name: build

on:
  push:
    branches:
      - 'main'
      - 'release/*'
    tags:
      - 'v*'
  pull_request:
    branches:
      - '*'

env:
  DOCKERHUB_SLUG: distribution/distribution

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      -
        name: Checkout
        uses: actions/checkout@v2
        with:
          fetch-depth: 0
      -
        name: Docker meta
        id: meta
        uses: docker/metadata-action@v3
        with:
          images: |
            ${{ env.DOCKERHUB_SLUG }}
          ### versioning strategy
          ### push semver tag v3.2.1 on main (default branch)
          # distribution/distribution:3.2.1
          # distribution/distribution:3.2
          # distribution/distribution:3
          # distribution/distribution:latest
          ### push semver prelease tag v3.0.0-beta.1 on main (default branch)
          # distribution/distribution:3.0.0-beta.1
          ### push on main
          # distribution/distribution:edge
          tags: |
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=semver,pattern={{major}}
            type=ref,event=pr
            type=edge
          labels: |
            org.opencontainers.image.title=Distribution
            org.opencontainers.image.description=The toolkit to pack, ship, store, and deliver container content
      -
        name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v1
      -
        name: Login to DockerHub
        if: github.event_name != 'pull_request'
        uses: docker/login-action@v1
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}
      -
        name: Build artifacts
        uses: docker/bake-action@v1
        with:
          targets: artifact-all
      -
        name: Move artifacts
        run: |
          mv ./bin/**/* ./bin/
      -
        name: Upload artifacts
        uses: actions/upload-artifact@v2
        with:
          name: registry
          path: ./bin/*
          if-no-files-found: error
      -
        name: Build image
        uses: docker/bake-action@v1
        with:
          files: |
            ./docker-bake.hcl
            ${{ steps.meta.outputs.bake-file }}
          targets: image-all
          push: ${{ github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/') }}
      -
        name: GitHub Release
        uses: softprops/action-gh-release@v1
        if: startsWith(github.ref, 'refs/tags/')
        with:
          draft: true
          files: |
            bin/*.tar.gz
            bin/*.sha256
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}