Support --enable-auto-submit in `git cl split`

With default True.

This CL was uploaded by git cl split.

R=jochen@chromium.org
Bug: 927178
Change-Id: Ie0a68ed7ca381e1bb33341badca153bf409bb376
Reviewed-on: https://chromium-review.googlesource.com/c/1470402
Reviewed-by: Nico Weber <thakis@chromium.org>
Reviewed-by: Edward Lesmes <ehmaldonado@chromium.org>
Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>
Auto-Submit: Takuto Ikuta <tikuta@chromium.org>

git_cl.py

@@ -4604,6 +4604,11 @@ def CMDsplit(parser, args):
                          "infrastructure. Try to upload these not during high "
                          "load times (usually 11-3 Mountain View time). Email "
                          "infra-dev@chromium.org with any questions.")
+  parser.add_option('-a', '--enable-auto-submit', action='store_true',
+                    default=True,
+                    help='Sends your change to the CQ after an approval. Only '
+                         'works on repos that have the Auto-Submit label '
+                         'enabled')
   options, _ = parser.parse_args(args)
 
   if not options.description_file:
@@ -4614,7 +4619,7 @@ def CMDsplit(parser, args):
 
   return split_cl.SplitCl(options.description_file, options.comment_file,
                           Changelist, WrappedCMDupload, options.dry_run,
-                          options.cq_dry_run)
+                          options.cq_dry_run, options.enable_auto_submit)
 
 
 @subcommand.usage('DEPRECATED')

split_cl.py

@@ -75,7 +75,7 @@ def AddUploadedByGitClSplitToDescription(description):
 
 def UploadCl(refactor_branch, refactor_branch_upstream, directory, files,
              description, comment, reviewers, changelist, cmd_upload,
-             cq_dry_run):
+             cq_dry_run, enable_auto_submit):
   """Uploads a CL with all changes to |files| in |refactor_branch|.
 
   Args:
@@ -90,6 +90,7 @@ def UploadCl(refactor_branch, refactor_branch_upstream, directory, files,
     changelist: The Changelist class.
     cmd_upload: The function associated with the git cl upload command.
     cq_dry_run: If CL uploads should also do a cq dry run.
+    enable_auto_submit: If CL uploads should also enable auto submit.
   """
   # Create a branch.
   if not CreateBranchForDirectory(
@@ -121,6 +122,8 @@ def UploadCl(refactor_branch, refactor_branch_upstream, directory, files,
     upload_args.append('--cq-dry-run')
   if not comment:
     upload_args.append('--send-mail')
+  if enable_auto_submit:
+    upload_args.append('--enable-auto-submit')
   print 'Uploading CL for ' + directory + '.'
   cmd_upload(upload_args)
   if comment:
@@ -168,7 +171,7 @@ def PrintClInfo(cl_index, num_cls, directory, file_paths, description,
 
 
 def SplitCl(description_file, comment_file, changelist, cmd_upload, dry_run,
-            cq_dry_run):
+            cq_dry_run, enable_auto_submit):
   """"Splits a branch into smaller branches and uploads CLs.
 
   Args:
@@ -178,6 +181,7 @@ def SplitCl(description_file, comment_file, changelist, cmd_upload, dry_run,
     cmd_upload: The function associated with the git cl upload command.
     dry_run: Whether this is a dry run (no branches or CLs created).
     cq_dry_run: If CL uploads should also do a cq dry run.
+    enable_auto_submit: If CL uploads should also enable auto submit.
 
   Returns:
     0 in case of success. 1 in case of error.
@@ -236,7 +240,7 @@ def SplitCl(description_file, comment_file, changelist, cmd_upload, dry_run,
       else:
         UploadCl(refactor_branch, refactor_branch_upstream, directory, files,
                  description, comment, reviewers, changelist, cmd_upload,
-                 cq_dry_run)
+                 cq_dry_run, enable_auto_submit)
 
     # Go back to the original branch.
     git.run('checkout', refactor_branch)