Affected pages #650
Workflow file for this run
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| name: Affected pages | |
| on: | |
| deployment_status: | |
| permissions: | |
| pull-requests: write | |
| deployments: read | |
| contents: read | |
| concurrency: | |
| group: affected-pages-${{ github.event.deployment.sha }} | |
| cancel-in-progress: true | |
| jobs: | |
| affected-pages: | |
| if: | | |
| github.event.deployment_status.state == 'success' && | |
| startsWith(github.event.deployment.environment, 'Preview') && | |
| contains(github.event.deployment_status.target_url, 'vercel.app') | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: Find PR for this deployment | |
| id: pr | |
| uses: actions/github-script@v8 | |
| env: | |
| DEPLOY_SHA: ${{ github.event.deployment.sha }} | |
| with: | |
| script: | | |
| const { data: prs } = await github.rest.repos.listPullRequestsAssociatedWithCommit({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| commit_sha: process.env.DEPLOY_SHA, | |
| }); | |
| const pr = prs.find((p) => p.state === "open"); | |
| if (!pr) { | |
| core.info("No open PR for this deployment; skipping."); | |
| return; | |
| } | |
| core.setOutput("number", pr.number); | |
| - name: Checkout repo at deploy SHA | |
| if: steps.pr.outputs.number | |
| uses: actions/checkout@v4 | |
| with: | |
| ref: ${{ github.event.deployment.sha }} | |
| - name: Collect changed MDX files | |
| id: changed | |
| if: steps.pr.outputs.number | |
| uses: actions/github-script@v8 | |
| env: | |
| PR_NUMBER: ${{ steps.pr.outputs.number }} | |
| with: | |
| script: | | |
| const pull_number = parseInt(process.env.PR_NUMBER, 10); | |
| const files = await github.paginate(github.rest.pulls.listFiles, { | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| pull_number, | |
| }); | |
| const matching = files | |
| .filter((f) => f.status !== "removed") | |
| .map((f) => f.filename) | |
| .filter( | |
| (n) => | |
| (n.startsWith("src/content/") || n.startsWith("src/partials/")) && | |
| n.endsWith(".mdx"), | |
| ); | |
| core.setOutput("any", matching.length > 0 ? "true" : "false"); | |
| core.setOutput("files", matching.join("\n")); | |
| - name: Compute affected page URLs | |
| if: steps.pr.outputs.number | |
| env: | |
| CHANGED_FILES: ${{ steps.changed.outputs.files }} | |
| PREVIEW_URL: ${{ github.event.deployment_status.target_url }} | |
| BYPASS_SECRET: ${{ secrets.VERCEL_AUTOMATION_BYPASS_SECRET }} | |
| run: node scripts/affected-pages.mjs | |
| - name: Update PR description | |
| if: steps.pr.outputs.number | |
| uses: actions/github-script@v8 | |
| env: | |
| BODY_PATH: pages-comment.md | |
| PR_NUMBER: ${{ steps.pr.outputs.number }} | |
| with: | |
| script: | | |
| const fs = require("fs"); | |
| // Match any "## Affected pages" section: from the heading up to (but | |
| // not including) the next `## ` heading or end of body. The `\r?` | |
| // tolerates GitHub's CRLF line endings in PR bodies, and the `g` | |
| // flag lets us strip duplicate sections left behind by earlier runs | |
| // that hit the line-ending bug. | |
| const sectionRe = /## Affected pages[ \t]*\r?\n[\s\S]*?(?=\r?\n## |$)/g; | |
| const pull_number = parseInt(process.env.PR_NUMBER, 10); | |
| const { data: pr } = await github.rest.pulls.get({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| pull_number, | |
| }); | |
| const original = pr.body || ""; | |
| const content = fs.readFileSync(process.env.BODY_PATH, "utf8").trim(); | |
| const block = `## Affected pages\n\n${content}\n`; | |
| // Strip every existing Affected pages section, then reinsert one | |
| // fresh copy in the canonical spot. This is idempotent and also | |
| // cleans up any duplicates accumulated by previous runs. | |
| const stripped = original | |
| .replace(sectionRe, "") | |
| .replace(/(\r?\n){3,}/g, "$1$1"); | |
| let next; | |
| const heading = "## Related Issues"; | |
| const idx = stripped.indexOf(heading); | |
| if (idx >= 0) { | |
| const before = stripped.slice(0, idx).trimEnd(); | |
| const after = stripped.slice(idx); | |
| next = `${before}\n\n${block}\n${after}`; | |
| } else { | |
| next = `${stripped.trim()}\n\n${block}`; | |
| } | |
| if (next !== original) { | |
| await github.rest.pulls.update({ | |
| owner: context.repo.owner, | |
| repo: context.repo.repo, | |
| pull_number, | |
| body: next, | |
| }); | |
| console.log("PR description updated."); | |
| } else { | |
| console.log("No change to PR description."); | |
| } |