release.yml

name: Release

on:
  push:
    tags:
      - "v*.*.*"

permissions:
  contents: write

jobs:
  release:
    name: Build and release
    runs-on: ubuntu-latest

    steps:
      - name: Checkout tagged commit
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Validate tag format
        shell: bash
        run: |
          if [[ ! "$GITHUB_REF_NAME" =~ ^v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
            echo "Tag must match vMAJOR.MINOR.PATCH, for example v1.0.0."
            exit 1
          fi

      - name: Verify tag is on main
        shell: bash
        run: |
          git fetch origin main
          if ! git merge-base --is-ancestor "$GITHUB_SHA" origin/main; then
            echo "Release tag must point to a commit included in main."
            exit 1
          fi

      - name: Set up JDK 21
        uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: "21"

      - name: Set up Gradle
        uses: gradle/actions/setup-gradle@v4
        with:
          gradle-version: "9.2.1"

      - name: Build
        run: gradle build

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          files: build/libs/Jetpack.jar
          generate_release_notes: true