# Copyright 2023 The Dawn & Tint Authors
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
#    list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
#    this list of conditions and the following disclaimer in the documentation
#    and/or other materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its
#    contributors may be used to endorse or promote products derived from
#    this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
# CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# cmake_configure_file implements CMake's 'configure_file':
# https://cmake.org/cmake/help/latest/command/configure_file.html
#
# Unlike CMake, that replaces variables defined in the input file with those
# currently set in the CMake exceution environment, we must provide the
# values for each variable explicitly via the 'values' array.
template("cmake_configure_file") {
  assert(defined(invoker.input), "must set 'input'")
  assert(defined(invoker.output), "must set 'output'")
  assert(defined(invoker.values), "must set 'values'")

  action(target_name) {
    script = "${invoker.dawn_dxc_gn_dir}/dxc/build/cmake_configure_file.py"
    sources = [ invoker.input ]
    outputs = [ invoker.output ]
    args = [
             rebase_path(invoker.input, root_build_dir),
             rebase_path(invoker.output, root_build_dir),
           ] + invoker.values
  }
}