Add a snapshot of flutter/engine/src/build to our sdk

build/config/mac/mac_app.py

Index: build/config/mac/mac_app.py
diff --git a/build/config/mac/mac_app.py b/build/config/mac/mac_app.py
new file mode 100644
index 0000000000000000000000000000000000000000..909fa583e641581186bfd749059025323fadf1b5
--- /dev/null
+++ b/build/config/mac/mac_app.py
@@ -0,0 +1,113 @@
+#!/usr/bin/python
+# Copyright (c) 2015 The Chromium 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 argparse
+import os
+import errno
+import subprocess
+import sys
+
+PLUTIL = [
+  '/usr/bin/env',
+  'xcrun',
+  'plutil'
+]
+
+IBTOOL = [
+  '/usr/bin/env',
+  'xcrun',
+  'ibtool',
+]
+
+
+def MakeDirectories(path):
+  try:
+    os.makedirs(path)
+  except OSError as exc:
+    if exc.errno == errno.EEXIST and os.path.isdir(path):
+      return 0
+    else:
+      return -1
+
+  return 0
+
+
+def ProcessInfoPlist(args):
+  output_plist_file = os.path.abspath(os.path.join(args.output, 'Info.plist'))
+  return subprocess.check_call( PLUTIL + [
+    '-convert',
+    'binary1',
+    '-o',
+    output_plist_file,
+    '--',
+    args.input,
+  ])
+
+
+def ProcessNIB(args):
+  output_nib_file = os.path.join(os.path.abspath(args.output),
+      "%s.nib" % os.path.splitext(os.path.basename(args.input))[0])
+
+  return subprocess.check_call(IBTOOL + [
+    '--module',
+    args.module,
+    '--auto-activate-custom-fonts',
+    '--target-device',
+    'mac',
+    '--compile',
+    output_nib_file,
+    os.path.abspath(args.input),
+  ])
+
+
+def GenerateProjectStructure(args):
+  application_path = os.path.join( args.dir, args.name + ".app", "Contents" )
+  return MakeDirectories( application_path )
+
+
+def Main():
+  parser = argparse.ArgumentParser(description='A script that aids in '
+                                   'the creation of an Mac application')
+
+  subparsers = parser.add_subparsers()
+
+  # Plist Parser
+
+  plist_parser = subparsers.add_parser('plist',
+                                       help='Process the Info.plist')
+  plist_parser.set_defaults(func=ProcessInfoPlist)
+  
+  plist_parser.add_argument('-i', dest='input', help='The input plist path')
+  plist_parser.add_argument('-o', dest='output', help='The output plist dir')
+
+  # NIB Parser
+
+  plist_parser = subparsers.add_parser('nib',
+                                       help='Process a NIB file')
+  plist_parser.set_defaults(func=ProcessNIB)
+  
+  plist_parser.add_argument('-i', dest='input', help='The input nib path')
+  plist_parser.add_argument('-o', dest='output', help='The output nib dir')
+  plist_parser.add_argument('-m', dest='module', help='The module name')
+
+  # Directory Structure Parser
+
+  dir_struct_parser = subparsers.add_parser('structure',
+                      help='Creates the directory of an Mac application')
+
+  dir_struct_parser.set_defaults(func=GenerateProjectStructure)
+
+  dir_struct_parser.add_argument('-d', dest='dir', help='Out directory')
+  dir_struct_parser.add_argument('-n', dest='name', help='App name')
+
+  # Engage!
+
+  args = parser.parse_args()
+
+  return args.func(args)
+
+
+if __name__ == '__main__':
+  sys.exit(Main())