# Copyright 2020 The Fuchsia 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/dist/resource.gni")
import("//sdk/cts/build/cts_element.gni")
import("//sdk/cts/build/write_cts_file.gni")

# A resource that can be used in CTS.
#
# An equivalent to the in-tree `resource`, but ensures dependencies are allowed
# in CTS.
#
# Example:
# ```
# cts_resource("my-bin") {
#  sources = [ "test_bins/my_bin" ]
#  outputs = [ "bin/my_bin" ]
# }
# ```
#
# Parameters
#   outputs
#     Required: List of one runtime path.  This must be a relative path (no
#     leading `/`).  It can use placeholders based on $sources; see copy()
#     and `gn help source_expansion`.
#     Type: list(path)
#
#   sources
#     Required: List of files in the source tree or build that become $outputs.
#     See copy() for details.
#     Type: list(file)
#
# See resource() for other parameters.
#
template("cts_resource") {
  assert(defined(invoker.sources), "Sources must be defined.")

  if (defined(invoker.deps) && invoker.deps != []) {
    cts_element("${target_name}_verify_deps") {
      deps = invoker.deps
      invoker_label = get_label_info(invoker.target_name, "label_no_toolchain")
    }
  }

  resource(target_name) {
    forward_variables_from(invoker, "*")
    if (defined(deps) && deps != []) {
      deps += [ ":${target_name}_verify_deps" ]
    }
  }

  write_cts_file(target_name) {
  }
}