components/cronet/BUILD.gn

# Copyright 2017 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

import("//build/buildflag_header.gni")
import("//build/toolchain/toolchain.gni")
import("//build/util/lastchange.gni")
import("//build/util/process_version.gni")
import("//build/util/version.gni")
import("//components/cronet/native/include/headers.gni")
import("//components/grpc_support/include/headers.gni")
import("//testing/test.gni")

declare_args() {
  # If set to true, this will remove histogram manager to reduce binary size.
  disable_histogram_support = is_mac || is_win
}

# Disable histogram support is not allowed on Android.
assert(!disable_histogram_support || !is_android)

buildflag_header("cronet_buildflags") {
  header = "cronet_buildflags.h"
  flags = [ "DISABLE_HISTOGRAM_SUPPORT=$disable_histogram_support" ]
}

process_version("cronet_version_header") {
  template_file = "//components/cronet/version.h.in"
  sources = [ "//chrome/VERSION" ]
  output = "$target_gen_dir/version.h"
  extra_args = [
    "-e",
    "VERSION_FULL=\"%s.%s.%s.%s\" % (MAJOR,MINOR,BUILD,PATCH)",
  ]
}

# Cronet common implementation.
source_set("cronet_common") {
  sources = [
    "cronet_global_state.h",
    "cronet_prefs_manager.cc",
    "cronet_prefs_manager.h",
    "cronet_upload_data_stream.cc",
    "cronet_upload_data_stream.h",
    "cronet_url_request.cc",
    "cronet_url_request.h",
    "cronet_url_request_context.cc",
    "cronet_url_request_context.h",
    "histogram_manager.cc",
    "histogram_manager.h",
    "host_cache_persistence_manager.cc",
    "host_cache_persistence_manager.h",
    "stale_host_resolver.cc",
    "stale_host_resolver.h",
    "url_request_context_config.cc",
    "url_request_context_config.h",
  ]
  deps = [
    ":cronet_buildflags",
    ":cronet_version_header",
    "//base",
    "//components/metrics:metrics",
    "//components/prefs:prefs",
    "//net",
    "//third_party/metrics_proto",
  ]

  if (disable_histogram_support) {
    sources -= [
      "histogram_manager.cc",
      "histogram_manager.h",
    ]
    deps -= [
      "//components/metrics:metrics",
      "//third_party/metrics_proto",
    ]
  }
}

source_set("metrics_util") {
  sources = [
    "metrics_util.cc",
    "metrics_util.h",
  ]
  deps = [ "//base" ]
}

# Unit tests for Cronet common implementation.
source_set("cronet_common_unittests") {
  testonly = true

  deps = [
    ":cronet_common",
    "//components/prefs:test_support",
    "//net:test_support",
  ]

  sources = [
    "histogram_manager_unittest.cc",
    "host_cache_persistence_manager_unittest.cc",
    "stale_host_resolver_unittest.cc",
    "url_request_context_config_unittest.cc",
  ]

  if (disable_histogram_support) {
    sources -= [ "histogram_manager_unittest.cc" ]
  }
}

# For platforms on which the native Cronet library is used, build the library,
# a cronet_tests binary that exercises it, and a unit-tests binary.
# Android and iOS have their own platform-specific rules to build Cronet.
if (is_android) {
  group("cronet_package") {
    testonly = true
    deps = [ "//components/cronet/android:cronet_package_android" ]
  }
} else if (is_ios) {
  group("cronet_package") {
    deps = [ "//components/cronet/ios:cronet_package_ios" ]
  }
} else {
  config("shared_library_public_config") {
    if (is_mac && !is_component_build) {
      # Executable targets that depend on the shared libraries below need to have
      # the rpath setup in non-component build configurations.
      ldflags = [
        "-rpath",
        "@executable_path/",
      ]
    }
  }

  _cronet_shared_lib_name = "cronet.$chrome_version_full"
  _cronet_shared_lib_file_name =
      "$shlib_prefix$_cronet_shared_lib_name$shlib_extension"

  shared_library("cronet") {
    output_name = _cronet_shared_lib_name

    deps = [
      "//base",
      "//components/cronet:cronet_common",
      "//components/cronet/native:cronet_native_impl",
      "//net",
    ]

    sources = [ "cronet_global_state_stubs.cc" ]

    if (is_mac && !is_component_build) {
      ldflags = [
        "-install_name",
        "@executable_path/$_cronet_shared_lib_file_name",
      ]
      public_configs = [ ":shared_library_public_config" ]
    }
  }

  test("cronet_tests") {
    deps = [
      ":cronet_common",
      "//base",
      "//base/test:test_support",
      "//components/cronet/native:cronet_native_impl",
      "//components/cronet/native/test:cronet_native_tests",
      "//net",
    ]

    sources = [
      "cronet_global_state_stubs.cc",
      "run_all_unittests.cc",
    ]

    defines = [ "CRONET_TESTS_IMPLEMENTATION" ]

    if (is_linux && !is_component_build) {
      public_configs = [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
    }
  }

  test("cronet_unittests") {
    deps = [
      ":cronet_common",
      ":cronet_common_unittests",
      "//base",
      "//base/test:test_support",
      "//components/cronet/native:cronet_native_unittests",
      "//net",
    ]

    sources = [
      "cronet_global_state_stubs.cc",
      "run_all_unittests.cc",
    ]
  }

  _package_dir = "$root_out_dir/cronet"

  # Generate LICENSE file by recursively joining all dependent licenses.
  action("generate_license") {
    _license_path = "$_package_dir/LICENSE"

    script = "//tools/licenses.py"
    inputs = [ lastchange_file ]
    outputs = [ _license_path ]
    args = [
      "license_file",
      rebase_path(_license_path, root_build_dir),
      "--gn-target",
      "//components/cronet:cronet",
      "--gn-out-dir",
      ".",
    ]
  }

  # Copy boiler-plate files into the package.
  copy("cronet_package_copy") {
    sources = [
      "${root_out_dir}${shlib_subdir}/${_cronet_shared_lib_file_name}",
      "//AUTHORS",
      "//chrome/VERSION",
    ]
    deps = [ ":cronet" ]
    outputs = [ "$_package_dir/{{source_file_part}}" ]
  }

  # Copy headers.
  copy("cronet_package_headers") {
    sources = cronet_native_public_headers + grpc_public_headers

    outputs = [ "$_package_dir/include/{{source_file_part}}" ]
  }

  group("cronet_package") {
    deps = [
      ":cronet_package_copy",
      ":cronet_package_headers",
      ":generate_license",
    ]
  }

  executable("cronet_native_perf_test") {
    testonly = true
    sources = [
      "native/perftest/main.cc",
      "native/perftest/perf_test.cc",
    ]
    deps = [
      "//base",
      "//components/cronet",
      "//components/cronet/native:cronet_native_headers",
      "//components/cronet/native/test:cronet_native_tests",
      "//components/cronet/native/test:cronet_native_testutil",
      "//net:test_support",
    ]
  }

  executable("cronet_sample") {
    testonly = true
    sources = [
      "native/sample/main.cc",
      "native/sample/sample_executor.cc",
      "native/sample/sample_executor.h",
      "native/sample/sample_url_request_callback.cc",
      "native/sample/sample_url_request_callback.h",
    ]
    deps = [
      "//components/cronet",
      "//components/cronet/native:cronet_native_headers",
    ]
    if (is_linux && !is_component_build) {
      public_configs = [ "//build/config/gcc:rpath_for_built_shared_libraries" ]
    }
  }

  test("cronet_sample_test") {
    sources = [ "native/sample/test/sample_test.cc" ]
    deps = [
      ":cronet_sample",
      "//testing/gtest:gtest",
    ]
  }
}