# Copyright 2023 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("//sdk/config.gni")

import("//build/sdk/config.gni")

# Verifies that the contents of the IDK have not changed.
#
# Parameters
#
#   golden (required)
#     Path to the golden file listing the current IDK contents.
#
#   idk_exported_label (required)
#     Label for the `idk` build rule.
#
#   idk_name (required)
#     Name of the IDK, i.e., the directory name under $root_build_dir/sdk/exported
#
#   inherit_golden (optional)
#     Path to a golden file that `golden` can be thought of as "extending". The
#     golden file we compare to will effectively be the concatenation of `golden`
#     and `inherit_golden`, if the latter is supplied.
#
template("sdk_final_manifest_golden") {
  assert(defined(invoker.golden), "Must provide path to golden file")
  assert(defined(invoker.idk_exported_label),
         "Must provide GN label for the final IDK")
  assert(defined(invoker.idk_name), "Must provide the name of the IDK")

  action(target_name) {
    forward_variables_from(invoker, [ "testonly" ])

    script = "//build/sdk/verify_final_manifest.py"

    _manifest_path =
        "$root_build_dir/sdk/exported/${invoker.idk_name}/meta/manifest.json"
    inputs = [ _manifest_path ]
    args = [
      "--manifest",
      rebase_path(_manifest_path, root_build_dir),
    ]

    inputs += [ invoker.golden ]
    args += [
      "--golden",
      rebase_path(invoker.golden, root_build_dir),
    ]

    if (defined(invoker.inherit_golden)) {
      inputs += [ invoker.inherit_golden ]
      args += [
        "--inherit_golden",
        rebase_path(invoker.inherit_golden, root_build_dir),
      ]
    }

    if (!sdk_cross_compile_host_tools) {
      args += [
        "--only_verify_host_tools_for_cpu",
        host_cpu,
      ]
    }

    outputs = [ "$target_gen_dir/${target_name}.updated_golden" ]
    args += [
      "--updated_golden",
      rebase_path(outputs[0], root_build_dir),
    ]

    args += [
      "--label",
      get_label_info(":${target_name}", "label_with_toolchain"),
    ]

    deps = [ invoker.idk_exported_label ]
  }
}