name: Build docker images

# 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 ]
  pull_request:
    branches: [ master ]

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

# set token permissions for job so we can push to ghcr.io
permissions:
  contents: read
  packages: write

# build components using a job matrix, so they can run in parallel
jobs:
  build:
    runs-on: ubuntu-20.04
    strategy:
      fail-fast: true  # cancel all in-progress jobs if any matrix job fails
      matrix:
        component:
          - downloader
          - restreamer
          - backfiller
          - thrimshim
          - cutter
          - sheetsync
          - nginx
          - postgres
          - segment_coverage
          - playlist_manager
    steps:
      - name: Check out repo
        uses: actions/checkout@v2

      - name: Generate image tag
        id: tag
        run: echo "::set-output name=sha8::$(git rev-parse --short HEAD)"

      - name: Log into ghcr.io
        uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Build ${{ matrix.component }}
        uses: docker/build-push-action@v2.7.0
        with:
          context: ./${{ matrix.component }}
          file: Dockerfile
          tags: ghcr.io/ekimekim/wubloader-${{ matrix.component }}:${{ steps.tag.outputs.sha8 }}
          push: true

      - name: Build ${{ matrix.component }} latest
        uses: docker/build-push-action@v2.7.0
        if: github.event_name != 'pull_request' && github.ref == 'refs/heads/master'
        with:
          context: ./${{ matrix.component }}
          file: Dockerfile
          tags: ghcr.io/ekimekim/wubloader-${{ matrix.component }}:latest
          push: true