patch from chinmaygarde@ to make progress on mac, ios.

build/config/ios/ios_sim.py

+#!/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 errno
+import os
+import subprocess
+import sys
+import re
+
+SIMCTL_PATH = [
+  '/usr/bin/env',
+  'xcrun',
+  'simctl',
+]
+
+PLIST_BUDDY_PATH = [
+  '/usr/bin/env',
+  'xcrun',
+  'PlistBuddy',
+]
+
+
+def ApplicationIdentifier(path):
+  identifier = subprocess.check_output(PLIST_BUDDY_PATH + [
+    '-c',
+    'Print CFBundleIdentifier',
+    '%s/Info.plist' % path,
+  ])
+  return identifier.strip()
+
+
+def Install(args):
+  return subprocess.check_call(SIMCTL_PATH + [
+    'install',
+    'booted',
+    args.path,
+  ])
+
+
+def InstallLaunchAndWait(args, wait):
+  res = Install(args)
+
+  if res != 0:
+    return res
+
+  identifier = ApplicationIdentifier(args.path)
+
+  launch_args = [ 'launch' ]
+
+  if wait:
+    launch_args += [ '-w' ]
+
+  launch_args += [
+    'booted',
+    identifier,
+  ]
+
+  return subprocess.check_output(SIMCTL_PATH + launch_arg).strip()
+
+
+def Launch(args):
+  InstallLaunchAndWait(args, False)
+
+
+def Debug(args):
+  launch_res = InstallLaunchAndWait(args, True)
+  launch_pid = re.search('.*: (\d+)', launch_res).group(1)
+  return os.system(' '.join([
+    '/usr/bin/env',
+    'xcrun',
+    'lldb',
+    '-s',
+    os.path.join(os.path.dirname(__file__), 'lldb_start_commands.txt'),
+    '-p',
+    launch_pid,
+  ]))
+
+
+def main():
+  parser = argparse.ArgumentParser(description='A script that launches an'
+                                   ' application in the simulator and attaches'
+                                   ' the debugger to the same')
+
+  parser.add_argument('-p', dest='path', required=True,
+                      help='Path the the simulator application')
+
+  subparsers = parser.add_subparsers()
+
+  launch_parser = subparsers.add_parser('launch', help='Launch')
+  launch_parser.set_defaults(func=Launch)
+
+  install_parser = subparsers.add_parser('install', help='Install')
+  install_parser.set_defaults(func=Install)
+
+  debug_parser = subparsers.add_parser('debug', help='Debug')
+  debug_parser.set_defaults(func=Debug)
+
+  args = parser.parse_args()
+  return args.func(args)
+
+
+if __name__ == '__main__':
+  sys.exit(main())