zisk/.github/workflows/cycle-tracking-comment.yml at 6182c8be9f4ec6baf7ee9771dd0668324f7112ed · 0xPolygonHermez/zisk · GitHub

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name: "Cycle Tracking Comment"

on:
  workflow_run:
    workflows: ["Cycle Tracking"]
    types: [completed]

concurrency:
  group: "${{ github.workflow }}-${{ github.event.workflow_run.id }}"
  cancel-in-progress: true

permissions:
  contents: read
  actions: read
  issues: write
  pull-requests: write

jobs:
  comment:
    name: "Post / update PR comment"
    runs-on: ubuntu-latest
    # Only for benchmark runs that were triggered by a PR and produced a report.
    if: >-
      github.event.workflow_run.event == 'pull_request' &&
      github.event.workflow_run.conclusion == 'success'
    steps:
      - name: "Download report artifact"
        uses: actions/download-artifact@v4
        with:
          name: cycle-tracking-report
          run-id: ${{ github.event.workflow_run.id }}
          github-token: ${{ secrets.GITHUB_TOKEN }}
          path: report

      - name: "Post / update PR comment"
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');
            const run = context.payload.workflow_run;

            // Derive the target PR from the trusted workflow_run payload.
            let prNumber = run.pull_requests?.[0]?.number;
            if (!prNumber) {
              const headOwner = run.head_repository?.owner?.login ?? context.repo.owner;
              const { data: prs } = await github.rest.pulls.list({
                owner: context.repo.owner,
                repo: context.repo.repo,
                state: 'all',
                head: `${headOwner}:${run.head_branch}`,
              });
              prNumber = (prs.find((p) => p.head?.sha === run.head_sha) ?? prs[0])?.number;
            }
            if (!Number.isInteger(prNumber)) {
              core.setFailed(`Could not resolve a PR for workflow_run ${run.id} (head_sha ${run.head_sha})`);
              return;
            }

            const report = fs.readFileSync('report/report.md', 'utf8');
            const marker = '<!-- zisk-cycle-tracking -->';
            const body = `${marker}\n${report}`;

            const { data: comments } = await github.rest.issues.listComments({
              issue_number: prNumber,
              owner: context.repo.owner,
              repo: context.repo.repo,
            });
            const existing = comments.find(
              (c) => c.user.type === 'Bot' && c.body.includes(marker)
            );

            if (existing) {
              await github.rest.issues.updateComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                comment_id: existing.id,
                body,
              });
            } else {
              await github.rest.issues.createComment({
                issue_number: prNumber,
                owner: context.repo.owner,
                repo: context.repo.repo,
                body,
              });
            }