third_party/fuchsia-gn-sdk/src/gn_configs.gni

declare_args() {
  if (!defined(gn_configs_path)) {
    gn_configs_path = "//build/config/fuchsia/gn_configs.gni"
  }
}

import(gn_configs_path)

# Allows gn_configs_path above to explicitly override the following parameters.

# The target API level for this repository. Embedders should override this value
# to specify the API level the packages produced from this repository should be
# targeting, e.g. in their top-level //.gn file or gn_configs.gni.
# Fuchsia-sdk decides the supported api-levels.
if (!defined(fuchsia_target_api_level)) {
  fuchsia_target_api_level = 29
}

# The SDK manifest file. This is useful to include as a dependency for some
# targets in order to cause a rebuild when the version of the SDK is changed.
if (!defined(fuchsia_sdk_manifest_file)) {
  fuchsia_sdk_manifest_file = "${fuchsia_sdk}/meta/manifest.json"
}

# fuchsia_tool_dir is used to specify the directory in the SDK to locate tools
# for the host cpu architecture. If the host_cpu is not recognized, then tool
# dir defaults to x64.
if (!defined(fuchsia_tool_dir)) {
  fuchsia_tool_dir = "${fuchsia_sdk}/tools/${host_cpu}"
}

# ID uniquely identifying the Fuchsia IDK build. This is exposed as a property
# so it can be used to locate images and packages on GCS and as a marker to
# indicate the "version" of the IDK.
# Defaults to the id found in the manifest.json file of the SDK.
if (!defined(fuchsia_sdk_id)) {
  _meta = read_file(fuchsia_sdk_manifest_file, "json")
  fuchsia_sdk_id = _meta.id
}

if (!defined(fuchsia_arch_root)) {
  if (current_cpu != "") {
    # According to
    # https://gn.googlesource.com/gn/+/main/docs/cross_compiles.md#as-a-build_gn-author,
    # current_cpu is preferred.
    fuchsia_arch_root = current_cpu
  } else {
    fuchsia_arch_root = target_cpu
  }
  fuchsia_arch_root =
      "${fuchsia_sdk}/obj/${fuchsia_arch_root}-api-${fuchsia_target_api_level}"
}