Print commit shas when there are exportable and not exported commits.

third_party/WebKit/Tools/Scripts/webkitpy/w3c/test_importer.py

 # Copyright 2014 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.
 
 """Fetches a copy of the latest state of a W3C test repository and commits.
 
 If this script is given the argument --auto-update, it will also:
  1. Upload a CL.
  2. Trigger try jobs and wait for them to complete.
  3. Make any changes that are required for new failing tests.
@@ skipping 59 matching lines @@
 
         # TODO(qyearsley): Simplify this to use LocalWPT.fetch when csswg-test
         # is merged into web-platform-tests.
         temp_repo_path = self.path_from_webkit_base(dest_dir_name)
         _log.info('Cloning %s into %s.', repo_url, temp_repo_path)
         self.run(['git', 'clone', repo_url, temp_repo_path])
 
         if options.target == 'wpt':
             commits = self.exportable_but_not_exported_commits(temp_repo_path)
             if commits:
-                _log.error('There were exportable but not-yet-exported commits: %r', commits)
+                _log.error('There were exportable but not-yet-exported commits:')
+                for commit in commits:
+                    _log.error('  https://chromium.googlesource.com/chromium/src/+/%s', commit.sha)
                 _log.error('Aborting import to prevent clobbering these commits.')
                 return 1
 
         import_commit = self.update(dest_dir_name, temp_repo_path, options.keep_w3c_repos_around, options.revision)
 
         if options.target == 'wpt':
             self._copy_resources()
 
         has_changes = self._has_changes()
         if not has_changes:
@@ skipping 346 matching lines @@
         """Returns a dict mapping source to dest name for layout tests that have been renamed."""
         out = self.check_run(['git', 'diff', 'origin/master', '-M100%', '--diff-filter=R', '--name-status'])
         renamed_tests = {}
         for line in out.splitlines():
             _, source_path, dest_path = line.split()
             source_test = self.finder.layout_test_name(source_path)
             dest_test = self.finder.layout_test_name(dest_path)
             if source_test and dest_test:
                 renamed_tests[source_test] = dest_test
         return renamed_tests