name: Test NPM on Windows

on:
  push:
    branches:
      - master
      - '*.*'
  pull_request:

jobs:
  # Verifies that installing NPM dependencies and building WordPress works on Windows.
  #
  # Performs the following steps:
  # - Checks out the repository.
  # - Logs debug information about the runner container.
  # - Installs NodeJS 12 (todo: install the version of NPM specified in the `.nvmrc` file to support older branches)
  # - Sets up caching for NPM.
  # _ Installs NPM dependencies.
  # - Builds WordPress to run from the `build` directory.
  test-npm:
    name: Tests NPM on Windows
    runs-on: windows-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v2

      - name: Log debug information
        run: |
          npm --version
          node --version
          curl --version
          git --version
          svn --version

      - name: Install NodeJS
        uses: actions/setup-node@v1
        with:
          node-version: 12

      - name: Get NPM cache directory
        id: npm-cache
        run: echo "::set-output name=dir::$(npm config get cache)"

      - name: Cache NodeJS modules
        uses: actions/cache@v2
        env:
          cache-name: cache-node-modules
        with:
          path: ${{ steps.npm-cache.outputs.dir }}
          key: ${{ runner.os }}-npm-${{ hashFiles('**/package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-npm-

      - name: Install Dependencies
        run: npm ci

      - name: Build WordPress
        run: npm run build