danger/.github/workflows/danger-comment.yml at master · ruby-grape/danger · GitHub

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name: Danger Comment
on:
  workflow_run:
    workflows: [Danger]
    types: [completed]
  workflow_call:

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

jobs:
  comment:
    runs-on: ubuntu-latest
    if: |
      (github.event_name == 'workflow_run' && github.event.workflow_run.event == 'pull_request')
      || github.event_name == 'workflow_call'
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 1
      - name: Download Danger Report (workflow_run)
        if: github.event_name == 'workflow_run'
        uses: actions/download-artifact@v4
        continue-on-error: true
        with:
          name: danger-report
          run-id: ${{ github.event.workflow_run.id }}
          repository: ${{ github.event.workflow_run.repository.full_name }}
          github-token: ${{ secrets.GITHUB_TOKEN }}
      - name: Download Danger Report (reusable call)
        if: github.event_name == 'workflow_call'
        uses: actions/download-artifact@v4
        continue-on-error: true
        with:
          name: danger-report
      - name: Post or Update PR Comment
        uses: actions/github-script@v7
        with:
          script: |
            const fs = require('fs');

            const hasItems = (arr) => Array.isArray(arr) && arr.length > 0;

            let report;
            try {
              report = JSON.parse(fs.readFileSync('danger_report.json', 'utf8'));
            } catch (e) {
              console.log('No danger report found, skipping comment');
              return;
            }

            if (!report.pr_number) {
              console.log('No PR number found in report, skipping comment');
              return;
            }

            let body = '## Danger Report\n\n';

            if (hasItems(report.errors)) {
              body += '### ❌ Errors\n';
              report.errors.forEach(e => body += `- ${e}\n`);
              body += '\n';
            }

            if (hasItems(report.warnings)) {
              body += '### ⚠️ Warnings\n';
              report.warnings.forEach(w => body += `- ${w}\n`);
              body += '\n';
            }

            if (hasItems(report.messages)) {
              body += '### ℹ️ Messages\n';
              report.messages.forEach(m => body += `- ${m}\n`);
              body += '\n';
            }

            if (hasItems(report.markdowns)) {
              report.markdowns.forEach(md => body += `${md}\n\n`);
            }

            if (!hasItems(report.errors) &&
                !hasItems(report.warnings) &&
                !hasItems(report.messages) &&
                !hasItems(report.markdowns)) {
              body += '✅ All checks passed!';
            }

            const { data: comments } = await github.rest.issues.listComments({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: report.pr_number
            });

            const botComment = comments.find(c =>
              c.user.login === 'github-actions[bot]' &&
              c.body.includes('## Danger Report')
            );

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

            // Fail if there are errors
            if (hasItems(report.errors)) {
              core.setFailed('Danger found errors');
            }