Remove out/apprtc using Cygwin for Windows bots.

copy_apprtc.py

Index: copy_apprtc.py
diff --git a/copy_apprtc.py b/copy_apprtc.py
index ca4750ed4a6ca11c88e696087584ec23c45c28ee..27508abf2f6d01ce4101b28654625381e0efc847 100755
--- a/copy_apprtc.py
+++ b/copy_apprtc.py
@@ -8,6 +8,7 @@
 import fileinput
 import os
 import shutil
+import subprocess
 import sys
 
 import utils
@@ -25,9 +26,26 @@ def _ConfigureApprtcServerToDeveloperMode(app_yaml_path):
     sys.stdout.write(line)
 
 
+def RemoveDirectoryWithCygwinRmIfWindows(*path):

[phoglund_chromium, 2016/01/07 14:31:47]

This name is misleading since it implies it only deletes on Windows. Just call
it RemoveDirectory.

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

Done.

+  if utils.GetPlatform() == 'win':
+    # Allow clobbering of out dir using cygwin until crbug.com/567538 is fixed.
+    full_path = os.path.abspath(path)
+
+    # full_path is something like C:\b\build\slave\Win7_Tester\build\src\out
+    full_path = full_path[0].lower() + full_path[1:]  # c:\b\...

[phoglund_chromium, 2016/01/07 14:31:47]

This is alright, but you can use splitdrive to make it a bit cleaner.

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

Of course! Much better now.

+    full_path = full_path.replace(':', '')  # c\b\...
+    cygwin_full_path = '/cygdrive/' + full_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)
+  RemoveDirectoryWithCygwinRmIfWindows(target_dir)
   shutil.copytree('apprtc',
                   target_dir, ignore=shutil.ignore_patterns('.svn', '.git'))