MeetSpot/.github/workflows/postmortem-check.yml at main · calderbuild/MeetSpot · GitHub

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name: Postmortem Check

on:
  pull_request:
    branches: [main, feature]
    paths:
      - 'app/**'
      - 'api/**'
      - 'tools/**'
      - 'public/**'
  push:
    branches: [main]
    paths:
      - 'app/**'
      - 'api/**'
      - 'tools/**'
      - 'public/**'

jobs:
  postmortem-check:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.11'

      - name: Install dependencies
        run: |
          pip install pyyaml

      - name: Check for postmortem matches
        id: check
        run: |
          # Determine base ref
          if [ "${{ github.event_name }}" = "pull_request" ]; then
            BASE_REF="${{ github.event.pull_request.base.sha }}"
          else
            BASE_REF="HEAD~1"
          fi

          # Check if postmortem directory exists
          if [ ! -d "postmortem" ]; then
            echo "No postmortem directory found. Skipping check."
            exit 0
          fi

          # Run check (warn mode, don't block)
          python tools/postmortem_check.py \
            --base "$BASE_REF" \
            --mode warn \
            --threshold 0.7 \
            --output text 2>&1 | tee postmortem_output.txt

          # Save output for PR comment
          echo "has_matches=false" >> $GITHUB_OUTPUT
          if grep -q "\[BLOCK\]\|\[WARN\]" postmortem_output.txt; then
            echo "has_matches=true" >> $GITHUB_OUTPUT
          fi
        continue-on-error: true

      - name: Comment on PR
        if: github.event_name == 'pull_request' && steps.check.outputs.has_matches == 'true'
        uses: actions/github-script@v8
        with:
          script: |
            const fs = require('fs');
            const output = fs.readFileSync('postmortem_output.txt', 'utf8');

            const body = `## Postmortem Alert

            This PR may touch code related to past incidents. Please review:

            \`\`\`
            ${output.substring(0, 3000)}
            \`\`\`

            Run locally with:
            \`\`\`bash
            python tools/postmortem_check.py --base ${{ github.event.pull_request.base.sha }}
            \`\`\`
            `;

            // Check if we already commented
            const { data: comments } = await github.rest.issues.listComments({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
            });

            const existingComment = comments.find(c =>
              c.user.login === 'github-actions[bot]' &&
              c.body.includes('Postmortem Alert')
            );

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