# Copyright 2021 The Pigweed Authors
#
# 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
#
#     https://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("//build_overrides/pigweed.gni")

import("$dir_pw_build/target_types.gni")
import("$dir_pw_docgen/docs.gni")
import("googletest.gni")

# This file defines a GN source_set for an external installation of googletest.
# To use, checkout the googletest source into a directory, then set the build
# arg dir_pw_third_party_googletest to point to that directory. The googletest
# library will be available in GN at "$dir_pw_third_party/googletest".
if (dir_pw_third_party_googletest != "") {
  config("includes") {
    include_dirs = [
      "$dir_pw_third_party_googletest/googletest",
      "$dir_pw_third_party_googletest/googletest/include",
      "$dir_pw_third_party_googletest/googlemock",
      "$dir_pw_third_party_googletest/googlemock/include",
    ]

    # Fix some compiler warnings.
    cflags = [
      "-Wno-undef",
      "-Wno-conversion",
      "-Wno-switch-enum",
    ]
  }

  pw_source_set("googletest") {
    public_configs = [ ":includes" ]
    public = [
      "$dir_pw_third_party_googletest/googlemock/include/gmock/gmock.h",
      "$dir_pw_third_party_googletest/googletest/include/gtest/gtest-spi.h",
      "$dir_pw_third_party_googletest/googletest/include/gtest/gtest.h",
    ]

    # Only add the "*-all.cc" files (and no headers) to improve maintainability
    # from upstream refactoring. The "*-all.cc" files include the respective
    # source files.
    sources = [
      "$dir_pw_third_party_googletest/googlemock/src/gmock-all.cc",
      "$dir_pw_third_party_googletest/googletest/src/gtest-all.cc",
    ]
  }

  pw_source_set("gtest_main") {
    public_deps = [ ":googletest" ]
    sources = [ "$dir_pw_third_party_googletest/googletest/src/gtest_main.cc" ]
  }

  pw_source_set("gmock_main") {
    public_deps = [ ":googletest" ]
    sources = [ "$dir_pw_third_party_googletest/googlemock/src/gmock_main.cc" ]
  }

  # Alias that matches the Bazel target, i.e. "@com_google_googletest//:gtest".
  # This is needed by some third party deps generated from Bazel, e.g. FuzzTest.
  group("gtest") {
    public_deps = [ ":googletest" ]
  }
} else {
  group("googletest") {
  }
}

pw_doc_group("docs") {
  sources = [ "docs.rst" ]
}