name: Flaky test detector
run-name: Flaky test detector - ${{ inputs.flaky_test }} (${{ inputs.flaky_test_runs_per_job }}x${{ inputs.flaky_test_parallel_jobs }})
on:
  workflow_dispatch:
    inputs:
      flaky_test:
        required: true
        type: string
        description: Test to run
      flaky_test_runs_per_job:
        required: false
        default: 8
        type: number
        description: Number of times to run the test
      flaky_test_parallel_jobs:
        required: false
        default: 32
        type: number
        description: Number of parallel jobs to run
env:
  image_suffix: -v1b94240
  pg15_version: 15.4
  build_image_name: citus/extbuilder
  test_image_name: citus/failtester
jobs:
  set_image_names:
    name: Set CI image names
    runs-on: ubuntu-latest
    outputs:
      build_image: ${{ steps.set_build_image_name.outputs.image }}
      test_image: ${{ steps.set_test_image_name.outputs.image }}
    steps:
    - id: set_build_image_name
      run: |
        echo "image=${{ env.build_image_name }}:${{ env.pg15_version  }}${{ env.image_suffix }}" >> "$GITHUB_OUTPUT"
      shell: bash
    - id: set_test_image_name
      run: |
        echo "image=${{ env.test_image_name }}:${{ env.pg15_version  }}${{ env.image_suffix }}" >> "$GITHUB_OUTPUT"
      shell: bash
  build:
    name: Build Citus
    runs-on: ubuntu-latest
    needs: set_image_names
    container:
      image: ${{ needs.set_image_names.outputs.build_image }}
      options: --user root
    steps:
    - uses: actions/checkout@v3.5.0
    - name: Configure, Build, and Install
      run: |
        echo "PG_MAJOR=${PG_MAJOR}" >> $GITHUB_ENV
        ./ci/build-citus.sh
      shell: bash
    - uses: actions/upload-artifact@v3.1.1
      with:
        name: build-${{ env.PG_MAJOR }}
        path: |-
          ./build-${{ env.PG_MAJOR }}/*
          ./install-${{ env.PG_MAJOR }}.tar
  prepare_parallelization_matrix:
    name: Prepare parallelization matrix
    runs-on: ubuntu-latest
    outputs:
      json: ${{ steps.parallelization.outputs.json }}
    steps:
      - uses: actions/checkout@v3.5.0
      - uses: "./.github/actions/parallelization"
        id: parallelization
        with:
          count: ${{ inputs.flaky_test_parallel_jobs }}
  test_flakyness:
    name: Test flakyness
    if: ${{ inputs.flaky_test }}
    runs-on: ubuntu-latest
    container:
      image: ${{ needs.set_image_names.outputs.test_image }}
      options: --user root
    needs:
      [set_image_names,  build, prepare_parallelization_matrix]
    env:
      test: "${{ inputs.flaky_test }}"
      runs: "${{ inputs.flaky_test_runs_per_job }}"
      skip: false
    strategy:
      fail-fast: false
      matrix: ${{ fromJson(needs.prepare_parallelization_matrix.outputs.json) }}
    steps:
    - uses: actions/checkout@v3.5.0
    - name: Expose $PG_MAJOR to Github Env
      run: echo "PG_MAJOR=${PG_MAJOR}" >> $GITHUB_ENV
      shell: bash
    - uses: actions/download-artifact@v3.0.1
      with:
        name: build-${{ env.PG_MAJOR }}
    - name: Detect regression tests need to be ran
      id: detect-regression-tests
      run: |-
        testForDebugging="${{ env.test }}"
        if [ -z "$testForDebugging" ]; then
          detected_changes=$(git diff origin/main... --name-only --diff-filter=AM | (grep 'src/test/regress/sql/.*\.sql\|src/test/regress/spec/.*\.spec\|src/test/regress/citus_tests/test/test_.*\.py' || true))
          tests=${detected_changes}
        else
          tests=$testForDebugging;
        fi
        if [ -z "$tests" ]; then
            echo "No test found."
            gh run cancel ${{ github.run_id }}
            gh run watch ${{ github.run_id }}
        else
          echo "Detected tests " $tests
        fi
        echo "tests=$tests" >> "$GITHUB_OUTPUT"
    - uses: "./.github/actions/install_extension"
    - name: Run minimal tests
      run: |-
        tests_array=(${{ steps.detect-regression-tests.outputs.tests }})
        for test in "${tests_array[@]}"
        do
            test_name=$(echo "$test" | sed -r "s/.+\/(.+)\..+/\1/")
            gosu circleci src/test/regress/citus_tests/run_test.py $test_name --repeat ${{ env.runs }} --use-base-schedule --use-whole-schedule-line
        done
      shell: bash
    - uses: "./.github/actions/save_logs_and_results"
      if: always()
      with:
          folder: ${{ matrix.id }}
    - uses: "./.github/actions/save_regressions"
      if: always()
      with:
          folder: ${{ matrix.id }}
    - uses: "./.github/actions/stack_trace"
      if: always()