main.yml

# This is a basic workflow to help you get started with Actions

name: CI

# Controls when the workflow will run
on:
  # Triggers the workflow on push or pull request events but only for the master branch
  push:
    branches:
      - master
      - production
  pull_request:
    branches:
      - master
      - production

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

env:
 GHCR_SLUG: ghcr.io/muesli-hd/muesli

# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
  # This workflow contains a single job called "build"
  build:
    # The type of runner that the job will run on
    runs-on: ubuntu-latest
    outputs:
      image_version: ${{ steps.meta.outputs.version }}

    # Steps represent a sequence of tasks that will be executed as part of the job
    steps:
      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
      - uses: actions/checkout@v2

      - name: Docker meta
        id: meta
        uses: docker/metadata-action@v3
        with:
          images: ${{ env.GHCR_SLUG }}
          labels: |
            org.opencontainers.image.title=MÜSLI
            org.opencontainers.image.description=Mathematisches Übungsgruppen und Scheinlisten Interface
            org.opencontainers.image.vendor=Fakultät für Mathematik und Informatik, Universität Heidelberg

      - name: Set up Docker Buildx
        id: buildx
        uses: docker/setup-buildx-action@master

      - name: Cache Docker layers
        uses: actions/cache@v2
        with:
          path: /tmp/.buildx-cache
          key: ${{ runner.os }}-single-buildx-${{ github.sha }}
          restore-keys: |
            ${{ runner.os }}-single-buildx
      
      - name: Log in to registry
        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin

      - name: Build MÜSLI image
        id: docker-build
        uses: docker/build-push-action@v2
        with:
          context: .
          builder: ${{ steps.buildx.outputs.name }}
          file: docker/Dockerfile
          push: ${{ github.event_name != 'pull_request' }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=local,src=/tmp/.buildx-cache
          cache-to: type=local,dest=/tmp/.buildx-cache-new

        # Temp fix
        # https://github.com/docker/build-push-action/issues/252
        # https://github.com/moby/buildkit/issues/1896
      - name: Move cache
        run: |
          rm -rf /tmp/.buildx-cache
          mv /tmp/.buildx-cache-new /tmp/.buildx-cache
      
  test:
    runs-on: ubuntu-latest
    needs: [build]
    steps:
      - uses: actions/checkout@v2

      - name: Run tests
        id: tests
        run: docker/run-tests.sh --github-actions-image "${{ env.GHCR_SLUG }}:${{ needs.build.outputs.image_version }}"

      - uses: codecov/codecov-action@v2
        with:
          files: ./docker/.coverage.xml
          flags: unittests
          name: MÜSLI

  deploy:
    runs-on: ubuntu-latest
    needs: [build, test]
    steps:
      - name: Check if deployment necessary
        id: needs-deploy
        run: |
          if [[ ${{ github.ref }} == refs/heads/production ]]; then
            echo "::set-output name=deploy::true"
          else
            echo "::set-output name=deploy::false"
          fi

      - name: Deploy to production (if necessary)
        if: ${{ steps.needs-deploy.outputs.deploy == 'true' }}
        uses: distributhor/workflow-webhook@v2
        env:
          webhook_url: ${{ secrets.WEBHOOK_URL }}
          webhook_secret: ${{ secrets.WEBHOOK_SECRET }}