Fix pulling in patches from git subrepos

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@112765 0039d316-1c4b-4281-b951-d872f2087c98

git_cl.py

@@ -500,7 +500,7 @@ or verify this branch is set up to track another (via the --track argument to
     name = RunCommand(['git', 'rev-parse', 'HEAD']).strip()
     # Need to pass a relative path for msysgit.
     try:
-      files = scm.GIT.CaptureStatus([root], upstream_branch)
+      files = scm.GIT.CaptureStatus(root, [root], upstream_branch)
     except subprocess2.CalledProcessError:
       DieWithError(
           ('\nFailed to diff against upstream branch %s!\n\n'

scm.py

@@ -102,14 +102,14 @@ class GIT(object):
         ['git'] + args, stderr=subprocess2.PIPE, **kwargs)
 
   @staticmethod
-  def CaptureStatus(files, upstream_branch=None):
+  def CaptureStatus(cwd, files, upstream_branch=None):
     """Returns git status.
 
     @files can be a string (one file) or a list of files.
 
     Returns an array of (status, file) tuples."""
     if upstream_branch is None:
-      upstream_branch = GIT.GetUpstreamBranch(os.getcwd())
+      upstream_branch = GIT.GetUpstreamBranch(cwd)
       if upstream_branch is None:
         raise gclient_utils.Error('Cannot determine upstream branch')
     command = ['diff', '--name-status', '-r', '%s...' % upstream_branch]

trychange.py

@@ -279,7 +279,8 @@ class GIT(SCM):
     logging.info("GIT(%s)" % self.checkout_root)
 
   def CaptureStatus(self):
-    return scm.GIT.CaptureStatus(self.checkout_root.replace(os.sep, '/'),
+    return scm.GIT.CaptureStatus(self.checkout_root,
+                                 self.checkout_root.replace(os.sep, '/'),
                                  self.diff_against)
 
   def GenerateDiff(self):