gn/perfetto_android_sdk.gni

# 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.

import("perfetto.gni")

# Actions defined in this file are used to generate Android.bp and Bazel
# targets, they don't produce any output during the GN build process.

template("perfetto_android_jni_library") {
  _vars_to_forward = [
    "sources",
    "deps",
    "binary_name",
    "bazel_linkopts",
    "testonly",
    "visibility",
  ]
  shared_library(target_name) {
    forward_variables_from(invoker, _vars_to_forward)
    metadata = {
      perfetto_custom_target_type = [ "perfetto_android_jni_library" ]
      perfetto_argument_binary_name = [ binary_name ]
      if (defined(bazel_linkopts)) {
        perfetto_bazel_argument_linkopts = [ bazel_linkopts ]
      }
    }
  }
}

template("perfetto_android_library") {
  _vars_to_forward = [
    "sources",
    "deps",
    "manifest",
    "android_bp_java_target_name_suffix",
    "android_bp_copy_java_target_name_suffix",
    "android_bp_copy_java_target_jarjar",
    "testonly",
    "visibility",
  ]
  action(target_name) {
    forward_variables_from(invoker, _vars_to_forward)
    out_file_name = target_name + "_stub.txt"
    out_path = "$target_gen_dir/" + out_file_name
    rebased_out_path =
        rebase_path(target_gen_dir, root_build_dir) + "/" + out_file_name
    script = "$perfetto_root_path/tools/touch_file.py"
    args = [
      "--output",
      rebased_out_path,
    ]
    outputs = [ out_path ]
    metadata = {
      perfetto_action_type_for_generator = [ "perfetto_android_library" ]
      if (defined(manifest)) {
        perfetto_android_manifest = [ get_path_info(manifest, "abspath") ]
      }
      if (defined(android_bp_java_target_name_suffix)) {
        perfetto_android_library_android_bp_java_target_name_suffix =
            [ android_bp_java_target_name_suffix ]
      }
      if (defined(android_bp_copy_java_target_name_suffix)) {
        perfetto_android_library_android_bp_copy_java_target_name_suffix =
            [ android_bp_copy_java_target_name_suffix ]
        perfetto_android_library_android_bp_copy_java_target_jarjar =
            [ get_path_info(android_bp_copy_java_target_jarjar, "abspath") ]
      }
    }
  }
}

template("perfetto_android_app") {
  _vars_to_forward = [
    "sources",
    "deps",
    "manifest",
    "resource_files_glob",
    "testonly",
    "visibility",
  ]
  action(target_name) {
    forward_variables_from(invoker, _vars_to_forward)
    out_file_name = target_name + "_stub.txt"
    out_path = "$target_gen_dir/" + out_file_name
    rebased_out_path =
        rebase_path(target_gen_dir, root_build_dir) + "/" + out_file_name
    script = "$perfetto_root_path/tools/touch_file.py"
    args = [
      "--output",
      rebased_out_path,
    ]
    outputs = [ out_path ]
    metadata = {
      perfetto_action_type_for_generator = [ "perfetto_android_app" ]
      perfetto_android_manifest = [ get_path_info(manifest, "abspath") ]
      if (defined(resource_files_glob)) {
        perfetto_android_resource_files_glob =
            [ get_path_info(resource_files_glob, "abspath") ]
      }
    }
  }
}

template("perfetto_android_instrumentation_test") {
  _vars_to_forward = [
    "app",
    "test_app",
    "android_bp_test_manifest",
    "android_bp_test_config",
    "testonly",
    "visibility",
  ]
  action(target_name) {
    forward_variables_from(invoker, _vars_to_forward)
    out_file_name = target_name + "_stub.txt"
    out_path = "$target_gen_dir/" + out_file_name
    rebased_out_path =
        rebase_path(target_gen_dir, root_build_dir) + "/" + out_file_name
    script = "$perfetto_root_path/tools/touch_file.py"
    args = [
      "--output",
      rebased_out_path,
    ]

    # Build generators ignore this 'deps' variable and read metada instead.
    # We create this variable to tell GN that this test depends on two android
    # app targets and to maintain build graph connectivity.
    deps = [
      app,
      test_app,
    ]
    outputs = [ out_path ]
    metadata = {
      perfetto_action_type_for_generator =
          [ "perfetto_android_instrumentation_test" ]
      perfetto_android_a_i_t_app = [ get_label_info(app, "label_no_toolchain") ]
      perfetto_android_a_i_t_test_app =
          [ get_label_info(test_app, "label_no_toolchain") ]
      if (defined(android_bp_test_manifest)) {
        perfetto_android_a_i_t_android_bp_test_manifest =
            [ get_path_info(android_bp_test_manifest, "abspath") ]
      }
      if (defined(android_bp_test_config)) {
        perfetto_android_a_i_t_android_bp_test_config =
            [ get_path_info(android_bp_test_config, "abspath") ]
      }
    }
  }
}