build-and-push.yaml

name: Build and push
on:
  push:
    branches:
      - 'main'
    paths-ignore:
      - 'README**'
      - 'LICENSE'
  pull_request_target:
    paths-ignore:
      - 'README**'
      - 'LICENSE'

env:
  REGISTRY_IMAGE: ${{ secrets.DOCKERHUB_USERNAME }}/flexget
  GHCR_IMAGE: ghcr.io/${{ github.repository_owner }}/flexget

jobs:
  prepare:
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.platforms.outputs.matrix }}
    steps:
      - uses: actions/checkout@v4
        with:
          ref: ${{ github.event.pull_request.head.sha }}

      - id: platforms
        run: |
          echo "matrix=$(docker buildx f all --print | jq -cr '.target.all.platforms')" >> ${GITHUB_OUTPUT}

      - id: meta
        uses: docker/metadata-action@v5
        with:
          images: |
            ${{ env.REGISTRY_IMAGE }}
            ${{ env.GHCR_IMAGE }}
          tags: |
            type=raw,value=latest,enable={{is_default_branch}}
            type=ref,event=branch
            type=ref,event=pr
            type=pep440,pattern={{version}}
            type=pep440,pattern={{major}}.{{minor}}
            type=pep440,pattern={{major}}

      - uses: actions/upload-artifact@v4
        with:
          name: bake-meta
          path: ${{ steps.meta.outputs.bake-file }}
          retention-days: 1

  build:
    runs-on: ubuntu-latest
    needs:
      - prepare
    strategy:
      matrix:
        platform: ${{ fromJson(needs.prepare.outputs.matrix) }}
    steps:
      - run: |
          platform=${{ matrix.platform }}
          echo "PLATFORM_PAIR=${platform//\//-}" >> $GITHUB_ENV

      - uses: actions/checkout@v4
        with:
          ref: ${{ github.event.pull_request.head.sha }}

      - uses: actions/download-artifact@v4
        with:
          name: bake-meta
          path: /tmp

      - uses: docker/setup-qemu-action@v3

      - uses: docker/setup-buildx-action@v3

      - uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - id: bake
        uses: docker/bake-action@v5
        with:
          files: |
            ./docker-bake.hcl
            /tmp/docker-metadata-action-bake.json
          targets: all
          set: |
            *.tags=
            *.platform=${{ matrix.platform }}
            *.output=type=registry,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true

      - run: |
          mkdir -p /tmp/digests
          digest="${{ fromJSON(steps.bake.outputs.metadata).all['containerimage.digest'] }}"
          touch "/tmp/digests/${digest#sha256:}"

      - uses: actions/upload-artifact@v4
        with:
          name: digests-${{ env.PLATFORM_PAIR }}
          path: /tmp/digests/*
          retention-days: 1

  merge:
    runs-on: ubuntu-latest
    needs:
      - build
    steps:
      - uses: actions/download-artifact@v4
        with:
          name: bake-meta
          path: /tmp

      - uses: actions/download-artifact@v4
        with:
          path: /tmp/digests
          pattern: digests-*
          merge-multiple: true

      - uses: docker/setup-buildx-action@v3

      - uses: docker/login-action@v3
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - working-directory: /tmp/digests
        run: |
          docker buildx imagetools create $(jq -cr '.target."docker-metadata-action".tags |
            map(select(startswith("${{ env.REGISTRY_IMAGE }}") or startswith("${{ env.GHCR_IMAGE }}")) | "-t " + .) |
            join(" ")' /tmp/docker-metadata-action-bake.json) $(printf '${{ env.REGISTRY_IMAGE }}@sha256:%s ' *)