name: Check if compiled action in dist/ matches the source files

on:
  workflow_call:

jobs:
  compare-dist:
    name: Check dist/
    runs-on: ubuntu-latest
    steps:
      - name: Checkout the action
        uses: actions/checkout@v3
      - name: Setup Node.js 16.x
        uses: actions/setup-node@v3
        with:
          node-version: 16
      - name: Install npm-cli-login
        run: npm install -g npm-cli-login
      - name: Login to GitHub npm registry
        run: |
          npm-cli-login -s @actions-rs -r https://npm.pkg.github.com \
            -u $ -p ${{ secrets.GITHUB_TOKEN }} -e test@example.com
      - name: Install dependencies
        run: npm ci
      - name: Rebuild the action
        run: npm run build
      - name: Compare the expected and actual dist/ directories
        run: |
          if [ "$(git diff dist/ | wc -l)" -gt "0" ]; then
            echo "Detected uncommitted changes after build."
            exit 1
          fi
        id: diff
      - name: Upload the expected version in case of failure
        uses: actions/upload-artifact@v3
        if: ${{ failure() && steps.diff.conclusion == 'failure' }}
        with:
          name: expected-dist
          path: dist/