sentry/.github/workflows/codecov_ats.yml

name: IGNORE ME codecov-ats

on:
  pull_request:

env:
  CLI_VERSION: v0.1.5

# Cancel in progress workflows on pull_requests.
# https://docs.github.com/en/actions/using-jobs/using-concurrency#example-using-a-fallback-value
concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

defaults:
  run:
    # the default default is:
    #      bash --noprofile --norc -eo pipefail {0}
    shell: bash --noprofile --norc -eo pipefail -ux {0}

jobs:
  files-changed:
    name: detect what files changed
    runs-on: ubuntu-22.04
    timeout-minutes: 3
    # Map a step output to a job output
    outputs:
      api_docs: ${{ steps.changes.outputs.api_docs }}
      backend: ${{ steps.changes.outputs.backend_all }}
      backend_dependencies: ${{ steps.changes.outputs.backend_dependencies }}
      backend_any_type: ${{ steps.changes.outputs.backend_any_type }}
      migration_lockfile: ${{ steps.changes.outputs.migration_lockfile }}
    steps:
      - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0

      - name: Check for backend file changes
        uses: dorny/paths-filter@0bc4621a3135347011ad047f9ecf449bf72ce2bd # v3.0.0
        id: changes
        with:
          token: ${{ github.token }}
          filters: .github/file-filters.yml
  coverage-ats:
    if: needs.files-changed.outputs.backend == 'true'
    needs: files-changed
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
        with:
          # fetch-depth: 0 - Use if the BASE_COMMIT on codecov_automated_test_selection is at unknown depth
          #                   (i.e. git merge-base ${{ github.sha }}^ origin/main)
          # fetch-depth: 2 - Use if the BASE_COMMIT on codecov_automated_test_selection is at known depth
          #                   (i.e. git rev-parse ${{ github.sha }}^)
          fetch-depth: 0
      - name: Set up Python 3.10.10
        uses: actions/setup-python@v4
        with:
          python-version: '3.10.10'
      # We need the setup to collect the list of tests properly
      - name: Setup sentry env
        uses: ./.github/actions/setup-sentry
        id: setup
        with:
          snuba: true
          # Right now, we run so few bigtable related tests that the
          # overhead of running bigtable in all backend tests
          # is way smaller than the time it would take to run in its own job.
          bigtable: true
          pg-version: 14
      - name: Download Codecov CLI
        run: |
          pip install --extra-index-url https://pypi.org/simple --no-cache-dir codecov-cli>=0.4.1
      # Creates the commit and report objects in codecov
      - name: Codecov startup
        run: |
          codecovcli create-commit
          codecovcli create-report
        env:
          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
      # Sends static analysis information to codecov
      - name: Static Analysis
        run: |
          codecovcli static-analysis --token=${CODECOV_STATIC_TOKEN} \
          --folders-to-exclude .artifacts \
          --folders-to-exclude .github \
          --folders-to-exclude .venv \
          --folders-to-exclude static \
          --folders-to-exclude bin
        env:
          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
          CODECOV_STATIC_TOKEN: ${{ secrets.CODECOV_STATIC_TOKEN }}
      # Run Automated Test Selection in dry mode to get the list of tests to run
      # The base commit will be the parent commit (apparently commits on master don't exist in codecov)
      - name: Codecov Automated Test Selection
        id: codecov_automated_test_selection
        run: |
          # Directory for the artifacts from this step
          mkdir .artifacts/codecov_ats
          # This is the base for the git diff BASE..HEAD
          BASE_COMMIT=$(git merge-base ${{ github.sha }}^ origin/master)
          # Get list of tests to run from Codecov
          output=$(codecovcli --codecov-yml-path=codecov.yml label-analysis --dry-run --token=${CODECOV_STATIC_TOKEN} --base-sha=${BASE_COMMIT}) || true
          # Post processing and validation
          if [ -n "${output}" ];
          then

            jq <<< $output '.runner_options + .ats_tests_to_run | @json' --raw-output > .artifacts/codecov_ats/tests_to_run.json
            jq <<< $output '.runner_options + .ats_tests_to_skip | @json' --raw-output > .artifacts/codecov_ats/tests_to_skip.json

            testcount() { jq <<< $output ".$1 | length"; }
            run_count=$(testcount ats_tests_to_run)
            skip_count=$(testcount ats_tests_to_skip)
            # Parse any potential errors that made ATS fallback to running all tests
            # And surface them
            ats_fallback_reason=$(jq <<< "$output" '.ats_fallback_reason')
            if [ "$ats_fallback_reason" == "null" ]; then
              ats_success=true
            else
              ats_success=false
            fi
            tee <<< \
              "{\"ats_success\": $ats_success, \"error\": $ats_fallback_reason, \"tests_to_run\": $run_count, \"tests_analyzed\": $((run_count+skip_count))}" \
              "$GITHUB_STEP_SUMMARY" \
              ".artifacts/codecov_ats/result.json"
          else
            # We need not forget to add the search options in the fallback command, otherwise pytest might run more tests than expected
            # These search options match what's defined in codecov.yml:105
            jq '@json' --raw-output <<< '[
              "--cov-context=test",
              "tests/sentry",
              "tests/integration",
              "--ignore=tests/sentry/eventstream/kafka",
              "--ignore=tests/sentry/post_process_forwarder",
              "--ignore=tests/sentry/snuba",
              "--ignore=tests/sentry/search/events",
              "--ignore=tests/sentry/ingest/ingest_consumer/test_ingest_consumer_kafka.py",
              "--ignore=tests/sentry/region_to_control/test_region_to_control_kafka.py"
            ]' > .artifacts/codecov_ats/tests_to_skip.json
            echo '[]' > .artifacts/codecov_ats/tests_to_run.json
            # If we reached this point it means that ATS failed with some error
            tee <<< '{"ats_success": false, "error": "exception_raised"}' "$GITHUB_STEP_SUMMARY" ".artifacts/codecov_ats/result.json"
          fi
        env:
          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
          CODECOV_STATIC_TOKEN: ${{ secrets.CODECOV_STATIC_TOKEN }}
      - uses: actions/upload-artifact@v3
        with:
          name: codecov_ats
          path: .artifacts/codecov_ats
          if-no-files-found: error
  # The actual running of tests would come here, after the labels are available
  # Something like pytest <options> $ATS_TESTS_TO_RUN
  debug:
    runs-on: ubuntu-latest
    needs:
      - coverage-ats
      - files-changed
    # Avoids running this job if it's a frontend change
    # It would fail if the coverage-ats step didn't run
    if: needs.files-changed.outputs.backend == 'true'
    steps:
      - uses: actions/download-artifact@v3
        with:
          name: codecov_ats
          path: .artifacts
      - name: Debug ATS_TESTS_TO_RUN
        run: |
          length_of_tests=$(cat .artifacts/tests_to_run.json | jq 'length')
          # The 1st value doesn't count, it's '--cov-context=test' (hence -gt 1)
          if [ $length_of_tests -gt 1 ]; then
            echo "Running $length_of_tests tests"
            # --raw-output0 doesn't work.
            cat .artifacts/tests_to_run.json | jq 'join("\u0000")' --raw-output | tr -d '\n' | xargs -r0 echo 'pytest'
          else
            echo "No tests to run"
          fi
      - name: Debug ATS_TESTS_TO_SKIP
        run: |
          length_of_tests=$(cat .artifacts/tests_to_skip.json | jq 'length')
          # The 1st value doesn't count, it's '--cov-context=test'
          if [ $length_of_tests -gt 1 ]; then
            echo "Running $length_of_tests tests"
            # --raw-output0 doesn't work.
            cat .artifacts/tests_to_skip.json | jq 'join("\u0000")' --raw-output | tr -d '\n' | xargs -r0 echo 'pytest'
          else
            echo "No tests to run"
          fi