check-dist.yaml

# `dist/index.js` is a special file in Actions.
# When you reference an action with `uses:` in a workflow,
# `index.js` is the code that will run.
# For our project, we generate this file through a build process from other source files.
# We need to make sure the checked-in `index.js` actually matches what we expect it to be.
name: Check dist/

on:
  pull_request:
    paths:
      - 'add-release-notes/**/*'
      - 'cleanup-ghcr/**/*'
      - 'determine-environment/**/*'
      - 'delete-inactive-deployments/**/*'
      - 'package-has-version/**/*'
      - 'get-package-version/**/*'
      - 'git-tag-exists/**/*'
      - '.github/workflows/check-dist.yaml'
  workflow_dispatch:

jobs:
  check-dist:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        path:
          - 'add-release-notes'
          - 'cleanup-ghcr'
          - 'determine-environment'
          - 'delete-inactive-deployments'
          - 'package-has-version'
          - 'get-package-version'
          - 'git-tag-exists'

    steps:
      - uses: actions/checkout@v3

      - name: Set Node.js 16.x
        uses: actions/setup-node@v3
        with:
          node-version: 16.x
          cache: npm
          cache-dependency-path: package-lock.json

      - name: Install dependencies
        run: npm install --prefer-offline --frozen-lockfile

      - name: Rebuild the dist/ directory
        run: npm run all
        working-directory: ${{ matrix.path }}

      - name: Compare the expected and actual dist/ directories
        run: |
          if [ "$(git diff --ignore-space-at-eol dist/ | wc -l)" -gt "0" ]; then
            echo "Detected uncommitted changes after build.  See status below:"
            git diff
            exit 1
          fi
        id: diff
        working-directory: ${{ matrix.path }}

      # If index.js was different than expected, upload the expected version as an artifact
      - uses: actions/upload-artifact@v2
        if: ${{ failure() && steps.diff.conclusion == 'failure' }}
        with:
          name: ${{ matrix.path }}
          path: ${{ matrix.path }}/dist