Comment on forked pull request #302
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| name: Comment on forked pull request | |
| on: | |
| workflow_run: | |
| # This job only runs from the main branch. You won't see any change until it's merged to main. | |
| # To test this job, you can temporarily change it to `pull_request` and hardcode the run_id and pr_number | |
| workflows: ['Perf'] | |
| types: [completed] | |
| jobs: | |
| pr_comment: | |
| if: github.event.workflow_run.event == 'pull_request' && github.event.workflow_run.conclusion == 'success' && github.event.workflow_run.head_repository.full_name != github.event.workflow_run.repository.full_name | |
| runs-on: ubuntu-latest | |
| steps: | |
| - name: get artifact url | |
| uses: actions/github-script@v6 | |
| id: url | |
| with: | |
| result-encoding: string | |
| script: | | |
| const ARTIFACT_NAME = 'reports'; | |
| const {owner, repo} = context.repo; | |
| const run_id = ${{github.event.workflow_run.id}}; | |
| const artifacts = await github.paginate( | |
| github.rest.actions.listWorkflowRunArtifacts, {owner, repo, run_id}); | |
| const art = artifacts.find(e => e.name === ARTIFACT_NAME); | |
| if (!art) { | |
| return core.error(`No artifact '${ARTIFACT_NAME}' found`); | |
| } | |
| console.log(art); | |
| return art.archive_download_url; | |
| - name: download artifact | |
| env: | |
| GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}" | |
| run: | | |
| set -eu | |
| # A useful wrapper around CURL | |
| crl() { | |
| curl --silent --show-error --location --retry 1 "${@:2}" \ | |
| -H "Accept: application/vnd.github.antiope-preview+json, application/vnd.github.v3+json" \ | |
| "$1" | |
| } | |
| auth_crl() { | |
| crl "$1" -H "authorization: Bearer $GITHUB_TOKEN" "${@:2}" | |
| } | |
| auth_crl "${{ steps.url.outputs.result }}" > a.zip | |
| unzip a.zip | |
| cat DIFF.md | base64 > DIFF.md.base64 | |
| cat TABLE.md | base64 > TABLE.md.base64 | |
| - name: Read table | |
| id: perf | |
| uses: juliangruber/read-file-action@v1 | |
| with: | |
| path: ./TABLE.md.base64 | |
| - name: Read diff | |
| id: diff | |
| uses: juliangruber/read-file-action@v1 | |
| with: | |
| path: ./DIFF.md.base64 | |
| - name: Read PR number | |
| id: pr_num | |
| uses: juliangruber/read-file-action@v1 | |
| with: | |
| path: ./pr_num.txt | |
| - uses: actions/github-script@v6 | |
| with: | |
| # This snippet is public-domain, taken from | |
| # https://github.com/oprypin/nightly.link/blob/master/.github/workflows/pr-comment.yml | |
| script: | | |
| async function upsertComment(owner, repo, issue_number, purpose, body) { | |
| const {data: comments} = await github.rest.issues.listComments( | |
| {owner, repo, issue_number}); | |
| const marker = `<!-- bot: ${purpose} -->`; | |
| body = marker + "\n" + body; | |
| const existing = comments.filter((c) => c.body.includes(marker)); | |
| if (existing.length > 0) { | |
| const last = existing[existing.length - 1]; | |
| core.info(`Updating comment ${last.id}`); | |
| await github.rest.issues.updateComment({ | |
| owner, repo, | |
| body, | |
| comment_id: last.id, | |
| }); | |
| } else { | |
| core.info(`Creating a comment in issue / PR #${issue_number}`); | |
| await github.rest.issues.createComment({issue_number, body, owner, repo}); | |
| } | |
| } | |
| function base64ToUTF8(input) { | |
| const base64 = input.replace(/\r?\n|\r/g, ""); | |
| const text = atob(base64); | |
| const length = text.length; | |
| const bytes = new Uint8Array(length); | |
| for (let i = 0; i < length; i++) { | |
| bytes[i] = text.charCodeAt(i); | |
| } | |
| const decoder = new TextDecoder(); | |
| return decoder.decode(bytes); | |
| } | |
| const {owner, repo} = context.repo; | |
| const diff = base64ToUTF8(`${{ steps.diff.outputs.content }}`); | |
| const perf = base64ToUTF8(`${{ steps.perf.outputs.content }}`); | |
| const pr = ${{ steps.pr_num.outputs.content }}; | |
| await upsertComment(owner, repo, pr, "diff", diff); | |
| await upsertComment(owner, repo, pr, "perf", perf); | |