build.yml

name: CI

# 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:

    runs-on: macos-latest

    steps:
    - uses: actions/checkout@v2
# for future use, see https://github.com/MobilityData/gtfs-validator/blob/add65e0a6f857951ff4d3c19fc268d99d7509e45/core/build.gradle#L22
    - name: Prepare version name
      id: prep
      run: |
        VERSION_TAG=edge
        if [[ $GITHUB_REF == refs/tags/* ]]; then
          VERSION_TAG=${GITHUB_REF#refs/tags/}
        elif [[ $GITHUB_REF == refs/heads/* ]]; then
          VERSION_TAG=-$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g')
        elif [[ $GITHUB_REF == refs/pull/* ]]; then
          VERSION_TAG=-pr-${{ github.event.number }}
        fi
        if [ ${VERSION_TAG} != ${GITHUB_REF#refs/tags/} ]; then
          VERSION_TAG=v${VERSION_TAG}-sha-${GITHUB_SHA::8}-SNAPSHOT
        fi
        echo ::set-output name=versionTag::${VERSION_TAG}
    - name: Set up JDK 11
      uses: actions/setup-java@v1
      with:
        java-version: 11
# to speed up building process
    - name: Cache Gradle packages
      uses: actions/cache@v2
      with:
        path: ~/.gradle/caches
        key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
        restore-keys: ${{ runner.os }}-gradle
    - name: Grant execute permission for gradlew
      run: chmod +x gradlew
    - name: Build with Gradle
      run: ./gradlew build