pw_build/defaults.gni

# Copyright 2020 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.

# Importing this file provides the $pw_build_defaults scope.
# This includes target-agnostic default variables. It may also includes
# target-specific default variables if $pw_target_toolchain or
# $pw_target_defaults is set (and recognized).

import("$dir_pigweed/modules.gni")

declare_args() {
  # Default configs and dependencies targets provided by the toolchain. These
  # are applied to all of the pw_* target types. They are set from a toolchain's
  # toolchain_args for cross-toolchain deps, e.g. for
  #
  #   `deps = [ //pw_some_module(//pw_toolchain:not_default) ]`
  #
  # The default toolchain is never used.
  default_configs = []
  default_public_deps = []
}

# Combine target-specifc and target-agnostic default variables.
_pw_build_defaults = {
  configs = default_configs
  public_deps = default_public_deps

  # The target-agnostic defaults.
  configs += [
    "$dir_pw_build:colorize_output",
    "$dir_pw_build:debugging",
    "$dir_pw_build:reduced_size",
    "$dir_pw_build:strict_warnings",
    "$dir_pw_build:cpp17",
  ]
  public_deps = [ "$dir_pw_polyfill:overrides" ]
}

# One more pass, to remove configs
pw_build_defaults = {
  configs = []
  forward_variables_from(_pw_build_defaults, "*", [ "remove_configs" ])
  if (defined(_pw_build_defaults.remove_configs)) {
    # Add them first to ensure they are present to be removed.
    configs += _pw_build_defaults.remove_configs
    configs -= _pw_build_defaults.remove_configs
  }
}