github_release.yml

# Creates a release on GitHub with a new tag of the current version
name: Release to GitHub

on:
  workflow_dispatch:
    inputs:
      label:
        description: 'Prepended Label'
        required: false

jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Repository
        uses: actions/checkout@v3

      - name: Get Mod Version
        id: get_version
        run: echo ::set-output name=version::$(sed -n 's/^modVersion = \(.*\)/\1/p' < gradle.properties*)

      - name: Get Previous tag
        id: previous_tag
        uses: pozetroninc/github-action-get-latest-release@master
        with:
          repository: ${{ github.repository }}

      # exit CI early as a failure if creating this release clashes with the previous version
      - name: Check if Version Bump is Needed
        if: ${{ format('v{0}', steps.get_version.outputs.version) == (steps.previous_tag.outputs.release) }}
        uses: actions/github-script@v6
        with:
          script: core.setFailed("A version bump from ${{ steps.previous_tag.outputs.release }} is required!")

      - name: Set up JDK 8
        uses: actions/setup-java@v2
        with:
          java-version: '8'
          distribution: 'adopt'

      - name: Use Cached Gradle Packages
        uses: actions/cache@v2
        with:
          path: |
            ~/.gradle/caches
            ~/.gradle/wrapper
          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle*', '**/gradle.properties*') }}
          restore-keys: ${{ runner.os }}-gradle-

      - name: Build with Gradle
        run: |
          chmod +x gradlew
          ./gradlew build

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v1
        with:
          tag_name: v${{ steps.get_version.outputs.version }}
          files: build/libs/*.jar
          body: "**${{ github.event.inputs.label }}**\n"
          generate_release_notes: true