# Copyright 2013 The Flutter 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("//flutter/build/dart/dart.gni")
import("//flutter/build/dart/internal/gen_executable_call.gni")
import("//flutter/common/config.gni")

# Generates an executable that runs `dart` with a command and set of arguments.
#
# Parameters:
#   args (optional):
#     Arguments to pass to the Dart CLI.
#
#   cwd (optional):
#     The working directory for the command.
#
#   output (optional):
#     Overrides the full output path.
#     Defaults to $root_out_dir/gen/$target_path/$target_name; for example
#     //flutter/foo/bar emits a binary at out/{variant}/gen/flutter/foo/bar.
template("gen_dartcli_call") {
  # Build a reference to the Dart CLI (depending on prebuilt or source).
  ext = ""
  if (is_win) {
    ext = ".exe"
  }
  if (flutter_prebuilt_dart_sdk) {
    dart = rebase_path("$host_prebuilt_dart_sdk/bin/dart$ext")
  } else {
    dart = rebase_path("$root_out_dir/dart-sdk/bin/dart$ext")
  }

  # Add default arguments to the Dart CLI.
  # TODO(https://github.com/flutter/flutter/issues/156171): --suppress-analytics
  dart_args = []
  if (defined(invoker.args)) {
    dart_args += invoker.args
  }

  # Actually generate the shell script.
  gen_executable_call(target_name) {
    command = rebase_path(dart)
    args = dart_args
    forward_variables_from(invoker,
                           [
                             "cwd",
                             "output",
                             "metadata",
                             "testonly",
                             "visibility",
                           ])
  }
}