Update CHANGELOG.md (#344) #20
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| name: Create Changelog Pull Request | |
| on: | |
| push: | |
| branches: ["main"] | |
| workflow_dispatch: | |
| jobs: | |
| update-changelog-pull-request: | |
| runs-on: ubuntu-latest | |
| env: | |
| CONFIG_PATH: .github/changelog-pr-config.json | |
| BRANCH_NAME: github-action-update-changelog | |
| AUTOMATED_PR_LABEL: "automated pr" | |
| permissions: | |
| contents: write | |
| pull-requests: write | |
| steps: | |
| - name: Checkout code | |
| uses: actions/checkout@v4 | |
| with: | |
| fetch-depth: 0 | |
| - name: Get latest dates in changelog | |
| run: | | |
| # Extract the latest and second latest dates from changelog | |
| DATES=$(grep '^## [0-9]\{4\}-[0-9]\{2\}-[0-9]\{2\}' CHANGELOG.md | head -n 2 | awk '{print $2}') | |
| LATEST_DATE=$(echo "$DATES" | sed -n '1p') | |
| SECOND_LATEST_DATE=$(echo "$DATES" | sed -n '2p') | |
| TODAY=$(date +%Y-%m-%d) | |
| echo "TODAY=$TODAY" >> $GITHUB_ENV | |
| if [ "$LATEST_DATE" == "$TODAY" ]; then | |
| echo "LATEST_DATE=$SECOND_LATEST_DATE" >> $GITHUB_ENV | |
| else | |
| echo "LATEST_DATE=$LATEST_DATE" >> $GITHUB_ENV | |
| fi | |
| - name: Get categorized pull requests | |
| id: get-categorized-prs | |
| uses: actions/github-script@v7 | |
| with: | |
| script: | | |
| const fs = require('fs').promises; | |
| const path = require('path'); | |
| const configPath = path.resolve(process.env.CONFIG_PATH); | |
| const fileContent = await fs.readFile(configPath, 'utf-8'); | |
| const changelogConfig = JSON.parse(fileContent); | |
| const categorizedPRs = changelogConfig.map((obj) => ({ ...obj, notes: [] })); | |
| const latestDateInChangelog = new Date(process.env.LATEST_DATE); | |
| latestDateInChangelog.setUTCHours(23,59,59,999); | |
| const { data: pulls } = await github.rest.pulls.list({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| state: "closed", | |
| sort: "updated", | |
| direction: "desc", | |
| per_page: 100, | |
| }); | |
| pulls.filter((pr) => | |
| pr.merged_at && new Date(pr.merged_at) > latestDateInChangelog | |
| ).forEach((pr) => { | |
| const prLabels = pr.labels.map((label) => label.name.toLowerCase()); | |
| const prNote = `- ${pr.title} [@${pr.user.login}](https://github.com/${pr.user.login}) ([#${pr.number}](${pr.html_url}))`; | |
| for (const { labels, notes } of categorizedPRs) { | |
| const prHasCategoryLabel = labels.some((label) => prLabels.includes(label)); | |
| const isUnlabelledCategory = labels.length === 0; | |
| const prShouldBeExcluded = prLabels.includes(process.env.AUTOMATED_PR_LABEL); | |
| if ((prHasCategoryLabel || isUnlabelledCategory) && !prShouldBeExcluded) { | |
| notes.push(prNote); | |
| break; | |
| } | |
| }; | |
| }); | |
| return categorizedPRs; | |
| - name: Update CHANGELOG.md | |
| uses: actions/github-script@v7 | |
| with: | |
| script: | | |
| const fs = require('fs').promises; | |
| const path = require('path'); | |
| const today = process.env.TODAY; | |
| const latestDateInChangelog = process.env.LATEST_DATE; | |
| const changelogPath = path.resolve('CHANGELOG.md'); | |
| const categorizedPRs = ${{ steps.get-categorized-prs.outputs.result }}; | |
| let newReleaseNotes = `\n## ${today}\n\n### Changed\n\n`; | |
| for (const { title, notes } of categorizedPRs) { | |
| if (notes.length > 0) { | |
| newReleaseNotes += `### ${title}\n\n${notes.join("\n")}\n\n`; | |
| } | |
| } | |
| const changelogContent = await fs.readFile(changelogPath, 'utf-8'); | |
| const changelogIncludesTodaysReleaseNotes = changelogContent.includes(`\n## ${today}`); | |
| // Replace todays release notes or insert release notes above previous release notes | |
| const regex = changelogIncludesTodaysReleaseNotes ? | |
| new RegExp(`\n## ${today}.*(?=## ${latestDateInChangelog})`, "gs") : | |
| new RegExp(`(?=## ${latestDateInChangelog})`, "gs"); | |
| const newChangelogContent = changelogContent.replace(regex, newReleaseNotes) | |
| await fs.writeFile(changelogPath, newChangelogContent); | |
| - name: Check if there are any changes | |
| id: verify-diff | |
| run: | | |
| git diff --quiet . || echo "changed=true" >> $GITHUB_OUTPUT | |
| - name: Commit and push changes to separate branch | |
| if: steps.verify-diff.outputs.changed == 'true' | |
| run: | | |
| git config --global user.name "github-actions[bot]" | |
| git config --global user.email "github-actions[bot]@users.noreply.github.com" | |
| git add CHANGELOG.md | |
| git commit -m "Update CHANGELOG.md" | |
| git checkout -b $BRANCH_NAME || git checkout $BRANCH_NAME | |
| git push origin $BRANCH_NAME --force | |
| - name: Create pull request if not exists | |
| if: steps.verify-diff.outputs.changed == 'true' | |
| env: | |
| GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} | |
| run: | | |
| PR_EXISTS=$(gh pr list --head "${BRANCH_NAME}" --json number --jq '.[].number') | |
| if [ -z "$PR_EXISTS" ]; then | |
| gh pr create --title "[Github Action] Update CHANGELOG.md" \ | |
| --body "This PR is auto-generated by a Github Action to update the CHANGELOG.md file." \ | |
| --head $BRANCH_NAME \ | |
| --base main \ | |
| --label "$AUTOMATED_PR_LABEL" | |
| fi |