Bug fixes
- Build lock is keyed on books/ so builds started from different
directories block each other (fixes two tests broken by 89b828efa3).
- ConfigManager resolves the repo root when binder runs from books/ or
binder/, so bib, newsletter, doctor and render paths are right.
- `build <word> --all` treats intro/scaling/agentic/physical as chapter
names (it built every volume), and Ctrl-C stops a --all loop.
- doctor checked chapter names that no longer exist and failed on the
generated _quarto.yml; info defaulted to a deleted books/contents.
- `headings apply --path <typo>` no longer rewrites the whole book;
`bib clean` stops on unreadable chapters instead of dropping entries.
- Discovery falls back to a line scan on invalid YAML instead of crashing.
- Volume III/IV were labeled Volume II in layout and release output.
Output
- Unexpected errors print the command, exception type, and raising
file:line (new cli/core/errors.py), with the traceback on stderr.
- Chapter-not-found suggests the closest names and the list command.
- Silent except blocks in bib lookups, info, headings, layout,
maintenance, preview and debug now say what went wrong.
Cleanup
- Shared qmd_files_under/display_path, file-rewrite loop, doctor result
helper, preview server, clean helpers, volume display names.
- Removed legacy import fallbacks, dead config attributes, legacy backup
restore logic, and unused imports.
Parallel and debug builds removed their worktrees only on normal exit or
Ctrl-C. SIGTERM (timeouts, agent harnesses) and SIGHUP (closed terminal)
killed the process before cleanup, and nothing ever swept the leftovers,
so detached worktrees piled up in $TMPDIR/binder-workspaces (28 GB today).
- run_jobs and the debug bisection now turn SIGTERM/SIGHUP into
KeyboardInterrupt, so their existing cleanup runs.
- run_jobs first removes runs whose binder process has exited (the pid is
in the run directory name) and prunes their worktree registrations.
- --keep-workspaces runs are marked and skipped by the automatic sweep.
- New `binder clean workspaces` removes leftovers on demand, kept runs
included.
Two builds in one worktree overwrite each other's generated _quarto.yml, index.qmd
and freeze files and fail with unrelated-looking errors. Hold an flock on
.binder-build.lock for the serial build path; the OS drops it when the holder dies,
so a killed build never leaves a stale lock. Separate worktrees do not contend.
build --parallel [N] (with --each-chapter and --keep-workspaces) runs one job per format, volume, and chapter, each in a disposable git worktree snapshotted from the working tree, and collects logs and output under books/_build/parallel/<run-id>/. debug uses the same runner: the chapter scan can run in parallel, and section bisection now truncates chapters inside a worktree instead of rewriting the checkout's files. Process-group handling, the render environment, and signal handling move into shared core modules.
The cleanup removes the backup-and-comment fast-build path, which no config used and whose edits never reached Quarto. --no-cover now edits the generated _quarto.yml, --print-marks uses the shared TeX header, --all builds every volume, and chapters from several volumes are rejected. The debugger no longer deletes a volume artifact when a chapter has none, and the legacy section bisection script is gone.
Vijay Janapa Reddi