main.yml

# This is a basic workflow to help you get started with Actions

name: Continuous Integration

# Controls when the action will run. 
on:
    # Triggers the workflow on push or pull request events but only for the master branch
    push:
        branches: [ master ]
    pull_request:
        branches: [ master ]

    # Allows you to run this workflow manually from the Actions tab
    workflow_dispatch:

# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
    # This workflow contains a single job called "build"
    build:
        # The type of runner that the job will run on
        runs-on: ubuntu-latest

        # Steps represent a sequence of tasks that will be executed as part of the job
        steps:

            # no longer needed - we now get protoc via gradle plugin
            # - name: Install Protoc
            #  uses: arduino/setup-protoc@v1

            # Get Java
            -   uses: actions/setup-java@v2
                with:
                    distribution: 'adopt' # See 'Supported distributions' for available options
                    java-version: '11'

            # per https://docs.github.com/en/actions/guides/building-and-testing-java-with-gradle#caching-dependencies
            # speeds up future builds
            -   name: Cache Gradle packages
                uses: actions/cache@v2
                with:
                    path: |
                        ~/.gradle/caches
                        ~/.gradle/wrapper
                    key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle-wrapper.properties') }}
                    restore-keys: |
                        ${{ runner.os }}-gradle-

            # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
            -   uses: actions/checkout@v2
                with:
                    submodules: 'recursive'

            # Runs a single command using the runners shell
            -   name: Build with gradle
                run: ./gradlew build

            -   name: Cleanup Gradle Cache
                # Remove some files from the Gradle cache, so they aren't cached by GitHub Actions.
                # Restoring these files from a GitHub Actions cache might cause problems for future builds.
                run: |
                    rm -f ~/.gradle/caches/modules-2/modules-2.lock
                    rm -f ~/.gradle/caches/modules-2/gc.properties

            # Per https://docs.github.com/en/actions/guides/building-and-testing-java-with-gradle#packaging-workflow-data-as-artifacts
            -   uses: actions/upload-artifact@v2
                with:
                    name: Package
                    path: build/libs