Enforce cwd for GIT functions

GIT.CaptureStatus was assuming os.getcwd() was using all the time, which isn't
true when using trychange.py --sub_rep XXX.

R=dpranke@chromium.org
TEST=
BUG=


Review URL: http://codereview.chromium.org/8930002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@114264 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], '.', upstream_branch)
     except subprocess2.CalledProcessError:
       DieWithError(
           ('\nFailed to diff against upstream branch %s!\n\n'

git_try.py

@@ -19,7 +19,8 @@ import git_cl
 def GetRietveldIssueNumber():
   try:
     return GIT.Capture(
-        ['config', 'branch.%s.rietveldissue' % GIT.GetBranch(None)]).strip()
+        ['config', 'branch.%s.rietveldissue' % GIT.GetBranch('.')],
+        '.').strip()
   except subprocess2.CalledProcessError:
     return None
 
@@ -27,14 +28,15 @@ def GetRietveldIssueNumber():
 def GetRietveldPatchsetNumber():
   try:
     return GIT.Capture(
-        ['config', 'branch.%s.rietveldpatchset' % GIT.GetBranch(None)]).strip()
+        ['config', 'branch.%s.rietveldpatchset' % GIT.GetBranch('.')],
+        '.').strip()
   except subprocess2.CalledProcessError:
     return None
 
 
 def GetRietveldServerUrl():
   try:
-    return GIT.Capture(['config', 'rietveld.server']).strip()
+    return GIT.Capture(['config', 'rietveld.server'], '.').strip()
   except subprocess2.CalledProcessError:
     return None
 

scm.py

@@ -97,19 +97,19 @@ class GIT(object):
   current_version = None
 
   @staticmethod
-  def Capture(args, **kwargs):
+  def Capture(args, cwd, **kwargs):
     return subprocess2.check_output(
-        ['git'] + args, stderr=subprocess2.PIPE, **kwargs)
+        ['git'] + args, cwd=cwd, stderr=subprocess2.PIPE, **kwargs)
 
   @staticmethod
-  def CaptureStatus(files, upstream_branch=None):
+  def CaptureStatus(files, cwd, upstream_branch):
     """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]
@@ -119,7 +119,7 @@ class GIT(object):
       command.append(files)
     else:
       command.extend(files)
-    status = GIT.Capture(command).rstrip()
+    status = GIT.Capture(command, cwd).rstrip()
     results = []
     if status:
       for statusline in status.splitlines():
@@ -226,7 +226,7 @@ class GIT(object):
     # pipe at a time.
     # The -100 is an arbitrary limit so we don't search forever.
     cmd = ['git', 'log', '-100', '--pretty=medium']
-    proc = subprocess2.Popen(cmd, stdout=subprocess2.PIPE)
+    proc = subprocess2.Popen(cmd, cwd, stdout=subprocess2.PIPE)
     url = None
     for line in proc.stdout:
       match = git_svn_re.match(line)
@@ -237,8 +237,9 @@ class GIT(object):
 
     if url:
       svn_remote_re = re.compile(r'^svn-remote\.([^.]+)\.url (.*)$')
-      remotes = GIT.Capture(['config', '--get-regexp',
-                            r'^svn-remote\..*\.url'], cwd=cwd).splitlines()
+      remotes = GIT.Capture(
+          ['config', '--get-regexp', r'^svn-remote\..*\.url'],
+          cwd=cwd).splitlines()
       for remote in remotes:
         match = svn_remote_re.match(remote)
         if match:
@@ -383,7 +384,7 @@ class GIT(object):
   def AssertVersion(cls, min_version):
     """Asserts git's version is at least min_version."""
     if cls.current_version is None:
-      cls.current_version = cls.Capture(['--version']).split()[-1]
+      cls.current_version = cls.Capture(['--version'], '.').split()[-1]
     current_version_list = map(only_int, cls.current_version.split('.'))
     for min_ver in map(int, min_version.split('.')):
       ver = current_version_list.pop(0)

trychange.py

@@ -275,11 +275,15 @@ 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.replace(os.sep, '/'),
         self.diff_against)
 
   def GenerateDiff(self):
-    return scm.GIT.GenerateDiff(self.checkout_root, files=self.files,
+    return scm.GIT.GenerateDiff(
+        self.checkout_root,
+        files=self.files,
         full_move=True,
         branch=self.diff_against)