Draft release notes on tag #85
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| name: Draft release notes on tag | |
| on: | |
| create: | |
| workflow_dispatch: | |
| jobs: | |
| draft_release_notes: | |
| name: Draft release notes | |
| if: (github.event.ref_type == 'tag' && github.event.master_branch == 'master') || github.event_name == 'workflow_dispatch' | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Get milestone title | |
| id: milestoneTitle | |
| uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410 # 6.4.1 | |
| with: | |
| result-encoding: string | |
| script: | | |
| // Get the milestone title ("X.Y.Z") from tag name ("vX.Y.Z(-rc)") | |
| const match = '${{github.event.ref}}'.match(/v(\d+\.\d+\.\d+)(?:-rc\d+)?/i) | |
| if (!match) { | |
| core.setFailed('Failed to parse tag name into milestone name: ${{github.event.ref}}') | |
| return | |
| } | |
| const milestoneTitle = match[1] | |
| // Look for the milestone | |
| const milestone = (await github.paginate('GET /repos/{owner}/{repo}/milestones', { | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| state: 'all' | |
| })).find(m => m.title == milestoneTitle) | |
| if (!milestone) { | |
| core.setFailed(`Failed to find milestone: ${milestoneTitle}`) | |
| return | |
| } | |
| // Get pull requests of the milestone | |
| const pullRequests = (await github.paginate('/repos/{owner}/{repo}/issues', { | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| milestone: milestone.number, | |
| state: 'closed' | |
| })) | |
| .filter(i => i.pull_request && i.pull_request.merged_at) // Skip closed but not merged | |
| .filter(p => !p.labels.find(label => label.name == 'tag: no release notes')) // Skip excluded | |
| // Group PR by components and instrumentations | |
| var prByComponents = new Map() | |
| var prByInstrumentations = new Map() | |
| var otherPRs = new Array() | |
| for (let pullRequest of pullRequests) { | |
| var captured = false | |
| for (let label of pullRequest.labels) { | |
| const index = label.name.indexOf(':') | |
| if (index == -1) { | |
| core.notice('Unsupported label: ${label.name}') | |
| continue | |
| } | |
| const labelKey = label.name.substring(0, index) | |
| const labelValue = label.name.slice(index + 1) | |
| var map = null | |
| if (labelKey == 'comp') { | |
| map = prByComponents | |
| } else if (labelKey == 'inst') { | |
| map = prByInstrumentations | |
| } | |
| if (map) { | |
| var prs = map.get(label.description) | |
| if (!prs) { | |
| prs = new Array() | |
| map.set(label.description, prs) | |
| } | |
| prs.push(pullRequest) | |
| captured = true | |
| } | |
| } | |
| if (!captured) { | |
| otherPRs.push(pullRequest) | |
| } | |
| } | |
| // Sort components and instrumenations | |
| prByComponents = new Map([...prByComponents].sort()); | |
| const lastInstrumentation = 'All other instrumentations' | |
| prByInstrumentations = new Map([...prByInstrumentations].sort( | |
| (a, b) => { | |
| if (a[0] == lastInstrumentation) { | |
| return 1 | |
| } else if (b[0] == lastInstrumentation) { | |
| return -1 | |
| } | |
| return String(a[0]).localeCompare(b[0]) | |
| } | |
| )); | |
| // Generate changelog | |
| const decorators = { | |
| 'tag: breaking change': ':warning:', | |
| 'tag: experimental': ':test_tube:', | |
| 'tag: diagnostics': ':mag:', | |
| 'tag: performance': ':zap:', | |
| 'tag: security': ':closed_lock_with_key:', | |
| 'type: bug': ':bug:', | |
| 'type: documentation': ':book:', | |
| 'type: enhancement': ':sparkles:', | |
| 'type: feature request': ':bulb:', | |
| 'type: refactoring': ':broom:' | |
| } | |
| function decorate(pullRequest) { | |
| var line = '' | |
| var decorated = false; | |
| for (let label of pullRequest.labels) { | |
| if (decorators[label.name]) { | |
| line += decorators[label.name] | |
| decorated = true | |
| } | |
| } | |
| if (decorated) { | |
| line += ' ' | |
| } | |
| return line | |
| } | |
| function cleanUpTitle(title) { | |
| // Remove tags between brackets | |
| return title.replace(/\[[^\]]+\]/g, '') | |
| } | |
| function format(pullRequest) { | |
| var line = `${decorate(pullRequest)}${cleanUpTitle(pullRequest.title)} (#${pullRequest.number} - @${pullRequest.user.login}` | |
| // Add special thanks if community labeled | |
| if (pullRequest.labels.some(label => label.name == "tag: community")) { | |
| line += ` - thanks for the contribution!` | |
| } | |
| line += ')' | |
| return line; | |
| } | |
| var changelog = '' | |
| if ('${{github.event.ref}}'.match(/rc/i)) { | |
| changelog += ':warning: This is a RELEASE CANDIDATE and is NOT intended for use in production. Please contact Datadog support regarding any problems in this RC.\n' | |
| } | |
| if (prByComponents.size > 0) { | |
| changelog += '# Components\n\n'; | |
| for (let pair of prByComponents) { | |
| changelog += '## '+pair[0]+'\n\n' | |
| for (let pullRequest of pair[1]) { | |
| changelog += '* ' + format(pullRequest) + '\n' | |
| } | |
| changelog += '\n' | |
| } | |
| } | |
| if (prByInstrumentations.size > 0) { | |
| changelog += '# Instrumentations\n\n' | |
| for (let pair of prByInstrumentations) { | |
| changelog += '## '+pair[0]+'\n\n' | |
| for (let pullRequest of pair[1]) { | |
| changelog += '* ' + format(pullRequest) + '\n' | |
| } | |
| changelog += '\n' | |
| } | |
| } | |
| if (otherPRs.length > 0) { | |
| changelog += '# Other changes\n\n' | |
| for (let pullRequest of otherPRs) { | |
| changelog += '* ' + format(pullRequest) + '\n' | |
| } | |
| } | |
| // Create release with the draft changelog | |
| await github.rest.repos.createRelease({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| tag_name: '${{ github.event.ref }}', | |
| name: milestoneTitle, | |
| draft: true, | |
| body: changelog | |
| }) |