build.yaml

name: Build
on: [ push, pull_request ]

jobs:
  workflow-setup:
    runs-on: ubuntu-latest
    outputs:
      CACHE_KEY_IMAGE: ${{ steps.cache.outputs.CACHE_KEY_IMAGE }}
    steps:
      - name: Git checkout
        uses: actions/checkout@v2
      - name: Set outputs
        id: cache
        run: |
          echo "::set-output name=CACHE_KEY_IMAGE::${{ hashFiles('.github/workflows/Dockerfile') }}"

  build-image:
    needs: workflow-setup
    runs-on: ubuntu-latest
    env:
      DOCKER_BUILDKIT: 1
      CACHE_KEY_IMAGE: ${{ needs.workflow-setup.outputs.CACHE_KEY_IMAGE }}
    steps:
      - name: Git checkout
        uses: actions/checkout@v2
      - name: Try load from cache.
        id: cache-image
        uses: actions/cache@v2
        with:
          path: ${GITHUB_WORKSPACE}/cache
          key: ${{ env.CACHE_KEY_IMAGE}}
      - name: If NOT found in cache, build and push image.
        if: steps.cache-image.outputs.cache-hit != 'true'
        run: |
          echo ${{ secrets.CR_PAT }} | docker login ghcr.io --username ${{ secrets.CR_USER }} --password-stdin
          docker build -f .github/workflows/Dockerfile --no-cache -t ${GITHUB_REPOSITORY}/uwg-build:${{ env.CACHE_KEY_IMAGE }} .
          docker tag ${GITHUB_REPOSITORY}/uwg-build:${{ env.CACHE_KEY_IMAGE }} ghcr.io/${GITHUB_REPOSITORY}/uwg-build:latest
          docker push ghcr.io/${GITHUB_REPOSITORY}/uwg-build:latest
          mkdir -p ${GITHUB_WORKSPACE}/cache
          touch ${GITHUB_WORKSPACE}/cache/${{ env.CACHE_KEY_IMAGE }}

  test:
    name: Test using Ursa
    needs: build-image
    runs-on: ubuntu-20.04
    container:
      image: ghcr.io/${{ github.repository }}/uwg-build
    strategy:
      matrix:
        go-version: [1.14, 1.15]
    steps:
      - name: Set up Go ${{ matrix.go-version }}
        uses: actions/setup-go@v2
        with:
          go-version: ${{ matrix.go-version }}
        id: go

      - name: Check out code into the Go module directory
        uses: actions/checkout@v2

      - name: Test using Ursa ${{ matrix.ursa-version }}
        run: |
          make test