main.yml

name: Build & Publish

on:
  push:
    branches:
      - master
  pull_request:

jobs:
  build:
    runs-on: ubuntu-latest
    env:
      ORG_GRADLE_PROJECT_branch: ${{ github.head_ref || github.ref_name }}
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-java@v4
        with:
          distribution: temurin
          java-version: |
            8
            16
            17
            21

      # Can't use setup-java for this because https://github.com/actions/setup-java/issues/366
      - uses: actions/cache@v4
        with:
          path: ~/.gradle/wrapper
          key: gradle-wrapper-${{ hashFiles('**/gradle-wrapper.properties') }}
      - uses: actions/cache@v4
        with:
          path: |
            ~/.gradle/caches
            **/loom-cache
          key: gradle-caches-${{ hashFiles('**/*.gradle*') }}-${{ hashFiles('**/gradle.properties', 'gradle/*.versions.toml') }}
          restore-keys: |
            gradle-caches-${{ hashFiles('**/*.gradle*') }}
            gradle-caches-

      - name: Setup environment
        run: |
          echo "ORG_GRADLE_PROJECT_BUILD_ID=$(expr ${{ github.run_number }} + 290)" >> "$GITHUB_ENV"
          # GitHub runners are limited to 7GB of RAM, so we'll limit our Gradle Daemon process to about half of that
          # which is enough so long as parallel task execution is limited.
          # We also need to limit the Kotlin Compiler Daemon to its default value (which it seems to be perfectly
          # fine with) as otherwise it inherits the Gradle Daemon's jvmargs putting us above the runner limit.
          # We also pin the amount of workers, so it doesn't break should GitHub increase the default available vCPUs.
          # We write these to GRADLE_USER_HOME to overrule the local "gradle.properties" of the project.
          mkdir -p "${GRADLE_USER_HOME:=$HOME/.gradle}"
          echo "org.gradle.jvmargs=-Xmx2G -Dkotlin.daemon.jvm.options=-Xmx512M" >> "$GRADLE_USER_HOME/gradle.properties"
          echo "org.gradle.workers.max=2" >> "$GRADLE_USER_HOME/gradle.properties"

      - name: Build
        run: ./gradlew build --stacktrace

      - name: Publish
        run: ./gradlew publish --stacktrace
        if: env.ORG_GRADLE_PROJECT_nexus_user != null
        env:
          ORG_GRADLE_PROJECT_nexus_user: ${{ secrets.NEXUS_USER }}
          ORG_GRADLE_PROJECT_nexus_password: ${{ secrets.NEXUS_PASSWORD }}