add support for [GitHubWorkflowStatus] (Actions) using BaseSvgScraping service implementation (#3898)

* feat: add BaseSvgScraping service impl for GH Actions

* chore: fix GH Actions service test name

* feat: add branch support to GH Actions/Workflows

* chore: fix schema for GH actions

* refactor: update route path per PR discussion

services/github/github-workflow-status.service.js

@@ -0,0 +1,88 @@
+'use strict'
+
+const Joi = require('@hapi/joi')
+const { isBuildStatus, renderBuildStatusBadge } = require('../build-status')
+const { documentation } = require('./github-helpers')
+const { BaseSvgScrapingService } = require('..')
+
+const schema = Joi.object({
+  message: Joi.alternatives()
+    .try(isBuildStatus, Joi.equal('no status'))
+    .required(),
+}).required()
+
+const keywords = ['action', 'actions']
+
+module.exports = class GithubWorkflowStatus extends BaseSvgScrapingService {
+  static get category() {
+    return 'build'
+  }
+
+  static get route() {
+    return {
+      base: 'github/workflow/status',
+      pattern: ':user/:repo/:workflow/:branch*',
+    }
+  }
+
+  static get examples() {
+    return [
+      {
+        title: 'GitHub Workflow Status',
+        pattern: ':user/:repo/:workflow',
+        namedParams: {
+          user: 'actions',
+          repo: 'toolkit',
+          workflow: 'Main workflow',
+        },
+        staticPreview: renderBuildStatusBadge({
+          status: 'passing',
+        }),
+        documentation,
+        keywords,
+      },
+      {
+        title: 'GitHub Workflow Status (branch)',
+        pattern: ':user/:repo/:workflow/:branch',
+        namedParams: {
+          user: 'actions',
+          repo: 'toolkit',
+          workflow: 'Main workflow',
+          branch: 'master',
+        },
+        staticPreview: renderBuildStatusBadge({
+          status: 'passing',
+        }),
+        documentation,
+        keywords,
+      },
+    ]
+  }
+
+  static get defaultBadgeData() {
+    return {
+      label: 'build',
+    }
+  }
+
+  async fetch({ user, repo, workflow, branch }) {
+    const { message: status } = await this._requestSvg({
+      schema,
+      url: `https://github.com/${user}/${repo}/workflows/${encodeURIComponent(
+        workflow
+      )}/badge.svg`,
+      options: { qs: { branch } },
+      valueMatcher: />([^<>]+)<\/tspan><\/text><\/g><path/,
+      errorMessages: {
+        404: 'repo, branch, or workflow not found',
+      },
+    })
+
+    return { status }
+  }
+
+  async handle({ user, repo, workflow, branch }) {
+    const { status } = await this.fetch({ user, repo, workflow, branch })
+    return renderBuildStatusBadge({ status })
+  }
+}

services/github/github-workflow-status.tester.js

@@ -0,0 +1,37 @@
+'use strict'
+
+const Joi = require('@hapi/joi')
+const { isBuildStatus } = require('../build-status')
+const t = (module.exports = require('../tester').createServiceTester())
+
+const isWorkflowStatus = Joi.alternatives()
+  .try(isBuildStatus, Joi.equal('no status'))
+  .required()
+
+t.create('nonexistent repo')
+  .get('/badges/shields-fakeness/fake.json')
+  .expectBadge({
+    label: 'build',
+    message: 'repo, branch, or workflow not found',
+  })
+
+t.create('nonexistent workflow')
+  .get('/actions/toolkit/not-a-real-workflow.json')
+  .expectBadge({
+    label: 'build',
+    message: 'repo, branch, or workflow not found',
+  })
+
+t.create('valid workflow')
+  .get('/actions/toolkit/Main%20workflow.json')
+  .expectBadge({
+    label: 'build',
+    message: isWorkflowStatus,
+  })
+
+t.create('valid workflow (branch)')
+  .get('/actions/toolkit/Main%20workflow/master.json')
+  .expectBadge({
+    label: 'build',
+    message: isWorkflowStatus,
+  })