expected: `--- a/filename
++++ b/filename
+@@ -60,4 +60,4 @@ grape
+ ...
+ ...
+ ...
+-last line
++last line
+\ No newline at end of file
+`,
+		},
+		{
+			testName:       "remove newline from end of file, removal only",
+			filename:       "filename",
+			firstLineIndex: 8,
+			lastLineIndex:  8,
+			reverse:        false,
+			diffText:       removeNewlinefromEndOfFile,
+			expected: `--- a/filename
++++ b/filename
+@@ -60,4 +60,3 @@ grape
+ ...
+ ...
+ ...
+-last line
+`,
+		},
+		{
+			testName:       "remove newline from end of file, addition only",
+			filename:       "filename",
+			firstLineIndex: 9,
+			lastLineIndex:  9,
+			reverse:        false,
+			diffText:       removeNewlinefromEndOfFile,
+			expected: `--- a/filename
++++ b/filename
+@@ -60,4 +60,5 @@ grape
+ ...
+ ...
+ ...
+ last line
++last line
+\ No newline at end of file
+`,
+		},
+		{
+			testName:       "staging two whole hunks",
+			filename:       "filename",
+			firstLineIndex: -100,
+			lastLineIndex:  100,
+			reverse:        false,
+			diffText:       twoHunks,
+			expected: `--- a/filename
++++ b/filename
+@@ -1,5 +1,5 @@
+ apple
+-grape
++orange
+ ...
+ ...
+ ...
+@@ -8,6 +8,8 @@ grape
+ ...
+ ...
+ ...
++pear
++lemon
+ ...
+ ...
+ ...
+`,
+		},
+		{
+			testName:       "staging part of both hunks",
+			filename:       "filename",
+			firstLineIndex: 7,
+			lastLineIndex:  15,
+			reverse:        false,
+			diffText:       twoHunks,
+			expected: `--- a/filename
++++ b/filename
+@@ -1,5 +1,6 @@
+ apple
+ grape
++orange
+ ...
+ ...
+ ...
+@@ -8,6 +9,7 @@ grape
+ ...
+ ...
+ ...
++pear
+ ...
+ ...
+ ...
+`,
+		},
+		{
+			testName:       "staging part of both hunks, reversed",
+			filename:       "filename",
+			firstLineIndex: 7,
+			lastLineIndex:  15,
+			reverse:        true,
+			diffText:       twoHunks,
+			expected: `--- a/filename
++++ b/filename
+@@ -1,5 +1,4 @@
+ apple
+-orange
+ ...
+ ...
+ ...
+@@ -8,8 +7,7 @@ grape
+ ...
+ ...
+ ...
+-pear
+ lemon
+ ...
+ ...
+ ...
+`,
+		},
+		{
+			testName:       "adding a new file",
+			filename:       "newfile",
+			firstLineIndex: -100,
+			lastLineIndex:  100,
+			reverse:        false,
+			diffText:       newFile,
+			expected: `--- a/newfile
++++ b/newfile
+@@ -0,0 +1,3 @@
++apple
++orange
++grape
+`,
+		},
+		{
+			testName:       "adding part of a new file",
+			filename:       "newfile",
+			firstLineIndex: 6,
+			lastLineIndex:  7,
+			reverse:        false,
+			diffText:       newFile,
+			expected: `--- a/newfile
++++ b/newfile
+@@ -0,0 +1,2 @@
++apple
++orange
+`,
+		},
+		{
+			testName:       "adding a new file, reversed",
+			filename:       "newfile",
+			firstLineIndex: -100,
+			lastLineIndex:  100,
+			reverse:        true,
+			diffText:       newFile,
+			expected: `--- a/newfile
++++ b/newfile
+@@ -1,3 +0,0 @@
+-apple
+-orange
+-grape
+`,
+		},
+		{
+			testName:       "adding a new line to a previously empty file",
+			filename:       "newfile",
+			firstLineIndex: -100,
+			lastLineIndex:  100,
+			reverse:        false,
+			diffText:       addNewlineToPreviouslyEmptyFile,
+			expected: `--- a/newfile
++++ b/newfile
+@@ -0,0 +1,1 @@
++new line
+\ No newline at end of file
+`,
+		},
+		{
+			testName:       "adding a new line to a previously empty file, reversed",
+			filename:       "newfile",
+			firstLineIndex: -100,
+			lastLineIndex:  100,
+			reverse:        true,
+			diffText:       addNewlineToPreviouslyEmptyFile,
+			expected: `--- a/newfile
++++ b/newfile
+@@ -1,1 +0,0 @@
+-new line
+\ No newline at end of file
+`,
+		},
+	}
+
+	for _, s := range scenarios {
+		t.Run(s.testName, func(t *testing.T) {
+			result := ModifiedPatchForRange(nil, s.filename, s.diffText, s.firstLineIndex, s.lastLineIndex, s.reverse, false)
+			if !assert.Equal(t, s.expected, result) {
+				fmt.Println(result)
+			}
+		})
+	}
+}
+
+func TestLineNumberOfLine(t *testing.T) {
+	type scenario struct {
+		testName string
+		hunk     *PatchHunk
+		idx      int
+		expected int
+	}
+
+	scenarios := []scenario{
+		{
+			testName: "nothing selected",
+			hunk:     newHunk(strings.SplitAfter(exampleHunk, "\n"), 10),
+			idx:      15,
+			expected: 3,
+		},
+	}
+
+	for _, s := range scenarios {
+		t.Run(s.testName, func(t *testing.T) {
+			result := s.hunk.LineNumberOfLine(s.idx)
+			if !assert.Equal(t, s.expected, result) {
+				fmt.Println(result)
+			}
+		})
+	}
+}

pkg/commands/patch/patch_parser.go

@@ -0,0 +1,213 @@
+package patch
+
+import (
+	"regexp"
+	"strings"
+
+	"github.com/fatih/color"
+	"github.com/jesseduffield/lazygit/pkg/theme"
+	"github.com/jesseduffield/lazygit/pkg/utils"
+	"github.com/sirupsen/logrus"
+)
+
+const (
+	PATCH_HEADER = iota
+	COMMIT_SHA
+	COMMIT_DESCRIPTION
+	HUNK_HEADER
+	ADDITION
+	DELETION
+	CONTEXT
+	NEWLINE_MESSAGE
+)
+
+// the job of this file is to parse a diff, find out where the hunks begin and end, which lines are stageable, and how to find the next hunk from the current position or the next stageable line from the current position.
+
+type PatchLine struct {
+	Kind    int
+	Content string // something like '+ hello' (note the first character is not removed)
+}
+
+type PatchParser struct {
+	Log            *logrus.Entry
+	PatchLines     []*PatchLine
+	PatchHunks     []*PatchHunk
+	HunkStarts     []int
+	StageableLines []int // rename to mention we're talking about indexes
+}
+
+// NewPatchParser builds a new branch list builder
+func NewPatchParser(log *logrus.Entry, patch string) (*PatchParser, error) {
+	hunkStarts, stageableLines, patchLines, err := parsePatch(patch)
+	if err != nil {
+		return nil, err
+	}
+
+	patchHunks := GetHunksFromDiff(patch)
+
+	return &PatchParser{
+		Log:            log,
+		HunkStarts:     hunkStarts, // deprecated
+		StageableLines: stageableLines,
+		PatchLines:     patchLines,
+		PatchHunks:     patchHunks,
+	}, nil
+}
+
+// GetHunkContainingLine takes a line index and an offset and finds the hunk
+// which contains the line index, then returns the hunk considering the offset.
+// e.g. if the offset is 1 it will return the next hunk.
+func (p *PatchParser) GetHunkContainingLine(lineIndex int, offset int) *PatchHunk {
+	if len(p.PatchHunks) == 0 {
+		return nil
+	}
+
+	for index, hunk := range p.PatchHunks {
+		if lineIndex >= hunk.FirstLineIdx && lineIndex <= hunk.LastLineIdx() {
+			resultIndex := index + offset
+			if resultIndex < 0 {
+				resultIndex = 0
+			} else if resultIndex > len(p.PatchHunks)-1 {
+				resultIndex = len(p.PatchHunks) - 1
+			}
+			return p.PatchHunks[resultIndex]
+		}
+	}
+
+	// if your cursor is past the last hunk, select the last hunk
+	if lineIndex > p.PatchHunks[len(p.PatchHunks)-1].LastLineIdx() {
+		return p.PatchHunks[len(p.PatchHunks)-1]
+	}
+
+	// otherwise select the first
+	return p.PatchHunks[0]
+}
+
+// selected means you've got it highlighted with your cursor
+// included means the line has been included in the patch (only applicable when
+// building a patch)
+func (l *PatchLine) render(selected bool, included bool) string {
+	content := l.Content
+	if len(content) == 0 {
+		content = " " // using the space so that we can still highlight if necessary
+	}
+
+	// for hunk headers we need to start off cyan and then use white for the message
+	if l.Kind == HUNK_HEADER {
+		re := regexp.MustCompile("(@@.*?@@)(.*)")
+		match := re.FindStringSubmatch(content)
+		return coloredString(color.FgCyan, match[1], selected, included) + coloredString(theme.DefaultTextColor, match[2], selected, false)
+	}
+
+	var colorAttr color.Attribute
+	switch l.Kind {
+	case PATCH_HEADER:
+		colorAttr = color.Bold
+	case ADDITION:
+		colorAttr = color.FgGreen
+	case DELETION:
+		colorAttr = color.FgRed
+	case COMMIT_SHA:
+		colorAttr = color.FgYellow
+	default:
+		colorAttr = theme.DefaultTextColor
+	}
+
+	return coloredString(colorAttr, content, selected, included)
+}
+
+func coloredString(colorAttr color.Attribute, str string, selected bool, included bool) string {
+	var cl *color.Color
+	attributes := []color.Attribute{colorAttr}
+	if selected {
+		attributes = append(attributes, theme.SelectedRangeBgColor)
+	}
+	cl = color.New(attributes...)
+	var clIncluded *color.Color
+	if included {
+		clIncluded = color.New(append(attributes, color.BgGreen)...)
+	} else {
+		clIncluded = color.New(attributes...)
+	}
+
+	if len(str) < 2 {
+		return utils.ColoredStringDirect(str, clIncluded)
+	}
+
+	return utils.ColoredStringDirect(str[:1], clIncluded) + utils.ColoredStringDirect(str[1:], cl)
+}
+
+func parsePatch(patch string) ([]int, []int, []*PatchLine, error) {
+	lines := strings.Split(patch, "\n")
+	hunkStarts := []int{}
+	stageableLines := []int{}
+	pastFirstHunkHeader := false
+	pastCommitDescription := true
+	patchLines := make([]*PatchLine, len(lines))
+	var lineKind int
+	var firstChar string
+	for index, line := range lines {
+		firstChar = " "
+		if len(line) > 0 {
+			firstChar = line[:1]
+		}
+		if index == 0 && strings.HasPrefix(line, "commit") {
+			lineKind = COMMIT_SHA
+			pastCommitDescription = false
+		} else if !pastCommitDescription {
+			if strings.HasPrefix(line, "diff") || strings.HasPrefix(line, "---") {
+				pastCommitDescription = true
+				lineKind = PATCH_HEADER
+			} else {
+				lineKind = COMMIT_DESCRIPTION
+			}
+		} else if firstChar == "@" {
+			pastFirstHunkHeader = true
+			hunkStarts = append(hunkStarts, index)
+			lineKind = HUNK_HEADER
+		} else if pastFirstHunkHeader {
+			switch firstChar {
+			case "-":
+				lineKind = DELETION
+				stageableLines = append(stageableLines, index)
+			case "+":
+				lineKind = ADDITION
+				stageableLines = append(stageableLines, index)
+			case "\\":
+				lineKind = NEWLINE_MESSAGE
+			case " ":
+				lineKind = CONTEXT
+			}
+		} else {
+			lineKind = PATCH_HEADER
+		}
+		patchLines[index] = &PatchLine{Kind: lineKind, Content: line}
+	}
+	return hunkStarts, stageableLines, patchLines, nil
+}
+
+// Render returns the coloured string of the diff with any selected lines highlighted
+func (p *PatchParser) Render(firstLineIndex int, lastLineIndex int, incLineIndices []int) string {
+	renderedLines := make([]string, len(p.PatchLines))
+	for index, patchLine := range p.PatchLines {
+		selected := index >= firstLineIndex && index <= lastLineIndex
+		included := utils.IncludesInt(incLineIndices, index)
+		renderedLines[index] = patchLine.render(selected, included)
+	}
+	result := strings.Join(renderedLines, "\n")
+	if strings.TrimSpace(utils.Decolorise(result)) == "" {
+		return ""
+	}
+	return result
+}
+
+// GetNextStageableLineIndex takes a line index and returns the line index of the next stageable line
+// note this will actually include the current index if it is stageable
+func (p *PatchParser) GetNextStageableLineIndex(currentIndex int) int {
+	for _, lineIndex := range p.StageableLines {
+		if lineIndex >= currentIndex {
+			return lineIndex
+		}
+	}
+	return p.StageableLines[len(p.StageableLines)-1]
+}

pkg/commands/patch_rebases.go

@@ -0,0 +1,230 @@
+package commands
+
+import (
+	"fmt"
+
+	"github.com/go-errors/errors"
+	"github.com/jesseduffield/lazygit/pkg/commands/patch"
+)
+
+// DeletePatchesFromCommit applies a patch in reverse for a commit
+func (c *GitCommand) DeletePatchesFromCommit(commits []*Commit, commitIndex int, p *patch.PatchManager) error {
+	if err := c.BeginInteractiveRebaseForCommit(commits, commitIndex); err != nil {
+		return err
+	}
+
+	// apply each patch in reverse
+	if err := p.ApplyPatches(true); err != nil {
+		if err := c.GenericMerge("rebase", "abort"); err != nil {
+			return err
+		}
+		return err
+	}
+
+	// time to amend the selected commit
+	if _, err := c.AmendHead(); err != nil {
+		return err
+	}
+
+	c.onSuccessfulContinue = func() error {
+		c.PatchManager.Reset()
+		return nil
+	}
+
+	// continue
+	return c.GenericMerge("rebase", "continue")
+}
+
+func (c *GitCommand) MovePatchToSelectedCommit(commits []*Commit, sourceCommitIdx int, destinationCommitIdx int, p *patch.PatchManager) error {
+	if sourceCommitIdx < destinationCommitIdx {
+		if err := c.BeginInteractiveRebaseForCommit(commits, destinationCommitIdx); err != nil {
+			return err
+		}
+
+		// apply each patch forward
+		if err := p.ApplyPatches(false); err != nil {
+			if err := c.GenericMerge("rebase", "abort"); err != nil {
+				return err
+			}
+			return err
+		}
+
+		// amend the destination commit
+		if _, err := c.AmendHead(); err != nil {
+			return err
+		}
+
+		c.onSuccessfulContinue = func() error {
+			c.PatchManager.Reset()
+			return nil
+		}
+
+		// continue
+		return c.GenericMerge("rebase", "continue")
+	}
+
+	if len(commits)-1 < sourceCommitIdx {
+		return errors.New("index outside of range of commits")
+	}
+
+	// we can make this GPG thing possible it just means we need to do this in two parts:
+	// one where we handle the possibility of a credential request, and the other
+	// where we continue the rebase
+	if c.usingGpg() {
+		return errors.New(c.Tr.SLocalize("DisabledForGPG"))
+	}
+
+	baseIndex := sourceCommitIdx + 1
+	todo := ""
+	for i, commit := range commits[0:baseIndex] {
+		a := "pick"
+		if i == sourceCommitIdx || i == destinationCommitIdx {
+			a = "edit"
+		}
+		todo = a + " " + commit.Sha + " " + commit.Name + "\n" + todo
+	}
+
+	cmd, err := c.PrepareInteractiveRebaseCommand(commits[baseIndex].Sha, todo, true)
+	if err != nil {
+		return err
+	}
+
+	if err := c.OSCommand.RunPreparedCommand(cmd); err != nil {
+		return err
+	}
+
+	// apply each patch in reverse
+	if err := p.ApplyPatches(true); err != nil {
+		if err := c.GenericMerge("rebase", "abort"); err != nil {
+			return err
+		}
+		return err
+	}
+
+	// amend the source commit
+	if _, err := c.AmendHead(); err != nil {
+		return err
+	}
+
+	if c.onSuccessfulContinue != nil {
+		return errors.New("You are midway through another rebase operation. Please abort to start again")
+	}
+
+	c.onSuccessfulContinue = func() error {
+		// now we should be up to the destination, so let's apply forward these patches to that.
+		// ideally we would ensure we're on the right commit but I'm not sure if that check is necessary
+		if err := p.ApplyPatches(false); err != nil {
+			if err := c.GenericMerge("rebase", "abort"); err != nil {
+				return err
+			}
+			return err
+		}
+
+		// amend the destination commit
+		if _, err := c.AmendHead(); err != nil {
+			return err
+		}
+
+		c.onSuccessfulContinue = func() error {
+			c.PatchManager.Reset()
+			return nil
+		}
+
+		return c.GenericMerge("rebase", "continue")
+	}
+
+	return c.GenericMerge("rebase", "continue")
+}
+
+func (c *GitCommand) PullPatchIntoIndex(commits []*Commit, commitIdx int, p *patch.PatchManager, stash bool) error {
+	if stash {
+		if err := c.StashSave(c.Tr.SLocalize("StashPrefix") + commits[commitIdx].Sha); err != nil {
+			return err
+		}
+	}
+
+	if err := c.BeginInteractiveRebaseForCommit(commits, commitIdx); err != nil {
+		return err
+	}
+
+	if err := p.ApplyPatches(true); err != nil {
+		if c.WorkingTreeState() == "rebasing" {
+			if err := c.GenericMerge("rebase", "abort"); err != nil {
+				return err
+			}
+		}
+		return err
+	}
+
+	// amend the commit
+	if _, err := c.AmendHead(); err != nil {
+		return err
+	}
+
+	if c.onSuccessfulContinue != nil {
+		return errors.New("You are midway through another rebase operation. Please abort to start again")
+	}
+
+	c.onSuccessfulContinue = func() error {
+		// add patches to index
+		if err := p.ApplyPatches(false); err != nil {
+			if c.WorkingTreeState() == "rebasing" {
+				if err := c.GenericMerge("rebase", "abort"); err != nil {
+					return err
+				}
+			}
+			return err
+		}
+
+		if stash {
+			if err := c.StashDo(0, "apply"); err != nil {
+				return err
+			}
+		}
+
+		c.PatchManager.Reset()
+		return nil
+	}
+
+	return c.GenericMerge("rebase", "continue")
+}
+
+func (c *GitCommand) PullPatchIntoNewCommit(commits []*Commit, commitIdx int, p *patch.PatchManager) error {
+	if err := c.BeginInteractiveRebaseForCommit(commits, commitIdx); err != nil {
+		return err
+	}
+
+	if err := p.ApplyPatches(true); err != nil {
+		if err := c.GenericMerge("rebase", "abort"); err != nil {
+			return err
+		}
+		return err
+	}
+
+	// amend the commit
+	if _, err := c.AmendHead(); err != nil {
+		return err
+	}
+
+	// add patches to index
+	if err := p.ApplyPatches(false); err != nil {
+		if err := c.GenericMerge("rebase", "abort"); err != nil {
+			return err
+		}
+		return err
+	}
+
+	head_message, _ := c.GetHeadCommitMessage()
+	new_message := fmt.Sprintf("Split from \"%s\"", head_message)
+	_, err := c.Commit(new_message, "")
+	if err != nil {
+		return err
+	}
+
+	if c.onSuccessfulContinue != nil {
+		return errors.New("You are midway through another rebase operation. Please abort to start again")
+	}
+
+	c.PatchManager.Reset()
+	return c.GenericMerge("rebase", "continue")
+}

pkg/commands/pull_request.go

@@ -0,0 +1,143 @@
+package commands
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/go-errors/errors"
+	"github.com/jesseduffield/lazygit/pkg/config"
+)
+
+// Service is a service that repository is on (Github, Bitbucket, ...)
+type Service struct {
+	Name           string
+	PullRequestURL string
+}
+
+// PullRequest opens a link in browser to create new pull request
+// with selected branch
+type PullRequest struct {
+	GitServices []*Service
+	GitCommand  *GitCommand
+}
+
+// RepoInformation holds some basic information about the repo
+type RepoInformation struct {
+	Owner      string
+	Repository string
+}
+
+// NewService builds a Service based on the host type
+func NewService(typeName string, repositoryDomain string, siteDomain string) *Service {
+	var service *Service
+
+	switch typeName {
+	case "github":
+		service = &Service{
+			Name:           repositoryDomain,
+			PullRequestURL: fmt.Sprintf("https://%s%s", siteDomain, "/%s/%s/compare/%s?expand=1"),
+		}
+	case "bitbucket":
+		service = &Service{
+			Name:           repositoryDomain,
+			PullRequestURL: fmt.Sprintf("https://%s%s", siteDomain, "/%s/%s/pull-requests/new?source=%s&t=1"),
+		}
+	case "gitlab":
+		service = &Service{
+			Name:           repositoryDomain,
+			PullRequestURL: fmt.Sprintf("https://%s%s", siteDomain, "/%s/%s/merge_requests/new?merge_request[source_branch]=%s"),
+		}
+	}
+
+	return service
+}
+
+func getServices(config config.AppConfigurer) []*Service {
+	services := []*Service{
+		NewService("github", "github.com", "github.com"),
+		NewService("bitbucket", "bitbucket.org", "bitbucket.org"),
+		NewService("gitlab", "gitlab.com", "gitlab.com"),
+	}
+
+	configServices := config.GetUserConfig().GetStringMapString("services")
+
+	for repoDomain, typeAndDomain := range configServices {
+		splitData := strings.Split(typeAndDomain, ":")
+		if len(splitData) != 2 {
+			// TODO log this misconfiguration
+			continue
+		}
+
+		service := NewService(splitData[0], repoDomain, splitData[1])
+		if service == nil {
+			// TODO log this unsupported service
+			continue
+		}
+
+		services = append(services, service)
+	}
+
+	return services
+}
+
+// NewPullRequest creates new instance of PullRequest
+func NewPullRequest(gitCommand *GitCommand) *PullRequest {
+	return &PullRequest{
+		GitServices: getServices(gitCommand.Config),
+		GitCommand:  gitCommand,
+	}
+}
+
+// Create opens link to new pull request in browser
+func (pr *PullRequest) Create(branch *Branch) error {
+	branchExistsOnRemote := pr.GitCommand.CheckRemoteBranchExists(branch)
+
+	if !branchExistsOnRemote {
+		return errors.New(pr.GitCommand.Tr.SLocalize("NoBranchOnRemote"))
+	}
+
+	repoURL := pr.GitCommand.GetRemoteURL()
+	var gitService *Service
+
+	for _, service := range pr.GitServices {
+		if strings.Contains(repoURL, service.Name) {
+			gitService = service
+			break
+		}
+	}
+
+	if gitService == nil {
+		return errors.New(pr.GitCommand.Tr.SLocalize("UnsupportedGitService"))
+	}
+
+	repoInfo := getRepoInfoFromURL(repoURL)
+
+	return pr.GitCommand.OSCommand.OpenLink(fmt.Sprintf(
+		gitService.PullRequestURL, repoInfo.Owner, repoInfo.Repository, branch.Name,
+	))
+}
+
+func getRepoInfoFromURL(url string) *RepoInformation {
+	isHTTP := strings.HasPrefix(url, "http")
+
+	if isHTTP {
+		splits := strings.Split(url, "/")
+		owner := strings.Join(splits[3:len(splits)-1], "/")
+		repo := strings.TrimSuffix(splits[len(splits)-1], ".git")
+
+		return &RepoInformation{
+			Owner:      owner,
+			Repository: repo,
+		}
+	}
+
+	tmpSplit := strings.Split(url, ":")
+	splits := strings.Split(tmpSplit[1], "/")
+	owner := strings.Join(splits[0:len(splits)-1], "/")
+	repo := strings.TrimSuffix(splits[len(splits)-1], ".git")
+
+	return &RepoInformation{
+		Owner:      owner,
+		Repository: repo,
+	}
+}

pkg/commands/pull_request_test.go

@@ -0,0 +1,161 @@
+package commands
+
+import (
+	"os/exec"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+// TestGetRepoInfoFromURL is a function.
+func TestGetRepoInfoFromURL(t *testing.T) {
+	type scenario struct {
+		testName string
+		repoURL  string
+		test     func(*RepoInformation)
+	}
+
+	scenarios := []scenario{
+		{
+			"Returns repository information for git remote url",
+			"git@github.com:petersmith/super_calculator",
+			func(repoInfo *RepoInformation) {
+				assert.EqualValues(t, repoInfo.Owner, "petersmith")
+				assert.EqualValues(t, repoInfo.Repository, "super_calculator")
+			},
+		},
+		{
+			"Returns repository information for http remote url",
+			"https://my_username@bitbucket.org/johndoe/social_network.git",
+			func(repoInfo *RepoInformation) {
+				assert.EqualValues(t, repoInfo.Owner, "johndoe")
+				assert.EqualValues(t, repoInfo.Repository, "social_network")
+			},
+		},
+	}
+
+	for _, s := range scenarios {
+		t.Run(s.testName, func(t *testing.T) {
+			s.test(getRepoInfoFromURL(s.repoURL))
+		})
+	}
+}
+
+// TestCreatePullRequest is a function.
+func TestCreatePullRequest(t *testing.T) {
+	type scenario struct {
+		testName string
+		branch   *Branch
+		command  func(string, ...string) *exec.Cmd
+		test     func(err error)
+	}
+
+	scenarios := []scenario{
+		{
+			"Opens a link to new pull request on bitbucket",
+			&Branch{
+				Name: "feature/profile-page",
+			},
+			func(cmd string, args ...string) *exec.Cmd {
+				// Handle git remote url call
+				if strings.HasPrefix(cmd, "git") {
+					return exec.Command("echo", "git@bitbucket.org:johndoe/social_network.git")
+				}
+
+				assert.Equal(t, cmd, "open")
+				assert.Equal(t, args, []string{"https://bitbucket.org/johndoe/social_network/pull-requests/new?source=feature/profile-page&t=1"})
+				return exec.Command("echo")
+			},
+			func(err error) {
+				assert.NoError(t, err)
+			},
+		},
+		{
+			"Opens a link to new pull request on bitbucket with http remote url",
+			&Branch{
+				Name: "feature/events",
+			},
+			func(cmd string, args ...string) *exec.Cmd {
+				// Handle git remote url call
+				if strings.HasPrefix(cmd, "git") {
+					return exec.Command("echo", "https://my_username@bitbucket.org/johndoe/social_network.git")
+				}
+
+				assert.Equal(t, cmd, "open")
+				assert.Equal(t, args, []string{"https://bitbucket.org/johndoe/social_network/pull-requests/new?source=feature/events&t=1"})
+				return exec.Command("echo")
+			},
+			func(err error) {
+				assert.NoError(t, err)
+			},
+		},
+		{
+			"Opens a link to new pull request on github",
+			&Branch{
+				Name: "feature/sum-operation",
+			},
+			func(cmd string, args ...string) *exec.Cmd {
+				// Handle git remote url call
+				if strings.HasPrefix(cmd, "git") {
+					return exec.Command("echo", "git@github.com:peter/calculator.git")
+				}
+
+				assert.Equal(t, cmd, "open")
+				assert.Equal(t, args, []string{"https://github.com/peter/calculator/compare/feature/sum-operation?expand=1"})
+				return exec.Command("echo")
+			},
+			func(err error) {
+				assert.NoError(t, err)
+			},
+		},
+		{
+			"Opens a link to new pull request on gitlab",
+			&Branch{
+				Name: "feature/ui",
+			},
+			func(cmd string, args ...string) *exec.Cmd {
+				// Handle git remote url call
+				if strings.HasPrefix(cmd, "git") {
+					return exec.Command("echo", "git@gitlab.com:peter/calculator.git")
+				}
+
+				assert.Equal(t, cmd, "open")
+				assert.Equal(t, args, []string{"https://gitlab.com/peter/calculator/merge_requests/new?merge_request[source_branch]=feature/ui"})
+				return exec.Command("echo")
+			},
+			func(err error) {
+				assert.NoError(t, err)
+			},
+		},
+		{
+			"Throws an error if git service is unsupported",
+			&Branch{
+				Name: "feature/divide-operation",
+			},
+			func(cmd string, args ...string) *exec.Cmd {
+				return exec.Command("echo", "git@something.com:peter/calculator.git")
+			},
+			func(err error) {
+				assert.Error(t, err)
+			},
+		},
+	}
+
+	for _, s := range scenarios {
+		t.Run(s.testName, func(t *testing.T) {
+			gitCommand := NewDummyGitCommand()
+			gitCommand.OSCommand.command = s.command
+			gitCommand.OSCommand.Config.GetUserConfig().Set("os.openLinkCommand", "open {{link}}")
+			gitCommand.Config.GetUserConfig().Set("services", map[string]string{
+				// valid configuration for a custom service URL
+				"git.work.com": "gitlab:code.work.com",
+				// invalid configurations for a custom service URL
+				"invalid.work.com":   "noservice:invalid.work.com",
+				"noservice.work.com": "noservice.work.com",
+			})
+			dummyPullRequest := NewPullRequest(gitCommand)
+			s.test(dummyPullRequest.Create(s.branch))
+		})
+	}
+}

pkg/commands/remote.go

@@ -0,0 +1,20 @@
+package commands
+
+// Remote : A git remote
+type Remote struct {
+	Name     string
+	Urls     []string
+	Branches []*RemoteBranch
+}
+
+func (r *Remote) RefName() string {
+	return r.Name
+}
+
+func (r *Remote) ID() string {
+	return r.RefName()
+}
+
+func (r *Remote) Description() string {
+	return r.RefName()
+}

pkg/commands/remote_branch.go

@@ -0,0 +1,23 @@
+package commands
+
+// Remote Branch : A git remote branch
+type RemoteBranch struct {
+	Name       string
+	RemoteName string
+}
+
+func (r *RemoteBranch) FullName() string {
+	return r.RemoteName + "/" + r.Name
+}
+
+func (r *RemoteBranch) RefName() string {
+	return r.FullName()
+}
+
+func (r *RemoteBranch) ID() string {
+	return r.RefName()
+}
+
+func (r *RemoteBranch) Description() string {
+	return r.RefName()
+}

pkg/commands/stash_entry.go

@@ -0,0 +1,21 @@
+package commands
+
+import "fmt"
+
+// StashEntry : A git stash entry
+type StashEntry struct {
+	Index int
+	Name  string
+}
+
+func (s *StashEntry) RefName() string {
+	return fmt.Sprintf("stash@{%d}", s.Index)
+}
+
+func (s *StashEntry) ID() string {
+	return s.RefName()
+}
+
+func (s *StashEntry) Description() string {
+	return s.RefName() + ": " + s.Name
+}

pkg/commands/tag.go

@@ -0,0 +1,18 @@
+package commands
+
+// Tag : A git tag
+type Tag struct {
+	Name string
+}
+
+func (t *Tag) RefName() string {
+	return t.Name
+}
+
+func (t *Tag) ID() string {
+	return t.RefName()
+}
+
+func (t *Tag) Description() string {
+	return "tag " + t.Name
+}

pkg/config/app_config.go

@@ -0,0 +1,420 @@
+package config
+
+import (
+	"bytes"
+	"io/ioutil"
+	"os"
+	"path/filepath"
+
+	"github.com/shibukawa/configdir"
+	"github.com/spf13/viper"
+	yaml "gopkg.in/yaml.v2"
+)
+
+// AppConfig contains the base configuration fields required for lazygit.
+type AppConfig struct {
+	Debug         bool   `long:"debug" env:"DEBUG" default:"false"`
+	Version       string `long:"version" env:"VERSION" default:"unversioned"`
+	Commit        string `long:"commit" env:"COMMIT"`
+	BuildDate     string `long:"build-date" env:"BUILD_DATE"`
+	Name          string `long:"name" env:"NAME" default:"lazygit"`
+	BuildSource   string `long:"build-source" env:"BUILD_SOURCE" default:""`
+	UserConfig    *viper.Viper
+	UserConfigDir string
+	AppState      *AppState
+	IsNewRepo     bool
+}
+
+// AppConfigurer interface allows individual app config structs to inherit Fields
+// from AppConfig and still be used by lazygit.
+type AppConfigurer interface {
+	GetDebug() bool
+	GetVersion() string
+	GetCommit() string
+	GetBuildDate() string
+	GetName() string
+	GetBuildSource() string
+	GetUserConfig() *viper.Viper
+	GetUserConfigDir() string
+	GetAppState() *AppState
+	WriteToUserConfig(string, interface{}) error
+	SaveAppState() error
+	LoadAppState() error
+	SetIsNewRepo(bool)
+	GetIsNewRepo() bool
+}
+
+// NewAppConfig makes a new app config
+func NewAppConfig(name, version, commit, date string, buildSource string, debuggingFlag bool) (*AppConfig, error) {
+	userConfig, userConfigPath, err := LoadConfig("config", true)
+	if err != nil {
+		return nil, err
+	}
+
+	if os.Getenv("DEBUG") == "TRUE" {
+		debuggingFlag = true
+	}
+
+	appConfig := &AppConfig{
+		Name:          "lazygit",
+		Version:       version,
+		Commit:        commit,
+		BuildDate:     date,
+		Debug:         debuggingFlag,
+		BuildSource:   buildSource,
+		UserConfig:    userConfig,
+		UserConfigDir: filepath.Dir(userConfigPath),
+		AppState:      &AppState{},
+		IsNewRepo:     false,
+	}
+
+	if err := appConfig.LoadAppState(); err != nil {
+		return nil, err
+	}
+
+	return appConfig, nil
+}
+
+// GetIsNewRepo returns known repo boolean
+func (c *AppConfig) GetIsNewRepo() bool {
+	return c.IsNewRepo
+}
+
+// SetIsNewRepo set if the current repo is known
+func (c *AppConfig) SetIsNewRepo(toSet bool) {
+	c.IsNewRepo = toSet
+}
+
+// GetDebug returns debug flag
+func (c *AppConfig) GetDebug() bool {
+	return c.Debug
+}
+
+// GetVersion returns debug flag
+func (c *AppConfig) GetVersion() string {
+	return c.Version
+}
+
+// GetCommit returns debug flag
+func (c *AppConfig) GetCommit() string {
+	return c.Commit
+}
+
+// GetBuildDate returns debug flag
+func (c *AppConfig) GetBuildDate() string {
+	return c.BuildDate
+}
+
+// GetName returns debug flag
+func (c *AppConfig) GetName() string {
+	return c.Name
+}
+
+// GetBuildSource returns the source of the build. For builds from goreleaser
+// this will be binaryBuild
+func (c *AppConfig) GetBuildSource() string {
+	return c.BuildSource
+}
+
+// GetUserConfig returns the user config
+func (c *AppConfig) GetUserConfig() *viper.Viper {
+	return c.UserConfig
+}
+
+// GetAppState returns the app state
+func (c *AppConfig) GetAppState() *AppState {
+	return c.AppState
+}
+
+func (c *AppConfig) GetUserConfigDir() string {
+	return c.UserConfigDir
+}
+
+func newViper(filename string) (*viper.Viper, error) {
+	v := viper.New()
+	v.SetConfigType("yaml")
+	v.SetConfigName(filename)
+	return v, nil
+}
+
+// LoadConfig gets the user's config
+func LoadConfig(filename string, withDefaults bool) (*viper.Viper, string, error) {
+	v, err := newViper(filename)
+	if err != nil {
+		return nil, "", err
+	}
+	if withDefaults {
+		if err = LoadDefaults(v, GetDefaultConfig()); err != nil {
+			return nil, "", err
+		}
+		if err = LoadDefaults(v, GetPlatformDefaultConfig()); err != nil {
+			return nil, "", err
+		}
+	}
+	configPath, err := LoadAndMergeFile(v, filename+".yml")
+	if err != nil {
+		return nil, "", err
+	}
+	return v, configPath, nil
+}
+
+// LoadDefaults loads in the defaults defined in this file
+func LoadDefaults(v *viper.Viper, defaults []byte) error {
+	return v.MergeConfig(bytes.NewBuffer(defaults))
+}
+
+func prepareConfigFile(filename string) (string, error) {
+	// chucking my name there is not for vanity purposes, the xdg spec (and that
+	// function) requires a vendor name. May as well line up with github
+	configDirs := configdir.New("jesseduffield", "lazygit")
+	folder := configDirs.QueryFolderContainsFile(filename)
+	if folder == nil {
+		// create the file as empty
+		folders := configDirs.QueryFolders(configdir.Global)
+		if err := folders[0].WriteFile(filename, []byte{}); err != nil {
+			return "", err
+		}
+		folder = configDirs.QueryFolderContainsFile(filename)
+	}
+	return filepath.Join(folder.Path, filename), nil
+}
+
+// LoadAndMergeFile Loads the config/state file, creating
+// the file has an empty one if it does not exist
+func LoadAndMergeFile(v *viper.Viper, filename string) (string, error) {
+	configPath, err := prepareConfigFile(filename)
+	if err != nil {
+		return "", err
+	}
+
+	v.AddConfigPath(filepath.Dir(configPath))
+	return configPath, v.MergeInConfig()
+}
+
+// WriteToUserConfig adds a key/value pair to the user's config and saves it
+func (c *AppConfig) WriteToUserConfig(key string, value interface{}) error {
+	// reloading the user config directly (without defaults) so that we're not
+	// writing any defaults back to the user's config
+	v, _, err := LoadConfig("config", false)
+	if err != nil {
+		return err
+	}
+
+	v.Set(key, value)
+	return v.WriteConfig()
+}
+
+// SaveAppState marshalls the AppState struct and writes it to the disk
+func (c *AppConfig) SaveAppState() error {
+	marshalledAppState, err := yaml.Marshal(c.AppState)
+	if err != nil {
+		return err
+	}
+
+	filepath, err := prepareConfigFile("state.yml")
+	if err != nil {
+		return err
+	}
+
+	return ioutil.WriteFile(filepath, marshalledAppState, 0644)
+}
+
+// LoadAppState loads recorded AppState from file
+func (c *AppConfig) LoadAppState() error {
+	filepath, err := prepareConfigFile("state.yml")
+	if err != nil {
+		return err
+	}
+	appStateBytes, err := ioutil.ReadFile(filepath)
+	if err != nil {
+		return err
+	}
+	if len(appStateBytes) == 0 {
+		return yaml.Unmarshal(getDefaultAppState(), c.AppState)
+	}
+	return yaml.Unmarshal(appStateBytes, c.AppState)
+}
+
+// GetDefaultConfig returns the application default configuration
+func GetDefaultConfig() []byte {
+	return []byte(
+		`gui:
+  ## stuff relating to the UI
+  scrollHeight: 2
+  scrollPastBottom: true
+  mouseEvents: true
+  skipUnstageLineWarning: false
+  skipStashWarning: true
+  sidePanelWidth: 0.3333
+  expandFocusedSidePanel: false
+  mainPanelSplitMode: 'flexible' # one of 'horizontal' | 'flexible' | 'vertical'
+  theme:
+    lightTheme: false
+    activeBorderColor:
+      - green
+      - bold
+    inactiveBorderColor:
+      - white
+    optionsTextColor:
+      - blue
+    selectedLineBgColor:
+      - default
+    selectedRangeBgColor:
+      - blue
+  commitLength:
+    show: true
+git:
+  paging:
+    colorArg: always
+    useConfig: false
+  merging:
+    manualCommit: false
+    args: ""
+  pull:
+    mode: 'merge' # one of 'merge' | 'rebase' | 'ff-only'
+  skipHookPrefix: 'WIP'
+  autoFetch: true
+  branchLogCmd: "git log --graph --color=always --abbrev-commit --decorate --date=relative --pretty=medium {{branchName}} --"
+  overrideGpg: false # prevents lazygit from spawning a separate process when using GPG
+  disableForcePushing: false
+update:
+  method: prompt # can be: prompt | background | never
+  days: 14 # how often a update is checked for
+reporting: 'undetermined' # one of: 'on' | 'off' | 'undetermined'
+splashUpdatesIndex: 0
+confirmOnQuit: false
+quitOnTopLevelReturn: true
+keybinding:
+  universal:
+    quit: 'q'
+    quit-alt1: '<c-c>'
+    return: '<esc>'
+    quitWithoutChangingDirectory: 'Q'
+    togglePanel: '<tab>'
+    prevItem: '<up>'
+    nextItem: '<down>'
+    prevItem-alt: 'k'
+    nextItem-alt: 'j'
+    prevPage: ','
+    nextPage: '.'
+    gotoTop: '<'
+    gotoBottom: '>'
+    prevBlock: '<left>'
+    nextBlock: '<right>'
+    prevBlock-alt: 'h'
+    nextBlock-alt: 'l'
+    nextMatch: 'n'
+    prevMatch: 'N'
+    startSearch: '/'
+    optionMenu: 'x'
+    optionMenu-alt1: '?'
+    select: '<space>'
+    goInto: '<enter>'
+    confirm: '<enter>'
+    confirm-alt1: 'y'
+    remove: 'd'
+    new: 'n'
+    edit: 'e'
+    openFile: 'o'
+    scrollUpMain: '<pgup>'
+    scrollDownMain: '<pgdown>'
+    scrollUpMain-alt1: 'K'
+    scrollDownMain-alt1: 'J'
+    scrollUpMain-alt2: '<c-u>'
+    scrollDownMain-alt2: '<c-d>'
+    executeCustomCommand: ':'
+    createRebaseOptionsMenu: 'm'
+    pushFiles: 'P'
+    pullFiles: 'p'
+    refresh: 'R'
+    createPatchOptionsMenu: '<c-p>'
+    nextTab: ']'
+    prevTab: '['
+    nextScreenMode: '+'
+    prevScreenMode: '_'
+    undo: 'z'
+    redo: '<c-z>'
+    filteringMenu: <c-s>
+    diffingMenu: 'W'
+    diffingMenu-alt: '<c-e>'
+    copyToClipboard: '<c-o>'
+  status:
+    checkForUpdate: 'u'
+    recentRepos: '<enter>'
+  files:
+    commitChanges: 'c'
+    commitChangesWithoutHook: 'w'
+    amendLastCommit: 'A'
+    commitChangesWithEditor: 'C'
+    ignoreFile: 'i'
+    refreshFiles: 'r'
+    stashAllChanges: 's'
+    viewStashOptions: 'S'
+    toggleStagedAll: 'a'
+    viewResetOptions: 'D'
+    fetch: 'f'
+  branches:
+    createPullRequest: 'o'
+    checkoutBranchByName: 'c'
+    forceCheckoutBranch: 'F'
+    rebaseBranch: 'r'
+    renameBranch: 'R'
+    mergeIntoCurrentBranch: 'M'
+    viewGitFlowOptions: 'i'
+    fastForward: 'f'
+    pushTag: 'P'
+    setUpstream: 'u'
+    fetchRemote: 'f'
+  commits:
+    squashDown: 's'
+    renameCommit: 'r'
+    renameCommitWithEditor: 'R'
+    viewResetOptions: 'g'
+    markCommitAsFixup: 'f'
+    createFixupCommit: 'F'
+    squashAboveCommits: 'S'
+    moveDownCommit: '<c-j>'
+    moveUpCommit: '<c-k>'
+    amendToCommit: 'A'
+    pickCommit: 'p'
+    revertCommit: 't'
+    cherryPickCopy: 'c'
+    cherryPickCopyRange: 'C'
+    pasteCommits: 'v'
+    tagCommit: 'T'
+    checkoutCommit: '<space>'
+    resetCherryPick: '<c-R>'
+  stash:
+    popStash: 'g'
+  commitFiles:
+    checkoutCommitFile: 'c'
+  main:
+    toggleDragSelect: 'v'
+    toggleDragSelect-alt: 'V'
+    toggleSelectHunk: 'a'
+    pickBothHunks: 'b'
+`)
+}
+
+// AppState stores data between runs of the app like when the last update check
+// was performed and which other repos have been checked out
+type AppState struct {
+	LastUpdateCheck int64
+	RecentRepos     []string
+}
+
+func getDefaultAppState() []byte {
+	return []byte(`
+    lastUpdateCheck: 0
+    recentRepos: []
+  `)
+}
+
+// // commenting this out until we use it again
+// func homeDirectory() string {
+// 	usr, err := user.Current()
+// 	if err != nil {
+// 		log.Fatal(err)
+// 	}
+// 	return usr.HomeDir
+// }

pkg/config/config_default_platform.go

@@ -0,0 +1,11 @@
+// +build !windows,!linux
+
+package config
+
+// GetPlatformDefaultConfig gets the defaults for the platform
+func GetPlatformDefaultConfig() []byte {
+	return []byte(
+		`os:
+  openCommand: 'open {{filename}}'
+  openLinkCommand: 'open {{link}}'`)
+}

pkg/config/config_linux.go

@@ -0,0 +1,9 @@
+package config
+
+// GetPlatformDefaultConfig gets the defaults for the platform
+func GetPlatformDefaultConfig() []byte {
+	return []byte(
+		`os:
+  openCommand: 'sh -c "xdg-open {{filename}} >/dev/null"'
+  openLinkCommand: 'sh -c "xdg-open {{link}} >/dev/null"'`)
+}

pkg/config/config_windows.go

@@ -0,0 +1,9 @@
+package config
+
+// GetPlatformDefaultConfig gets the defaults for the platform
+func GetPlatformDefaultConfig() []byte {
+	return []byte(
+		`os:
+  openCommand: 'cmd /c "start "" {{filename}}"'
+  openLinkCommand: 'cmd /c "start "" {{link}}"'`)
+}

pkg/gui/app_status_manager.go

@@ -0,0 +1,81 @@
+package gui
+
+import (
+	"time"
+
+	"github.com/jesseduffield/gocui"
+	"github.com/jesseduffield/lazygit/pkg/utils"
+)
+
+type appStatus struct {
+	name       string
+	statusType string
+	duration   int
+}
+
+type statusManager struct {
+	statuses []appStatus
+}
+
+func (m *statusManager) removeStatus(name string) {
+	newStatuses := []appStatus{}
+	for _, status := range m.statuses {
+		if status.name != name {
+			newStatuses = append(newStatuses, status)
+		}
+	}
+	m.statuses = newStatuses
+}
+
+func (m *statusManager) addWaitingStatus(name string) {
+	m.removeStatus(name)
+	newStatus := appStatus{
+		name:       name,
+		statusType: "waiting",
+		duration:   0,
+	}
+	m.statuses = append([]appStatus{newStatus}, m.statuses...)
+}
+
+func (m *statusManager) getStatusString() string {
+	if len(m.statuses) == 0 {
+		return ""
+	}
+	topStatus := m.statuses[0]
+	if topStatus.statusType == "waiting" {
+		return topStatus.name + " " + utils.Loader()
+	}
+	return topStatus.name
+}
+
+// WithWaitingStatus wraps a function and shows a waiting status while the function is still executing
+func (gui *Gui) WithWaitingStatus(name string, f func() error) error {
+	go func() {
+		gui.statusManager.addWaitingStatus(name)
+
+		defer func() {
+			gui.statusManager.removeStatus(name)
+		}()
+
+		go func() {
+			ticker := time.NewTicker(time.Millisecond * 50)
+			defer ticker.Stop()
+			for range ticker.C {
+				appStatus := gui.statusManager.getStatusString()
+				gui.Log.Warn(appStatus)
+				if appStatus == "" {
+					return
+				}
+				gui.renderString("appStatus", appStatus)
+			}
+		}()
+
+		if err := f(); err != nil {
+			gui.g.Update(func(g *gocui.Gui) error {
+				return gui.surfaceError(err)
+			})
+		}
+	}()
+
+	return nil
+}

pkg/gui/arrangement.go

@@ -0,0 +1,280 @@
+package gui
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/gui/boxlayout"
+	"github.com/jesseduffield/lazygit/pkg/utils"
+)
+
+func (gui *Gui) mainSectionChildren() []*boxlayout.Box {
+	currentWindow := gui.currentWindow()
+
+	// if we're not in split mode we can just show the one main panel. Likewise if
+	// the main panel is focused and we're in full-screen mode
+	if !gui.isMainPanelSplit() || (gui.State.ScreenMode == SCREEN_FULL && currentWindow == "main") {
+		return []*boxlayout.Box{
+			{
+				Window: "main",
+				Weight: 1,
+			},
+		}
+	}
+
+	main := "main"
+	secondary := "secondary"
+	if gui.secondaryViewFocused() {
+		// when you think you've focused the secondary view, we've actually just swapped them around in the layout
+		main, secondary = secondary, main
+	}
+
+	return []*boxlayout.Box{
+		{
+			Window: main,
+			Weight: 1,
+		},
+		{
+			Window: secondary,
+			Weight: 1,
+		},
+	}
+}
+
+func (gui *Gui) getMidSectionWeights() (int, int) {
+	currentWindow := gui.currentWindow()
+
+	// we originally specified this as a ratio i.e. .20 would correspond to a weight of 1 against 4
+	sidePanelWidthRatio := gui.Config.GetUserConfig().GetFloat64("gui.sidePanelWidth")
+	// we could make this better by creating ratios like 2:3 rather than always 1:something
+	mainSectionWeight := int(1/sidePanelWidthRatio) - 1
+	sideSectionWeight := 1
+
+	if gui.isMainPanelSplit() {
+		mainSectionWeight = 5 // need to shrink side panel to make way for main panels if side-by-side
+	}
+
+	if currentWindow == "main" {
+		if gui.State.ScreenMode == SCREEN_HALF || gui.State.ScreenMode == SCREEN_FULL {
+			sideSectionWeight = 0
+		}
+	} else {
+		if gui.State.ScreenMode == SCREEN_HALF {
+			mainSectionWeight = 1
+		} else if gui.State.ScreenMode == SCREEN_FULL {
+			mainSectionWeight = 0
+		}
+	}
+
+	return sideSectionWeight, mainSectionWeight
+}
+
+func (gui *Gui) infoSectionChildren(informationStr string, appStatus string) []*boxlayout.Box {
+	if gui.State.Searching.isSearching {
+		return []*boxlayout.Box{
+			{
+				Window: "searchPrefix",
+				Size:   len(SEARCH_PREFIX),
+			},
+			{
+				Window: "search",
+				Weight: 1,
+			},
+		}
+	}
+
+	result := []*boxlayout.Box{}
+
+	if len(appStatus) > 0 {
+		result = append(result,
+			&boxlayout.Box{
+				Window: "appStatus",
+				Size:   len(appStatus) + len(INFO_SECTION_PADDING),
+			},
+		)
+	}
+
+	result = append(result,
+		[]*boxlayout.Box{
+			{
+				Window: "options",
+				Weight: 1,
+			},
+			{
+				Window: "information",
+				// unlike appStatus, informationStr has various colors so we need to decolorise before taking the length
+				Size: len(INFO_SECTION_PADDING) + len(utils.Decolorise(informationStr)),
+			},
+		}...,
+	)
+
+	return result
+}
+
+func (gui *Gui) getWindowDimensions(informationStr string, appStatus string) map[string]boxlayout.Dimensions {
+	width, height := gui.g.Size()
+
+	sideSectionWeight, mainSectionWeight := gui.getMidSectionWeights()
+
+	sidePanelsDirection := boxlayout.COLUMN
+	portraitMode := width <= 84 && height > 45
+	if portraitMode {
+		sidePanelsDirection = boxlayout.ROW
+	}
+
+	root := &boxlayout.Box{
+		Direction: boxlayout.ROW,
+		Children: []*boxlayout.Box{
+			{
+				Direction: sidePanelsDirection,
+				Weight:    1,
+				Children: []*boxlayout.Box{
+					{
+						Direction:           boxlayout.ROW,
+						Weight:              sideSectionWeight,
+						ConditionalChildren: gui.sidePanelChildren,
+					},
+					{
+						ConditionalDirection: func(width int, height int) int {
+							mainPanelSplitMode := gui.Config.GetUserConfig().GetString("gui.mainPanelSplitMode")
+
+							switch mainPanelSplitMode {
+							case "vertical":
+								return boxlayout.ROW
+							case "horizontal":
+								return boxlayout.COLUMN
+							default:
+								if width < 160 && height > 30 { // 2 80 character width panels
+									return boxlayout.ROW
+								} else {
+									return boxlayout.COLUMN
+								}
+							}
+						},
+						Direction: boxlayout.COLUMN,
+						Weight:    mainSectionWeight,
+						Children:  gui.mainSectionChildren(),
+					},
+				},
+			},
+			{
+				Direction: boxlayout.COLUMN,
+				Size:      1,
+				Children:  gui.infoSectionChildren(informationStr, appStatus),
+			},
+		},
+	}
+
+	return boxlayout.ArrangeWindows(root, 0, 0, width, height)
+}
+
+// The stash window by default only contains one line so that it's not hogging
+// too much space, but if you access it it should take up some space. This is
+// the default behaviour when accordian mode is NOT in effect. If it is in effect
+// then when it's accessed it will have weight 2, not 1.
+func (gui *Gui) getDefaultStashWindowBox() *boxlayout.Box {
+	box := &boxlayout.Box{Window: "stash"}
+	stashWindowAccessed := false
+	for _, context := range gui.State.ContextStack {
+		if context.GetWindowName() == "stash" {
+			stashWindowAccessed = true
+		}
+	}
+	// if the stash window is anywhere in our stack we should enlargen it
+	if stashWindowAccessed {
+		box.Weight = 1
+	} else {
+		box.Size = 3
+	}
+
+	return box
+}
+
+func (gui *Gui) sidePanelChildren(width int, height int) []*boxlayout.Box {
+	currentWindow := gui.currentSideWindowName()
+
+	if gui.State.ScreenMode == SCREEN_FULL || gui.State.ScreenMode == SCREEN_HALF {
+		fullHeightBox := func(window string) *boxlayout.Box {
+			if window == currentWindow {
+				return &boxlayout.Box{
+					Window: window,
+					Weight: 1,
+				}
+			} else {
+				return &boxlayout.Box{
+					Window: window,
+					Size:   0,
+				}
+			}
+		}
+
+		return []*boxlayout.Box{
+			fullHeightBox("status"),
+			fullHeightBox("files"),
+			fullHeightBox("branches"),
+			fullHeightBox("commits"),
+			fullHeightBox("stash"),
+		}
+	} else if height >= 28 {
+		accordianMode := gui.Config.GetUserConfig().GetBool("gui.expandFocusedSidePanel")
+		accordianBox := func(defaultBox *boxlayout.Box) *boxlayout.Box {
+			if accordianMode && defaultBox.Window == currentWindow {
+				return &boxlayout.Box{
+					Window: defaultBox.Window,
+					Weight: 2,
+				}
+			}
+
+			return defaultBox
+		}
+
+		return []*boxlayout.Box{
+			{
+				Window: "status",
+				Size:   3,
+			},
+			accordianBox(&boxlayout.Box{Window: "files", Weight: 1}),
+			accordianBox(&boxlayout.Box{Window: "branches", Weight: 1}),
+			accordianBox(&boxlayout.Box{Window: "commits", Weight: 1}),
+			accordianBox(gui.getDefaultStashWindowBox()),
+		}
+	} else {
+		squashedHeight := 1
+		if height >= 21 {
+			squashedHeight = 3
+		}
+
+		squashedSidePanelBox := func(window string) *boxlayout.Box {
+			if window == currentWindow {
+				return &boxlayout.Box{
+					Window: window,
+					Weight: 1,
+				}
+			} else {
+				return &boxlayout.Box{
+					Window: window,
+					Size:   squashedHeight,
+				}
+			}
+		}
+
+		return []*boxlayout.Box{
+			squashedSidePanelBox("status"),
+			squashedSidePanelBox("files"),
+			squashedSidePanelBox("branches"),
+			squashedSidePanelBox("commits"),
+			squashedSidePanelBox("stash"),
+		}
+	}
+}
+
+func (gui *Gui) currentSideWindowName() string {
+	// there is always one and only one cyclable context in the context stack. We'll look from top to bottom
+	for idx := range gui.State.ContextStack {
+		reversedIdx := len(gui.State.ContextStack) - 1 - idx
+		context := gui.State.ContextStack[reversedIdx]
+
+		if context.GetKind() == SIDE_CONTEXT {
+			return context.GetWindowName()
+		}
+	}
+
+	return "files" // default
+}

pkg/gui/boxlayout/boxlayout.go

@@ -0,0 +1,145 @@
+package boxlayout
+
+import "math"
+
+type Dimensions struct {
+	X0 int
+	X1 int
+	Y0 int
+	Y1 int
+}
+
+const (
+	ROW = iota
+	COLUMN
+)
+
+// to give a high-level explanation of what's going on here. We layout our windows by arranging a bunch of boxes in the available space.
+// If a box has children, it needs to specify how it wants to arrange those children: ROW or COLUMN.
+// If a box represents a window, you can put the window name in the Window field.
+// When determining how to divvy-up the available height (for row children) or width (for column children), we first
+// give the boxes with a static `size` the space that they want. Then we apportion
+// the remaining space based on the weights of the dynamic boxes (you can't define
+// both size and weight at the same time: you gotta pick one). If there are two
+// boxes, one with weight 1 and the other with weight 2, the first one gets 33%
+// of the available space and the second one gets the remaining 66%
+
+type Box struct {
+	// Direction decides how the children boxes are laid out. ROW means the children will each form a row i.e. that they will be stacked on top of eachother.
+	Direction int // ROW or COLUMN
+
+	// function which takes the width and height assigned to the box and decides which orientation it will have
+	ConditionalDirection func(width int, height int) int
+
+	Children []*Box
+
+	// function which takes the width and height assigned to the box and decides the layout of the children.
+	ConditionalChildren func(width int, height int) []*Box
+
+	// Window refers to the name of the window this box represents, if there is one
+	Window string
+
+	// static Size. If parent box's direction is ROW this refers to height, otherwise width
+	Size int
+
+	// dynamic size. Once all statically sized children have been considered, Weight decides how much of the remaining space will be taken up by the box
+	// TODO: consider making there be one int and a type enum so we can't have size and Weight simultaneously defined
+	Weight int
+}
+
+func ArrangeWindows(root *Box, x0, y0, width, height int) map[string]Dimensions {
+	children := root.getChildren(width, height)
+	if len(children) == 0 {
+		// leaf node
+		if root.Window != "" {
+			dimensionsForWindow := Dimensions{X0: x0, Y0: y0, X1: x0 + width - 1, Y1: y0 + height - 1}
+			return map[string]Dimensions{root.Window: dimensionsForWindow}
+		}
+		return map[string]Dimensions{}
+	}
+
+	direction := root.getDirection(width, height)
+
+	var availableSize int
+	if direction == COLUMN {
+		availableSize = width
+	} else {
+		availableSize = height
+	}
+
+	// work out size taken up by children
+	reservedSize := 0
+	totalWeight := 0
+	for _, child := range children {
+		// assuming either size or weight are non-zero
+		reservedSize += child.Size
+		totalWeight += child.Weight
+	}
+
+	remainingSize := availableSize - reservedSize
+	if remainingSize < 0 {
+		remainingSize = 0
+	}
+
+	unitSize := 0
+	extraSize := 0
+	if totalWeight > 0 {
+		unitSize = remainingSize / totalWeight
+		extraSize = remainingSize % totalWeight
+	}
+
+	result := map[string]Dimensions{}
+	offset := 0
+	for _, child := range children {
+		var boxSize int
+		if child.isStatic() {
+			boxSize = child.Size
+		} else {
+			// TODO: consider more evenly distributing the remainder
+			boxSize = unitSize * child.Weight
+			boxExtraSize := int(math.Min(float64(extraSize), float64(child.Weight)))
+			boxSize += boxExtraSize
+			extraSize -= boxExtraSize
+		}
+
+		var resultForChild map[string]Dimensions
+		if direction == COLUMN {
+			resultForChild = ArrangeWindows(child, x0+offset, y0, boxSize, height)
+		} else {
+			resultForChild = ArrangeWindows(child, x0, y0+offset, width, boxSize)
+		}
+
+		result = mergeDimensionMaps(result, resultForChild)
+		offset += boxSize
+	}
+
+	return result
+}
+
+func (b *Box) isStatic() bool {
+	return b.Size > 0
+}
+
+func (b *Box) getDirection(width int, height int) int {
+	if b.ConditionalDirection != nil {
+		return b.ConditionalDirection(width, height)
+	}
+	return b.Direction
+}
+
+func (b *Box) getChildren(width int, height int) []*Box {
+	if b.ConditionalChildren != nil {
+		return b.ConditionalChildren(width, height)
+	}
+	return b.Children
+}
+
+func mergeDimensionMaps(a map[string]Dimensions, b map[string]Dimensions) map[string]Dimensions {
+	result := map[string]Dimensions{}
+	for _, dimensionMap := range []map[string]Dimensions{a, b} {
+		for k, v := range dimensionMap {
+			result[k] = v
+		}
+	}
+	return result
+}

pkg/gui/boxlayout/boxlayout_test.go

@@ -0,0 +1,189 @@
+package boxlayout
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestArrangeWindows(t *testing.T) {
+	type scenario struct {
+		testName string
+		root     *Box
+		x0       int
+		y0       int
+		width    int
+		height   int
+		test     func(result map[string]Dimensions)
+	}
+
+	scenarios := []scenario{
+		{
+			"Empty box",
+			&Box{},
+			0,
+			0,
+			10,
+			10,
+			func(result map[string]Dimensions) {
+				assert.EqualValues(t, result, map[string]Dimensions{})
+			},
+		},
+		{
+			"Box with static and dynamic panel",
+			&Box{Children: []*Box{{Size: 1, Window: "static"}, {Weight: 1, Window: "dynamic"}}},
+			0,
+			0,
+			10,
+			10,
+			func(result map[string]Dimensions) {
+				assert.EqualValues(
+					t,
+					result,
+					map[string]Dimensions{
+						"dynamic": {X0: 0, X1: 9, Y0: 1, Y1: 9},
+						"static":  {X0: 0, X1: 9, Y0: 0, Y1: 0},
+					},
+				)
+			},
+		},
+		{
+			"Box with static and two dynamic panels",
+			&Box{Children: []*Box{{Size: 1, Window: "static"}, {Weight: 1, Window: "dynamic1"}, {Weight: 2, Window: "dynamic2"}}},
+			0,
+			0,
+			10,
+			10,
+			func(result map[string]Dimensions) {
+				assert.EqualValues(
+					t,
+					result,
+					map[string]Dimensions{
+						"static":   {X0: 0, X1: 9, Y0: 0, Y1: 0},
+						"dynamic1": {X0: 0, X1: 9, Y0: 1, Y1: 3},
+						"dynamic2": {X0: 0, X1: 9, Y0: 4, Y1: 9},
+					},
+				)
+			},
+		},
+		{
+			"Box with COLUMN direction",
+			&Box{Direction: COLUMN, Children: []*Box{{Size: 1, Window: "static"}, {Weight: 1, Window: "dynamic1"}, {Weight: 2, Window: "dynamic2"}}},
+			0,
+			0,
+			10,
+			10,
+			func(result map[string]Dimensions) {
+				assert.EqualValues(
+					t,
+					result,
+					map[string]Dimensions{
+						"static":   {X0: 0, X1: 0, Y0: 0, Y1: 9},
+						"dynamic1": {X0: 1, X1: 3, Y0: 0, Y1: 9},
+						"dynamic2": {X0: 4, X1: 9, Y0: 0, Y1: 9},
+					},
+				)
+			},
+		},
+		{
+			"Box with COLUMN direction only on wide boxes with narrow box",
+			&Box{ConditionalDirection: func(width int, height int) int {
+				if width > 4 {
+					return COLUMN
+				} else {
+					return ROW
+				}
+			}, Children: []*Box{{Weight: 1, Window: "dynamic1"}, {Weight: 1, Window: "dynamic2"}}},
+			0,
+			0,
+			4,
+			4,
+			func(result map[string]Dimensions) {
+				assert.EqualValues(
+					t,
+					result,
+					map[string]Dimensions{
+						"dynamic1": {X0: 0, X1: 3, Y0: 0, Y1: 1},
+						"dynamic2": {X0: 0, X1: 3, Y0: 2, Y1: 3},
+					},
+				)
+			},
+		},
+		{
+			"Box with COLUMN direction only on wide boxes with wide box",
+			&Box{ConditionalDirection: func(width int, height int) int {
+				if width > 4 {
+					return COLUMN
+				} else {
+					return ROW
+				}
+			}, Children: []*Box{{Weight: 1, Window: "dynamic1"}, {Weight: 1, Window: "dynamic2"}}},
+			0,
+			0,
+			5,
+			5,
+			func(result map[string]Dimensions) {
+				assert.EqualValues(
+					t,
+					result,
+					map[string]Dimensions{
+						"dynamic1": {X0: 0, X1: 2, Y0: 0, Y1: 4},
+						"dynamic2": {X0: 3, X1: 4, Y0: 0, Y1: 4},
+					},
+				)
+			},
+		},
+		{
+			"Box with conditional children where box is wide",
+			&Box{ConditionalChildren: func(width int, height int) []*Box {
+				if width > 4 {
+					return []*Box{{Window: "wide", Weight: 1}}
+				} else {
+					return []*Box{{Window: "narrow", Weight: 1}}
+				}
+			}},
+			0,
+			0,
+			5,
+			5,
+			func(result map[string]Dimensions) {
+				assert.EqualValues(
+					t,
+					result,
+					map[string]Dimensions{
+						"wide": {X0: 0, X1: 4, Y0: 0, Y1: 4},
+					},
+				)
+			},
+		},
+		{
+			"Box with conditional children where box is narrow",
+			&Box{ConditionalChildren: func(width int, height int) []*Box {
+				if width > 4 {
+					return []*Box{{Window: "wide", Weight: 1}}
+				} else {
+					return []*Box{{Window: "narrow", Weight: 1}}
+				}
+			}},
+			0,
+			0,
+			4,
+			4,
+			func(result map[string]Dimensions) {
+				assert.EqualValues(
+					t,
+					result,
+					map[string]Dimensions{
+						"narrow": {X0: 0, X1: 3, Y0: 0, Y1: 3},
+					},
+				)
+			},
+		},
+	}
+
+	for _, s := range scenarios {
+		t.Run(s.testName, func(t *testing.T) {
+			s.test(ArrangeWindows(s.root, s.x0, s.y0, s.width, s.height))
+		})
+	}
+}

pkg/gui/branches_panel.go

@@ -0,0 +1,497 @@
+package gui
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/jesseduffield/gocui"
+	"github.com/jesseduffield/lazygit/pkg/commands"
+)
+
+// list panel functions
+
+func (gui *Gui) getSelectedBranch() *commands.Branch {
+	if len(gui.State.Branches) == 0 {
+		return nil
+	}
+
+	selectedLine := gui.State.Panels.Branches.SelectedLineIdx
+	if selectedLine == -1 {
+		return nil
+	}
+
+	return gui.State.Branches[selectedLine]
+}
+
+func (gui *Gui) handleBranchSelect() error {
+	var task updateTask
+	branch := gui.getSelectedBranch()
+	if branch == nil {
+		task = gui.createRenderStringTask(gui.Tr.SLocalize("NoBranchesThisRepo"))
+	} else {
+		cmd := gui.OSCommand.ExecutableFromString(
+			gui.GitCommand.GetBranchGraphCmdStr(branch.Name),
+		)
+
+		task = gui.createRunPtyTask(cmd)
+	}
+
+	return gui.refreshMainViews(refreshMainOpts{
+		main: &viewUpdateOpts{
+			title: "Log",
+			task:  task,
+		},
+	})
+}
+
+// gui.refreshStatus is called at the end of this because that's when we can
+// be sure there is a state.Branches array to pick the current branch from
+func (gui *Gui) refreshBranches() {
+	reflogCommits := gui.State.FilteredReflogCommits
+	if gui.State.Modes.Filtering.Active() {
+		// in filter mode we filter our reflog commits to just those containing the path
+		// however we need all the reflog entries to populate the recencies of our branches
+		// which allows us to order them correctly. So if we're filtering we'll just
+		// manually load all the reflog commits here
+		var err error
+		reflogCommits, _, err = gui.GitCommand.GetReflogCommits(nil, "")
+		if err != nil {
+			gui.Log.Error(err)
+		}
+	}
+
+	builder, err := commands.NewBranchListBuilder(gui.Log, gui.GitCommand, reflogCommits)
+	if err != nil {
+		_ = gui.surfaceError(err)
+	}
+	gui.State.Branches = builder.Build()
+
+	if err := gui.postRefreshUpdate(gui.Contexts.Branches.Context); err != nil {
+		gui.Log.Error(err)
+	}
+
+	gui.refreshStatus()
+}
+
+// specific functions
+
+func (gui *Gui) handleBranchPress(g *gocui.Gui, v *gocui.View) error {
+	if gui.State.Panels.Branches.SelectedLineIdx == -1 {
+		return nil
+	}
+	if gui.State.Panels.Branches.SelectedLineIdx == 0 {
+		return gui.createErrorPanel(gui.Tr.SLocalize("AlreadyCheckedOutBranch"))
+	}
+	branch := gui.getSelectedBranch()
+	return gui.handleCheckoutRef(branch.Name, handleCheckoutRefOptions{})
+}
+
+func (gui *Gui) handleCreatePullRequestPress(g *gocui.Gui, v *gocui.View) error {
+	pullRequest := commands.NewPullRequest(gui.GitCommand)
+
+	branch := gui.getSelectedBranch()
+	if err := pullRequest.Create(branch); err != nil {
+		return gui.surfaceError(err)
+	}
+
+	return nil
+}
+
+func (gui *Gui) handleGitFetch(g *gocui.Gui, v *gocui.View) error {
+	if err := gui.createLoaderPanel(v, gui.Tr.SLocalize("FetchWait")); err != nil {
+		return err
+	}
+	go func() {
+		err := gui.fetch(true)
+		gui.handleCredentialsPopup(err)
+		_ = gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+	}()
+	return nil
+}
+
+func (gui *Gui) handleForceCheckout(g *gocui.Gui, v *gocui.View) error {
+	branch := gui.getSelectedBranch()
+	message := gui.Tr.SLocalize("SureForceCheckout")
+	title := gui.Tr.SLocalize("ForceCheckoutBranch")
+
+	return gui.ask(askOpts{
+		title:  title,
+		prompt: message,
+		handleConfirm: func() error {
+			if err := gui.GitCommand.Checkout(branch.Name, commands.CheckoutOptions{Force: true}); err != nil {
+				_ = gui.surfaceError(err)
+			}
+			return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+		},
+	})
+}
+
+type handleCheckoutRefOptions struct {
+	WaitingStatus string
+	EnvVars       []string
+	onRefNotFound func(ref string) error
+}
+
+func (gui *Gui) handleCheckoutRef(ref string, options handleCheckoutRefOptions) error {
+	waitingStatus := options.WaitingStatus
+	if waitingStatus == "" {
+		waitingStatus = gui.Tr.SLocalize("CheckingOutStatus")
+	}
+
+	cmdOptions := commands.CheckoutOptions{Force: false, EnvVars: options.EnvVars}
+
+	onSuccess := func() {
+		gui.State.Panels.Branches.SelectedLineIdx = 0
+		gui.State.Panels.Commits.SelectedLineIdx = 0
+		// loading a heap of commits is slow so we limit them whenever doing a reset
+		gui.State.Panels.Commits.LimitCommits = true
+	}
+
+	return gui.WithWaitingStatus(waitingStatus, func() error {
+		if err := gui.GitCommand.Checkout(ref, cmdOptions); err != nil {
+			// note, this will only work for english-language git commands. If we force git to use english, and the error isn't this one, then the user will receive an english command they may not understand. I'm not sure what the best solution to this is. Running the command once in english and a second time in the native language is one option
+
+			if options.onRefNotFound != nil && strings.Contains(err.Error(), "did not match any file(s) known to git") {
+				return options.onRefNotFound(ref)
+			}
+
+			if strings.Contains(err.Error(), "Please commit your changes or stash them before you switch branch") {
+				// offer to autostash changes
+				return gui.ask(askOpts{
+
+					title:  gui.Tr.SLocalize("AutoStashTitle"),
+					prompt: gui.Tr.SLocalize("AutoStashPrompt"),
+					handleConfirm: func() error {
+						if err := gui.GitCommand.StashSave(gui.Tr.SLocalize("StashPrefix") + ref); err != nil {
+							return gui.surfaceError(err)
+						}
+						if err := gui.GitCommand.Checkout(ref, cmdOptions); err != nil {
+							return gui.surfaceError(err)
+						}
+
+						onSuccess()
+						if err := gui.GitCommand.StashDo(0, "pop"); err != nil {
+							if err := gui.refreshSidePanels(refreshOptions{mode: BLOCK_UI}); err != nil {
+								return err
+							}
+							return gui.surfaceError(err)
+						}
+						return gui.refreshSidePanels(refreshOptions{mode: BLOCK_UI})
+					},
+				})
+			}
+
+			if err := gui.surfaceError(err); err != nil {
+				return err
+			}
+		}
+		onSuccess()
+
+		return gui.refreshSidePanels(refreshOptions{mode: BLOCK_UI})
+	})
+}
+
+func (gui *Gui) handleCheckoutByName(g *gocui.Gui, v *gocui.View) error {
+	return gui.prompt(gui.Tr.SLocalize("BranchName")+":", "", func(response string) error {
+		return gui.handleCheckoutRef(response, handleCheckoutRefOptions{
+			onRefNotFound: func(ref string) error {
+
+				return gui.ask(askOpts{
+
+					title:  gui.Tr.SLocalize("BranchNotFoundTitle"),
+					prompt: fmt.Sprintf("%s %s%s", gui.Tr.SLocalize("BranchNotFoundPrompt"), ref, "?"),
+					handleConfirm: func() error {
+						return gui.createNewBranchWithName(ref)
+					},
+				})
+			},
+		})
+	})
+}
+
+func (gui *Gui) getCheckedOutBranch() *commands.Branch {
+	if len(gui.State.Branches) == 0 {
+		return nil
+	}
+
+	return gui.State.Branches[0]
+}
+
+func (gui *Gui) createNewBranchWithName(newBranchName string) error {
+	branch := gui.getSelectedBranch()
+	if branch == nil {
+		return nil
+	}
+
+	if err := gui.GitCommand.NewBranch(newBranchName, branch.Name); err != nil {
+		return gui.surfaceError(err)
+	}
+
+	gui.State.Panels.Branches.SelectedLineIdx = 0
+	return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+}
+
+func (gui *Gui) handleDeleteBranch(g *gocui.Gui, v *gocui.View) error {
+	return gui.deleteBranch(false)
+}
+
+func (gui *Gui) deleteBranch(force bool) error {
+	selectedBranch := gui.getSelectedBranch()
+	if selectedBranch == nil {
+		return nil
+	}
+	checkedOutBranch := gui.getCheckedOutBranch()
+	if checkedOutBranch.Name == selectedBranch.Name {
+		return gui.createErrorPanel(gui.Tr.SLocalize("CantDeleteCheckOutBranch"))
+	}
+	return gui.deleteNamedBranch(selectedBranch, force)
+}
+
+func (gui *Gui) deleteNamedBranch(selectedBranch *commands.Branch, force bool) error {
+	title := gui.Tr.SLocalize("DeleteBranch")
+	var messageID string
+	if force {
+		messageID = "ForceDeleteBranchMessage"
+	} else {
+		messageID = "DeleteBranchMessage"
+	}
+	message := gui.Tr.TemplateLocalize(
+		messageID,
+		Teml{
+			"selectedBranchName": selectedBranch.Name,
+		},
+	)
+
+	return gui.ask(askOpts{
+
+		title:  title,
+		prompt: message,
+		handleConfirm: func() error {
+			if err := gui.GitCommand.DeleteBranch(selectedBranch.Name, force); err != nil {
+				errMessage := err.Error()
+				if !force && strings.Contains(errMessage, "is not fully merged") {
+					return gui.deleteNamedBranch(selectedBranch, true)
+				}
+				return gui.createErrorPanel(errMessage)
+			}
+			return gui.refreshSidePanels(refreshOptions{mode: ASYNC, scope: []int{BRANCHES}})
+		},
+	})
+}
+
+func (gui *Gui) mergeBranchIntoCheckedOutBranch(branchName string) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	if gui.GitCommand.IsHeadDetached() {
+		return gui.createErrorPanel("Cannot merge branch in detached head state. You might have checked out a commit directly or a remote branch, in which case you should checkout the local branch you want to be on")
+	}
+	checkedOutBranchName := gui.getCheckedOutBranch().Name
+	if checkedOutBranchName == branchName {
+		return gui.createErrorPanel(gui.Tr.SLocalize("CantMergeBranchIntoItself"))
+	}
+	prompt := gui.Tr.TemplateLocalize(
+		"ConfirmMerge",
+		Teml{
+			"checkedOutBranch": checkedOutBranchName,
+			"selectedBranch":   branchName,
+		},
+	)
+
+	return gui.ask(askOpts{
+
+		title:  gui.Tr.SLocalize("MergingTitle"),
+		prompt: prompt,
+		handleConfirm: func() error {
+			err := gui.GitCommand.Merge(branchName, commands.MergeOpts{})
+			return gui.handleGenericMergeCommandResult(err)
+		},
+	})
+}
+
+func (gui *Gui) handleMerge(g *gocui.Gui, v *gocui.View) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	selectedBranchName := gui.getSelectedBranch().Name
+	return gui.mergeBranchIntoCheckedOutBranch(selectedBranchName)
+}
+
+func (gui *Gui) handleRebaseOntoLocalBranch(g *gocui.Gui, v *gocui.View) error {
+	selectedBranchName := gui.getSelectedBranch().Name
+	return gui.handleRebaseOntoBranch(selectedBranchName)
+}
+
+func (gui *Gui) handleRebaseOntoBranch(selectedBranchName string) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	checkedOutBranch := gui.getCheckedOutBranch().Name
+	if selectedBranchName == checkedOutBranch {
+		return gui.createErrorPanel(gui.Tr.SLocalize("CantRebaseOntoSelf"))
+	}
+	prompt := gui.Tr.TemplateLocalize(
+		"ConfirmRebase",
+		Teml{
+			"checkedOutBranch": checkedOutBranch,
+			"selectedBranch":   selectedBranchName,
+		},
+	)
+
+	return gui.ask(askOpts{
+
+		title:  gui.Tr.SLocalize("RebasingTitle"),
+		prompt: prompt,
+		handleConfirm: func() error {
+			err := gui.GitCommand.RebaseBranch(selectedBranchName)
+			return gui.handleGenericMergeCommandResult(err)
+		},
+	})
+}
+
+func (gui *Gui) handleFastForward(g *gocui.Gui, v *gocui.View) error {
+	branch := gui.getSelectedBranch()
+	if branch == nil {
+		return nil
+	}
+	if branch.Pushables == "" {
+		return nil
+	}
+	if branch.Pushables == "?" {
+		return gui.createErrorPanel(gui.Tr.SLocalize("FwdNoUpstream"))
+	}
+	if branch.Pushables != "0" {
+		return gui.createErrorPanel(gui.Tr.SLocalize("FwdCommitsToPush"))
+	}
+
+	upstream, err := gui.GitCommand.GetUpstreamForBranch(branch.Name)
+	if err != nil {
+		return gui.surfaceError(err)
+	}
+
+	split := strings.Split(upstream, "/")
+	remoteName := split[0]
+	remoteBranchName := strings.Join(split[1:], "/")
+
+	message := gui.Tr.TemplateLocalize(
+		"Fetching",
+		Teml{
+			"from": fmt.Sprintf("%s/%s", remoteName, remoteBranchName),
+			"to":   branch.Name,
+		},
+	)
+	go func() {
+		_ = gui.createLoaderPanel(v, message)
+
+		if gui.State.Panels.Branches.SelectedLineIdx == 0 {
+			_ = gui.pullWithMode("ff-only", PullFilesOptions{})
+		} else {
+			err := gui.GitCommand.FastForward(branch.Name, remoteName, remoteBranchName, gui.promptUserForCredential)
+			gui.handleCredentialsPopup(err)
+			_ = gui.refreshSidePanels(refreshOptions{mode: ASYNC, scope: []int{BRANCHES}})
+		}
+	}()
+	return nil
+}
+
+func (gui *Gui) handleCreateResetToBranchMenu(g *gocui.Gui, v *gocui.View) error {
+	branch := gui.getSelectedBranch()
+	if branch == nil {
+		return nil
+	}
+
+	return gui.createResetMenu(branch.Name)
+}
+
+func (gui *Gui) handleRenameBranch(g *gocui.Gui, v *gocui.View) error {
+	branch := gui.getSelectedBranch()
+	if branch == nil {
+		return nil
+	}
+
+	// TODO: find a way to not checkout the branch here if it's not the current branch (i.e. find some
+	// way to get it to show up in the reflog)
+
+	promptForNewName := func() error {
+		return gui.prompt(gui.Tr.SLocalize("NewBranchNamePrompt")+" "+branch.Name+":", "", func(newBranchName string) error {
+			if err := gui.GitCommand.RenameBranch(branch.Name, newBranchName); err != nil {
+				return gui.surfaceError(err)
+			}
+			// need to checkout so that the branch shows up in our reflog and therefore
+			// doesn't get lost among all the other branches when we switch to something else
+			if err := gui.GitCommand.Checkout(newBranchName, commands.CheckoutOptions{Force: false}); err != nil {
+				return gui.surfaceError(err)
+			}
+
+			return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+		})
+	}
+
+	// I could do an explicit check here for whether the branch is tracking a remote branch
+	// but if we've selected it we'll already know that via Pullables and Pullables.
+	// Bit of a hack but I'm lazy.
+	notTrackingRemote := branch.Pullables == "?"
+	if notTrackingRemote {
+		return promptForNewName()
+	}
+
+	return gui.ask(askOpts{
+
+		title:         gui.Tr.SLocalize("renameBranch"),
+		prompt:        gui.Tr.SLocalize("RenameBranchWarning"),
+		handleConfirm: promptForNewName,
+	})
+}
+
+func (gui *Gui) currentBranch() *commands.Branch {
+	if len(gui.State.Branches) == 0 {
+		return nil
+	}
+	return gui.State.Branches[0]
+}
+
+func (gui *Gui) handleNewBranchOffCurrentItem() error {
+	context := gui.currentSideContext()
+
+	item, ok := context.GetSelectedItem()
+	if !ok {
+		return nil
+	}
+
+	message := gui.Tr.TemplateLocalize(
+		"NewBranchNameBranchOff",
+		Teml{
+			"branchName": item.Description(),
+		},
+	)
+
+	prefilledName := ""
+	if context.GetKey() == REMOTE_BRANCHES_CONTEXT_KEY {
+		// will set to the remote's existing name
+		prefilledName = item.ID()
+	}
+	return gui.prompt(message, prefilledName, func(response string) error {
+		if err := gui.GitCommand.NewBranch(response, item.ID()); err != nil {
+			return err
+		}
+
+		// if we're currently in the branch commits context then the selected commit
+		// is about to go to the top of the list
+		if context.GetKey() == BRANCH_COMMITS_CONTEXT_KEY {
+			context.GetPanelState().SetSelectedLineIdx(0)
+		}
+
+		if context.GetKey() != gui.Contexts.Branches.Context.GetKey() {
+			if err := gui.switchContext(gui.Contexts.Branches.Context); err != nil {
+				return err
+			}
+		}
+
+		gui.State.Panels.Branches.SelectedLineIdx = 0
+
+		return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+	})
+}

pkg/gui/cherry_picking.go

@@ -0,0 +1,196 @@
+package gui
+
+import (
+	"github.com/jesseduffield/lazygit/pkg/commands"
+)
+
+// you can only copy from one context at a time, because the order and position of commits matter
+
+func (gui *Gui) resetCherryPickingIfNecessary(context Context) error {
+	oldContextKey := gui.State.Modes.CherryPicking.ContextKey
+
+	if oldContextKey != context.GetKey() {
+		// need to reset the cherry picking mode
+		gui.State.Modes.CherryPicking.ContextKey = context.GetKey()
+		gui.State.Modes.CherryPicking.CherryPickedCommits = make([]*commands.Commit, 0)
+
+		return gui.rerenderContextViewIfPresent(oldContextKey)
+	}
+
+	return nil
+}
+
+func (gui *Gui) handleCopyCommit() error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	// get currently selected commit, add the sha to state.
+	context := gui.currentSideContext()
+	if context == nil {
+		return nil
+	}
+
+	if err := gui.resetCherryPickingIfNecessary(context); err != nil {
+		return err
+	}
+
+	item, ok := context.SelectedItem()
+	if !ok {
+		return nil
+	}
+	commit, ok := item.(*commands.Commit)
+	if !ok {
+		return nil
+	}
+
+	// we will un-copy it if it's already copied
+	for index, cherryPickedCommit := range gui.State.Modes.CherryPicking.CherryPickedCommits {
+		if commit.Sha == cherryPickedCommit.Sha {
+			gui.State.Modes.CherryPicking.CherryPickedCommits = append(gui.State.Modes.CherryPicking.CherryPickedCommits[0:index], gui.State.Modes.CherryPicking.CherryPickedCommits[index+1:]...)
+			return context.HandleRender()
+		}
+	}
+
+	gui.addCommitToCherryPickedCommits(context.GetPanelState().GetSelectedLineIdx())
+	return context.HandleRender()
+}
+
+func (gui *Gui) cherryPickedCommitShaMap() map[string]bool {
+	commitShaMap := map[string]bool{}
+	for _, commit := range gui.State.Modes.CherryPicking.CherryPickedCommits {
+		commitShaMap[commit.Sha] = true
+	}
+	return commitShaMap
+}
+
+func (gui *Gui) commitsListForContext() []*commands.Commit {
+	context := gui.currentSideContext()
+	if context == nil {
+		return nil
+	}
+
+	// using a switch statement, but we should use polymorphism
+	switch context.GetKey() {
+	case BRANCH_COMMITS_CONTEXT_KEY:
+		return gui.State.Commits
+	case REFLOG_COMMITS_CONTEXT_KEY:
+		return gui.State.FilteredReflogCommits
+	case SUB_COMMITS_CONTEXT_KEY:
+		return gui.State.SubCommits
+	default:
+		gui.Log.Errorf("no commit list for context %s", context.GetKey())
+		return nil
+	}
+}
+
+func (gui *Gui) addCommitToCherryPickedCommits(index int) {
+	commitShaMap := gui.cherryPickedCommitShaMap()
+	commitsList := gui.commitsListForContext()
+	commitShaMap[commitsList[index].Sha] = true
+
+	newCommits := []*commands.Commit{}
+	for _, commit := range commitsList {
+		if commitShaMap[commit.Sha] {
+			// duplicating just the things we need to put in the rebase TODO list
+			newCommits = append(newCommits, &commands.Commit{Name: commit.Name, Sha: commit.Sha})
+		}
+	}
+
+	gui.State.Modes.CherryPicking.CherryPickedCommits = newCommits
+}
+
+func (gui *Gui) handleCopyCommitRange() error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	// get currently selected commit, add the sha to state.
+	context := gui.currentSideContext()
+	if context == nil {
+		return nil
+	}
+
+	if err := gui.resetCherryPickingIfNecessary(context); err != nil {
+		return err
+	}
+
+	commitShaMap := gui.cherryPickedCommitShaMap()
+	commitsList := gui.commitsListForContext()
+	selectedLineIdx := context.GetPanelState().GetSelectedLineIdx()
+
+	if selectedLineIdx > len(commitsList)-1 {
+		return nil
+	}
+
+	// find the last commit that is copied that's above our position
+	// if there are none, startIndex = 0
+	startIndex := 0
+	for index, commit := range commitsList[0:selectedLineIdx] {
+		if commitShaMap[commit.Sha] {
+			startIndex = index
+		}
+	}
+
+	for index := startIndex; index <= selectedLineIdx; index++ {
+		gui.addCommitToCherryPickedCommits(index)
+	}
+
+	return context.HandleRender()
+}
+
+// HandlePasteCommits begins a cherry-pick rebase with the commits the user has copied
+func (gui *Gui) HandlePasteCommits() error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	return gui.ask(askOpts{
+		title:  gui.Tr.SLocalize("CherryPick"),
+		prompt: gui.Tr.SLocalize("SureCherryPick"),
+		handleConfirm: func() error {
+			return gui.WithWaitingStatus(gui.Tr.SLocalize("CherryPickingStatus"), func() error {
+				err := gui.GitCommand.CherryPickCommits(gui.State.Modes.CherryPicking.CherryPickedCommits)
+				return gui.handleGenericMergeCommandResult(err)
+			})
+		},
+	})
+}
+
+func (gui *Gui) exitCherryPickingMode() error {
+	contextKey := gui.State.Modes.CherryPicking.ContextKey
+
+	gui.State.Modes.CherryPicking.ContextKey = ""
+	gui.State.Modes.CherryPicking.CherryPickedCommits = nil
+
+	if contextKey == "" {
+		gui.Log.Warn("context key blank when trying to exit cherry picking mode")
+		return nil
+	}
+
+	return gui.rerenderContextViewIfPresent(contextKey)
+}
+
+func (gui *Gui) rerenderContextViewIfPresent(contextKey string) error {
+	if contextKey == "" {
+		return nil
+	}
+
+	context := gui.contextForContextKey(contextKey)
+
+	viewName := context.GetViewName()
+
+	view, err := gui.g.View(viewName)
+	if err != nil {
+		gui.Log.Warn(err)
+		return nil
+	}
+
+	if view.Context == contextKey {
+		if err := context.HandleRender(); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}

pkg/gui/commit_files_panel.go

@@ -0,0 +1,219 @@
+package gui
+
+import (
+	"github.com/jesseduffield/gocui"
+	"github.com/jesseduffield/lazygit/pkg/commands"
+)
+
+func (gui *Gui) getSelectedCommitFile() *commands.CommitFile {
+	selectedLine := gui.State.Panels.CommitFiles.SelectedLineIdx
+	if selectedLine == -1 || selectedLine > len(gui.State.CommitFiles)-1 {
+		return nil
+	}
+
+	return gui.State.CommitFiles[selectedLine]
+}
+
+func (gui *Gui) handleCommitFileSelect() error {
+	gui.handleEscapeLineByLinePanel()
+
+	commitFile := gui.getSelectedCommitFile()
+	if commitFile == nil {
+		return nil
+	}
+
+	to := commitFile.Parent
+	from, reverse := gui.getFromAndReverseArgsForDiff(to)
+
+	cmd := gui.OSCommand.ExecutableFromString(
+		gui.GitCommand.ShowFileDiffCmdStr(from, to, reverse, commitFile.Name, false),
+	)
+	task := gui.createRunPtyTask(cmd)
+
+	return gui.refreshMainViews(refreshMainOpts{
+		main: &viewUpdateOpts{
+			title: "Patch",
+			task:  task,
+		},
+		secondary: gui.secondaryPatchPanelUpdateOpts(),
+	})
+}
+
+func (gui *Gui) handleCheckoutCommitFile(g *gocui.Gui, v *gocui.View) error {
+	file := gui.getSelectedCommitFile()
+	if file == nil {
+		return nil
+	}
+
+	if err := gui.GitCommand.CheckoutFile(file.Parent, file.Name); err != nil {
+		return gui.surfaceError(err)
+	}
+
+	return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+}
+
+func (gui *Gui) handleDiscardOldFileChange(g *gocui.Gui, v *gocui.View) error {
+	if ok, err := gui.validateNormalWorkingTreeState(); !ok {
+		return err
+	}
+
+	fileName := gui.State.CommitFiles[gui.State.Panels.CommitFiles.SelectedLineIdx].Name
+
+	return gui.ask(askOpts{
+		title:  gui.Tr.SLocalize("DiscardFileChangesTitle"),
+		prompt: gui.Tr.SLocalize("DiscardFileChangesPrompt"),
+		handleConfirm: func() error {
+			return gui.WithWaitingStatus(gui.Tr.SLocalize("RebasingStatus"), func() error {
+				if err := gui.GitCommand.DiscardOldFileChanges(gui.State.Commits, gui.State.Panels.Commits.SelectedLineIdx, fileName); err != nil {
+					if err := gui.handleGenericMergeCommandResult(err); err != nil {
+						return err
+					}
+				}
+
+				return gui.refreshSidePanels(refreshOptions{mode: BLOCK_UI})
+			})
+		},
+	})
+}
+
+func (gui *Gui) refreshCommitFilesView() error {
+	if err := gui.refreshPatchBuildingPanel(-1); err != nil {
+		return err
+	}
+
+	to := gui.State.Panels.CommitFiles.refName
+	from, reverse := gui.getFromAndReverseArgsForDiff(to)
+
+	files, err := gui.GitCommand.GetFilesInDiff(from, to, reverse, gui.GitCommand.PatchManager)
+	if err != nil {
+		return gui.surfaceError(err)
+	}
+	gui.State.CommitFiles = files
+
+	return gui.postRefreshUpdate(gui.Contexts.CommitFiles.Context)
+}
+
+func (gui *Gui) handleOpenOldCommitFile(g *gocui.Gui, v *gocui.View) error {
+	file := gui.getSelectedCommitFile()
+	if file == nil {
+		return nil
+	}
+
+	return gui.openFile(file.Name)
+}
+
+func (gui *Gui) handleEditCommitFile(g *gocui.Gui, v *gocui.View) error {
+	file := gui.getSelectedCommitFile()
+	if file == nil {
+		return nil
+	}
+
+	return gui.editFile(file.Name)
+}
+
+func (gui *Gui) handleToggleFileForPatch(g *gocui.Gui, v *gocui.View) error {
+	commitFile := gui.getSelectedCommitFile()
+	if commitFile == nil {
+		return nil
+	}
+
+	toggleTheFile := func() error {
+		if !gui.GitCommand.PatchManager.Active() {
+			if err := gui.startPatchManager(); err != nil {
+				return err
+			}
+		}
+
+		if err := gui.GitCommand.PatchManager.ToggleFileWhole(commitFile.Name); err != nil {
+			return err
+		}
+
+		if gui.GitCommand.PatchManager.IsEmpty() {
+			gui.GitCommand.PatchManager.Reset()
+		}
+
+		return gui.refreshCommitFilesView()
+	}
+
+	if gui.GitCommand.PatchManager.Active() && gui.GitCommand.PatchManager.To != commitFile.Parent {
+		return gui.ask(askOpts{
+			title:  gui.Tr.SLocalize("DiscardPatch"),
+			prompt: gui.Tr.SLocalize("DiscardPatchConfirm"),
+			handleConfirm: func() error {
+				gui.GitCommand.PatchManager.Reset()
+				return toggleTheFile()
+			},
+		})
+	}
+
+	return toggleTheFile()
+}
+
+func (gui *Gui) startPatchManager() error {
+	canRebase := gui.State.Panels.CommitFiles.canRebase
+
+	to := gui.State.Panels.CommitFiles.refName
+	from, reverse := gui.getFromAndReverseArgsForDiff(to)
+
+	gui.GitCommand.PatchManager.Start(from, to, reverse, canRebase)
+	return nil
+}
+
+func (gui *Gui) handleEnterCommitFile(g *gocui.Gui, v *gocui.View) error {
+	return gui.enterCommitFile(-1)
+}
+
+func (gui *Gui) enterCommitFile(selectedLineIdx int) error {
+	commitFile := gui.getSelectedCommitFile()
+	if commitFile == nil {
+		return nil
+	}
+
+	enterTheFile := func(selectedLineIdx int) error {
+		if !gui.GitCommand.PatchManager.Active() {
+			if err := gui.startPatchManager(); err != nil {
+				return err
+			}
+		}
+
+		if err := gui.switchContext(gui.Contexts.PatchBuilding.Context); err != nil {
+			return err
+		}
+		return gui.refreshPatchBuildingPanel(selectedLineIdx)
+	}
+
+	if gui.GitCommand.PatchManager.Active() && gui.GitCommand.PatchManager.To != commitFile.Parent {
+		return gui.ask(askOpts{
+			title:               gui.Tr.SLocalize("DiscardPatch"),
+			prompt:              gui.Tr.SLocalize("DiscardPatchConfirm"),
+			handlersManageFocus: true,
+			handleConfirm: func() error {
+				gui.GitCommand.PatchManager.Reset()
+				return enterTheFile(selectedLineIdx)
+			},
+			handleClose: func() error {
+				return gui.switchContext(gui.Contexts.CommitFiles.Context)
+			},
+		})
+	}
+
+	return enterTheFile(selectedLineIdx)
+}
+
+func (gui *Gui) switchToCommitFilesContext(refName string, canRebase bool, context Context, windowName string) error {
+	// sometimes the commitFiles view is already shown in another window, so we need to ensure that window
+	// no longer considers the commitFiles view as its main view.
+	gui.resetWindowForView("commitFiles")
+
+	gui.State.Panels.CommitFiles.SelectedLineIdx = 0
+	gui.State.Panels.CommitFiles.refName = refName
+	gui.State.Panels.CommitFiles.canRebase = canRebase
+	gui.Contexts.CommitFiles.Context.SetParentContext(context)
+	gui.Contexts.CommitFiles.Context.SetWindowName(windowName)
+
+	if err := gui.refreshCommitFilesView(); err != nil {
+		return err
+	}
+
+	return gui.switchContext(gui.Contexts.CommitFiles.Context)
+}

pkg/gui/commit_message_panel.go

@@ -0,0 +1,114 @@
+package gui
+
+import (
+	"os/exec"
+	"strconv"
+	"strings"
+
+	"github.com/jesseduffield/gocui"
+)
+
+// runSyncOrAsyncCommand takes the output of a command that may have returned
+// either no error, an error, or a subprocess to execute, and if a subprocess
+// needs to be set on the gui object, it does so, and then returns the error
+// the bool returned tells us whether the calling code should continue
+func (gui *Gui) runSyncOrAsyncCommand(sub *exec.Cmd, err error) (bool, error) {
+	if err != nil {
+		if err != gui.Errors.ErrSubProcess {
+			return false, gui.surfaceError(err)
+		}
+	}
+	if sub != nil {
+		gui.SubProcess = sub
+		return false, gui.Errors.ErrSubProcess
+	}
+	return true, nil
+}
+
+func (gui *Gui) handleCommitConfirm(g *gocui.Gui, v *gocui.View) error {
+	message := gui.trimmedContent(v)
+	if message == "" {
+		return gui.createErrorPanel(gui.Tr.SLocalize("CommitWithoutMessageErr"))
+	}
+	flags := ""
+	skipHookPrefix := gui.Config.GetUserConfig().GetString("git.skipHookPrefix")
+	if skipHookPrefix != "" && strings.HasPrefix(message, skipHookPrefix) {
+		flags = "--no-verify"
+	}
+	ok, err := gui.runSyncOrAsyncCommand(gui.GitCommand.Commit(message, flags))
+	if err != nil {
+		return err
+	}
+	if !ok {
+		return nil
+	}
+
+	gui.clearEditorView(v)
+	_ = gui.returnFromContext()
+	return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+}
+
+func (gui *Gui) handleCommitClose(g *gocui.Gui, v *gocui.View) error {
+	return gui.returnFromContext()
+}
+
+func (gui *Gui) handleCommitMessageFocused() error {
+	message := gui.Tr.TemplateLocalize(
+		"CommitMessageConfirm",
+		Teml{
+			"keyBindClose":   "esc",
+			"keyBindConfirm": "enter",
+			"keyBindNewLine": "tab",
+		},
+	)
+	gui.renderString("options", message)
+	return nil
+}
+
+func (gui *Gui) getBufferLength(view *gocui.View) string {
+	return " " + strconv.Itoa(strings.Count(view.Buffer(), "")-1) + " "
+}
+
+// RenderCommitLength is a function.
+func (gui *Gui) RenderCommitLength() {
+	if !gui.Config.GetUserConfig().GetBool("gui.commitLength.show") {
+		return
+	}
+	v := gui.getCommitMessageView()
+	v.Subtitle = gui.getBufferLength(v)
+}
+
+// we've just copy+pasted the editor from gocui to here so that we can also re-
+// render the commit message length on each keypress
+func (gui *Gui) commitMessageEditor(v *gocui.View, key gocui.Key, ch rune, mod gocui.Modifier) {
+	switch {
+	case key == gocui.KeyBackspace || key == gocui.KeyBackspace2:
+		v.EditDelete(true)
+	case key == gocui.KeyDelete:
+		v.EditDelete(false)
+	case key == gocui.KeyArrowDown:
+		v.MoveCursor(0, 1, false)
+	case key == gocui.KeyArrowUp:
+		v.MoveCursor(0, -1, false)
+	case key == gocui.KeyArrowLeft:
+		v.MoveCursor(-1, 0, false)
+	case key == gocui.KeyArrowRight:
+		v.MoveCursor(1, 0, false)
+	case key == gocui.KeyTab:
+		v.EditNewLine()
+	case key == gocui.KeySpace:
+		v.EditWrite(' ')
+	case key == gocui.KeyInsert:
+		v.Overwrite = !v.Overwrite
+	case key == gocui.KeyCtrlU:
+		v.EditDeleteToStartOfLine()
+	case key == gocui.KeyCtrlA:
+		v.EditGotoToStartOfLine()
+	case key == gocui.KeyCtrlE:
+		v.EditGotoToEndOfLine()
+	default:
+		v.EditWrite(ch)
+	}
+
+	gui.RenderCommitLength()
+}

pkg/gui/commits_panel.go

@@ -0,0 +1,576 @@
+package gui
+
+import (
+	"sync"
+
+	"github.com/jesseduffield/gocui"
+	"github.com/jesseduffield/lazygit/pkg/commands"
+)
+
+// list panel functions
+
+func (gui *Gui) getSelectedLocalCommit() *commands.Commit {
+	selectedLine := gui.State.Panels.Commits.SelectedLineIdx
+	if selectedLine == -1 {
+		return nil
+	}
+
+	return gui.State.Commits[selectedLine]
+}
+
+func (gui *Gui) handleCommitSelect() error {
+	state := gui.State.Panels.Commits
+	if state.SelectedLineIdx > 290 && state.LimitCommits {
+		state.LimitCommits = false
+		go func() {
+			if err := gui.refreshCommitsWithLimit(); err != nil {
+				_ = gui.surfaceError(err)
+			}
+		}()
+	}
+
+	gui.handleEscapeLineByLinePanel()
+
+	var task updateTask
+	commit := gui.getSelectedLocalCommit()
+	if commit == nil {
+		task = gui.createRenderStringTask(gui.Tr.SLocalize("NoCommitsThisBranch"))
+	} else {
+		cmd := gui.OSCommand.ExecutableFromString(
+			gui.GitCommand.ShowCmdStr(commit.Sha, gui.State.Modes.Filtering.Path),
+		)
+		task = gui.createRunPtyTask(cmd)
+	}
+
+	return gui.refreshMainViews(refreshMainOpts{
+		main: &viewUpdateOpts{
+			title: "Patch",
+			task:  task,
+		},
+		secondary: gui.secondaryPatchPanelUpdateOpts(),
+	})
+}
+
+// during startup, the bottleneck is fetching the reflog entries. We need these
+// on startup to sort the branches by recency. So we have two phases: INITIAL, and COMPLETE.
+// In the initial phase we don't get any reflog commits, but we asynchronously get them
+// and refresh the branches after that
+func (gui *Gui) refreshReflogCommitsConsideringStartup() {
+	switch gui.State.StartupStage {
+	case INITIAL:
+		go func() {
+			_ = gui.refreshReflogCommits()
+			gui.refreshBranches()
+			gui.State.StartupStage = COMPLETE
+		}()
+
+	case COMPLETE:
+		_ = gui.refreshReflogCommits()
+	}
+}
+
+// whenever we change commits, we should update branches because the upstream/downstream
+// counts can change. Whenever we change branches we should probably also change commits
+// e.g. in the case of switching branches.
+func (gui *Gui) refreshCommits() error {
+	wg := sync.WaitGroup{}
+	wg.Add(2)
+
+	go func() {
+		gui.refreshReflogCommitsConsideringStartup()
+
+		gui.refreshBranches()
+		wg.Done()
+	}()
+
+	go func() {
+		_ = gui.refreshCommitsWithLimit()
+		if gui.g.CurrentView() == gui.getCommitFilesView() || (gui.currentContext().GetKey() == gui.Contexts.PatchBuilding.Context.GetKey()) {
+			_ = gui.refreshCommitFilesView()
+		}
+		wg.Done()
+	}()
+
+	wg.Wait()
+
+	return nil
+}
+
+func (gui *Gui) refreshCommitsWithLimit() error {
+	gui.State.BranchCommitsMutex.Lock()
+	defer gui.State.BranchCommitsMutex.Unlock()
+
+	builder := commands.NewCommitListBuilder(gui.Log, gui.GitCommand, gui.OSCommand, gui.Tr)
+
+	commits, err := builder.GetCommits(
+		commands.GetCommitsOptions{
+			Limit:                gui.State.Panels.Commits.LimitCommits,
+			FilterPath:           gui.State.Modes.Filtering.Path,
+			IncludeRebaseCommits: true,
+			RefName:              "HEAD",
+		},
+	)
+	if err != nil {
+		return err
+	}
+	gui.State.Commits = commits
+
+	return gui.postRefreshUpdate(gui.Contexts.BranchCommits.Context)
+}
+
+func (gui *Gui) refreshRebaseCommits() error {
+	gui.State.BranchCommitsMutex.Lock()
+	defer gui.State.BranchCommitsMutex.Unlock()
+
+	builder := commands.NewCommitListBuilder(gui.Log, gui.GitCommand, gui.OSCommand, gui.Tr)
+
+	updatedCommits, err := builder.MergeRebasingCommits(gui.State.Commits)
+	if err != nil {
+		return err
+	}
+	gui.State.Commits = updatedCommits
+
+	return gui.postRefreshUpdate(gui.Contexts.BranchCommits.Context)
+}
+
+// specific functions
+
+func (gui *Gui) handleCommitSquashDown(g *gocui.Gui, v *gocui.View) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	if len(gui.State.Commits) <= 1 {
+		return gui.createErrorPanel(gui.Tr.SLocalize("YouNoCommitsToSquash"))
+	}
+
+	applied, err := gui.handleMidRebaseCommand("squash")
+	if err != nil {
+		return err
+	}
+	if applied {
+		return nil
+	}
+
+	return gui.ask(askOpts{
+		title:  gui.Tr.SLocalize("Squash"),
+		prompt: gui.Tr.SLocalize("SureSquashThisCommit"),
+		handleConfirm: func() error {
+			return gui.WithWaitingStatus(gui.Tr.SLocalize("SquashingStatus"), func() error {
+				err := gui.GitCommand.InteractiveRebase(gui.State.Commits, gui.State.Panels.Commits.SelectedLineIdx, "squash")
+				return gui.handleGenericMergeCommandResult(err)
+			})
+		},
+	})
+}
+
+func (gui *Gui) handleCommitFixup(g *gocui.Gui, v *gocui.View) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	if len(gui.State.Commits) <= 1 {
+		return gui.createErrorPanel(gui.Tr.SLocalize("YouNoCommitsToSquash"))
+	}
+
+	applied, err := gui.handleMidRebaseCommand("fixup")
+	if err != nil {
+		return err
+	}
+	if applied {
+		return nil
+	}
+
+	return gui.ask(askOpts{
+		title:  gui.Tr.SLocalize("Fixup"),
+		prompt: gui.Tr.SLocalize("SureFixupThisCommit"),
+		handleConfirm: func() error {
+			return gui.WithWaitingStatus(gui.Tr.SLocalize("FixingStatus"), func() error {
+				err := gui.GitCommand.InteractiveRebase(gui.State.Commits, gui.State.Panels.Commits.SelectedLineIdx, "fixup")
+				return gui.handleGenericMergeCommandResult(err)
+			})
+		},
+	})
+}
+
+func (gui *Gui) handleRenameCommit(g *gocui.Gui, v *gocui.View) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	applied, err := gui.handleMidRebaseCommand("reword")
+	if err != nil {
+		return err
+	}
+	if applied {
+		return nil
+	}
+
+	if gui.State.Panels.Commits.SelectedLineIdx != 0 {
+		return gui.createErrorPanel(gui.Tr.SLocalize("OnlyRenameTopCommit"))
+	}
+
+	commit := gui.getSelectedLocalCommit()
+	if commit == nil {
+		return nil
+	}
+
+	message, err := gui.GitCommand.GetCommitMessage(commit.Sha)
+	if err != nil {
+		return gui.surfaceError(err)
+	}
+
+	return gui.prompt(gui.Tr.SLocalize("renameCommit"), message, func(response string) error {
+		if err := gui.GitCommand.RenameCommit(response); err != nil {
+			return gui.surfaceError(err)
+		}
+
+		return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+	})
+}
+
+func (gui *Gui) handleRenameCommitEditor(g *gocui.Gui, v *gocui.View) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	applied, err := gui.handleMidRebaseCommand("reword")
+	if err != nil {
+		return err
+	}
+	if applied {
+		return nil
+	}
+
+	subProcess, err := gui.GitCommand.RewordCommit(gui.State.Commits, gui.State.Panels.Commits.SelectedLineIdx)
+	if err != nil {
+		return gui.surfaceError(err)
+	}
+	if subProcess != nil {
+		gui.SubProcess = subProcess
+		return gui.Errors.ErrSubProcess
+	}
+
+	return nil
+}
+
+// handleMidRebaseCommand sees if the selected commit is in fact a rebasing
+// commit meaning you are trying to edit the todo file rather than actually
+// begin a rebase. It then updates the todo file with that action
+func (gui *Gui) handleMidRebaseCommand(action string) (bool, error) {
+	selectedCommit := gui.State.Commits[gui.State.Panels.Commits.SelectedLineIdx]
+	if selectedCommit.Status != "rebasing" {
+		return false, nil
+	}
+
+	// for now we do not support setting 'reword' because it requires an editor
+	// and that means we either unconditionally wait around for the subprocess to ask for
+	// our input or we set a lazygit client as the EDITOR env variable and have it
+	// request us to edit the commit message when prompted.
+	if action == "reword" {
+		return true, gui.createErrorPanel(gui.Tr.SLocalize("rewordNotSupported"))
+	}
+
+	if err := gui.GitCommand.EditRebaseTodo(gui.State.Panels.Commits.SelectedLineIdx, action); err != nil {
+		return false, gui.surfaceError(err)
+	}
+
+	return true, gui.refreshRebaseCommits()
+}
+
+func (gui *Gui) handleCommitDelete(g *gocui.Gui, v *gocui.View) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	applied, err := gui.handleMidRebaseCommand("drop")
+	if err != nil {
+		return err
+	}
+	if applied {
+		return nil
+	}
+
+	return gui.ask(askOpts{
+		title:  gui.Tr.SLocalize("DeleteCommitTitle"),
+		prompt: gui.Tr.SLocalize("DeleteCommitPrompt"),
+		handleConfirm: func() error {
+			return gui.WithWaitingStatus(gui.Tr.SLocalize("DeletingStatus"), func() error {
+				err := gui.GitCommand.InteractiveRebase(gui.State.Commits, gui.State.Panels.Commits.SelectedLineIdx, "drop")
+				return gui.handleGenericMergeCommandResult(err)
+			})
+		},
+	})
+}
+
+func (gui *Gui) handleCommitMoveDown(g *gocui.Gui, v *gocui.View) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	index := gui.State.Panels.Commits.SelectedLineIdx
+	selectedCommit := gui.State.Commits[index]
+	if selectedCommit.Status == "rebasing" {
+		if gui.State.Commits[index+1].Status != "rebasing" {
+			return nil
+		}
+		if err := gui.GitCommand.MoveTodoDown(index); err != nil {
+			return gui.surfaceError(err)
+		}
+		gui.State.Panels.Commits.SelectedLineIdx++
+		return gui.refreshRebaseCommits()
+	}
+
+	return gui.WithWaitingStatus(gui.Tr.SLocalize("MovingStatus"), func() error {
+		err := gui.GitCommand.MoveCommitDown(gui.State.Commits, index)
+		if err == nil {
+			gui.State.Panels.Commits.SelectedLineIdx++
+		}
+		return gui.handleGenericMergeCommandResult(err)
+	})
+}
+
+func (gui *Gui) handleCommitMoveUp(g *gocui.Gui, v *gocui.View) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	index := gui.State.Panels.Commits.SelectedLineIdx
+	if index == 0 {
+		return nil
+	}
+	selectedCommit := gui.State.Commits[index]
+	if selectedCommit.Status == "rebasing" {
+		if err := gui.GitCommand.MoveTodoDown(index - 1); err != nil {
+			return gui.surfaceError(err)
+		}
+		gui.State.Panels.Commits.SelectedLineIdx--
+		return gui.refreshRebaseCommits()
+	}
+
+	return gui.WithWaitingStatus(gui.Tr.SLocalize("MovingStatus"), func() error {
+		err := gui.GitCommand.MoveCommitDown(gui.State.Commits, index-1)
+		if err == nil {
+			gui.State.Panels.Commits.SelectedLineIdx--
+		}
+		return gui.handleGenericMergeCommandResult(err)
+	})
+}
+
+func (gui *Gui) handleCommitEdit(g *gocui.Gui, v *gocui.View) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	applied, err := gui.handleMidRebaseCommand("edit")
+	if err != nil {
+		return err
+	}
+	if applied {
+		return nil
+	}
+
+	return gui.WithWaitingStatus(gui.Tr.SLocalize("RebasingStatus"), func() error {
+		err = gui.GitCommand.InteractiveRebase(gui.State.Commits, gui.State.Panels.Commits.SelectedLineIdx, "edit")
+		return gui.handleGenericMergeCommandResult(err)
+	})
+}
+
+func (gui *Gui) handleCommitAmendTo(g *gocui.Gui, v *gocui.View) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	return gui.ask(askOpts{
+		title:  gui.Tr.SLocalize("AmendCommitTitle"),
+		prompt: gui.Tr.SLocalize("AmendCommitPrompt"),
+		handleConfirm: func() error {
+			return gui.WithWaitingStatus(gui.Tr.SLocalize("AmendingStatus"), func() error {
+				err := gui.GitCommand.AmendTo(gui.State.Commits[gui.State.Panels.Commits.SelectedLineIdx].Sha)
+				return gui.handleGenericMergeCommandResult(err)
+			})
+		},
+	})
+}
+
+func (gui *Gui) handleCommitPick(g *gocui.Gui, v *gocui.View) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	applied, err := gui.handleMidRebaseCommand("pick")
+	if err != nil {
+		return err
+	}
+	if applied {
+		return nil
+	}
+
+	// at this point we aren't actually rebasing so we will interpret this as an
+	// attempt to pull. We might revoke this later after enabling configurable keybindings
+	return gui.handlePullFiles(g, v)
+}
+
+func (gui *Gui) handleCommitRevert(g *gocui.Gui, v *gocui.View) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	if err := gui.GitCommand.Revert(gui.State.Commits[gui.State.Panels.Commits.SelectedLineIdx].Sha); err != nil {
+		return gui.surfaceError(err)
+	}
+	gui.State.Panels.Commits.SelectedLineIdx++
+	return gui.refreshSidePanels(refreshOptions{mode: BLOCK_UI, scope: []int{COMMITS, BRANCHES}})
+}
+
+func (gui *Gui) handleViewCommitFiles() error {
+	commit := gui.getSelectedLocalCommit()
+	if commit == nil {
+		return nil
+	}
+
+	return gui.switchToCommitFilesContext(commit.Sha, true, gui.Contexts.BranchCommits.Context, "commits")
+}
+
+func (gui *Gui) hasCommit(commits []*commands.Commit, target string) (int, bool) {
+	for idx, commit := range commits {
+		if commit.Sha == target {
+			return idx, true
+		}
+	}
+	return -1, false
+}
+
+func (gui *Gui) unchooseCommit(commits []*commands.Commit, i int) []*commands.Commit {
+	return append(commits[:i], commits[i+1:]...)
+}
+
+func (gui *Gui) handleCreateFixupCommit(g *gocui.Gui, v *gocui.View) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	commit := gui.getSelectedLocalCommit()
+	if commit == nil {
+		return nil
+	}
+
+	return gui.ask(askOpts{
+		title: gui.Tr.SLocalize("CreateFixupCommit"),
+		prompt: gui.Tr.TemplateLocalize(
+			"SureCreateFixupCommit",
+			Teml{
+				"commit": commit.Sha,
+			},
+		),
+		handleConfirm: func() error {
+			if err := gui.GitCommand.CreateFixupCommit(commit.Sha); err != nil {
+				return gui.surfaceError(err)
+			}
+
+			return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+		},
+	})
+}
+
+func (gui *Gui) handleSquashAllAboveFixupCommits(g *gocui.Gui, v *gocui.View) error {
+	if ok, err := gui.validateNotInFilterMode(); err != nil || !ok {
+		return err
+	}
+
+	commit := gui.getSelectedLocalCommit()
+	if commit == nil {
+		return nil
+	}
+
+	return gui.ask(askOpts{
+		title: gui.Tr.SLocalize("SquashAboveCommits"),
+		prompt: gui.Tr.TemplateLocalize(
+			"SureSquashAboveCommits",
+			Teml{
+				"commit": commit.Sha,
+			},
+		),
+		handleConfirm: func() error {
+			return gui.WithWaitingStatus(gui.Tr.SLocalize("SquashingStatus"), func() error {
+				err := gui.GitCommand.SquashAllAboveFixupCommits(commit.Sha)
+				return gui.handleGenericMergeCommandResult(err)
+			})
+		},
+	})
+}
+
+func (gui *Gui) handleTagCommit(g *gocui.Gui, v *gocui.View) error {
+	// TODO: bring up menu asking if you want to make a lightweight or annotated tag
+	// if annotated, switch to a subprocess to create the message
+
+	commit := gui.getSelectedLocalCommit()
+	if commit == nil {
+		return nil
+	}
+
+	return gui.handleCreateLightweightTag(commit.Sha)
+}
+
+func (gui *Gui) handleCreateLightweightTag(commitSha string) error {
+	return gui.prompt(gui.Tr.SLocalize("TagNameTitle"), "", func(response string) error {
+		if err := gui.GitCommand.CreateLightweightTag(response, commitSha); err != nil {
+			return gui.surfaceError(err)
+		}
+		return gui.refreshSidePanels(refreshOptions{mode: ASYNC, scope: []int{COMMITS, TAGS}})
+	})
+}
+
+func (gui *Gui) handleCheckoutCommit(g *gocui.Gui, v *gocui.View) error {
+	commit := gui.getSelectedLocalCommit()
+	if commit == nil {
+		return nil
+	}
+
+	return gui.ask(askOpts{
+		title:  gui.Tr.SLocalize("checkoutCommit"),
+		prompt: gui.Tr.SLocalize("SureCheckoutThisCommit"),
+		handleConfirm: func() error {
+			return gui.handleCheckoutRef(commit.Sha, handleCheckoutRefOptions{})
+		},
+	})
+}
+
+func (gui *Gui) handleCreateCommitResetMenu(g *gocui.Gui, v *gocui.View) error {
+	commit := gui.getSelectedLocalCommit()
+	if commit == nil {
+		return gui.createErrorPanel(gui.Tr.SLocalize("NoCommitsThisBranch"))
+	}
+
+	return gui.createResetMenu(commit.Sha)
+}
+
+func (gui *Gui) handleOpenSearchForCommitsPanel(g *gocui.Gui, v *gocui.View) error {
+	// we usually lazyload these commits but now that we're searching we need to load them now
+	if gui.State.Panels.Commits.LimitCommits {
+		gui.State.Panels.Commits.LimitCommits = false
+		if err := gui.refreshSidePanels(refreshOptions{mode: ASYNC, scope: []int{COMMITS}}); err != nil {
+			return err
+		}
+	}
+
+	return gui.handleOpenSearch(gui.g, v)
+}
+
+func (gui *Gui) handleGotoBottomForCommitsPanel(g *gocui.Gui, v *gocui.View) error {
+	// we usually lazyload these commits but now that we're searching we need to load them now
+	if gui.State.Panels.Commits.LimitCommits {
+		gui.State.Panels.Commits.LimitCommits = false
+		if err := gui.refreshSidePanels(refreshOptions{mode: SYNC, scope: []int{COMMITS}}); err != nil {
+			return err
+		}
+	}
+
+	for _, context := range gui.getListContexts() {
+		if context.ViewName == "commits" {
+			return context.handleGotoBottom(g, v)
+		}
+	}
+
+	return nil
+}

pkg/gui/confirmation_panel.go

@@ -0,0 +1,254 @@
+// lots of this has been directly ported from one of the example files, will brush up later
+
+// Copyright 2014 The gocui Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package gui
+
+import (
+	"strings"
+	"time"
+
+	"github.com/fatih/color"
+	"github.com/jesseduffield/gocui"
+	"github.com/jesseduffield/lazygit/pkg/theme"
+)
+
+type createPopupPanelOpts struct {
+	hasLoader           bool
+	editable            bool
+	title               string
+	prompt              string
+	handleConfirm       func() error
+	handleConfirmPrompt func(string) error
+	handleClose         func() error
+
+	// when handlersManageFocus is true, do not return from the confirmation context automatically. It's expected that the handlers will manage focus, whether that means switching to another context, or manually returning the context.
+	handlersManageFocus bool
+}
+
+type askOpts struct {
+	title               string
+	prompt              string
+	handleConfirm       func() error
+	handleClose         func() error
+	handlersManageFocus bool
+}
+
+func (gui *Gui) createLoaderPanel(currentView *gocui.View, prompt string) error {
+	return gui.createPopupPanel(createPopupPanelOpts{
+		prompt:    prompt,
+		hasLoader: true,
+	})
+}
+
+func (gui *Gui) ask(opts askOpts) error {
+	return gui.createPopupPanel(createPopupPanelOpts{
+		title:               opts.title,
+		prompt:              opts.prompt,
+		handleConfirm:       opts.handleConfirm,
+		handleClose:         opts.handleClose,
+		handlersManageFocus: opts.handlersManageFocus,
+	})
+}
+
+func (gui *Gui) prompt(title string, initialContent string, handleConfirm func(string) error) error {
+	return gui.createPopupPanel(createPopupPanelOpts{
+		title:               title,
+		prompt:              initialContent,
+		editable:            true,
+		handleConfirmPrompt: handleConfirm,
+	})
+}
+
+func (gui *Gui) wrappedConfirmationFunction(handlersManageFocus bool, function func() error) func(*gocui.Gui, *gocui.View) error {
+	return func(g *gocui.Gui, v *gocui.View) error {
+		if function != nil {
+			if err := function(); err != nil {
+				return err
+			}
+		}
+
+		if err := gui.closeConfirmationPrompt(handlersManageFocus); err != nil {
+			return err
+		}
+
+		return nil
+	}
+}
+
+func (gui *Gui) wrappedPromptConfirmationFunction(handlersManageFocus bool, function func(string) error) func(*gocui.Gui, *gocui.View) error {
+	return func(g *gocui.Gui, v *gocui.View) error {
+		if function != nil {
+			if err := function(v.Buffer()); err != nil {
+				return gui.surfaceError(err)
+			}
+		}
+
+		if err := gui.closeConfirmationPrompt(handlersManageFocus); err != nil {
+			return err
+		}
+
+		return nil
+	}
+}
+
+func (gui *Gui) deleteConfirmationView() {
+	gui.g.DeleteKeybinding("confirmation", gui.getKey("universal.confirm"), gocui.ModNone)
+	gui.g.DeleteKeybinding("confirmation", gui.getKey("universal.confirm-alt1"), gocui.ModNone)
+	gui.g.DeleteKeybinding("confirmation", gui.getKey("universal.return"), gocui.ModNone)
+
+	_ = gui.g.DeleteView("confirmation")
+}
+
+func (gui *Gui) closeConfirmationPrompt(handlersManageFocus bool) error {
+	view := gui.getConfirmationView()
+	if view == nil {
+		return nil // if it's already been closed we can just return
+	}
+
+	if !handlersManageFocus {
+		if err := gui.returnFromContext(); err != nil {
+			return err
+		}
+	}
+
+	gui.deleteConfirmationView()
+	return nil
+}
+
+func (gui *Gui) getMessageHeight(wrap bool, message string, width int) int {
+	lines := strings.Split(message, "\n")
+	lineCount := 0
+	// if we need to wrap, calculate height to fit content within view's width
+	if wrap {
+		for _, line := range lines {
+			lineCount += len(line)/width + 1
+		}
+	} else {
+		lineCount = len(lines)
+	}
+	return lineCount
+}
+
+func (gui *Gui) getConfirmationPanelDimensions(wrap bool, prompt string) (int, int, int, int) {
+	width, height := gui.g.Size()
+	// we want a minimum width up to a point, then we do it based on ratio.
+	panelWidth := 4 * width / 7
+	minWidth := 80
+	if panelWidth < minWidth {
+		if width-2 < minWidth {
+			panelWidth = width - 2
+		} else {
+			panelWidth = minWidth
+		}
+	}
+	panelHeight := gui.getMessageHeight(wrap, prompt, panelWidth)
+	if panelHeight > height*3/4 {
+		panelHeight = height * 3 / 4
+	}
+	return width/2 - panelWidth/2,
+		height/2 - panelHeight/2 - panelHeight%2 - 1,
+		width/2 + panelWidth/2,
+		height/2 + panelHeight/2
+}
+
+func (gui *Gui) prepareConfirmationPanel(title, prompt string, hasLoader bool) (*gocui.View, error) {
+	x0, y0, x1, y1 := gui.getConfirmationPanelDimensions(true, prompt)
+	confirmationView, err := gui.g.SetView("confirmation", x0, y0, x1, y1, 0)
+	if err != nil {
+		if err.Error() != "unknown view" {
+			return nil, err
+		}
+		confirmationView.HasLoader = hasLoader
+		if hasLoader {
+			gui.g.StartTicking()
+		}
+		confirmationView.Title = title
+		confirmationView.Wrap = true
+		confirmationView.FgColor = theme.GocuiDefaultTextColor
+	}
+	gui.g.Update(func(g *gocui.Gui) error {
+		return gui.switchContext(gui.Contexts.Confirmation.Context)
+	})
+	return confirmationView, nil
+}
+
+func (gui *Gui) createPopupPanel(opts createPopupPanelOpts) error {
+	gui.g.Update(func(g *gocui.Gui) error {
+		// delete the existing confirmation panel if it exists
+		if view, _ := g.View("confirmation"); view != nil {
+			gui.deleteConfirmationView()
+		}
+		confirmationView, err := gui.prepareConfirmationPanel(opts.title, opts.prompt, opts.hasLoader)
+		if err != nil {
+			return err
+		}
+		confirmationView.Editable = opts.editable
+		if opts.editable {
+			go func() {
+				// TODO: remove this wait (right now if you remove it the EditGotoToEndOfLine method doesn't seem to work)
+				time.Sleep(time.Millisecond)
+				gui.g.Update(func(g *gocui.Gui) error {
+					confirmationView.EditGotoToEndOfLine()
+					return nil
+				})
+			}()
+		}
+
+		gui.renderString("confirmation", opts.prompt)
+		return gui.setKeyBindings(opts)
+	})
+	return nil
+}
+
+func (gui *Gui) setKeyBindings(opts createPopupPanelOpts) error {
+	actions := gui.Tr.TemplateLocalize(
+		"CloseConfirm",
+		Teml{
+			"keyBindClose":   "esc",
+			"keyBindConfirm": "enter",
+		},
+	)
+
+	gui.renderString("options", actions)
+	var onConfirm func(*gocui.Gui, *gocui.View) error
+	if opts.handleConfirmPrompt != nil {
+		onConfirm = gui.wrappedPromptConfirmationFunction(opts.handlersManageFocus, opts.handleConfirmPrompt)
+	} else {
+		onConfirm = gui.wrappedConfirmationFunction(opts.handlersManageFocus, opts.handleConfirm)
+	}
+
+	if err := gui.g.SetKeybinding("confirmation", nil, gui.getKey("universal.confirm"), gocui.ModNone, onConfirm); err != nil {
+		return err
+	}
+	if err := gui.g.SetKeybinding("confirmation", nil, gui.getKey("universal.confirm-alt1"), gocui.ModNone, onConfirm); err != nil {
+		return err
+	}
+
+	return gui.g.SetKeybinding("confirmation", nil, gui.getKey("universal.return"), gocui.ModNone, gui.wrappedConfirmationFunction(opts.handlersManageFocus, opts.handleClose))
+}
+
+func (gui *Gui) createErrorPanel(message string) error {
+	colorFunction := color.New(color.FgRed).SprintFunc()
+	coloredMessage := colorFunction(strings.TrimSpace(message))
+	if err := gui.refreshSidePanels(refreshOptions{mode: ASYNC}); err != nil {
+		return err
+	}
+
+	return gui.ask(askOpts{
+		title:  gui.Tr.SLocalize("Error"),
+		prompt: coloredMessage,
+	})
+}
+
+func (gui *Gui) surfaceError(err error) error {
+	for _, sentinelError := range gui.sentinelErrorsArr() {
+		if err == sentinelError {
+			return err
+		}
+	}
+
+	return gui.createErrorPanel(err.Error())
+}

pkg/gui/context.go

@@ -0,0 +1,722 @@
+package gui
+
+import (
+	"fmt"
+
+	"github.com/jesseduffield/gocui"
+)
+
+const (
+	SIDE_CONTEXT int = iota
+	MAIN_CONTEXT
+	TEMPORARY_POPUP
+	PERSISTENT_POPUP
+)
+
+const (
+	STATUS_CONTEXT_KEY              = "status"
+	FILES_CONTEXT_KEY               = "files"
+	LOCAL_BRANCHES_CONTEXT_KEY      = "localBranches"
+	REMOTES_CONTEXT_KEY             = "remotes"
+	REMOTE_BRANCHES_CONTEXT_KEY     = "remoteBranches"
+	TAGS_CONTEXT_KEY                = "tags"
+	BRANCH_COMMITS_CONTEXT_KEY      = "commits"
+	REFLOG_COMMITS_CONTEXT_KEY      = "reflogCommits"
+	SUB_COMMITS_CONTEXT_KEY         = "subCommits"
+	COMMIT_FILES_CONTEXT_KEY        = "commitFiles"
+	STASH_CONTEXT_KEY               = "stash"
+	MAIN_NORMAL_CONTEXT_KEY         = "normal"
+	MAIN_MERGING_CONTEXT_KEY        = "merging"
+	MAIN_PATCH_BUILDING_CONTEXT_KEY = "patchBuilding"
+	MAIN_STAGING_CONTEXT_KEY        = "staging"
+	MENU_CONTEXT_KEY                = "menu"
+	CREDENTIALS_CONTEXT_KEY         = "credentials"
+	CONFIRMATION_CONTEXT_KEY        = "confirmation"
+	SEARCH_CONTEXT_KEY              = "confirmation"
+	COMMIT_MESSAGE_CONTEXT_KEY      = "commitMessage"
+)
+
+type Context interface {
+	HandleFocus() error
+	HandleFocusLost() error
+	HandleRender() error
+	GetKind() int
+	GetViewName() string
+	GetWindowName() string
+	SetWindowName(string)
+	GetKey() string
+	SetParentContext(Context)
+
+	// we return a bool here to tell us whether or not the returned value just wraps a nil
+	GetParentContext() (Context, bool)
+	GetOptionsMap() map[string]string
+}
+
+type BasicContext struct {
+	OnFocus         func() error
+	OnFocusLost     func() error
+	OnRender        func() error
+	OnGetOptionsMap func() map[string]string
+	Kind            int
+	Key             string
+	ViewName        string
+}
+
+func (c BasicContext) GetOptionsMap() map[string]string {
+	if c.OnGetOptionsMap != nil {
+		return c.OnGetOptionsMap()
+	}
+	return nil
+}
+
+func (c BasicContext) SetWindowName(windowName string) {
+	panic("can't set window name on basic context")
+}
+
+func (c BasicContext) GetWindowName() string {
+	// TODO: fix this up
+	return c.GetViewName()
+}
+
+func (c BasicContext) SetParentContext(Context) {
+	panic("can't set parent context on basic context")
+}
+
+func (c BasicContext) GetParentContext() (Context, bool) {
+	return nil, false
+}
+
+func (c BasicContext) HandleRender() error {
+	if c.OnRender != nil {
+		return c.OnRender()
+	}
+	return nil
+}
+
+func (c BasicContext) GetViewName() string {
+	return c.ViewName
+}
+
+func (c BasicContext) HandleFocus() error {
+	return c.OnFocus()
+}
+
+func (c BasicContext) HandleFocusLost() error {
+	if c.OnFocusLost != nil {
+		return c.OnFocusLost()
+	}
+	return nil
+}
+
+func (c BasicContext) GetKind() int {
+	return c.Kind
+}
+
+func (c BasicContext) GetKey() string {
+	return c.Key
+}
+
+type SimpleContextNode struct {
+	Context Context
+}
+
+type RemotesContextNode struct {
+	Context  Context
+	Branches SimpleContextNode
+}
+
+type ContextTree struct {
+	Status        SimpleContextNode
+	Files         SimpleContextNode
+	Menu          SimpleContextNode
+	Branches      SimpleContextNode
+	Remotes       RemotesContextNode
+	Tags          SimpleContextNode
+	BranchCommits SimpleContextNode
+	CommitFiles   SimpleContextNode
+	ReflogCommits SimpleContextNode
+	SubCommits    SimpleContextNode
+	Stash         SimpleContextNode
+	Normal        SimpleContextNode
+	Staging       SimpleContextNode
+	PatchBuilding SimpleContextNode
+	Merging       SimpleContextNode
+	Credentials   SimpleContextNode
+	Confirmation  SimpleContextNode
+	CommitMessage SimpleContextNode
+	Search        SimpleContextNode
+}
+
+func (gui *Gui) allContexts() []Context {
+	return []Context{
+		gui.Contexts.Status.Context,
+		gui.Contexts.Files.Context,
+		gui.Contexts.Branches.Context,
+		gui.Contexts.Remotes.Context,
+		gui.Contexts.Remotes.Branches.Context,
+		gui.Contexts.Tags.Context,
+		gui.Contexts.BranchCommits.Context,
+		gui.Contexts.CommitFiles.Context,
+		gui.Contexts.ReflogCommits.Context,
+		gui.Contexts.Stash.Context,
+		gui.Contexts.Menu.Context,
+		gui.Contexts.Confirmation.Context,
+		gui.Contexts.Credentials.Context,
+		gui.Contexts.CommitMessage.Context,
+		gui.Contexts.Normal.Context,
+		gui.Contexts.Staging.Context,
+		gui.Contexts.Merging.Context,
+		gui.Contexts.PatchBuilding.Context,
+		gui.Contexts.SubCommits.Context,
+	}
+}
+
+func (gui *Gui) contextTree() ContextTree {
+	return ContextTree{
+		Status: SimpleContextNode{
+			Context: BasicContext{
+				OnFocus:  gui.handleStatusSelect,
+				Kind:     SIDE_CONTEXT,
+				ViewName: "status",
+				Key:      STATUS_CONTEXT_KEY,
+			},
+		},
+		Files: SimpleContextNode{
+			Context: gui.filesListContext(),
+		},
+		Menu: SimpleContextNode{
+			Context: gui.menuListContext(),
+		},
+		Remotes: RemotesContextNode{
+			Context: gui.remotesListContext(),
+			Branches: SimpleContextNode{
+				Context: gui.remoteBranchesListContext(),
+			},
+		},
+		BranchCommits: SimpleContextNode{
+			Context: gui.branchCommitsListContext(),
+		},
+		CommitFiles: SimpleContextNode{
+			Context: gui.commitFilesListContext(),
+		},
+		ReflogCommits: SimpleContextNode{
+			Context: gui.reflogCommitsListContext(),
+		},
+		SubCommits: SimpleContextNode{
+			Context: gui.subCommitsListContext(),
+		},
+		Branches: SimpleContextNode{
+			Context: gui.branchesListContext(),
+		},
+		Tags: SimpleContextNode{
+			Context: gui.tagsListContext(),
+		},
+		Stash: SimpleContextNode{
+			Context: gui.stashListContext(),
+		},
+		Normal: SimpleContextNode{
+			Context: BasicContext{
+				OnFocus: func() error {
+					return nil // TODO: should we do something here? We should allow for scrolling the panel
+				},
+				Kind:     MAIN_CONTEXT,
+				ViewName: "main",
+				Key:      MAIN_NORMAL_CONTEXT_KEY,
+			},
+		},
+		Staging: SimpleContextNode{
+			Context: BasicContext{
+				OnFocus: func() error {
+					return nil
+					// TODO: centralise the code here
+					// return gui.refreshStagingPanel(false, -1)
+				},
+				Kind:     MAIN_CONTEXT,
+				ViewName: "main",
+				Key:      MAIN_STAGING_CONTEXT_KEY,
+			},
+		},
+		PatchBuilding: SimpleContextNode{
+			Context: BasicContext{
+				OnFocus: func() error {
+					return nil
+					// TODO: centralise the code here
+					// return gui.refreshPatchBuildingPanel(-1)
+				},
+				Kind:     MAIN_CONTEXT,
+				ViewName: "main",
+				Key:      MAIN_PATCH_BUILDING_CONTEXT_KEY,
+			},
+		},
+		Merging: SimpleContextNode{
+			Context: BasicContext{
+				OnFocus: func() error {
+					return gui.refreshMergePanel()
+				},
+				Kind:            MAIN_CONTEXT,
+				ViewName:        "main",
+				Key:             MAIN_MERGING_CONTEXT_KEY,
+				OnGetOptionsMap: gui.getMergingOptions,
+			},
+		},
+		Credentials: SimpleContextNode{
+			Context: BasicContext{
+				OnFocus:  func() error { return gui.handleCredentialsViewFocused() },
+				Kind:     PERSISTENT_POPUP,
+				ViewName: "credentials",
+				Key:      CREDENTIALS_CONTEXT_KEY,
+			},
+		},
+		Confirmation: SimpleContextNode{
+			Context: BasicContext{
+				OnFocus:  func() error { return nil },
+				Kind:     TEMPORARY_POPUP,
+				ViewName: "confirmation",
+				Key:      CONFIRMATION_CONTEXT_KEY,
+			},
+		},
+		CommitMessage: SimpleContextNode{
+			Context: BasicContext{
+				OnFocus:  func() error { return gui.handleCommitMessageFocused() },
+				Kind:     PERSISTENT_POPUP,
+				ViewName: "commitMessage",
+				Key:      COMMIT_MESSAGE_CONTEXT_KEY,
+			},
+		},
+		Search: SimpleContextNode{
+			Context: BasicContext{
+				OnFocus:  func() error { return nil },
+				Kind:     PERSISTENT_POPUP,
+				ViewName: "search",
+				Key:      SEARCH_CONTEXT_KEY,
+			},
+		},
+	}
+}
+
+func (gui *Gui) initialViewContextMap() map[string]Context {
+	return map[string]Context{
+		"status":        gui.Contexts.Status.Context,
+		"files":         gui.Contexts.Files.Context,
+		"branches":      gui.Contexts.Branches.Context,
+		"commits":       gui.Contexts.BranchCommits.Context,
+		"commitFiles":   gui.Contexts.CommitFiles.Context,
+		"stash":         gui.Contexts.Stash.Context,
+		"menu":          gui.Contexts.Menu.Context,
+		"confirmation":  gui.Contexts.Confirmation.Context,
+		"credentials":   gui.Contexts.Credentials.Context,
+		"commitMessage": gui.Contexts.CommitMessage.Context,
+		"main":          gui.Contexts.Normal.Context,
+		"secondary":     gui.Contexts.Normal.Context,
+	}
+}
+
+func (gui *Gui) viewTabContextMap() map[string][]tabContext {
+	return map[string][]tabContext{
+		"branches": {
+			{
+				tab:      "Local Branches",
+				contexts: []Context{gui.Contexts.Branches.Context},
+			},
+			{
+				tab: "Remotes",
+				contexts: []Context{
+					gui.Contexts.Remotes.Context,
+					gui.Contexts.Remotes.Branches.Context,
+				},
+			},
+			{
+				tab:      "Tags",
+				contexts: []Context{gui.Contexts.Tags.Context},
+			},
+		},
+		"commits": {
+			{
+				tab:      "Commits",
+				contexts: []Context{gui.Contexts.BranchCommits.Context},
+			},
+			{
+				tab: "Reflog",
+				contexts: []Context{
+					gui.Contexts.ReflogCommits.Context,
+				},
+			},
+		},
+	}
+}
+
+func (gui *Gui) currentContextKeyIgnoringPopups() string {
+	stack := gui.State.ContextStack
+
+	for i := range stack {
+		reversedIndex := len(stack) - 1 - i
+		context := stack[reversedIndex]
+		kind := stack[reversedIndex].GetKind()
+		if kind != TEMPORARY_POPUP && kind != PERSISTENT_POPUP {
+			return context.GetKey()
+		}
+	}
+
+	return ""
+}
+
+func (gui *Gui) switchContext(c Context) error {
+	gui.g.Update(func(*gocui.Gui) error {
+		// push onto stack
+		// if we are switching to a side context, remove all other contexts in the stack
+		if c.GetKind() == SIDE_CONTEXT {
+			for _, stackContext := range gui.State.ContextStack {
+				if stackContext.GetKey() != c.GetKey() {
+					if err := gui.deactivateContext(stackContext); err != nil {
+						return err
+					}
+				}
+			}
+			gui.State.ContextStack = []Context{c}
+		} else {
+			// TODO: think about other exceptional cases
+			gui.State.ContextStack = append(gui.State.ContextStack, c)
+		}
+
+		return gui.activateContext(c)
+	})
+
+	return nil
+}
+
+// switchContextToView is to be used when you don't know which context you
+// want to switch to: you only know the view that you want to switch to. It will
+// look up the context currently active for that view and switch to that context
+func (gui *Gui) switchContextToView(viewName string) error {
+	return gui.switchContext(gui.State.ViewContextMap[viewName])
+}
+
+func (gui *Gui) returnFromContext() error {
+	gui.g.Update(func(*gocui.Gui) error {
+		// TODO: add mutexes
+
+		if len(gui.State.ContextStack) == 1 {
+			// cannot escape from bottommost context
+			return nil
+		}
+
+		n := len(gui.State.ContextStack) - 1
+
+		currentContext := gui.State.ContextStack[n]
+		newContext := gui.State.ContextStack[n-1]
+
+		gui.State.ContextStack = gui.State.ContextStack[:n]
+
+		if err := gui.deactivateContext(currentContext); err != nil {
+			return err
+		}
+
+		return gui.activateContext(newContext)
+	})
+
+	return nil
+}
+
+func (gui *Gui) deactivateContext(c Context) error {
+	// if we are the kind of context that is sent to back upon deactivation, we should do that
+	if c.GetKind() == TEMPORARY_POPUP || c.GetKind() == PERSISTENT_POPUP {
+		_, _ = gui.g.SetViewOnBottom(c.GetViewName())
+	}
+
+	if err := c.HandleFocusLost(); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// postRefreshUpdate is to be called on a context after the state that it depends on has been refreshed
+// if the context's view is set to another context we do nothing.
+// if the context's view is the current view we trigger a focus; re-selecting the current item.
+func (gui *Gui) postRefreshUpdate(c Context) error {
+	v, err := gui.g.View(c.GetViewName())
+	if err != nil {
+		return nil
+	}
+
+	if v.Context != c.GetKey() {
+		return nil
+	}
+
+	if err := c.HandleRender(); err != nil {
+		return err
+	}
+
+	if gui.currentViewName() == c.GetViewName() {
+		if err := c.HandleFocus(); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (gui *Gui) activateContext(c Context) error {
+	viewName := c.GetViewName()
+	v, err := gui.g.View(viewName)
+	// if view no longer exists, pop again
+	if err != nil {
+		return gui.returnFromContext()
+	}
+	originalViewContextKey := v.Context
+
+	// ensure that any other window for which this view was active is now set to the default for that window.
+	gui.setViewAsActiveForWindow(viewName)
+
+	if viewName == "main" {
+		gui.changeMainViewsContext(c.GetKey())
+	} else {
+		gui.changeMainViewsContext("normal")
+	}
+
+	gui.setViewTabForContext(c)
+
+	if _, err := gui.g.SetCurrentView(viewName); err != nil {
+		return err
+	}
+
+	if _, err := gui.g.SetViewOnTop(viewName); err != nil {
+		return err
+	}
+
+	// if the new context's view was previously displaying another context, render the new context
+	if originalViewContextKey != c.GetKey() {
+		if err := c.HandleRender(); err != nil {
+			return err
+		}
+	}
+
+	v.Context = c.GetKey()
+
+	gui.g.Cursor = v.Editable
+
+	// render the options available for the current context at the bottom of the screen
+	optionsMap := c.GetOptionsMap()
+	if optionsMap == nil {
+		optionsMap = gui.globalOptionsMap()
+	}
+	gui.renderOptionsMap(optionsMap)
+
+	if err := c.HandleFocus(); err != nil {
+		return err
+	}
+
+	// TODO: consider removing this and instead depending on the .Context field of views
+	gui.State.ViewContextMap[c.GetViewName()] = c
+
+	return nil
+}
+
+func (gui *Gui) renderContextStack() string {
+	result := ""
+	for _, context := range gui.State.ContextStack {
+		result += context.GetKey() + "\n"
+	}
+	return result
+}
+
+func (gui *Gui) currentContext() Context {
+	if len(gui.State.ContextStack) == 0 {
+		return gui.defaultSideContext()
+	}
+
+	return gui.State.ContextStack[len(gui.State.ContextStack)-1]
+}
+
+func (gui *Gui) currentSideContext() *ListContext {
+	stack := gui.State.ContextStack
+
+	// on startup the stack can be empty so we'll return an empty string in that case
+	if len(stack) == 0 {
+		return nil
+	}
+
+	// find the first context in the stack with the type of SIDE_CONTEXT
+	for i := range stack {
+		context := stack[len(stack)-1-i]
+
+		if context.GetKind() == SIDE_CONTEXT {
+			// not all side contexts are list contexts (e.g. the status panel)
+			listContext, ok := context.(*ListContext)
+			if !ok {
+				return nil
+			}
+			return listContext
+		}
+	}
+
+	return nil
+}
+
+func (gui *Gui) defaultSideContext() Context {
+	return gui.Contexts.Files.Context
+}
+
+func (gui *Gui) setInitialViewContexts() {
+	// arguably we should only have our ViewContextMap and we should do away with
+	// contexts on views, or vice versa
+	for viewName, context := range gui.State.ViewContextMap {
+		// see if the view exists. If it does, set the context on it
+		view, err := gui.g.View(viewName)
+		if err != nil {
+			continue
+		}
+
+		view.Context = context.GetKey()
+	}
+}
+
+// getFocusLayout returns a manager function for when view gain and lose focus
+func (gui *Gui) getFocusLayout() func(g *gocui.Gui) error {
+	var previousView *gocui.View
+	return func(g *gocui.Gui) error {
+		newView := gui.g.CurrentView()
+		if err := gui.onViewFocusChange(); err != nil {
+			return err
+		}
+		// for now we don't consider losing focus to a popup panel as actually losing focus
+		if newView != previousView && !gui.isPopupPanel(newView.Name()) {
+			if err := gui.onViewFocusLost(previousView, newView); err != nil {
+				return err
+			}
+
+			previousView = newView
+		}
+		return nil
+	}
+}
+
+func (gui *Gui) onViewFocusChange() error {
+	currentView := gui.g.CurrentView()
+	for _, view := range gui.g.Views() {
+		view.Highlight = view.Name() != "main" && view == currentView
+	}
+	return nil
+}
+
+func (gui *Gui) onViewFocusLost(v *gocui.View, newView *gocui.View) error {
+	if v == nil {
+		return nil
+	}
+
+	if v.IsSearching() && newView.Name() != "search" {
+		if err := gui.onSearchEscape(); err != nil {
+			return err
+		}
+	}
+
+	gui.Log.Info(v.Name() + " focus lost")
+	return nil
+}
+
+// changeContext is a helper function for when we want to change a 'main' context
+// which currently just means a context that affects both the main and secondary views
+// other views can have their context changed directly but this function helps
+// keep the main and secondary views in sync
+func (gui *Gui) changeMainViewsContext(contextKey string) {
+	if gui.State.MainContext == contextKey {
+		return
+	}
+
+	switch contextKey {
+	case MAIN_NORMAL_CONTEXT_KEY, MAIN_PATCH_BUILDING_CONTEXT_KEY, MAIN_STAGING_CONTEXT_KEY, MAIN_MERGING_CONTEXT_KEY:
+		gui.getMainView().Context = contextKey
+		gui.getSecondaryView().Context = contextKey
+	default:
+		panic(fmt.Sprintf("unknown context for main: %s", contextKey))
+	}
+
+	gui.State.MainContext = contextKey
+}
+
+func (gui *Gui) viewTabNames(viewName string) []string {
+	tabContexts := gui.ViewTabContextMap[viewName]
+
+	result := make([]string, len(tabContexts))
+	for i, tabContext := range tabContexts {
+		result[i] = tabContext.tab
+	}
+
+	return result
+}
+
+func (gui *Gui) setViewTabForContext(c Context) {
+	// search for the context in our map and if we find it, set the tab for the corresponding view
+	tabContexts, ok := gui.ViewTabContextMap[c.GetViewName()]
+	if !ok {
+		return
+	}
+
+	for tabIndex, tabContext := range tabContexts {
+		for _, context := range tabContext.contexts {
+			if context.GetKey() == c.GetKey() {
+				// get the view, set the tab
+				v, err := gui.g.View(c.GetViewName())
+				if err != nil {
+					gui.Log.Error(err)
+					return
+				}
+				v.TabIndex = tabIndex
+				return
+			}
+		}
+	}
+}
+
+type tabContext struct {
+	tab      string
+	contexts []Context
+}
+
+func (gui *Gui) contextForContextKey(contextKey string) Context {
+	for _, context := range gui.allContexts() {
+		if context.GetKey() == contextKey {
+			return context
+		}
+	}
+
+	panic(fmt.Sprintf("context now found for key %s", contextKey))
+}
+
+func (gui *Gui) rerenderView(viewName string) error {
+	v, err := gui.g.View(viewName)
+	if err != nil {
+		return nil
+	}
+
+	contextKey := v.Context
+	context := gui.contextForContextKey(contextKey)
+
+	return context.HandleRender()
+}
+
+func (gui *Gui) getCurrentSideView() *gocui.View {
+	currentSideContext := gui.currentSideContext()
+	if currentSideContext == nil {
+		return nil
+	}
+
+	view, _ := gui.g.View(currentSideContext.GetViewName())
+
+	return view
+}
+
+func (gui *Gui) getSideContextSelectedItemId() string {
+	currentSideContext := gui.currentSideContext()
+	if currentSideContext == nil {
+		return ""
+	}
+
+	item, ok := currentSideContext.GetSelectedItem()
+
+	if ok {
+		return item.ID()
+	}
+
+	return ""
+}

pkg/gui/credentials_panel.go

@@ -0,0 +1,77 @@
+package gui
+
+import (
+	"strings"
+
+	"github.com/jesseduffield/gocui"
+)
+
+type credentials chan string
+
+// promptUserForCredential wait for a username or password input from the credentials popup
+func (gui *Gui) promptUserForCredential(passOrUname string) string {
+	gui.credentials = make(chan string)
+	gui.g.Update(func(g *gocui.Gui) error {
+		credentialsView, _ := g.View("credentials")
+		if passOrUname == "username" {
+			credentialsView.Title = gui.Tr.SLocalize("CredentialsUsername")
+			credentialsView.Mask = 0
+		} else {
+			credentialsView.Title = gui.Tr.SLocalize("CredentialsPassword")
+			credentialsView.Mask = '*'
+		}
+
+		if err := gui.switchContext(gui.Contexts.Credentials.Context); err != nil {
+			return err
+		}
+
+		gui.RenderCommitLength()
+		return nil
+	})
+
+	// wait for username/passwords input
+	userInput := <-gui.credentials
+	return userInput + "\n"
+}
+
+func (gui *Gui) handleSubmitCredential(g *gocui.Gui, v *gocui.View) error {
+	message := gui.trimmedContent(v)
+	gui.credentials <- message
+	gui.clearEditorView(v)
+	if err := gui.returnFromContext(); err != nil {
+		return err
+	}
+
+	return gui.refreshSidePanels(refreshOptions{})
+}
+
+func (gui *Gui) handleCloseCredentialsView(g *gocui.Gui, v *gocui.View) error {
+	gui.credentials <- ""
+	return gui.returnFromContext()
+}
+
+func (gui *Gui) handleCredentialsViewFocused() error {
+	message := gui.Tr.TemplateLocalize(
+		"CloseConfirm",
+		Teml{
+			"keyBindClose":   gui.getKeyDisplay("universal.return"),
+			"keyBindConfirm": gui.getKeyDisplay("universal.confirm"),
+		},
+	)
+	gui.renderString("options", message)
+	return nil
+}
+
+// handleCredentialsPopup handles the views after executing a command that might ask for credentials
+func (gui *Gui) handleCredentialsPopup(cmdErr error) {
+	if cmdErr != nil {
+		errMessage := cmdErr.Error()
+		if strings.Contains(errMessage, "Invalid username or password") {
+			errMessage = gui.Tr.SLocalize("PassUnameWrong")
+		}
+		// we are not logging this error because it may contain a password
+		gui.createErrorPanel(errMessage)
+	} else {
+		_ = gui.closeConfirmationPrompt(false)
+	}
+}

pkg/gui/diffing.go

@@ -0,0 +1,158 @@
+package gui
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/jesseduffield/gocui"
+)
+
+func (gui *Gui) exitDiffMode() error {
+	gui.State.Modes.Diffing = Diffing{}
+	return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+}
+
+func (gui *Gui) renderDiff() error {
+	cmd := gui.OSCommand.ExecutableFromString(
+		fmt.Sprintf("git diff --color %s", gui.diffStr()),
+	)
+	task := gui.createRunPtyTask(cmd)
+
+	return gui.refreshMainViews(refreshMainOpts{
+		main: &viewUpdateOpts{
+			title: "Diff",
+			task:  task,
+		},
+	})
+}
+
+// currentDiffTerminals returns the current diff terminals of the currently selected item.
+// in the case of a branch it returns both the branch and it's upstream name,
+// which becomes an option when you bring up the diff menu, but when you're just
+// flicking through branches it will be using the local branch name.
+func (gui *Gui) currentDiffTerminals() []string {
+	switch gui.currentContext().GetKey() {
+	case "":
+		return nil
+	case FILES_CONTEXT_KEY:
+		return []string{""}
+	case COMMIT_FILES_CONTEXT_KEY:
+		return []string{gui.State.Panels.CommitFiles.refName}
+	case LOCAL_BRANCHES_CONTEXT_KEY:
+		// for our local branches we want to include both the branch and its upstream
+		branch := gui.getSelectedBranch()
+		if branch != nil {
+			names := []string{branch.ID()}
+			if branch.UpstreamName != "" {
+				names = append(names, branch.UpstreamName)
+			}
+			return names
+		}
+		return nil
+	default:
+		context := gui.currentSideContext()
+		if context == nil {
+			return nil
+		}
+		item, ok := context.GetSelectedItem()
+		if !ok {
+			return nil
+		}
+		return []string{item.ID()}
+	}
+}
+
+func (gui *Gui) currentDiffTerminal() string {
+	names := gui.currentDiffTerminals()
+	if len(names) == 0 {
+		return ""
+	}
+	return names[0]
+}
+
+func (gui *Gui) currentlySelectedFilename() string {
+	switch gui.currentContext().GetKey() {
+	case FILES_CONTEXT_KEY, COMMIT_FILES_CONTEXT_KEY:
+		return gui.getSideContextSelectedItemId()
+	default:
+		return ""
+	}
+}
+
+func (gui *Gui) diffStr() string {
+	output := gui.State.Modes.Diffing.Ref
+
+	right := gui.currentDiffTerminal()
+	if right != "" {
+		output += " " + right
+	}
+
+	if gui.State.Modes.Diffing.Reverse {
+		output += " -R"
+	}
+
+	file := gui.currentlySelectedFilename()
+	if file != "" {
+		output += " -- " + file
+	} else if gui.State.Modes.Filtering.Active() {
+		output += " -- " + gui.State.Modes.Filtering.Path
+	}
+
+	return output
+}
+
+func (gui *Gui) handleCreateDiffingMenuPanel(g *gocui.Gui, v *gocui.View) error {
+	if gui.popupPanelFocused() {
+		return nil
+	}
+
+	names := gui.currentDiffTerminals()
+
+	menuItems := []*menuItem{}
+	for _, name := range names {
+		name := name
+		menuItems = append(menuItems, []*menuItem{
+			{
+				displayString: fmt.Sprintf("%s %s", gui.Tr.SLocalize("diff"), name),
+				onPress: func() error {
+					gui.State.Modes.Diffing.Ref = name
+					// can scope this down based on current view but too lazy right now
+					return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+				},
+			},
+		}...)
+	}
+
+	menuItems = append(menuItems, []*menuItem{
+		{
+			displayString: gui.Tr.SLocalize("enterRefToDiff"),
+			onPress: func() error {
+				return gui.prompt(gui.Tr.SLocalize("enteRefName"), "", func(response string) error {
+					gui.State.Modes.Diffing.Ref = strings.TrimSpace(response)
+					return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+				})
+			},
+		},
+	}...)
+
+	if gui.State.Modes.Diffing.Active() {
+		menuItems = append(menuItems, []*menuItem{
+			{
+				displayString: gui.Tr.SLocalize("swapDiff"),
+				onPress: func() error {
+					gui.State.Modes.Diffing.Reverse = !gui.State.Modes.Diffing.Reverse
+					return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+				},
+			},
+			{
+				displayString: gui.Tr.SLocalize("exitDiffMode"),
+				onPress: func() error {
+					gui.State.Modes.Diffing = Diffing{}
+					return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+				},
+			},
+		}...)
+	}
+
+	return gui.createMenu(gui.Tr.SLocalize("DiffingMenuTitle"), menuItems, createMenuOptions{showCancel: true})
+}

pkg/gui/discard_changes_menu_panel.go

@@ -0,0 +1,39 @@
+package gui
+
+import (
+	"github.com/jesseduffield/gocui"
+)
+
+func (gui *Gui) handleCreateDiscardMenu(g *gocui.Gui, v *gocui.View) error {
+	file := gui.getSelectedFile()
+	if file == nil {
+		return nil
+	}
+
+	menuItems := []*menuItem{
+		{
+			displayString: gui.Tr.SLocalize("discardAllChanges"),
+			onPress: func() error {
+				if err := gui.GitCommand.DiscardAllFileChanges(file); err != nil {
+					return gui.surfaceError(err)
+				}
+				return gui.refreshSidePanels(refreshOptions{mode: ASYNC, scope: []int{FILES}})
+			},
+		},
+	}
+
+	if file.HasStagedChanges && file.HasUnstagedChanges {
+		menuItems = append(menuItems, &menuItem{
+			displayString: gui.Tr.SLocalize("discardUnstagedChanges"),
+			onPress: func() error {
+				if err := gui.GitCommand.DiscardUnstagedFileChanges(file); err != nil {
+					return gui.surfaceError(err)
+				}
+
+				return gui.refreshSidePanels(refreshOptions{mode: ASYNC, scope: []int{FILES}})
+			},
+		})
+	}
+
+	return gui.createMenu(file.Name, menuItems, createMenuOptions{showCancel: true})
+}

pkg/gui/file_watching.go

@@ -0,0 +1,146 @@
+package gui
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/fsnotify/fsnotify"
+	"github.com/jesseduffield/lazygit/pkg/commands"
+	"github.com/sirupsen/logrus"
+)
+
+// macs for some bizarre reason cap the number of watchable files to 256.
+// there's no obvious platform agonstic way to check the situation of the user's
+// computer so we're just arbitrarily capping at 200. This isn't so bad because
+// file watching is only really an added bonus for faster refreshing.
+const MAX_WATCHED_FILES = 50
+
+type fileWatcher struct {
+	Watcher          *fsnotify.Watcher
+	WatchedFilenames []string
+	Log              *logrus.Entry
+	Disabled         bool
+}
+
+func NewFileWatcher(log *logrus.Entry) *fileWatcher {
+	// TODO: get this going again, and ensure we don't see any crashes from it
+	return &fileWatcher{
+		Disabled: true,
+	}
+
+	watcher, err := fsnotify.NewWatcher()
+
+	if err != nil {
+		log.Error(err)
+		return &fileWatcher{
+			Disabled: true,
+		}
+	}
+
+	return &fileWatcher{
+		Watcher:          watcher,
+		Log:              log,
+		WatchedFilenames: make([]string, 0, MAX_WATCHED_FILES),
+	}
+}
+
+func (w *fileWatcher) watchingFilename(filename string) bool {
+	for _, watchedFilename := range w.WatchedFilenames {
+		if watchedFilename == filename {
+			return true
+		}
+	}
+	return false
+}
+
+func (w *fileWatcher) popOldestFilename() {
+	// shift the last off the array to make way for this one
+	oldestFilename := w.WatchedFilenames[0]
+	w.WatchedFilenames = w.WatchedFilenames[1:]
+	if err := w.Watcher.Remove(oldestFilename); err != nil {
+		// swallowing errors here because it doesn't really matter if we can't unwatch a file
+		w.Log.Warn(err)
+	}
+}
+
+func (w *fileWatcher) watchFilename(filename string) {
+	w.Log.Warn(filename)
+	if err := w.Watcher.Add(filename); err != nil {
+		// swallowing errors here because it doesn't really matter if we can't watch a file
+		w.Log.Warn(err)
+	}
+
+	// assume we're watching it now to be safe
+	w.WatchedFilenames = append(w.WatchedFilenames, filename)
+}
+
+func (w *fileWatcher) addFilesToFileWatcher(files []*commands.File) error {
+	if w.Disabled {
+		return nil
+	}
+
+	if len(files) == 0 {
+		return nil
+	}
+
+	// watch the files for changes
+	dirName, err := os.Getwd()
+	if err != nil {
+		return err
+	}
+
+	for _, file := range files[0:min(MAX_WATCHED_FILES, len(files))] {
+		if file.Deleted {
+			continue
+		}
+		filename := filepath.Join(dirName, file.Name)
+		if w.watchingFilename(filename) {
+			continue
+		}
+		if len(w.WatchedFilenames) > MAX_WATCHED_FILES {
+			w.popOldestFilename()
+		}
+
+		w.watchFilename(filename)
+	}
+
+	return nil
+}
+
+func min(a int, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}
+
+// NOTE: given that we often edit files ourselves, this may make us end up refreshing files too often
+// TODO: consider watching the whole directory recursively (could be more expensive)
+func (gui *Gui) watchFilesForChanges() {
+	gui.fileWatcher = NewFileWatcher(gui.Log)
+	if gui.fileWatcher.Disabled {
+		return
+	}
+	go func() {
+		for {
+			select {
+			// watch for events
+			case event := <-gui.fileWatcher.Watcher.Events:
+				if event.Op == fsnotify.Chmod {
+					// for some reason we pick up chmod events when they don't actually happen
+					continue
+				}
+				// only refresh if we're not already
+				if !gui.State.IsRefreshingFiles {
+					gui.refreshSidePanels(refreshOptions{mode: ASYNC, scope: []int{FILES}})
+				}
+
+			// watch for errors
+			case err := <-gui.fileWatcher.Watcher.Errors:
+				if err != nil {
+					gui.Log.Warn(err)
+				}
+			}
+		}
+	}()
+}

pkg/gui/files_panel.go

@@ -0,0 +1,648 @@
+package gui
+
+import (
+
+	// "io"
+	// "io/ioutil"
+
+	// "strings"
+
+	"fmt"
+	"regexp"
+	"strings"
+
+	"github.com/jesseduffield/gocui"
+	"github.com/jesseduffield/lazygit/pkg/commands"
+	"github.com/jesseduffield/lazygit/pkg/utils"
+)
+
+// list panel functions
+
+func (gui *Gui) getSelectedFile() *commands.File {
+	selectedLine := gui.State.Panels.Files.SelectedLineIdx
+	if selectedLine == -1 {
+		return nil
+	}
+
+	return gui.State.Files[selectedLine]
+}
+
+func (gui *Gui) selectFile(alreadySelected bool) error {
+	gui.getFilesView().FocusPoint(0, gui.State.Panels.Files.SelectedLineIdx)
+
+	file := gui.getSelectedFile()
+	if file == nil {
+		return gui.refreshMainViews(refreshMainOpts{
+			main: &viewUpdateOpts{
+				title: "",
+				task:  gui.createRenderStringTask(gui.Tr.SLocalize("NoChangedFiles")),
+			},
+		})
+	}
+
+	if !alreadySelected {
+		// TODO: pull into update task interface
+		if err := gui.resetOrigin(gui.getMainView()); err != nil {
+			return err
+		}
+		if err := gui.resetOrigin(gui.getSecondaryView()); err != nil {
+			return err
+		}
+	}
+
+	if file.HasInlineMergeConflicts {
+		return gui.refreshMergePanel()
+	}
+
+	cmdStr := gui.GitCommand.WorktreeFileDiffCmdStr(file, false, !file.HasUnstagedChanges && file.HasStagedChanges)
+	cmd := gui.OSCommand.ExecutableFromString(cmdStr)
+
+	refreshOpts := refreshMainOpts{main: &viewUpdateOpts{
+		title: gui.Tr.SLocalize("UnstagedChanges"),
+		task:  gui.createRunPtyTask(cmd),
+	}}
+
+	if file.HasStagedChanges && file.HasUnstagedChanges {
+		cmdStr := gui.GitCommand.WorktreeFileDiffCmdStr(file, false, true)
+		cmd := gui.OSCommand.ExecutableFromString(cmdStr)
+
+		refreshOpts.secondary = &viewUpdateOpts{
+			title: gui.Tr.SLocalize("StagedChanges"),
+			task:  gui.createRunPtyTask(cmd),
+		}
+	} else if !file.HasUnstagedChanges {
+		refreshOpts.main.title = gui.Tr.SLocalize("StagedChanges")
+	}
+
+	return gui.refreshMainViews(refreshOpts)
+}
+
+func (gui *Gui) refreshFiles() error {
+	gui.State.RefreshingFilesMutex.Lock()
+	gui.State.IsRefreshingFiles = true
+	defer func() {
+		gui.State.IsRefreshingFiles = false
+		gui.State.RefreshingFilesMutex.Unlock()
+	}()
+
+	selectedFile := gui.getSelectedFile()
+
+	filesView := gui.getFilesView()
+	if filesView == nil {
+		// if the filesView hasn't been instantiated yet we just return
+		return nil
+	}
+	if err := gui.refreshStateFiles(); err != nil {
+		return err
+	}
+
+	gui.g.Update(func(g *gocui.Gui) error {
+		if err := gui.Contexts.Files.Context.HandleRender(); err != nil {
+			return err
+		}
+
+		if g.CurrentView() == filesView || (g.CurrentView() == gui.getMainView() && g.CurrentView().Context == MAIN_MERGING_CONTEXT_KEY) {
+			newSelectedFile := gui.getSelectedFile()
+			alreadySelected := selectedFile != nil && newSelectedFile != nil && newSelectedFile.Name == selectedFile.Name
+			return gui.selectFile(alreadySelected)
+		}
+		return nil
+	})
+
+	return nil
+}
+
+// specific functions
+
+func (gui *Gui) stagedFiles() []*commands.File {
+	files := gui.State.Files
+	result := make([]*commands.File, 0)
+	for _, file := range files {
+		if file.HasStagedChanges {
+			result = append(result, file)
+		}
+	}
+	return result
+}
+
+func (gui *Gui) trackedFiles() []*commands.File {
+	files := gui.State.Files
+	result := make([]*commands.File, 0, len(files))
+	for _, file := range files {
+		if file.Tracked {
+			result = append(result, file)
+		}
+	}
+	return result
+}
+
+func (gui *Gui) stageSelectedFile(g *gocui.Gui) error {
+	file := gui.getSelectedFile()
+	if file == nil {
+		return nil
+	}
+
+	return gui.GitCommand.StageFile(file.Name)
+}
+
+func (gui *Gui) handleEnterFile(g *gocui.Gui, v *gocui.View) error {
+	return gui.enterFile(false, -1)
+}
+
+func (gui *Gui) enterFile(forceSecondaryFocused bool, selectedLineIdx int) error {
+	file := gui.getSelectedFile()
+	if file == nil {
+		return nil
+	}
+
+	if file.HasInlineMergeConflicts {
+		return gui.handleSwitchToMerge()
+	}
+	if file.HasMergeConflicts {
+		return gui.createErrorPanel(gui.Tr.SLocalize("FileStagingRequirements"))
+	}
+	gui.switchContext(gui.Contexts.Staging.Context)
+
+	return gui.refreshStagingPanel(forceSecondaryFocused, selectedLineIdx) // TODO: check if this is broken, try moving into context code
+}
+
+func (gui *Gui) handleFilePress() error {
+	file := gui.getSelectedFile()
+	if file == nil {
+		return nil
+	}
+
+	if file.HasInlineMergeConflicts {
+		return gui.handleSwitchToMerge()
+	}
+
+	if file.HasUnstagedChanges {
+		if err := gui.GitCommand.StageFile(file.Name); err != nil {
+			return gui.surfaceError(err)
+		}
+	} else {
+		if err := gui.GitCommand.UnStageFile(file.Name, file.Tracked); err != nil {
+			return gui.surfaceError(err)
+		}
+	}
+
+	if err := gui.refreshSidePanels(refreshOptions{scope: []int{FILES}}); err != nil {
+		return err
+	}
+
+	return gui.selectFile(true)
+}
+
+func (gui *Gui) allFilesStaged() bool {
+	for _, file := range gui.State.Files {
+		if file.HasUnstagedChanges {
+			return false
+		}
+	}
+	return true
+}
+
+func (gui *Gui) focusAndSelectFile() error {
+	return gui.selectFile(false)
+}
+
+func (gui *Gui) handleStageAll(g *gocui.Gui, v *gocui.View) error {
+	var err error
+	if gui.allFilesStaged() {
+		err = gui.GitCommand.UnstageAll()
+	} else {
+		err = gui.GitCommand.StageAll()
+	}
+	if err != nil {
+		_ = gui.surfaceError(err)
+	}
+
+	if err := gui.refreshSidePanels(refreshOptions{scope: []int{FILES}}); err != nil {
+		return err
+	}
+
+	return gui.selectFile(false)
+}
+
+func (gui *Gui) handleIgnoreFile(g *gocui.Gui, v *gocui.View) error {
+	file := gui.getSelectedFile()
+	if file == nil {
+		return nil
+	}
+
+	if file.Tracked {
+		return gui.ask(askOpts{
+			title:  gui.Tr.SLocalize("IgnoreTracked"),
+			prompt: gui.Tr.SLocalize("IgnoreTrackedPrompt"),
+			handleConfirm: func() error {
+				if err := gui.GitCommand.Ignore(file.Name); err != nil {
+					return err
+				}
+				if err := gui.GitCommand.RemoveTrackedFiles(file.Name); err != nil {
+					return err
+				}
+				return gui.refreshSidePanels(refreshOptions{scope: []int{FILES}})
+			},
+		})
+	}
+
+	if err := gui.GitCommand.Ignore(file.Name); err != nil {
+		return gui.surfaceError(err)
+	}
+
+	return gui.refreshSidePanels(refreshOptions{scope: []int{FILES}})
+}
+
+func (gui *Gui) handleWIPCommitPress(g *gocui.Gui, filesView *gocui.View) error {
+	skipHookPreifx := gui.Config.GetUserConfig().GetString("git.skipHookPrefix")
+	if skipHookPreifx == "" {
+		return gui.createErrorPanel(gui.Tr.SLocalize("SkipHookPrefixNotConfigured"))
+	}
+
+	gui.renderStringSync("commitMessage", skipHookPreifx)
+	if err := gui.getCommitMessageView().SetCursor(len(skipHookPreifx), 0); err != nil {
+		return err
+	}
+
+	return gui.handleCommitPress()
+}
+
+func (gui *Gui) handleCommitPress() error {
+	if len(gui.stagedFiles()) == 0 {
+		return gui.promptToStageAllAndRetry(func() error {
+			return gui.handleCommitPress()
+		})
+	}
+
+	commitMessageView := gui.getCommitMessageView()
+	prefixPattern := gui.Config.GetUserConfig().GetString("git.commitPrefixes." + utils.GetCurrentRepoName() + ".pattern")
+	prefixReplace := gui.Config.GetUserConfig().GetString("git.commitPrefixes." + utils.GetCurrentRepoName() + ".replace")
+	if len(prefixPattern) > 0 && len(prefixReplace) > 0 {
+		rgx, err := regexp.Compile(prefixPattern)
+		if err != nil {
+			return gui.createErrorPanel(fmt.Sprintf("%s: %s", gui.Tr.SLocalize("commitPrefixPatternError"), err.Error()))
+		}
+		prefix := rgx.ReplaceAllString(gui.getCheckedOutBranch().Name, prefixReplace)
+		gui.renderString("commitMessage", prefix)
+		if err := commitMessageView.SetCursor(len(prefix), 0); err != nil {
+			return err
+		}
+	}
+
+	gui.g.Update(func(g *gocui.Gui) error {
+		if err := gui.switchContext(gui.Contexts.CommitMessage.Context); err != nil {
+			return err
+		}
+
+		gui.RenderCommitLength()
+		return nil
+	})
+	return nil
+}
+
+func (gui *Gui) promptToStageAllAndRetry(retry func() error) error {
+	return gui.ask(askOpts{
+		title:  gui.Tr.SLocalize("NoFilesStagedTitle"),
+		prompt: gui.Tr.SLocalize("NoFilesStagedPrompt"),
+		handleConfirm: func() error {
+			if err := gui.GitCommand.StageAll(); err != nil {
+				return gui.surfaceError(err)
+			}
+			if err := gui.refreshFiles(); err != nil {
+				return gui.surfaceError(err)
+			}
+
+			return retry()
+		},
+	})
+}
+
+func (gui *Gui) handleAmendCommitPress() error {
+	if len(gui.stagedFiles()) == 0 {
+		return gui.promptToStageAllAndRetry(func() error {
+			return gui.handleAmendCommitPress()
+		})
+	}
+
+	if len(gui.State.Commits) == 0 {
+		return gui.createErrorPanel(gui.Tr.SLocalize("NoCommitToAmend"))
+	}
+
+	return gui.ask(askOpts{
+		title:  strings.Title(gui.Tr.SLocalize("AmendLastCommit")),
+		prompt: gui.Tr.SLocalize("SureToAmend"),
+		handleConfirm: func() error {
+			return gui.WithWaitingStatus(gui.Tr.SLocalize("AmendingStatus"), func() error {
+				ok, err := gui.runSyncOrAsyncCommand(gui.GitCommand.AmendHead())
+				if err != nil {
+					return err
+				}
+				if !ok {
+					return nil
+				}
+
+				return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+			})
+		},
+	})
+}
+
+// handleCommitEditorPress - handle when the user wants to commit changes via
+// their editor rather than via the popup panel
+func (gui *Gui) handleCommitEditorPress() error {
+	if len(gui.stagedFiles()) == 0 {
+		return gui.promptToStageAllAndRetry(func() error {
+			return gui.handleCommitEditorPress()
+		})
+	}
+
+	gui.PrepareSubProcess("git", "commit")
+	return nil
+}
+
+// PrepareSubProcess - prepare a subprocess for execution and tell the gui to switch to it
+func (gui *Gui) PrepareSubProcess(commands ...string) {
+	gui.SubProcess = gui.GitCommand.PrepareCommitSubProcess()
+	gui.g.Update(func(g *gocui.Gui) error {
+		return gui.Errors.ErrSubProcess
+	})
+}
+
+func (gui *Gui) editFile(filename string) error {
+	_, err := gui.runSyncOrAsyncCommand(gui.OSCommand.EditFile(filename))
+	return err
+}
+
+func (gui *Gui) handleFileEdit(g *gocui.Gui, v *gocui.View) error {
+	file := gui.getSelectedFile()
+	if file == nil {
+		return nil
+	}
+
+	return gui.editFile(file.Name)
+}
+
+func (gui *Gui) handleFileOpen(g *gocui.Gui, v *gocui.View) error {
+	file := gui.getSelectedFile()
+	if file == nil {
+		return nil
+	}
+	return gui.openFile(file.Name)
+}
+
+func (gui *Gui) handleRefreshFiles(g *gocui.Gui, v *gocui.View) error {
+	return gui.refreshSidePanels(refreshOptions{scope: []int{FILES}})
+}
+
+func (gui *Gui) refreshStateFiles() error {
+	// keep track of where the cursor is currently and the current file names
+	// when we refresh, go looking for a matching name
+	// move the cursor to there.
+	selectedFile := gui.getSelectedFile()
+	prevSelectedLineIdx := gui.State.Panels.Files.SelectedLineIdx
+
+	// get files to stage
+	files := gui.GitCommand.GetStatusFiles(commands.GetStatusFileOptions{})
+	gui.State.Files = gui.GitCommand.MergeStatusFiles(gui.State.Files, files, selectedFile)
+
+	if err := gui.fileWatcher.addFilesToFileWatcher(files); err != nil {
+		return err
+	}
+
+	// let's try to find our file again and move the cursor to that
+	if selectedFile != nil {
+		for idx, f := range gui.State.Files {
+			selectedFileHasMoved := f.Matches(selectedFile) && idx != prevSelectedLineIdx
+			if selectedFileHasMoved {
+				gui.State.Panels.Files.SelectedLineIdx = idx
+				break
+			}
+		}
+	}
+
+	gui.refreshSelectedLine(gui.State.Panels.Files, len(gui.State.Files))
+	return nil
+}
+
+func (gui *Gui) handlePullFiles(g *gocui.Gui, v *gocui.View) error {
+	if gui.popupPanelFocused() {
+		return nil
+	}
+
+	currentBranch := gui.currentBranch()
+	if currentBranch == nil {
+		// need to wait for branches to refresh
+		return nil
+	}
+
+	// if we have no upstream branch we need to set that first
+	if currentBranch.Pullables == "?" {
+		// see if we have this branch in our config with an upstream
+		conf, err := gui.GitCommand.Repo.Config()
+		if err != nil {
+			return gui.surfaceError(err)
+		}
+		for branchName, branch := range conf.Branches {
+			if branchName == currentBranch.Name {
+				return gui.pullFiles(PullFilesOptions{RemoteName: branch.Remote, BranchName: branch.Name})
+			}
+		}
+
+		return gui.prompt(gui.Tr.SLocalize("EnterUpstream"), "origin/"+currentBranch.Name, func(upstream string) error {
+			if err := gui.GitCommand.SetUpstreamBranch(upstream); err != nil {
+				errorMessage := err.Error()
+				if strings.Contains(errorMessage, "does not exist") {
+					errorMessage = fmt.Sprintf("upstream branch %s not found.\nIf you expect it to exist, you should fetch (with 'f').\nOtherwise, you should push (with 'shift+P')", upstream)
+				}
+				return gui.createErrorPanel(errorMessage)
+			}
+			return gui.pullFiles(PullFilesOptions{})
+		})
+	}
+
+	return gui.pullFiles(PullFilesOptions{})
+}
+
+type PullFilesOptions struct {
+	RemoteName string
+	BranchName string
+}
+
+func (gui *Gui) pullFiles(opts PullFilesOptions) error {
+	if err := gui.createLoaderPanel(gui.g.CurrentView(), gui.Tr.SLocalize("PullWait")); err != nil {
+		return err
+	}
+
+	mode := gui.Config.GetUserConfig().GetString("git.pull.mode")
+
+	go gui.pullWithMode(mode, opts)
+
+	return nil
+}
+
+func (gui *Gui) pullWithMode(mode string, opts PullFilesOptions) error {
+	gui.State.FetchMutex.Lock()
+	defer gui.State.FetchMutex.Unlock()
+
+	err := gui.GitCommand.Fetch(
+		commands.FetchOptions{
+			PromptUserForCredential: gui.promptUserForCredential,
+			RemoteName:              opts.RemoteName,
+			BranchName:              opts.BranchName,
+		},
+	)
+	gui.handleCredentialsPopup(err)
+	if err != nil {
+		return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+	}
+
+	switch mode {
+	case "rebase":
+		err := gui.GitCommand.RebaseBranch("FETCH_HEAD")
+		return gui.handleGenericMergeCommandResult(err)
+	case "merge":
+		err := gui.GitCommand.Merge("FETCH_HEAD", commands.MergeOpts{})
+		return gui.handleGenericMergeCommandResult(err)
+	case "ff-only":
+		err := gui.GitCommand.Merge("FETCH_HEAD", commands.MergeOpts{FastForwardOnly: true})
+		return gui.handleGenericMergeCommandResult(err)
+	default:
+		return gui.createErrorPanel(fmt.Sprintf("git pull mode '%s' unrecognised", mode))
+	}
+}
+
+func (gui *Gui) pushWithForceFlag(v *gocui.View, force bool, upstream string, args string) error {
+	if err := gui.createLoaderPanel(v, gui.Tr.SLocalize("PushWait")); err != nil {
+		return err
+	}
+	go func() {
+		branchName := gui.getCheckedOutBranch().Name
+		err := gui.GitCommand.Push(branchName, force, upstream, args, gui.promptUserForCredential)
+		if err != nil && !force && strings.Contains(err.Error(), "Updates were rejected") {
+			forcePushDisabled := gui.Config.GetUserConfig().GetBool("git.disableForcePushing")
+			if forcePushDisabled {
+				gui.createErrorPanel(gui.Tr.SLocalize("UpdatesRejectedAndForcePushDisabled"))
+				return
+			}
+			gui.ask(askOpts{
+				title:  gui.Tr.SLocalize("ForcePush"),
+				prompt: gui.Tr.SLocalize("ForcePushPrompt"),
+				handleConfirm: func() error {
+					return gui.pushWithForceFlag(v, true, upstream, args)
+				},
+			})
+			return
+		}
+		gui.handleCredentialsPopup(err)
+		_ = gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+	}()
+	return nil
+}
+
+func (gui *Gui) pushFiles(g *gocui.Gui, v *gocui.View) error {
+	if gui.popupPanelFocused() {
+		return nil
+	}
+
+	// if we have pullables we'll ask if the user wants to force push
+	currentBranch := gui.currentBranch()
+
+	if currentBranch.Pullables == "?" {
+		// see if we have this branch in our config with an upstream
+		conf, err := gui.GitCommand.Repo.Config()
+		if err != nil {
+			return gui.surfaceError(err)
+		}
+		for branchName, branch := range conf.Branches {
+			if branchName == currentBranch.Name {
+				return gui.pushWithForceFlag(v, false, "", fmt.Sprintf("%s %s", branch.Remote, branchName))
+			}
+		}
+
+		if gui.GitCommand.PushToCurrent {
+			return gui.pushWithForceFlag(v, false, "", "--set-upstream")
+		} else {
+			return gui.prompt(gui.Tr.SLocalize("EnterUpstream"), "origin "+currentBranch.Name, func(response string) error {
+				return gui.pushWithForceFlag(v, false, response, "")
+			})
+		}
+	} else if currentBranch.Pullables == "0" {
+		return gui.pushWithForceFlag(v, false, "", "")
+	}
+
+	forcePushDisabled := gui.Config.GetUserConfig().GetBool("git.disableForcePushing")
+	if forcePushDisabled {
+		return gui.createErrorPanel(gui.Tr.SLocalize("ForcePushDisabled"))
+	}
+
+	return gui.ask(askOpts{
+		title:  gui.Tr.SLocalize("ForcePush"),
+		prompt: gui.Tr.SLocalize("ForcePushPrompt"),
+		handleConfirm: func() error {
+			return gui.pushWithForceFlag(v, true, "", "")
+		},
+	})
+}
+
+func (gui *Gui) handleSwitchToMerge() error {
+	file := gui.getSelectedFile()
+	if file == nil {
+		return nil
+	}
+
+	if !file.HasInlineMergeConflicts {
+		return gui.createErrorPanel(gui.Tr.SLocalize("FileNoMergeCons"))
+	}
+
+	return gui.switchContext(gui.Contexts.Merging.Context)
+}
+
+func (gui *Gui) openFile(filename string) error {
+	if err := gui.OSCommand.OpenFile(filename); err != nil {
+		return gui.surfaceError(err)
+	}
+	return nil
+}
+
+func (gui *Gui) anyFilesWithMergeConflicts() bool {
+	for _, file := range gui.State.Files {
+		if file.HasMergeConflicts {
+			return true
+		}
+	}
+	return false
+}
+
+func (gui *Gui) handleCustomCommand(g *gocui.Gui, v *gocui.View) error {
+	return gui.prompt(gui.Tr.SLocalize("CustomCommand"), "", func(command string) error {
+		gui.SubProcess = gui.OSCommand.RunCustomCommand(command)
+		return gui.Errors.ErrSubProcess
+	})
+}
+
+func (gui *Gui) handleCreateStashMenu(g *gocui.Gui, v *gocui.View) error {
+	menuItems := []*menuItem{
+		{
+			displayString: gui.Tr.SLocalize("stashAllChanges"),
+			onPress: func() error {
+				return gui.handleStashSave(gui.GitCommand.StashSave)
+			},
+		},
+		{
+			displayString: gui.Tr.SLocalize("stashStagedChanges"),
+			onPress: func() error {
+				return gui.handleStashSave(gui.GitCommand.StashSaveStagedChanges)
+			},
+		},
+	}
+
+	return gui.createMenu(gui.Tr.SLocalize("stashOptions"), menuItems, createMenuOptions{showCancel: true})
+}
+
+func (gui *Gui) handleStashChanges(g *gocui.Gui, v *gocui.View) error {
+	return gui.handleStashSave(gui.GitCommand.StashSave)
+}
+
+func (gui *Gui) handleCreateResetToUpstreamMenu(g *gocui.Gui, v *gocui.View) error {
+	return gui.createResetMenu("@{upstream}")
+}

pkg/gui/filtering.go

@@ -0,0 +1,21 @@
+package gui
+
+func (gui *Gui) validateNotInFilterMode() (bool, error) {
+	if gui.State.Modes.Filtering.Active() {
+		err := gui.ask(askOpts{
+			title:  gui.Tr.SLocalize("MustExitFilterModeTitle"),
+			prompt: gui.Tr.SLocalize("MustExitFilterModePrompt"),
+			handleConfirm: func() error {
+				return gui.exitFilterMode()
+			},
+		})
+
+		return false, err
+	}
+	return true, nil
+}
+
+func (gui *Gui) exitFilterMode() error {
+	gui.State.Modes.Filtering.Path = ""
+	return gui.Errors.ErrRestart
+}

pkg/gui/filtering_menu_panel.go

@@ -0,0 +1,62 @@
+package gui
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/jesseduffield/gocui"
+)
+
+func (gui *Gui) handleCreateFilteringMenuPanel(g *gocui.Gui, v *gocui.View) error {
+	if gui.popupPanelFocused() {
+		return nil
+	}
+
+	fileName := ""
+	switch v.Name() {
+	case "files":
+		file := gui.getSelectedFile()
+		if file != nil {
+			fileName = file.Name
+		}
+	case "commitFiles":
+		file := gui.getSelectedCommitFile()
+		if file != nil {
+			fileName = file.Name
+		}
+	}
+
+	menuItems := []*menuItem{}
+
+	if fileName != "" {
+		menuItems = append(menuItems, &menuItem{
+			displayString: fmt.Sprintf("%s '%s'", gui.Tr.SLocalize("filterBy"), fileName),
+			onPress: func() error {
+				gui.State.Modes.Filtering.Path = fileName
+				return gui.Errors.ErrRestart
+			},
+		})
+	}
+
+	menuItems = append(menuItems, &menuItem{
+		displayString: gui.Tr.SLocalize("filterPathOption"),
+		onPress: func() error {
+			return gui.prompt(gui.Tr.SLocalize("enterFileName"), "", func(response string) error {
+				gui.State.Modes.Filtering.Path = strings.TrimSpace(response)
+				return gui.Errors.ErrRestart
+			})
+		},
+	})
+
+	if gui.State.Modes.Filtering.Active() {
+		menuItems = append(menuItems, &menuItem{
+			displayString: gui.Tr.SLocalize("exitFilterMode"),
+			onPress: func() error {
+				gui.State.Modes.Filtering.Path = ""
+				return gui.Errors.ErrRestart
+			},
+		})
+	}
+
+	return gui.createMenu(gui.Tr.SLocalize("FilteringMenuTitle"), menuItems, createMenuOptions{showCancel: true})
+}

pkg/gui/git_flow.go

@@ -0,0 +1,89 @@
+package gui
+
+import (
+	"fmt"
+	"regexp"
+	"strings"
+
+	"github.com/jesseduffield/gocui"
+)
+
+func (gui *Gui) gitFlowFinishBranch(gitFlowConfig string, branchName string) error {
+	// need to find out what kind of branch this is
+	prefix := strings.SplitAfterN(branchName, "/", 2)[0]
+	suffix := strings.Replace(branchName, prefix, "", 1)
+
+	branchType := ""
+	for _, line := range strings.Split(strings.TrimSpace(gitFlowConfig), "\n") {
+		if strings.HasPrefix(line, "gitflow.prefix.") && strings.HasSuffix(line, prefix) {
+			// now I just need to how do you say
+			regex := regexp.MustCompile("gitflow.prefix.([^ ]*) .*")
+			matches := regex.FindAllStringSubmatch(line, 1)
+
+			if len(matches) > 0 && len(matches[0]) > 1 {
+				branchType = matches[0][1]
+				break
+			}
+		}
+	}
+
+	if branchType == "" {
+		return gui.createErrorPanel(gui.Tr.SLocalize("NotAGitFlowBranch"))
+	}
+
+	subProcess := gui.OSCommand.PrepareSubProcess("git", "flow", branchType, "finish", suffix)
+	gui.SubProcess = subProcess
+	return gui.Errors.ErrSubProcess
+}
+
+func (gui *Gui) handleCreateGitFlowMenu(g *gocui.Gui, v *gocui.View) error {
+	branch := gui.getSelectedBranch()
+	if branch == nil {
+		return nil
+	}
+
+	// get config
+	gitFlowConfig, err := gui.OSCommand.RunCommandWithOutput("git config --local --get-regexp gitflow")
+	if err != nil {
+		return gui.createErrorPanel("You need to install git-flow and enable it in this repo to use git-flow features")
+	}
+
+	startHandler := func(branchType string) func() error {
+		return func() error {
+			title := gui.Tr.TemplateLocalize("NewBranchNamePrompt", map[string]interface{}{"branchType": branchType})
+			return gui.prompt(title, "", func(name string) error {
+				subProcess := gui.OSCommand.PrepareSubProcess("git", "flow", branchType, "start", name)
+				gui.SubProcess = subProcess
+				return gui.Errors.ErrSubProcess
+			})
+		}
+	}
+
+	menuItems := []*menuItem{
+		{
+			// not localising here because it's one to one with the actual git flow commands
+			displayString: fmt.Sprintf("finish branch '%s'", branch.Name),
+			onPress: func() error {
+				return gui.gitFlowFinishBranch(gitFlowConfig, branch.Name)
+			},
+		},
+		{
+			displayString: "start feature",
+			onPress:       startHandler("feature"),
+		},
+		{
+			displayString: "start hotfix",
+			onPress:       startHandler("hotfix"),
+		},
+		{
+			displayString: "start bugfix",
+			onPress:       startHandler("bugfix"),
+		},
+		{
+			displayString: "start release",
+			onPress:       startHandler("release"),
+		},
+	}
+
+	return gui.createMenu("git flow", menuItems, createMenuOptions{})
+}

pkg/gui/global_handlers.go

@@ -0,0 +1,195 @@
+package gui
+
+import (
+	"math"
+	"strings"
+
+	"github.com/jesseduffield/gocui"
+	"github.com/jesseduffield/lazygit/pkg/commands"
+	"github.com/jesseduffield/lazygit/pkg/utils"
+)
+
+// these views need to be re-rendered when the screen mode changes. The commits view,
+// for example, will show authorship information in half and full screen mode.
+func (gui *Gui) rerenderViewsWithScreenModeDependentContent() error {
+	for _, viewName := range []string{"branches", "commits"} {
+		if err := gui.rerenderView(viewName); err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (gui *Gui) nextScreenMode(g *gocui.Gui, v *gocui.View) error {
+	gui.State.ScreenMode = utils.NextIntInCycle([]int{SCREEN_NORMAL, SCREEN_HALF, SCREEN_FULL}, gui.State.ScreenMode)
+
+	return gui.rerenderViewsWithScreenModeDependentContent()
+}
+
+func (gui *Gui) prevScreenMode(g *gocui.Gui, v *gocui.View) error {
+	gui.State.ScreenMode = utils.PrevIntInCycle([]int{SCREEN_NORMAL, SCREEN_HALF, SCREEN_FULL}, gui.State.ScreenMode)
+
+	return gui.rerenderViewsWithScreenModeDependentContent()
+}
+
+func (gui *Gui) scrollUpView(viewName string) error {
+	mainView, err := gui.g.View(viewName)
+	if err != nil {
+		return nil
+	}
+	ox, oy := mainView.Origin()
+	newOy := int(math.Max(0, float64(oy-gui.Config.GetUserConfig().GetInt("gui.scrollHeight"))))
+	return mainView.SetOrigin(ox, newOy)
+}
+
+func (gui *Gui) scrollDownView(viewName string) error {
+	mainView, err := gui.g.View(viewName)
+	if err != nil {
+		return nil
+	}
+	ox, oy := mainView.Origin()
+	y := oy
+	if !gui.Config.GetUserConfig().GetBool("gui.scrollPastBottom") {
+		_, sy := mainView.Size()
+		y += sy
+	}
+	scrollHeight := gui.Config.GetUserConfig().GetInt("gui.scrollHeight")
+	if y < mainView.LinesHeight() {
+		if err := mainView.SetOrigin(ox, oy+scrollHeight); err != nil {
+			return err
+		}
+	}
+	if manager, ok := gui.viewBufferManagerMap[viewName]; ok {
+		manager.ReadLines(scrollHeight)
+	}
+	return nil
+}
+
+func (gui *Gui) scrollUpMain(g *gocui.Gui, v *gocui.View) error {
+	if gui.canScrollMergePanel() {
+		gui.State.Panels.Merging.UserScrolling = true
+	}
+
+	return gui.scrollUpView("main")
+}
+
+func (gui *Gui) scrollDownMain(g *gocui.Gui, v *gocui.View) error {
+	if gui.canScrollMergePanel() {
+		gui.State.Panels.Merging.UserScrolling = true
+	}
+
+	return gui.scrollDownView("main")
+}
+
+func (gui *Gui) scrollUpSecondary(g *gocui.Gui, v *gocui.View) error {
+	return gui.scrollUpView("secondary")
+}
+
+func (gui *Gui) scrollDownSecondary(g *gocui.Gui, v *gocui.View) error {
+	return gui.scrollDownView("secondary")
+}
+
+func (gui *Gui) scrollUpConfirmationPanel(g *gocui.Gui, v *gocui.View) error {
+	if v.Editable {
+		return nil
+	}
+	return gui.scrollUpView("confirmation")
+}
+
+func (gui *Gui) scrollDownConfirmationPanel(g *gocui.Gui, v *gocui.View) error {
+	if v.Editable {
+		return nil
+	}
+	return gui.scrollDownView("confirmation")
+}
+
+func (gui *Gui) handleRefresh(g *gocui.Gui, v *gocui.View) error {
+	return gui.refreshSidePanels(refreshOptions{mode: ASYNC})
+}
+
+func (gui *Gui) handleMouseDownMain(g *gocui.Gui, v *gocui.View) error {
+	if gui.popupPanelFocused() {
+		return nil
+	}
+
+	switch g.CurrentView().Name() {
+	case "files":
+		// set filename, set primary/secondary selected, set line number, then switch context
+		// I'll need to know it was changed though.
+		// Could I pass something along to the context change?
+		return gui.enterFile(false, v.SelectedLineIdx())
+	case "commitFiles":
+		return gui.enterCommitFile(v.SelectedLineIdx())
+	}
+
+	return nil
+}
+
+func (gui *Gui) handleMouseDownSecondary(g *gocui.Gui, v *gocui.View) error {
+	if gui.popupPanelFocused() {
+		return nil
+	}
+
+	switch g.CurrentView().Name() {
+	case "files":
+		return gui.enterFile(true, v.SelectedLineIdx())
+	}
+
+	return nil
+}
+
+func (gui *Gui) handleInfoClick(g *gocui.Gui, v *gocui.View) error {
+	if !gui.g.Mouse {
+		return nil
+	}
+
+	cx, _ := v.Cursor()
+	width, _ := v.Size()
+
+	for _, mode := range gui.modeStatuses() {
+		if mode.isActive() {
+			if width-cx > len(gui.Tr.SLocalize("(reset)")) {
+				return nil
+			}
+			return mode.reset()
+		}
+	}
+
+	// if we're not in an active mode we show the donate button
+	if cx <= len(gui.Tr.SLocalize("Donate"))+len(INFO_SECTION_PADDING) {
+		return gui.OSCommand.OpenLink("https://github.com/sponsors/jesseduffield")
+	}
+	return nil
+}
+
+func (gui *Gui) fetch(canPromptForCredentials bool) (err error) {
+	gui.State.FetchMutex.Lock()
+	defer gui.State.FetchMutex.Unlock()
+
+	fetchOpts := commands.FetchOptions{}
+	if canPromptForCredentials {
+		fetchOpts.PromptUserForCredential = gui.promptUserForCredential
+	}
+
+	err = gui.GitCommand.Fetch(fetchOpts)
+
+	if canPromptForCredentials && err != nil && strings.Contains(err.Error(), "exit status 128") {
+		gui.createErrorPanel(gui.Tr.SLocalize("PassUnameWrong"))
+	}
+
+	gui.refreshSidePanels(refreshOptions{scope: []int{BRANCHES, COMMITS, REMOTES, TAGS}, mode: ASYNC})
+
+	return err
+}
+
+func (gui *Gui) handleCopySelectedSideContextItemToClipboard() error {
+	// important to note that this assumes we've selected an item in a side context
+	itemId := gui.getSideContextSelectedItemId()
+
+	if itemId == "" {
+		return nil
+	}
+
+	return gui.OSCommand.CopyToClipboard(itemId)
+}

pkg/gui/gui.go

@@ -0,0 +1,614 @@
+package gui
+
+import (
+	"fmt"
+	"io/ioutil"
+	"os"
+	"runtime"
+	"sync"
+
+	// "io"
+	// "io/ioutil"
+
+	"os/exec"
+	"strings"
+	"time"
+
+	"github.com/go-errors/errors"
+
+	// "strings"
+
+	"github.com/fatih/color"
+	"github.com/golang-collections/collections/stack"
+	"github.com/jesseduffield/gocui"
+	"github.com/jesseduffield/lazygit/pkg/commands"
+	"github.com/jesseduffield/lazygit/pkg/commands/patch"
+	"github.com/jesseduffield/lazygit/pkg/config"
+	"github.com/jesseduffield/lazygit/pkg/i18n"
+	"github.com/jesseduffield/lazygit/pkg/tasks"
+	"github.com/jesseduffield/lazygit/pkg/theme"
+	"github.com/jesseduffield/lazygit/pkg/updates"
+	"github.com/jesseduffield/lazygit/pkg/utils"
+	"github.com/mattn/go-runewidth"
+	"github.com/sirupsen/logrus"
+)
+
+const (
+	SCREEN_NORMAL int = iota
+	SCREEN_HALF
+	SCREEN_FULL
+)
+
+const StartupPopupVersion = 1
+
+// OverlappingEdges determines if panel edges overlap
+var OverlappingEdges = false
+
+// SentinelErrors are the errors that have special meaning and need to be checked
+// by calling functions. The less of these, the better
+type SentinelErrors struct {
+	ErrSubProcess error
+	ErrNoFiles    error
+	ErrSwitchRepo error
+	ErrRestart    error
+}
+
+// GenerateSentinelErrors makes the sentinel errors for the gui. We're defining it here
+// because we can't do package-scoped errors with localization, and also because
+// it seems like package-scoped variables are bad in general
+// https://dave.cheney.net/2017/06/11/go-without-package-scoped-variables
+// In the future it would be good to implement some of the recommendations of
+// that article. For now, if we don't need an error to be a sentinel, we will just
+// define it inline. This has implications for error messages that pop up everywhere
+// in that we'll be duplicating the default values. We may need to look at
+// having a default localisation bundle defined, and just using keys-only when
+// localising things in the code.
+func (gui *Gui) GenerateSentinelErrors() {
+	gui.Errors = SentinelErrors{
+		ErrSubProcess: errors.New(gui.Tr.SLocalize("RunningSubprocess")),
+		ErrNoFiles:    errors.New(gui.Tr.SLocalize("NoChangedFiles")),
+		ErrSwitchRepo: errors.New("switching repo"),
+		ErrRestart:    errors.New("restarting"),
+	}
+}
+
+func (gui *Gui) sentinelErrorsArr() []error {
+	return []error{
+		gui.Errors.ErrSubProcess,
+		gui.Errors.ErrNoFiles,
+		gui.Errors.ErrSwitchRepo,
+		gui.Errors.ErrRestart,
+	}
+}
+
+// Teml is short for template used to make the required map[string]interface{} shorter when using gui.Tr.SLocalize and gui.Tr.TemplateLocalize
+type Teml i18n.Teml
+
+// Gui wraps the gocui Gui object which handles rendering and events
+type Gui struct {
+	g                    *gocui.Gui
+	Log                  *logrus.Entry
+	GitCommand           *commands.GitCommand
+	OSCommand            *commands.OSCommand
+	SubProcess           *exec.Cmd
+	State                *guiState
+	Config               config.AppConfigurer
+	Tr                   *i18n.Localizer
+	Errors               SentinelErrors
+	Updater              *updates.Updater
+	statusManager        *statusManager
+	credentials          credentials
+	waitForIntro         sync.WaitGroup
+	fileWatcher          *fileWatcher
+	viewBufferManagerMap map[string]*tasks.ViewBufferManager
+	stopChan             chan struct{}
+
+	// when lazygit is opened outside a git directory we want to open to the most
+	// recent repo with the recent repos popup showing
+	showRecentRepos   bool
+	Contexts          ContextTree
+	ViewTabContextMap map[string][]tabContext
+}
+
+type listPanelState struct {
+	SelectedLineIdx int
+}
+
+func (h *listPanelState) SetSelectedLineIdx(value int) {
+	h.SelectedLineIdx = value
+}
+
+func (h *listPanelState) GetSelectedLineIdx() int {
+	return h.SelectedLineIdx
+}
+
+type IListPanelState interface {
+	SetSelectedLineIdx(int)
+	GetSelectedLineIdx() int
+}
+
+// for now the staging panel state, unlike the other panel states, is going to be
+// non-mutative, so that we don't accidentally end up
+// with mismatches of data. We might change this in the future
+type lineByLinePanelState struct {
+	SelectedLineIdx  int
+	FirstLineIdx     int
+	LastLineIdx      int
+	Diff             string
+	PatchParser      *patch.PatchParser
+	SelectMode       int  // one of LINE, HUNK, or RANGE
+	SecondaryFocused bool // this is for if we show the left or right panel
+}
+
+type mergingPanelState struct {
+	ConflictIndex int
+	ConflictTop   bool
+	Conflicts     []commands.Conflict
+	EditHistory   *stack.Stack
+
+	// UserScrolling tells us if the user has started scrolling through the file themselves
+	// in which case we won't auto-scroll to a conflict.
+	UserScrolling bool
+}
+
+type filePanelState struct {
+	listPanelState
+}
+
+// TODO: consider splitting this out into the window and the branches view
+type branchPanelState struct {
+	listPanelState
+}
+
+type remotePanelState struct {
+	listPanelState
+}
+
+type remoteBranchesState struct {
+	listPanelState
+}
+
+type tagsPanelState struct {
+	listPanelState
+}
+
+type commitPanelState struct {
+	listPanelState
+
+	LimitCommits bool
+}
+
+type reflogCommitPanelState struct {
+	listPanelState
+}
+
+type subCommitPanelState struct {
+	listPanelState
+
+	// e.g. name of branch whose commits we're looking at
+	refName string
+}
+
+type stashPanelState struct {
+	listPanelState
+}
+
+type menuPanelState struct {
+	listPanelState
+	OnPress func() error
+}
+
+type commitFilesPanelState struct {
+	listPanelState
+
+	// this is the SHA of the commit or the stash index of the stash.
+	// Not sure if ref is actually the right word here
+	refName   string
+	canRebase bool
+}
+
+type panelStates struct {
+	Files          *filePanelState
+	Branches       *branchPanelState
+	Remotes        *remotePanelState
+	RemoteBranches *remoteBranchesState
+	Tags           *tagsPanelState
+	Commits        *commitPanelState
+	ReflogCommits  *reflogCommitPanelState
+	SubCommits     *subCommitPanelState
+	Stash          *stashPanelState
+	Menu           *menuPanelState
+	LineByLine     *lineByLinePanelState
+	Merging        *mergingPanelState
+	CommitFiles    *commitFilesPanelState
+}
+
+type searchingState struct {
+	view         *gocui.View
+	isSearching  bool
+	searchString string
+}
+
+// startup stages so we don't need to load everything at once
+const (
+	INITIAL = iota
+	COMPLETE
+)
+
+// if ref is blank we're not diffing anything
+type Diffing struct {
+	Ref     string
+	Reverse bool
+}
+
+func (m *Diffing) Active() bool {
+	return m.Ref != ""
+}
+
+type Filtering struct {
+	Path string // the filename that gets passed to git log
+}
+
+func (m *Filtering) Active() bool {
+	return m.Path != ""
+}
+
+type CherryPicking struct {
+	CherryPickedCommits []*commands.Commit
+
+	// we only allow cherry picking from one context at a time, so you can't copy a commit from the local commits context and then also copy a commit in the reflog context
+	ContextKey string
+}
+
+func (m *CherryPicking) Active() bool {
+	return len(m.CherryPickedCommits) > 0
+}
+
+type Modes struct {
+	Filtering     Filtering
+	CherryPicking CherryPicking
+	Diffing       Diffing
+}
+
+type guiState struct {
+	Files        []*commands.File
+	Branches     []*commands.Branch
+	Commits      []*commands.Commit
+	StashEntries []*commands.StashEntry
+	CommitFiles  []*commands.CommitFile
+	// FilteredReflogCommits are the ones that appear in the reflog panel.
+	// when in filtering mode we only include the ones that match the given path
+	FilteredReflogCommits []*commands.Commit
+	// ReflogCommits are the ones used by the branches panel to obtain recency values
+	// if we're not in filtering mode, CommitFiles and FilteredReflogCommits will be
+	// one and the same
+	ReflogCommits         []*commands.Commit
+	SubCommits            []*commands.Commit
+	Remotes               []*commands.Remote
+	RemoteBranches        []*commands.RemoteBranch
+	Tags                  []*commands.Tag
+	MenuItems             []*menuItem
+	Updating              bool
+	Panels                *panelStates
+	MainContext           string // used to keep the main and secondary views' contexts in sync
+	SplitMainPanel        bool
+	RetainOriginalDir     bool
+	IsRefreshingFiles     bool
+	RefreshingFilesMutex  sync.Mutex
+	RefreshingStatusMutex sync.Mutex
+	FetchMutex            sync.Mutex
+	BranchCommitsMutex    sync.Mutex
+	Searching             searchingState
+	ScreenMode            int
+	SideView              *gocui.View
+	Ptmx                  *os.File
+	PrevMainWidth         int
+	PrevMainHeight        int
+	OldInformation        string
+	StartupStage          int // one of INITIAL and COMPLETE. Allows us to not load everything at once
+
+	Modes Modes
+
+	ContextStack   []Context
+	ViewContextMap map[string]Context
+
+	// WindowViewNameMap is a mapping of windows to the current view of that window.
+	// Some views move between windows for example the commitFiles view and when cycling through
+	// side windows we need to know which view to give focus to for a given window
+	WindowViewNameMap map[string]string
+}
+
+func (gui *Gui) resetState() {
+	// we carry over the filter path and diff state
+	prevFiltering := Filtering{
+		Path: "",
+	}
+	prevDiff := Diffing{}
+	prevCherryPicking := CherryPicking{
+		CherryPickedCommits: make([]*commands.Commit, 0),
+		ContextKey:          "",
+	}
+	if gui.State != nil {
+		prevFiltering = gui.State.Modes.Filtering
+		prevDiff = gui.State.Modes.Diffing
+		prevCherryPicking = gui.State.Modes.CherryPicking
+	}
+
+	modes := Modes{
+		Filtering:     prevFiltering,
+		CherryPicking: prevCherryPicking,
+		Diffing:       prevDiff,
+	}
+
+	gui.State = &guiState{
+		Files:                 make([]*commands.File, 0),
+		Commits:               make([]*commands.Commit, 0),
+		FilteredReflogCommits: make([]*commands.Commit, 0),
+		ReflogCommits:         make([]*commands.Commit, 0),
+		StashEntries:          make([]*commands.StashEntry, 0),
+		Panels: &panelStates{
+			// TODO: work out why some of these are -1 and some are 0. Last time I checked there was a good reason but I'm less certain now
+			Files:          &filePanelState{listPanelState{SelectedLineIdx: -1}},
+			Branches:       &branchPanelState{listPanelState{SelectedLineIdx: 0}},
+			Remotes:        &remotePanelState{listPanelState{SelectedLineIdx: 0}},
+			RemoteBranches: &remoteBranchesState{listPanelState{SelectedLineIdx: -1}},
+			Tags:           &tagsPanelState{listPanelState{SelectedLineIdx: -1}},
+			Commits:        &commitPanelState{listPanelState: listPanelState{SelectedLineIdx: -1}, LimitCommits: true},
+			ReflogCommits:  &reflogCommitPanelState{listPanelState{SelectedLineIdx: 0}},
+			SubCommits:     &subCommitPanelState{listPanelState: listPanelState{SelectedLineIdx: 0}, refName: ""},
+			CommitFiles:    &commitFilesPanelState{listPanelState: listPanelState{SelectedLineIdx: -1}, refName: ""},
+			Stash:          &stashPanelState{listPanelState{SelectedLineIdx: -1}},
+			Menu:           &menuPanelState{listPanelState: listPanelState{SelectedLineIdx: 0}, OnPress: nil},
+			Merging: &mergingPanelState{
+				ConflictIndex: 0,
+				ConflictTop:   true,
+				Conflicts:     []commands.Conflict{},
+				EditHistory:   stack.New(),
+			},
+		},
+		SideView:       nil,
+		Ptmx:           nil,
+		Modes:          modes,
+		ViewContextMap: gui.initialViewContextMap(),
+	}
+}
+
+// for now the split view will always be on
+// NewGui builds a new gui handler
+func NewGui(log *logrus.Entry, gitCommand *commands.GitCommand, oSCommand *commands.OSCommand, tr *i18n.Localizer, config config.AppConfigurer, updater *updates.Updater, filterPath string, showRecentRepos bool) (*Gui, error) {
+	gui := &Gui{
+		Log:                  log,
+		GitCommand:           gitCommand,
+		OSCommand:            oSCommand,
+		Config:               config,
+		Tr:                   tr,
+		Updater:              updater,
+		statusManager:        &statusManager{},
+		viewBufferManagerMap: map[string]*tasks.ViewBufferManager{},
+		showRecentRepos:      showRecentRepos,
+	}
+
+	gui.resetState()
+	gui.State.Modes.Filtering.Path = filterPath
+	gui.Contexts = gui.contextTree()
+	gui.ViewTabContextMap = gui.viewTabContextMap()
+
+	gui.watchFilesForChanges()
+
+	gui.GenerateSentinelErrors()
+
+	return gui, nil
+}
+
+// Run setup the gui with keybindings and start the mainloop
+func (gui *Gui) Run() error {
+	gui.resetState()
+
+	g, err := gocui.NewGui(gocui.Output256, OverlappingEdges)
+	if err != nil {
+		return err
+	}
+	defer g.Close()
+
+	if gui.State.Modes.Filtering.Active() {
+		gui.State.ScreenMode = SCREEN_HALF
+	} else {
+		gui.State.ScreenMode = SCREEN_NORMAL
+	}
+
+	g.OnSearchEscape = gui.onSearchEscape
+	g.SearchEscapeKey = gui.getKey("universal.return")
+	g.NextSearchMatchKey = gui.getKey("universal.nextMatch")
+	g.PrevSearchMatchKey = gui.getKey("universal.prevMatch")
+
+	g.ASCII = runtime.GOOS == "windows" && runewidth.IsEastAsian()
+
+	if gui.Config.GetUserConfig().GetBool("gui.mouseEvents") {
+		g.Mouse = true
+	}
+
+	gui.g = g // TODO: always use gui.g rather than passing g around everywhere
+
+	if err := gui.setColorScheme(); err != nil {
+		return err
+	}
+
+	popupTasks := []func(chan struct{}) error{}
+	configPopupVersion := gui.Config.GetUserConfig().GetInt("StartupPopupVersion")
+	// -1 means we've disabled these popups
+	if configPopupVersion != -1 && configPopupVersion < StartupPopupVersion {
+		popupTasks = append(popupTasks, gui.showIntroPopupMessage)
+	}
+	gui.showInitialPopups(popupTasks)
+
+	gui.waitForIntro.Add(1)
+	if gui.Config.GetUserConfig().GetBool("git.autoFetch") {
+		go gui.startBackgroundFetch()
+	}
+
+	gui.goEvery(time.Second*10, gui.stopChan, gui.refreshFiles)
+
+	g.SetManager(gocui.ManagerFunc(gui.layout), gocui.ManagerFunc(gui.getFocusLayout()))
+
+	gui.Log.Warn("starting main loop")
+
+	err = g.MainLoop()
+	return err
+}
+
+// RunWithSubprocesses loops, instantiating a new gocui.Gui with each iteration
+// if the error returned from a run is a ErrSubProcess, it runs the subprocess
+// otherwise it handles the error, possibly by quitting the application
+func (gui *Gui) RunWithSubprocesses() error {
+	for {
+		gui.stopChan = make(chan struct{})
+		if err := gui.Run(); err != nil {
+			for _, manager := range gui.viewBufferManagerMap {
+				manager.Close()
+			}
+			gui.viewBufferManagerMap = map[string]*tasks.ViewBufferManager{}
+
+			if !gui.fileWatcher.Disabled {
+				gui.fileWatcher.Watcher.Close()
+			}
+
+			close(gui.stopChan)
+
+			switch err {
+			case gocui.ErrQuit:
+				if !gui.State.RetainOriginalDir {
+					if err := gui.recordCurrentDirectory(); err != nil {
+						return err
+					}
+				}
+
+				return nil
+			case gui.Errors.ErrSwitchRepo, gui.Errors.ErrRestart:
+				continue
+			case gui.Errors.ErrSubProcess:
+
+				if err := gui.runCommand(); err != nil {
+					return err
+				}
+			default:
+				return err
+			}
+		}
+	}
+}
+
+func (gui *Gui) runCommand() error {
+	gui.SubProcess.Stdout = os.Stdout
+	gui.SubProcess.Stderr = os.Stdout
+	gui.SubProcess.Stdin = os.Stdin
+
+	fmt.Fprintf(os.Stdout, "\n%s\n\n", utils.ColoredString("+ "+strings.Join(gui.SubProcess.Args, " "), color.FgBlue))
+
+	if err := gui.SubProcess.Run(); err != nil {
+		// not handling the error explicitly because usually we're going to see it
+		// in the output anyway
+		gui.Log.Error(err)
+	}
+
+	gui.SubProcess.Stdout = ioutil.Discard
+	gui.SubProcess.Stderr = ioutil.Discard
+	gui.SubProcess.Stdin = nil
+	gui.SubProcess = nil
+
+	fmt.Fprintf(os.Stdout, "\n%s", utils.ColoredString(gui.Tr.SLocalize("pressEnterToReturn"), color.FgGreen))
+	fmt.Scanln() // wait for enter press
+
+	return nil
+}
+
+func (gui *Gui) loadNewRepo() error {
+	gui.Updater.CheckForNewUpdate(gui.onBackgroundUpdateCheckFinish, false)
+	if err := gui.updateRecentRepoList(); err != nil {
+		return err
+	}
+	gui.waitForIntro.Done()
+
+	if err := gui.refreshSidePanels(refreshOptions{mode: ASYNC}); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (gui *Gui) showInitialPopups(tasks []func(chan struct{}) error) {
+	gui.waitForIntro.Add(len(tasks))
+	done := make(chan struct{})
+
+	go func() {
+		for _, task := range tasks {
+			go func() {
+				if err := task(done); err != nil {
+					_ = gui.surfaceError(err)
+				}
+			}()
+
+			<-done
+			gui.waitForIntro.Done()
+		}
+	}()
+}
+
+func (gui *Gui) showIntroPopupMessage(done chan struct{}) error {
+	onConfirm := func() error {
+		done <- struct{}{}
+		return gui.Config.WriteToUserConfig("startupPopupVersion", StartupPopupVersion)
+	}
+
+	return gui.ask(askOpts{
+		title:         "",
+		prompt:        gui.Tr.SLocalize("IntroPopupMessage"),
+		handleConfirm: onConfirm,
+		handleClose:   onConfirm,
+	})
+}
+
+func (gui *Gui) goEvery(interval time.Duration, stop chan struct{}, function func() error) {
+	go func() {
+		ticker := time.NewTicker(interval)
+		defer ticker.Stop()
+		for {
+			select {
+			case <-ticker.C:
+				_ = function()
+			case <-stop:
+				return
+			}
+		}
+	}()
+}
+
+func (gui *Gui) startBackgroundFetch() {
+	gui.waitForIntro.Wait()
+	isNew := gui.Config.GetIsNewRepo()
+	if !isNew {
+		time.After(60 * time.Second)
+	}
+	err := gui.fetch(false)
+	if err != nil && strings.Contains(err.Error(), "exit status 128") && isNew {
+		_ = gui.ask(askOpts{
+			title:  gui.Tr.SLocalize("NoAutomaticGitFetchTitle"),
+			prompt: gui.Tr.SLocalize("NoAutomaticGitFetchBody"),
+		})
+	} else {
+		gui.goEvery(time.Second*60, gui.stopChan, func() error {
+			err := gui.fetch(false)
+			return err
+		})
+	}
+}
+
+// setColorScheme sets the color scheme for the app based on the user config
+func (gui *Gui) setColorScheme() error {
+	userConfig := gui.Config.GetUserConfig()
+	theme.UpdateTheme(userConfig)
+
+	gui.g.FgColor = theme.InactiveBorderColor
+	gui.g.SelFgColor = theme.ActiveBorderColor
+
+	return nil
+}