revert unintentional checkin of svndiff.py

tools/svndiff.py

 #!/usr/bin/python
 '''
 Copyright 2012 Google Inc.
 
 Use of this source code is governed by a BSD-style license that can be
 found in the LICENSE file.
 '''
 
 '''
 Generates a visual diff of all pending changes in the local SVN (or git!)
@@ skipping 129 matching lines @@
     for (imagename, results) in diff_dict.iteritems():
         # TODO(epoger): Currently, this assumes that all images have been
         # checksummed using gm_json.JSONKEY_HASHTYPE_BITMAP_64BITMD5
 
         old_checksum = results['old']
         if old_checksum:
             old_image_url = _CreateGSUrl(
                 imagename=imagename,
                 hash_type=gm_json.JSONKEY_HASHTYPE_BITMAP_64BITMD5,
                 hash_digest=old_checksum)
-            try:
-                _DownloadUrlToFile(
-                    source_url=old_image_url,
-                    dest_path=os.path.join(old_flattened_dir,
-                                           filename_prefix + imagename))
-            except:
-                print "unable to find image ",  os.path.join(old_flattened_dir, filename_prefix + imagename)
+            _DownloadUrlToFile(
+                source_url=old_image_url,
+                dest_path=os.path.join(old_flattened_dir,
+                                       filename_prefix + imagename))
 
         new_checksum = results['new']
         if new_checksum:
             new_image_url = _CreateGSUrl(
                 imagename=imagename,
                 hash_type=gm_json.JSONKEY_HASHTYPE_BITMAP_64BITMD5,
                 hash_digest=new_checksum)
             _DownloadUrlToFile(
                 source_url=new_image_url,
                 dest_path=os.path.join(new_flattened_dir,
@@ skipping 146 matching lines @@
                       help='path to already-built skdiff tool; if not set, '
                       'will search for it in typical directories near this '
                       'script')
     parser.add_option(OPTION_SOURCE_DIR,
                       action='store', type='string',
                       default=os.path.join('expectations', 'gm'),
                       help='root directory within which to compare all ' +
                       'files; defaults to "%default"')
     (options, args) = parser.parse_args()
     Main(options, args)