third_party/gn/dxc/build/system_binary_action.gni

# Copyright 2023 The Dawn 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
#
#     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.

# system_binary_action() is like action, except that it runs a system binary.
# The binary can be in PATH or in the build directory environment file (so that
# executables in the toolchain dirs are picked up).
template("system_binary_action") {
  assert(defined(invoker.args), "must set 'args' in $target_name")
  assert(defined(invoker.outputs), "must set 'outputs' in $target_name")
  assert(!defined(invoker.sources),
         "use 'inputs' instead of 'sources' in $target_name")

  action(target_name) {
    forward_variables_from(invoker,
                           [
                             "inputs",
                             "outputs",
                           ])
    script = "build/run_system_binary.py"
    args = [
             # Pass in the env file saved to the build directory that contains
             # the VC paths in it.
             "environment.$current_cpu",
           ] + invoker.args
  }
}