# This workflow will build a Java project with Maven
# For more information see: https://help.github.com/actions/language-and-framework-guides/building-and-testing-java-with-maven

name: Java CI with Maven

on:
  push:
    tags:
    - '*'
  pull_request:
    branches: [ master ]

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v2
      with:
        fetch-depth: 0
    - name: Get version information
      id: version
      uses: ncipollo/semantic-version-action@v1
    - name: Set up JDK 8
      uses: actions/setup-java@v1
      with:
        java-version: 8
    - name: Cache Maven packages
      uses: actions/cache@v1
      with:
        path: ~/.m2
        key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
        restore-keys: ${{ runner.os }}-m2
    - name: Build with Maven
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      run: mvn -B package --file pom.xml
    - run: mkdir staging && cp target/*.jar staging
    - name: Generate release diff
      env:
        BEGIN_COMMIT: ${{ steps.version.outputs.previous_tag }}
        END_COMMIT: ${{ steps.version.outputs.tag }}
      run: git fetch --tags --force && git log --pretty=format:"* %s (%h)" ${BEGIN_COMMIT}..${END_COMMIT} > release_notes.md
    - name: Create release
      uses: ncipollo/release-action@v1
      with:
        artifacts: staging/*
        allowUpdates: true
        bodyFile: "release_notes.md"
        draft: false
        prerelease: false
        token: ${{ secrets.GITHUB_TOKEN }}