autoincrement-project-version.yml

# This workflow will build a package using Gradle and then publish it to GitHub packages when a release is created
# For more information see: https://github.com/actions/setup-java#publishing-using-gradle

name: Autoincrement project version
on: 
  pull_request:
    types: [opened,labeled,unlabeled]
    branches:
      - master

jobs:
  increment_version:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@master
      with:
        ref: ${{ github.head_ref }}
          
    - name: Set up JDK
      uses: actions/setup-java@v1
      with:
        java-version: 8
        server-id: github # Value of the distributionManagement/repository/id field of the pom.xml
        settings-path: ${{ github.workspace }} # location for the settings.xml file

    - name: Set Project Version
      env:
        event: ${{ github.event.action }}
        event_label_name: ${{ github.event.label.name }}
      run: |
        git config --local user.email "action@github.com"
        git config --local user.name "GitHub Action"
        if [ "$event" == "opened" ] || ([ "$event" == "unlabeled" ] && [ "$event_label_name" == "do_not_increment_version" ])
        then 
          ./gradlew incrementProjectVersion --no-daemon
        git commit -m "autoincrement project version" -a || echo "no changes"
        elif [ "$event" == "labeled" ] && [ "$event_label_name" == "do_not_increment_version" ]
        then
          ./gradlew decrementProjectVersion --no-daemon
        git commit -m "autodecrement project version" -a || echo "no changes"
        fi
    - name: Push changes
      uses: ad-m/github-push-action@master
      with:
        github_token: ${{ secrets.GITHUB_TOKEN }}
        branch: ${{ github.head_ref }}