runtime-test.yml

name: Runtime test

on:
  workflow_dispatch:
  workflow_call:
  merge_group:
  push:
    branches:
      - '**'

permissions:
  contents: read

jobs:
  runtime-test:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v6
      with:
        fetch-depth: 0

    - name: Set up JDK
      uses: actions/setup-java@v5
      with:
        java-version: '25'
        distribution: 'temurin'

    - uses: gradle/actions/setup-gradle@v6
      with:
        gradle-version: 9.6.0
      name: Set up Gradle

    - name: Add permission
      run: chmod +x ./gradlew

    - name: Set build version
      run: |
        previous_tag="$(git describe --tags --abbrev=0 --exclude=dev 2>/dev/null || echo 0.0.0)"
        previous_tag="${previous_tag#v}"
        short_hash="$(git rev-parse --short HEAD)"
        echo "MOD_VERSION=${previous_tag}+${short_hash}" >> "$GITHUB_ENV"
        echo "Build version: ${previous_tag}+${short_hash}"

    - name: Execute Gradle build
      run: ./gradlew build -x spotlessCheck -Pmod_version="${MOD_VERSION}"

    - name: Install client runtime dependencies
      run: sudo DEBIAN_FRONTEND=noninteractive apt-get update && sudo DEBIAN_FRONTEND=noninteractive apt-get install -y xvfb

    - name: Prepare client runtime directory
      run: mkdir -p run/client/mods

    - name: Download client runtime test mod
      uses: robinraju/release-downloader@v1.11
      with:
        repository: headlesshq/mc-runtime-test
        tag: "4.4.0"
        fileName: "mc-runtime-test-1.12.2-*-lexforge-release.jar"
        out-file-path: run/client/mods

    - name: Configure client runtime
      run: |
        mkdir -p run/client
        cat <<EOF >> run/client/options.txt
        onboardAccessibility:false
        pauseOnLostFocus:false
        EOF

    - name: Run client runtime test
      run: xvfb-run -a timeout 10m ./gradlew runClient --no-daemon -Pmod_version="${MOD_VERSION}"

    - name: Run server runtime test
      run: |
        set -euo pipefail

        mkdir -p run/server
        echo "eula=true" > run/server/eula.txt

        setsid ./gradlew runServer --no-daemon -Pmod_version="${MOD_VERSION}" > run/server/runtime-test-server.log 2>&1 &
        server_pid=$!

        cleanup() {
          kill -TERM "-${server_pid}" 2>/dev/null || true
          wait "${server_pid}" 2>/dev/null || true
        }
        trap cleanup EXIT

        deadline=$((SECONDS + 600))
        while [ "${SECONDS}" -lt "${deadline}" ]; do
          if ! kill -0 "${server_pid}" 2>/dev/null; then
            wait "${server_pid}" || exit_code=$?
            echo "Server exited before startup with code ${exit_code:-0}."
            tail -n 200 run/server/runtime-test-server.log || true
            exit 1
          fi

          if [ -d run/server/crash-reports ] && find run/server/crash-reports -maxdepth 1 -type f -name "*.txt" | grep -q .; then
            echo "Server generated a crash report."
            find run/server/crash-reports -maxdepth 1 -type f -name "*.txt" -print
            tail -n 200 run/server/runtime-test-server.log || true
            exit 1
          fi

          if grep -E 'Done \(|For help, type "help"' run/server/runtime-test-server.log >/dev/null 2>&1; then
            echo "Server startup detected."
            cleanup
            trap - EXIT
            exit 0
          fi

          sleep 5
        done

        echo "Server did not finish startup within 10 minutes."
        tail -n 200 run/server/runtime-test-server.log || true
        exit 1

    - name: Upload runtime logs
      if: always()
      uses: actions/upload-artifact@v7
      with:
        name: runtime-test-logs
        if-no-files-found: ignore
        path: |
          run/client/logs
          run/client/crash-reports
          run/server/logs
          run/server/crash-reports
          run/server/runtime-test-server.log