version_update.yml

name: Versions Update

on:
  push:
    branches: [ master ]
    paths:
      - '.github/workflows/version_update.yml'
  schedule:
    # Run once on the first of the month
    - cron: '45 0 1 * *'

jobs:
  update:
    name: Versions Update
    runs-on: ubuntu-latest
    permissions:
      actions: write
      contents: write
      security-events: write

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Checkout submodules
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          path: advent-of-code-inputs
          repository: zodac/advent-of-code-inputs
          token: ${{ secrets.SUBMODULE_ACCESS }}

      - name: Set up JDK
        uses: actions/setup-java@v4.2.1
        with:
          distribution: 'temurin'
          java-version: '23'

      - name: Cache local .m2
        uses: actions/cache@v4.0.2
        with:
          path: ~/.m2
          key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
          restore-keys: |
            ${{ runner.os }}-maven-

      - name: Set up maven
        uses: s4u/setup-maven-action@v1.14.0
        with:
          java-distribution: 'temurin'
          java-version: '23'
          maven-version: '3.9.9'

      - name: Update Maven project versions
        run: |
          mvn versions:update-properties
          if git diff-index --quiet HEAD; then
            echo "No changes to commit"
            echo "has_changes=false" >> $GITHUB_ENV
          else
            echo "has_changes=true" >> $GITHUB_ENV
          fi

      - name: Run linters and unit/integration tests
        id: application_tests
        if: env.has_changes == 'true'
        run: mvn clean install -Dall

      - name: Commit changes
        id: change_commit
        if: env.has_changes == 'true'
        run: |
          git config user.name github-actions
          git config user.email "actions@github.com"
          git add .
          git commit -m 'Updating versions'

      - name: Push changes
        if: env.has_changes == 'true'
        uses: ad-m/github-push-action@v0.8.0
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          branch: master