name: "Check generated JavaScript"

on: [pull_request]

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

    steps:
    - uses: actions/checkout@v1
    - name: Check generated JavaScript
      run: |
        # Sanity check that repo is clean to start with
        if [ ! -z "$(git status --porcelain)" ]; then
          # If we get a fail here then this workflow needs attention...
          >&2 echo "Failed: Repo should be clean before testing!"
          exit 1
        fi
        # Generate the JavaScript files
        npm run-script build
        # Check that repo is still clean
        if [ ! -z "$(git status --porcelain)" ]; then
          # If we get a fail here then the PR needs attention
          >&2 echo "Failed: JavaScript files are not up to date. Run 'npm run-script build' to update"
          exit 1
        fi
        echo "Success: JavaScript files are up to date"