test-pull-request-java.yml

name: Test Pull Request (Java)

on:
  merge_group:
  pull_request:
    branches:
    - main
    paths:
    - 'java/**'

jobs:
  prepare:
    name: Prepare
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.paths.outputs.matrix }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Discover changed paths
        id: paths
        run: |
          env
          # see: https://stackoverflow.com/a/8721550/24069 for usage of paste
          changed_java_folders=$( git diff --name-only --merge-base origin/$GITHUB_BASE_REF $GITHUB_SHA  | xargs -n 1 dirname | uniq | grep -v "^\." | paste -s -d, - )
          echo "These are the Java folders where we found changes for this PR : $changed_java_folders" >> $GITHUB_STEP_SUMMARY
          echo "matrix={\"java_sample_folder\":[$changed_java_folders]}" >> $GITHUB_OUTPUT
          echo "This is how the matrix will look like: $(cat $GITHUB_OUTPUT)"

  smoke:
    needs: prepare
    name: Smoke Tests
    runs-on: ubuntu-latest
    strategy:
      matrix: ${{ fromJSON(needs.prepare.outputs.matrix) }}
#        java_sample_folder:

    steps:
    - name: Setup Go
      uses: actions/setup-go@v4
      with:
        go-version: 1.18.x

    - name: Checkout
      uses: actions/checkout@v4

    - name: Smoke Test Java samples
      run: |
        echo "About to run the smoke test script against this suite folder: ${{ matrix.java_sample_folder }}"
        ./scripts/smoke.sh --suite ${{ matrix.java_sample_folder }}" \
                           --builder paketobuildpacks/builder:full \
                           --builder paketobuildpacks/builder:base \
                           --builder paketobuildpacks/builder:tiny