codegraph-impact.yml

name: Codegraph Impact Analysis
on: [pull_request]

permissions:
  contents: read

concurrency:
  group: codegraph-impact-${{ github.event.pull_request.number }}
  cancel-in-progress: true

jobs:
  impact:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 0
      - uses: actions/setup-node@v6
        with:
          node-version: '22'
      - name: Install dependencies
        shell: bash
        run: |
          for attempt in 1 2 3; do
            npm install && break
            if [ "$attempt" -lt 3 ]; then
              echo "::warning::npm install attempt $attempt failed, retrying in 15s..."
              sleep 15
            else
              echo "::error::npm install failed after 3 attempts"
              exit 1
            fi
          done
      - uses: actions/cache@v5
        with:
          path: .codegraph/
          key: codegraph-${{ hashFiles('src/**', 'package.json') }}
          restore-keys: codegraph-
      - name: Build graph
        run: node dist/cli.js build || (rm -rf .codegraph && node dist/cli.js build --no-incremental)
      - name: Run impact analysis
        run: node dist/cli.js diff-impact origin/${{ github.base_ref }} --json -T > impact.json
      - name: Save PR number
        run: echo "${{ github.event.pull_request.number }}" > pr-number.txt
      - name: Upload impact artifact
        uses: actions/upload-artifact@v4
        with:
          name: codegraph-impact
          path: |
            impact.json
            pr-number.txt
          retention-days: 1