bazel_test.yml

# yamllint disable rule:line-length
---
name: Bazel
on:  # yamllint disable-line rule:truthy
  pull_request:
    branches: ['*']

jobs:
  test:
    runs-on: ubuntu-latest
    container:
      image: dtors/base-cpp:latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Configure Git Safe Directory
        run: |
          git config --global --add safe.directory $(pwd)

      - name: Find affected files
        id: affected_files
        run: |
          git fetch origin ${{ github.base_ref }} --depth=1
          git diff --diff-filter=ACM --name-only origin/${{ github.base_ref }} > affected_files.txt
          echo "Affected files:"
          cat affected_files.txt

      - name: Find affected Bazel targets
        id: bazel_targets
        run: |
          > affected_targets.txt

          while read file; do
            if [[ "$file" == *.c || "$file" == *.cc || "$file" == *.cpp || "$file" == *.cxx || "$file" == *.h || "$file" == *.hpp || "$file" == *.hxx ]]; then
              echo "Finding targets for: $file"
              targets=$(bazelisk query --output=package "$file")/...
              echo "$targets" >> affected_targets.txt
            fi
          done < affected_files.txt

          sort -u affected_targets.txt -o affected_targets.txt
          echo "Affected targets:"
          cat affected_targets.txt

          echo "targets=$(cat affected_targets.txt | tr -s '\n' ' ' | sed 's/^[ \t]*//;s/[ \t]*$//')" >> $GITHUB_ENV
        shell: bash

      - name: Find affected Bazel test targets
        id: bazel_test_targets
        run: |
          > affected_test_targets.txt

          while read target; do
            echo "Finding test targets for: $target"
            test_targets=$(bazelisk query "kind('cc_test', '$target')")
            echo "$test_targets" >> affected_test_targets.txt
          done < affected_targets.txt

          sort -u affected_test_targets.txt -o affected_test_targets.txt
          echo "Affected test targets:"
          cat affected_test_targets.txt

          echo "test_targets=$(cat affected_test_targets.txt | tr -s '\n' ' ' | sed 's/^[ \t]*//;s/[ \t]*$//')" >> $GITHUB_ENV
        shell: bash

      - name: Setup bazel cache
        if: ${{ env.test_targets && env.test_targets != '' }}
        uses: actions/cache@v4
        env:
          cache-name: bazel-cache
        with:
          path: |
            ~/.cache/bazelisk
            ~/.cache/bazel
          key: ${{ runner.os }}-${{ env.cache-name }}-${{ github.ref }}
          restore-keys: |
            ${{ runner.os }}-${{ env.cache-name }}-development

      - name: Test affected targets
        if: ${{ env.test_targets && env.test_targets != '' }}
        run: |
          echo "Running test targets: $test_targets"
          bazelisk test $test_targets
        shell: bash

      - name: No targets to test
        if: ${{ env.targets == '' || env.test_targets == '' }}
        run: echo "No affected Bazel test targets found. Skipping test."