publish-images.yml

name: Publish docker images to GHCR
concurrency:
  group: "${{github.workflow}}-${{github.ref}}"
  cancel-in-progress: true
on:
  workflow_dispatch:
  schedule:
    - cron: "0 3 * * 3" # At 03:00 on Wednesday # https://crontab.guru/#0_3_*_*_3

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        platform:
          - aarch64-linux-gnu
          - aarch64-linux-musl
          - arm-linux-gnu
          - arm-linux-musl
          - arm64-darwin
          - jruby
          - x64-mingw-ucrt
          - x64-mingw32
          - x86-linux-gnu
          - x86-linux-musl
          - x86-mingw32
          - x86_64-darwin
          - x86_64-linux-gnu
          - x86_64-linux-musl
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Use cache from primary pipeline
        uses: actions/cache@v4
        with:
          path: tmp/build-cache
          key: ${{runner.os}}-${{matrix.platform}}-buildx-${{github.sha}}
          restore-keys: |
            ${{runner.os}}-${{matrix.platform}}-buildx
      - uses: ruby/setup-ruby@v1
        with:
          ruby-version: "3.3"
          bundler-cache: true
      - name: Generate docker image names
        id: rcd_config
        run: |
          bundle exec ruby -e ' \
            require "rake_compiler_dock"; \
            print "image_name="; \
            puts RakeCompilerDock::Starter.container_image_name(:platform => %q(${{matrix.platform}})); \
            print "snapshot_name="; \
            puts RakeCompilerDock::Starter.container_image_name(:platform => %q(${{matrix.platform}}), :version => %q(snapshot)); \
            if %q(${{matrix.platform}}).end_with?("-gnu"); \
              print "generic_linux_snapshot_name="; \
              puts RakeCompilerDock::Starter.container_image_name(:platform => %q(${{matrix.platform}}), :version => %q(snapshot)).chomp("-gnu"); \
            end \
          ' | tee -a $GITHUB_OUTPUT
      - name: Build docker image
        env:
          RCD_DOCKER_BUILD: docker buildx build --cache-from=type=local,src=tmp/build-cache --cache-to=type=local,dest=tmp/build-cache-new --load
        run: |
          docker buildx create --driver docker-container --use
          bundle exec rake build:${{matrix.platform}}
          # move build cache and remove outdated layers
          rm -rf tmp/build-cache
          mv tmp/build-cache-new tmp/build-cache
      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{github.actor}}
          password: ${{secrets.GITHUB_TOKEN}}
      - name: Push the docker image
        run: |
          docker images
          docker tag ${{steps.rcd_config.outputs.image_name}} ${{steps.rcd_config.outputs.snapshot_name}}
          docker push ${{steps.rcd_config.outputs.snapshot_name}}
      - name: Push a generic linux image
        if: ${{ steps.rcd_config.outputs.generic_linux_snapshot_name }}
        run: |
          docker tag ${{steps.rcd_config.outputs.image_name}} ${{steps.rcd_config.outputs.generic_linux_snapshot_name}}
          docker push ${{steps.rcd_config.outputs.generic_linux_snapshot_name}}