backend_checkstyle.yml

name: Backend Checkstyle ensures correct style and formatting of the codebase
run-name: Checkstyle
on:
  workflow_call:

jobs:
  checkstyle:
    name: Checkstyle
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - name: Checkout
        uses: actions/checkout@v6
        with:
          fetch-depth: 0

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

      - name: Restore Maven Cache
        uses: actions/cache/restore@v5
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-maven-

      - name: Run Checkstyle
        run: mvn checkstyle:check

      - name: Save Maven Cache
        uses: actions/cache/save@v5
        if: success()
        with:
          path: ~/.m2/repository
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}