name: Build FFmpeg

on: [push]

jobs:
  build_base:
    name: Build base image
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Build and push base
        uses: docker/build-push-action@v1
        with:
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
          registry: docker.pkg.github.com
          build_args: BUILDKIT_INLINE_CACHE=1
          repository: btbn/ffmpeg-build/base
          cache_froms: btbn/ffmpeg-build/base:latest
          tags: latest
          path: base
          always_pull: true
  build_target_bases:
    name: Build target base images
    needs: build_base
    runs-on: ubuntu-latest
    strategy:
      matrix:
        target: [win64]
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Build and push target base
        uses: docker/build-push-action@v1
        with:
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
          registry: docker.pkg.github.com
          build_args: BUILDKIT_INLINE_CACHE=1
          repository: btbn/ffmpeg-build/base-${{ matrix.target }}
          cache_froms: btbn/ffmpeg-build/base-${{ matrix.target }}:latest
          tags: latest
          path: base-${{ matrix.target }}
          always_pull: true
  build_targets:
    name: Build target images
    needs: build_target_bases
    runs-on: ubuntu-latest
    strategy:
      matrix:
        target: [win64]
        variant: [gpl,lgpl]
    steps:
      - name: Checkout
        uses: actions/checkout@v2
      - name: Generate Dockerfile
        run: ./generate.sh ${{ matrix.target }} ${{ matrix.variant }}
      - name: Build and push target base
        uses: docker/build-push-action@v1
        with:
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
          registry: docker.pkg.github.com
          build_args: BUILDKIT_INLINE_CACHE=1
          repository: btbn/ffmpeg-build/${{ matrix.target }}-${{ matrix.variant }}
          cache_froms: btbn/ffmpeg-build/${{ matrix.target }}-${{ matrix.variant }}:latest
          tags: latest
          always_pull: true