gclient: in managed mode, warn if .gclient has a mismatched URL

gclient_scm.py

 # Copyright (c) 2012 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.
 
 """Gclient-specific SCM-specific operations."""
 
 import logging
 import os
 import posixpath
 import re
+import shlex
 import sys
 import tempfile
 import traceback
 import urlparse
 
 import download_from_google_storage
 import gclient_utils
 import scm
 import subprocess2
 
@@ skipping 111 matching lines @@
 
     if not command in commands:
       raise gclient_utils.Error('Unknown command %s' % command)
 
     if not command in dir(self):
       raise gclient_utils.Error('Command %s not implemented in %s wrapper' % (
           command, self.__class__.__name__))
 
     return getattr(self, command)(options, args, file_list)
 
+  def GetActualRemoteURL(self):
+    """Attempt to determine the remote URL for this SCMWrapper."""

[borenet, 2014/03/13 13:53:35]

I just copied the new code here, because GitWrapper or SvnWrapper both need to
have the option of falling back on the other's method of finding the remote URL,
in case the actually-checked-out code doesn't match the desired URL.

[iannucci, 2014/03/13 18:27:27]

yeah, that seems reasonable to me.

+    try:
+      return shlex.split(scm.GIT.Capture(
+          ['config', '--local', '--get-regexp', r'remote.*.url'],
+          self.checkout_path))[1]
+    except Exception:
+      pass
+    try:
+      return scm.SVN.CaptureLocalInfo([], self.checkout_path)['URL']
+    except Exception:
+      pass
+    return None
+
+  def DoesRemoteURLMatch(self):
+    """Determine whether the remote URL of this checkout is the expected URL."""
+    return self.GetActualRemoteURL().rstrip('/') == self.url.rstrip('/')
+
 
 class GitWrapper(SCMWrapper):
   """Wrapper for Git"""
   name = 'git'
   remote = 'origin'
 
   cache_dir = None
 
   def __init__(self, url=None, root_dir=None, relpath=None):
     """Removes 'git+' fake prefix from git URL."""
@@ skipping 1249 matching lines @@
       new_command.append('--force')
       if command[0] != 'checkout' and scm.SVN.AssertVersion('1.6')[0]:
         new_command.extend(('--accept', 'theirs-conflict'))
     elif options.manually_grab_svn_rev:
       new_command.append('--force')
       if command[0] != 'checkout' and scm.SVN.AssertVersion('1.6')[0]:
         new_command.extend(('--accept', 'postpone'))
     elif command[0] != 'checkout' and scm.SVN.AssertVersion('1.6')[0]:
       new_command.extend(('--accept', 'postpone'))
     return new_command