release.yml

name: Maven Build and Release

on:
  push:
    tags: [ 'v*' ]

jobs:
  build:

    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v4
    - name: Set up JDK 17
      uses: actions/setup-java@v4
      with:
        distribution: 'adopt'
        java-version: '17'
    - name: Set RELEASE_VERSION from tag
      run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
    - name: Print version
      run: |
        echo $RELEASE_VERSION
    - name: Build with Maven
      run: mvn -B package --file pom.xml
    - name: Upload artifact
      uses: actions/upload-artifact@v4
      with:
        name: target
        path: ${{ github.workspace }}/target/**/*
    - name: Extract changelog content
      run: |
        sed -n "/^## \[$RELEASE_VERSION]/,/^## /p" CHANGELOG.md | sed '1d;$d' > changelog_body.md
    - name: Release
      uses: softprops/action-gh-release@v1
      with:
        body_path: changelog_body.md
        draft: true
        prerelease: false
        files: |
          target/minecraft-prometheus-exporter-*.jar
          README.md
          CHANGELOG.md
        fail_on_unmatched_files: true
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}