diagnose_bloat.py: Don't run git commands when --cloud

tools/binary_size/diagnose_bloat.py

 #!/usr/bin/env python
 # Copyright 2017 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.
 
 """Tool for finding the cause of binary size bloat.
 
 See //tools/binary_size/README.md for example usage.
 
 Note: this tool will perform gclient sync/git checkout on your local repo if
@@ skipping 215 matching lines @@
   @property
   def download_output_dir(self):
     return 'out/Release' if self.IsAndroid() else 'full-build-linux'
 
   @property
   def map_file_path(self):
     return self.main_lib_path + '.map.gz'
 
   @property
   def size_name(self):
-    return os.path.splitext(os.path.basename(self.main_lib_path))[0] + '.size'
+    if self.IsLinux():
+      return os.path.basename(self.main_lib_path) + '.size'
+    return self.apk_name + '.size'
 
   def _SetDefaults(self):
     has_goma_dir = os.path.exists(os.path.join(os.path.expanduser('~'), 'goma'))
     self.use_goma = self.use_goma or has_goma_dir
     self.max_load_average = (self.max_load_average or
                              str(multiprocessing.cpu_count()))
     if not self.max_jobs:
       self.max_jobs = '10000' if self.use_goma else '500'
 
     if os.path.exists(os.path.join(os.path.dirname(_SRC_ROOT), 'src-internal')):
@@ skipping 505 matching lines @@
     sys.exit()
   args = parser.parse_args()
   log_level = logging.DEBUG if args.verbose else logging.INFO
   logging.basicConfig(level=log_level,
                       format='%(levelname).1s %(relativeCreated)6d %(message)s')
   build = _BuildHelper(args)
   if build.IsCloud() and args.subrepo:
       parser.error('--subrepo doesn\'t work with --cloud')
 
   subrepo = args.subrepo or _SRC_ROOT
-  _EnsureDirectoryClean(subrepo)
-  _SetRestoreFunc(subrepo)
+  if not build.IsCloud():
+    _EnsureDirectoryClean(subrepo)
+    _SetRestoreFunc(subrepo)
+
   if build.IsLinux():
     _VerifyUserAccepts('Linux diffs have known deficiencies (crbug/717550).')
 
   rev, reference_rev = _ValidateRevs(
       args.rev, args.reference_rev or args.rev + '^', subrepo)
   revs = _GenerateRevList(rev, reference_rev, args.all, subrepo)
   with _TmpCopyBinarySizeDir() as supersize_path:
     diffs = [NativeDiff(build.size_name, supersize_path)]
     if build.IsAndroid():
       diffs +=  [
@@ skipping 28 matching lines @@
 
       if i != 0:
         diff_mngr.MaybeDiff(i - 1, i)
 
     diff_mngr.Summarize()
 
 
 if __name__ == '__main__':
   sys.exit(main())