master.yml

name: Build and Release

on:
  push:
    branches:
      - master
    tags:
      - 'v*.*.*'          # triggers on tags like v3.0.1, v4.0.0, etc.

permissions:
  contents: write         # needed to create GitHub Releases and upload assets

jobs:
  build-and-release:
    name: Build fat JAR and publish release
    runs-on: ubuntu-latest

    steps:
      # ── 1. Checkout ────────────────────────────────────────────────────────
      - name: Checkout source
        uses: actions/checkout@v4
        with:
          fetch-depth: 0   # full history so Gradle version plugins work correctly

      # ── 2. Java 21 ─────────────────────────────────────────────────────────
      - name: Set up JDK 21
        uses: actions/setup-java@v4
        with:
          java-version: '21'
          distribution: 'temurin'
          cache: gradle

      # ── 3. Gradle wrapper permissions ──────────────────────────────────────
      - name: Make gradlew executable
        run: chmod +x ./gradlew

      # ── 4. Build ────────────────────────────────────────────────────────────
      # fatJar lives in gui/build.gradle.kts — it runs shadowJar then copies
      # the output to dist/threadtear-<version>.jar
      - name: Build fat JAR
        run: ./gradlew :threadtear-gui:fatJar --no-daemon
        env:
          JAVA_TOOL_OPTIONS: "-Dfile.encoding=UTF-8"

      # ── 5. Resolve the JAR path and derive version from the Git tag ─────────
      - name: Locate built JAR
        id: jar
        run: |
          JAR=$(ls dist/threadtear-*.jar | head -1)
          echo "path=$JAR" >> "$GITHUB_OUTPUT"
          echo "name=$(basename $JAR)" >> "$GITHUB_OUTPUT"
          # Strip the leading 'v' from the tag to get a clean version string
          VERSION="${GITHUB_REF_NAME#v}"
          echo "version=$VERSION" >> "$GITHUB_OUTPUT"

      # ── 6. Create GitHub Release and upload the JAR ─────────────────────────
      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ github.ref_name }}
          name: "ThreadTearX ${{ steps.jar.outputs.version }}"
          body: |
            ## ThreadTearX ${{ steps.jar.outputs.version }}

            ### Installation
            Download `${{ steps.jar.outputs.name }}` and run:
            ```
            java -jar ${{ steps.jar.outputs.name }}
            ```
            Requires **Java 21** or newer.

            ### What's changed
            _Fill in release notes here, or connect a CHANGELOG.md._
          draft: false
          prerelease: ${{ contains(github.ref_name, '-') }}   # tags like v4.0.0-beta become pre-releases
          files: ${{ steps.jar.outputs.path }}
          fail_on_unmatched_files: true