Remove out/apprtc using Cygwin for Windows bots.

copy_apprtc.py

 #!/usr/bin/python
 # Copyright 2013 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.
 
 """Moves Apprtc to the out/ directory, where the browser test can find it."""
 
 import fileinput
 import os
 import shutil
+import subprocess
 import sys
 
 import utils
 
 
 def _ConfigureApprtcServerToDeveloperMode(app_yaml_path):
   if not os.path.exists(app_yaml_path):
     return 'Expected app.yaml at %s.' % os.path.abspath(app_yaml_path)
 
   for line in fileinput.input(app_yaml_path, inplace=True):
     # We can't click past these in the firefox interop test, so
     # disable them.
     line = line.replace('BYPASS_JOIN_CONFIRMATION: false',
                         'BYPASS_JOIN_CONFIRMATION: true')
     sys.stdout.write(line)
 
 
+def RemoveDirectory(*path):
+  if utils.GetPlatform() == 'win':
+    # Allow clobbering of out dir using cygwin until crbug.com/567538 is fixed.
+    drive, path = os.path.splitdrive(os.path.abspath(path))
+    drive = drive.lower()
+    cygwin_full_path = '/cygdrive/%s%s' % (drive.lower(),

[kjellander_chromium, 2016/01/07 14:40:06]

No dir separator between the drive and path since the documentation says:

os.path.splitdrive(path)
Split the pathname path into a pair (drive, tail) where drive is either a drive
specification or the empty string. On systems which do not use drive
specifications, drive will always be the empty string. In all cases, drive +
tail will be the same as path.

[phoglund_chromium, 2016/01/07 14:43:26]

I tried on Windows, and os.path.splitdrive('C:\klas\ola') yields (r'C:',
r'\\klas\\ola'). You still need to get rid of the : from the drive. Just do
drive.lower()[0] on line 33. Also you don't need the drive.lower on line 34.

[kjellander_chromium, 2016/01/07 14:48:00]

Done.

+                                           path.replace('\\', '/'))
+
+    # Now it should be like /cygdrive/c/b/build/slave/Win7_Tester/build/src/out
+    cmd = 'c:\\cygwin\\bin\\bash --login -c "rm -rf %s"' % cygwin_full_path
+    subprocess.check_call(cmd)
+  else:
+    utils.RemoveDirectory(path)
+
+
 def main():
   target_dir = os.path.join('src', 'out', 'apprtc')
-  utils.RemoveDirectory(target_dir)
+  RemoveDirectory(target_dir)
   shutil.copytree('apprtc',
                   target_dir, ignore=shutil.ignore_patterns('.svn', '.git'))
 
   app_yaml_path = os.path.join(target_dir, 'src', 'app_engine', 'app.yaml')
   _ConfigureApprtcServerToDeveloperMode(app_yaml_path)
 
 
 if __name__ == '__main__':
   sys.exit(main())