Revert of Reland r245404 "If the destination directory doesn't contain the desired repo, delete it"

gclient.py

 #!/usr/bin/env python
 # 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.
 
 """Meta checkout manager supporting both Subversion and GIT."""
 # Files
 #   .gclient      : Current client configuration, written by 'config' command.
 #                   Format is a Python script defining 'solutions', a list whose
 #                   entries each are maps binding the strings "name" and "url"
@@ skipping 69 matching lines @@
 
 import copy
 import json
 import logging
 import optparse
 import os
 import platform
 import posixpath
 import pprint
 import re
-import socket
 import sys
 import time
 import urllib
 import urlparse
 
 import breakpad  # pylint: disable=W0611
 
 import fix_encoding
 import gclient_scm
 import gclient_utils
@@ skipping 561 matching lines @@
           self._used_scm.RunCommand('updatesingle',
               options, args + [parsed_url.GetFilename()], file_list)
       else:
         # Create a shallow copy to mutate revision.
         options = copy.copy(options)
         options.revision = revision_overrides.get(self.name)
         self.maybeGetParentRevision(
             command, options, parsed_url, self.parent.name, revision_overrides)
         self._used_scm = gclient_scm.CreateSCM(
             parsed_url, self.root.root_dir, self.name)
-
-        def enable_deletion_of_conflicting_checkouts():
-          """Determines whether to enable new checkout deletion behavior.
-
-          Initially, enables the experimental functionality on a small set of
-          bots.
-          """
-          # TODO(borenet): Remove this hack as soon as we've verified that it
-          # doesn't cause the bots to break.
-          return (os.environ.get('CHROME_HEADLESS') and
-                  socket.gethostname() in ('vm859-m1', 'build1-m1', 'vm630-m1'))
-
-        # When updating, determine whether the destination directory contains a
-        # checkout of the desired repository. If not, avoid conflicts by
-        # deleting the directory before running the update.
-        if command == 'update' and enable_deletion_of_conflicting_checkouts():
-          logging.warning('Experimental deletion of mismatching checkouts '
-                          'enabled.')
-          actual_remote_url = self._used_scm.GetRemoteURL(options)
-          url, _ = gclient_utils.SplitUrlRevision(parsed_url)
-          url = url.rstrip('/')
-          dest_dir = os.path.join(self.root.root_dir, self.name)
-          if os.path.isdir(dest_dir) and actual_remote_url != url:
-            if options.force:
-              logging.warning('%s does not contain a checkout of %s. Removing '
-                              ' %s' % (dest_dir, url, dest_dir))
-              gclient_utils.rmtree(dest_dir)
-            else:
-              raise gclient_utils.Error('%s does not contain a checkout of %s '
-                                        '(found %s instead). Please fix the '
-                                        'solution manually or run with --force '
-                                        'to delete automatically.' % (
-                                            dest_dir, url, actual_remote_url))
-
         self._got_revision = self._used_scm.RunCommand(command, options, args,
                                                        file_list)
         if file_list:
           file_list = [os.path.join(self.name, f.strip()) for f in file_list]
 
       # TODO(phajdan.jr): We should know exactly when the paths are absolute.
       # Convert all absolute paths to relative.
       for i in range(len(file_list or [])):
         # It depends on the command being executed (like runhooks vs sync).
         if not os.path.isabs(file_list[i]):
@@ skipping 1235 matching lines @@
     raise
   except (gclient_utils.Error, subprocess2.CalledProcessError), e:
     print >> sys.stderr, 'Error: %s' % str(e)
     return 1
 
 
 if '__main__' == __name__:
   sys.exit(Main(sys.argv[1:]))
 
 # vim: ts=2:sw=2:tw=80:et: