name: Check dist/

on:
  push:
    branches:
      - main
    paths-ignore:
      - "**.md"
  pull_request:
    paths-ignore:
      - "**.md"
  workflow_dispatch:

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

    steps:
      - uses: actions/checkout@v3

      - uses: actions/setup-node@v3
        with:
          node-version: 16

      - name: Node dependencies cache
        uses: actions/cache@v3
        with:
          path: "**/node_modules"
          key: yarn-${{ hashFiles('**/yarn.lock') }}

      - name: Install dependencies
        run: yarn install --frozen-lockfile

      - name: Rebuild the dist/ directory
        run: yarn release

      - 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

      # If index.js was different than expected, upload the expected version as an artifact
      - uses: actions/upload-artifact@v3
        if: ${{ failure() && steps.diff.conclusion == 'failure' }}
        with:
          name: dist
          path: dist/