build.yml

name: Build

on:
  push:
    branches:
      - master
  pull_request:
    branches:
      - master
  schedule:
    - cron:  '0 0 * * *'


jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        scalaVersion: ['2.12.19', '2.13.14', '3.3.3', '3.4.3']
        javaTag: [
          'graalvm-community-22.0.1',
          'graalvm-community-21.0.2',
          'graalvm-ce-22.3.3-b1-java17',
          'eclipse-temurin-jammy-22_36',
          'eclipse-temurin-jammy-21.0.2_13',
          'eclipse-temurin-jammy-17.0.10_7',
          'eclipse-temurin-alpine-22_36',
          'eclipse-temurin-alpine-21.0.2_13',
          'eclipse-temurin-alpine-17.0.10_7'
        ]
        include:
          # https://github.com/graalvm/container/pkgs/container/graalvm-community
          - javaTag: 'graalvm-community-22.0.1'
            dockerContext: 'graalvm-community'
            baseImageTag: '22.0.1-ol9'
            platforms: 'linux/amd64,linux/arm64'
          - javaTag: 'graalvm-community-21.0.2'
            dockerContext: 'graalvm-community'
            baseImageTag: '21.0.2-ol9'
            platforms: 'linux/amd64,linux/arm64'
          # https://github.com/graalvm/container/pkgs/container/graalvm-ce
          - javaTag: 'graalvm-ce-22.3.3-b1-java17'
            dockerContext: 'graalvm-ce'
            baseImageTag: 'ol9-java17-22.3.3-b1'
            platforms: 'linux/amd64,linux/arm64'
          # https://hub.docker.com/_/eclipse-temurin/tags
          - javaTag: 'eclipse-temurin-jammy-22_36'
            dockerContext: 'eclipse-temurin'
            baseImageTag: '22_36-jdk-jammy'
            platforms: 'linux/amd64,linux/arm64'
          - javaTag: 'eclipse-temurin-jammy-21.0.2_13'
            dockerContext: 'eclipse-temurin'
            baseImageTag: '21.0.2_13-jdk-jammy'
            platforms: 'linux/amd64,linux/arm64'
          - javaTag: 'eclipse-temurin-jammy-17.0.10_7'
            dockerContext: 'eclipse-temurin'
            baseImageTag: '17.0.10_7-jdk-jammy'
            platforms: 'linux/amd64,linux/arm64'
          # https://hub.docker.com/_/eclipse-temurin/tags?page=1&name=alpine
          - javaTag: 'eclipse-temurin-alpine-22_36'
            dockerContext: 'eclipse-temurin'
            dockerfile: 'alpine.Dockerfile'
            baseImageTag: '22_36-jdk-alpine'
            platforms: 'linux/amd64,linux/arm64/v8'
          - javaTag: 'eclipse-temurin-alpine-21.0.2_13'
            dockerContext: 'eclipse-temurin'
            dockerfile: 'alpine.Dockerfile'
            baseImageTag: '21.0.2_13-jdk-alpine'
            platforms: 'linux/amd64,linux/arm64/v8'
          - javaTag: 'eclipse-temurin-alpine-17.0.10_7'
            dockerContext: 'eclipse-temurin'
            dockerfile: 'alpine.Dockerfile'
            baseImageTag: '17.0.10_7-jdk-alpine'
            platforms: 'linux/amd64'
    steps:
    - uses: actions/checkout@v4
    - name: Set up QEMU
      uses: docker/setup-qemu-action@v3.2.0
    - name: Set up Docker Buildx
      id: buildx
      uses: docker/setup-buildx-action@v3.6.1
      #      with:
      #        install: true
    - name: Available platforms
      run: echo ${{ steps.buildx.outputs.platforms }}
    - name: Get latest SBT version
      id: get_sbt_version
      run: |
        SBT_VERSION=$(
          curl --silent -L https://github.com/sbt/sbt/releases |
          grep -i -w -o '>[0-9]*\.[0-9]*\.[0-9]*</a>' |
          grep -i -w -o '[0-9]*\.[0-9]*\.[0-9]*' |
          sort --version-sort | tail -n 1)
        [[ -z "$SBT_VERSION" ]] && { echo "Failed to get latest sbt version" ; exit 1; }
        echo "VERSION=$SBT_VERSION" >> $GITHUB_OUTPUT
    - name: Create docker tag
      id: create_docker_tag
      run: |
        TAG=sbtscala/scala-sbt:${{ matrix.javaTag }}_${{ steps.get_sbt_version.outputs.VERSION }}_${{ matrix.scalaVersion }}
        echo "TAG=$TAG" >> $GITHUB_OUTPUT
    - name: Build docker image
      uses: docker/build-push-action@v6
      with:
        context: ${{ matrix.dockerContext }}
        no-cache: true
        tags: ${{ steps.create_docker_tag.outputs.TAG }}
        file: ${{ matrix.dockerContext }}/${{ matrix.dockerfile || 'Dockerfile' }}
        build-args: |
          BASE_IMAGE_TAG=${{ matrix.baseImageTag }}
          SBT_VERSION=${{ steps.get_sbt_version.outputs.VERSION }}
          SCALA_VERSION=${{ matrix.scalaVersion }}
        load: true
    - name: Test docker image as root (default)
      if: ${{ !startsWith(matrix.scalaVersion, '2.12') }}
      # scala --version does not work on < 2.13
      run: |
        docker run "${{ steps.create_docker_tag.outputs.TAG }}" \
          scala --version &&
          sbt about
    - name: Test docker image scala as sbtuser
      if: ${{ !startsWith(matrix.scalaVersion, '2.12') }}
      # scala --version does not work on < 2.13
      run: |
        docker run -u sbtuser -w /home/sbtuser "${{ steps.create_docker_tag.outputs.TAG }}" \
          scala --version &&
          sbt about
    - name: Log in to DockerHub
      if: github.event_name != 'pull_request' && github.actor != 'dependabot[bot]'
      uses: docker/login-action@v3
      with:
        username: ${{ secrets.DOCKERHUB_USERNAME }}
        password: ${{ secrets.DOCKERHUB_TOKEN }}
    - name: Rebuild and push ${{ matrix.platforms }} docker images
      if: github.event_name != 'pull_request' && github.actor != 'dependabot[bot]'
      uses: docker/build-push-action@v6
      with:
        context: ${{ matrix.dockerContext }}
        file: ${{ matrix.dockerContext }}/${{ matrix.dockerfile || 'Dockerfile' }}
        tags: ${{ steps.create_docker_tag.outputs.TAG }}
        build-args: |
          BASE_IMAGE_TAG=${{ matrix.baseImageTag }}
          SBT_VERSION=${{ steps.get_sbt_version.outputs.VERSION }}
          SCALA_VERSION=${{ matrix.scalaVersion }}
        platforms: ${{ matrix.platforms }}
        push: true