Gate tarball downloading based on SVN 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 collections
 import logging
 import os
 import posixpath
@@ skipping 1162 matching lines @@
           exists = False
         else:
           msg = ('Can\'t update/checkout %s if an unversioned directory is '
                  'present. Delete the directory and try again.')
           raise gclient_utils.Error(msg % self.checkout_path)
 
     BASE_URLS = {
         '/chrome/trunk/src': 'gs://chromium-svn-checkout/chrome/',
         '/blink/trunk': 'gs://chromium-svn-checkout/blink/',
     }
+    WHITELISTED_ROOTS = [
+        'svn://svn.chromium.org',
+        'svn://svn-mirror.golo.chromium.org',
+    ]
     if not exists:
       try:
         # Split out the revision number since it's not useful for us.
         base_path = urlparse.urlparse(url).path.split('@')[0]
+        # Check to see if we're on a whitelisted root.  We do this because
+        # only some svn servers have matching UUIDs.
+        local_parsed = urlparse.urlparse(url)
+        local_root = '%s://%s' % (local_parsed.scheme, local_parsed.netloc)
         if ('CHROME_HEADLESS' in os.environ
             and sys.platform == 'linux2'  # TODO(hinoka): Enable for win/mac.
-            and base_path in BASE_URLS):
+            and base_path in BASE_URLS
+            and local_root in WHITELISTED_ROOTS):
+
           # Use a tarball for initial sync if we are on a bot.
           # Get an unauthenticated gsutil instance.
           gsutil = download_from_google_storage.Gsutil(
               GSUTIL_DEFAULT_PATH, boto_path=os.devnull)
 
           gs_path = BASE_URLS[base_path]
           _, out, _ = gsutil.check_call('ls', gs_path)
           # So that we can get the most recent revision.
           sorted_items = sorted(out.splitlines())
           latest_checkout = sorted_items[-1]
@@ skipping 17 matching lines @@
 
           print 'Deleting temp file'
           gclient_utils.rmtree(tempdir)
 
           # Rewrite the repository root to match.
           tarball_url = scm.SVN.CaptureLocalInfo(
               ['.'], self.checkout_path)['Repository Root']
           tarball_parsed = urlparse.urlparse(tarball_url)
           tarball_root = '%s://%s' % (tarball_parsed.scheme,
                                       tarball_parsed.netloc)
-          local_parsed = urlparse.urlparse(url)
-          local_root = '%s://%s' % (local_parsed.scheme, local_parsed.netloc)
 
           if tarball_root != local_root:
             print 'Switching repository root to %s' % local_root
             self._Run(['switch', '--relocate', tarball_root,
                        local_root, self.checkout_path],
                       options)
       except Exception as e:
         print 'We tried to get a source tarball but failed.'
         print 'Resuming normal operations.'
         print str(e)
@@ skipping 279 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