# Copyright (C) 2025 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

# This workflow is triggered by analyze.yml
name: Perfetto CI [linux]
on:
  workflow_call:
env:
  # /tmp/cache contains {ccache, bazelcache} and generally any other cache
  # that should be persisted across jobs, but only updated from the main
  # branch. This is populated by the "Restore cache" step below.
  PERFETTO_CACHE_DIR: /tmp/cache
  PERFETTO_ARTIFACTS_ROOT: /tmp/artifacts
  PYTHONUNBUFFERED: 1
jobs:
  linux:
    runs-on: self-hosted
    timeout-minutes: 45
    strategy:
      fail-fast: false  # Don't cancel all jobs if one fails (to detect flakes).
      matrix:
        config:
          - name: clang-x86_64-debug
            PERFETTO_TEST_GN_ARGS: 'is_debug=true is_hermetic_clang=false non_hermetic_clang_stdlib=\"libc++\" enable_perfetto_merged_protos_check=true cc_wrapper=\"ccache\"'
            PERFETTO_INSTALL_BUILD_DEPS_ARGS: ''
          - name: clang-x86_64-tsan
            PERFETTO_TEST_GN_ARGS: 'is_debug=false is_tsan=true cc_wrapper=\"ccache\"'
            PERFETTO_INSTALL_BUILD_DEPS_ARGS: ''
          - name: clang-x86_64-msan
            PERFETTO_TEST_GN_ARGS: 'is_debug=false is_msan=true cc_wrapper=\"ccache\"'
            PERFETTO_INSTALL_BUILD_DEPS_ARGS: ''
          - name: clang-x86_64-asan_lsan
            PERFETTO_TEST_GN_ARGS: 'is_debug=false is_asan=true is_lsan=true cc_wrapper=\"ccache\"'
            PERFETTO_INSTALL_BUILD_DEPS_ARGS: ''
          - name: clang-x86-release
            PERFETTO_TEST_GN_ARGS: 'is_debug=false target_cpu=\"x86\" cc_wrapper=\"ccache\"'
            PERFETTO_INSTALL_BUILD_DEPS_ARGS: ''
          - name: gcc9-x86_64-release
            PERFETTO_TEST_GN_ARGS: 'is_debug=false is_clang=false enable_perfetto_grpc=true cc=\"gcc-9\" cxx=\"g++-9\" cc_wrapper=\"ccache\" enable_perfetto_llvm_symbolizer=true'
            PERFETTO_INSTALL_BUILD_DEPS_ARGS: '--grpc'
    env:
      PERFETTO_CI_BUILD_CACHE_KEY: build-cache-${{ matrix.config.name }}
      PERFETTO_CI_JOB_ID: gh-${{ github.run_id }}-${{ matrix.config.name }}
    steps:
      - uses: actions/checkout@v5

      - name: Setup artifacts
        shell: bash
        run: |
          PERFETTO_ARTIFACTS_DIR=$PERFETTO_ARTIFACTS_ROOT/$PERFETTO_CI_JOB_ID
          echo "PERFETTO_ARTIFACTS_DIR=$PERFETTO_ARTIFACTS_DIR" >> $GITHUB_ENV
          mkdir -p $PERFETTO_ARTIFACTS_DIR

      - name: Restore cache
        uses: ./.github/actions/cache-on-google-cloud-storage/restore
        with:
          directory: ${{ env.PERFETTO_CACHE_DIR }}
          cache_key: ${{ env.PERFETTO_CI_BUILD_CACHE_KEY }}

      - name: Setup ccache
        uses: ./.github/actions/setup-ccache

      - uses: ./.github/actions/install-build-deps
        with:
          install-flags: ${{ matrix.config.PERFETTO_INSTALL_BUILD_DEPS_ARGS }}

      - name: Run GN
        env:
          # We hop through this env var to preserve quote escaping.
          GN_ARGS: ${{ matrix.config.PERFETTO_TEST_GN_ARGS }}
        shell: bash
        run: tools/gn gen out/dist --args="${{ env.GN_ARGS }}" --check

      - name: Build
        shell: bash
        run: tools/ninja -C out/dist

      - name: Print ccache stats
        shell: bash
        run: ccache --show-stats

      - name: setup symbolizer paths
        shell: bash
        run: |
          if [[ -e buildtools/linux64/clang/bin/llvm-symbolizer ]]; then
            echo "ASAN_SYMBOLIZER_PATH=$(readlink -f buildtools/linux64/clang/bin/llvm-symbolizer)" >> $GITHUB_ENV
            echo "MSAN_SYMBOLIZER_PATH=$(readlink -f buildtools/linux64/clang/bin/llvm-symbolizer)" >> $GITHUB_ENV
          fi

      - name: perfetto_unittests
        shell: bash
        run: out/dist/perfetto_unittests --gtest_shuffle

      - name: perfetto_integrationtests
        shell: bash
        run: out/dist/perfetto_integrationtests

      - name: trace_processor_minimal_smoke_tests
        shell: bash
        run: out/dist/trace_processor_minimal_smoke_tests

      - name: Find trace_processor_shell
        shell: bash
        run: |
          # If this is a split host+target build, use the trace_processor_shell
          # binary from the host directory. In some cases (e.g. lsan x86 builds)
          # the host binary that is copied into the target directory cannot run
          # because depends on libc++.so within the same folder (which is built
          # using target bitness, not host bitness).
          HOST_OUT_PATH=out/dist/gcc_like_host
          if [ ! -f $HOST_OUT_PATH/trace_processor_shell ]; then
            HOST_OUT_PATH=out/dist
          fi
          echo "HOST_OUT_PATH=$HOST_OUT_PATH" >> $GITHUB_ENV

      - name: TraceProcessor diff tests
        # These are essentially a TraceProcessor C++ tests, we run them in all configs.
        shell: bash
        run: |
          mkdir -p "$PERFETTO_ARTIFACTS_DIR/perf"
          source .venv/bin/activate
          tools/diff_test_trace_processor.py \
            --perf-file=$PERFETTO_ARTIFACTS_DIR/perf/tp-perf-all.json \
            $HOST_OUT_PATH/trace_processor_shell

      - name: TraceProcessor python tests
        # These are a Python API tests, not C++ tests, so we run them only in a single config.
        if: ${{ matrix.config.name == 'clang-x86_64-debug' }}
        shell: bash
        run: .venv/bin/python3 python/run_tests.py $HOST_OUT_PATH

      - name: perfetto_benchmarks (functional-only)
        if: ${{ !(contains(matrix.config.name, 'msan') || contains(matrix.config.name, 'tsan')) }}
        shell: bash
        run: |
          # Don't run benchmarks under x86 (running out of address space because
          # of 4GB) limit or debug (too slow and pointless).
          HOST_CPU="$(tools/gn args --short --list=host_cpu out/dist | awk '{print $3}' | sed -e 's/^"//' -e 's/"$//')"
          TARGET_CPU="$(tools/gn args --short --list=target_cpu out/dist | awk '{print $3}' | sed -e 's/^"//' -e 's/"$//')"
          IS_DEBUG="$(tools/gn args --short --list=is_debug out/dist | awk '{print $3}')"
          if [[ !("$TARGET_CPU" == "x86" || ("$TARGET_CPU" == "" && "$HOST_CPU" == "x86")) && "$IS_DEBUG" == "false" ]]; then
            BENCHMARK_FUNCTIONAL_TEST_ONLY=true out/dist/perfetto_benchmarks
          fi

      - name: Upload artifacts to GCS
        if: ${{ always() }}
        env:
          GCS_PATH: gs://perfetto-ci-artifacts
        shell: bash
        run: |
          if [[ ! -d "$PERFETTO_ARTIFACTS_DIR" || -n "$(find $PERFETTO_ARTIFACTS_DIR -maxdepth 0 -empty)" ]]; then
            echo "Directory '$PERFETTO_ARTIFACTS_DIR' is empty. Did one of the previous steps fail?"
            # Don't fail the step if there is nothing to upload.
            exit 0
          fi
          gcloud storage cp --recursive "$PERFETTO_ARTIFACTS_DIR" "$GCS_PATH/$PERFETTO_CI_JOB_ID"

      - name: Update cache (if on main)
        if: github.ref == 'refs/heads/main'
        uses: ./.github/actions/cache-on-google-cloud-storage/save
        with:
          directory: ${{ env.PERFETTO_CACHE_DIR }}
          cache_key: ${{ env.PERFETTO_CI_BUILD_CACHE_KEY }}