cache-tests.yml

name: cache-unit-tests
on:
  push:
    branches:
      - master
    paths-ignore:
      - '**.md'
  pull_request:
    paths-ignore:
      - '**.md'

jobs:
  build:
    name: Build

    strategy:
      matrix:
        runs-on: [ubuntu-latest, windows-latest, macOS-latest]
      fail-fast: false

    runs-on: ${{ matrix.runs-on }}

    steps:
    - name: Checkout
      uses: actions/checkout@v2

    - name: Set Node.js 12.x
      uses: actions/setup-node@v1
      with:
        node-version: 12.x

    # In order to save & restore cache from a shell script, certain env variables need to be set that are only available in the
    # node context. This runs a local action that gets and sets the necessary env variables that are needed
    - name: Set env variables
      uses: ./packages/cache/__tests__/__fixtures__/

    # Need root node_modules because certain npm packages like jest are configured for the entire repository and it won't be possible
    # without these to just compile the cache package
    - name: Install root npm packages
      run: npm ci

    - name: Compile cache package
      run: |
        npm ci
        npm run tsc
      working-directory: packages/cache
    
    - name: Generate files in working directory
      shell: bash
      run: packages/cache/__tests__/create-cache-files.sh ${{ runner.os }} test-cache

    - name: Generate files outside working directory
      shell: bash
      run: packages/cache/__tests__/create-cache-files.sh ${{ runner.os }} ~/test-cache

    # We're using node -e to call the functions directly available in the @actions/cache package
    - name: Save cache using saveCache()
      run: |
        node -e "Promise.resolve(require('./packages/cache/lib/cache').saveCache(['test-cache','~/test-cache'],'test-${{ runner.os }}-${{ github.run_id }}'))"

    - name: Restore cache using restoreCache()
      run: |
        node -e "Promise.resolve(require('./packages/cache/lib/cache').restoreCache(['test-cache','~/test-cache'],'test-${{ runner.os }}-${{ github.run_id }}'))"

    - name: Verify cache 
      shell: bash
      run: |
        packages/cache/__tests__/verify-cache-files.sh ${{ runner.os }} test-cache
        packages/cache/__tests__/verify-cache-files.sh ${{ runner.os }} ~/test-cache