tar/.github/workflows/GnuComment.yml

name: GnuComment

# spell-checker:ignore zizmor backquote

on:
  workflow_run:
    workflows: ["GnuTests"]
    types:
      - completed

permissions: {}

jobs:
  post-comment:
    permissions:
      actions: read  # to list workflow runs artifacts
      pull-requests: write  # to comment on pr

    runs-on: ubuntu-latest
    if: >
      github.event.workflow_run.event == 'pull_request'
    steps:
      - name: 'Download artifact'
        uses: actions/github-script@v9
        with:
          script: |
            const artifacts = await github.rest.actions.listWorkflowRunArtifacts({
               owner: context.repo.owner,
               repo: context.repo.repo,
               run_id: ${{ github.event.workflow_run.id }},
            });
            const matchArtifact = artifacts.data.artifacts.find(a => a.name === "comment");
            if (!matchArtifact) {
              return core.info("No 'comment' artifact found");
            }
            const download = await github.rest.actions.downloadArtifact({
               owner: context.repo.owner,
               repo: context.repo.repo,
               artifact_id: matchArtifact.id,
               archive_format: 'zip',
            });
            const fs = require('fs');
            fs.writeFileSync('${{ github.workspace }}/comment.zip', Buffer.from(download.data));

      - name: 'Unzip artifact'
        run: unzip comment.zip

      - name: 'Comment on PR'
        uses: actions/github-script@v9
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const fs = require('fs');
            if (!fs.existsSync('./NR') || !fs.existsSync('./result.txt')) {
               return core.info("No NR or result.txt found, skipping comment");
            }
            const issue_number = Number(fs.readFileSync('./NR', 'utf8').trim());
            const content = fs.readFileSync('./result.txt', 'utf8').trim();
            if (content.length > 0) {
              await github.rest.issues.createComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: issue_number,
                body: `### GNU Testsuite Comparison\n\n\`\`\`\n${content}\n\`\`\``
              });
            }