[git-llvm] Allow pushing commits over ssh.

[tra]

Summary

• Added -s option to allow pushing commits over ssh.
• Set default branch to 'master'.

llvm/utils/git-svn/git-llvm

for path in os.environ["PATH"].split(os.pathsep):
             return True
     return False
 
 
 def get_fetch_url():
     return 'https://{}'.format(GIT_URL)
 
 
-def get_push_url(user='', token='', ssh=False):
+def get_push_url(user='', token=''):
 
-    if ssh:
-        return 'ssh://{}'.format(GIT_URL)
+    if token is None:
+        return 'ssh://git@{}'.format(GIT_URL)
 
     return 'https://{}@{}'.format(token, GIT_URL)
 
 
 def get_revs_to_push(branch):
     # Fetch the latest upstream to determine which commits will be pushed.
     git('fetch', get_fetch_url(), branch)
 
def cmd_push(args):
     # Ask confirmation if multiple commits are about to be pushed
     if not args.force and len(revs) > 1:
         if not ask_confirm("Are you sure you want to create %d commits?" % len(revs)):
             die("Aborting")
 
     # FIXME: I'm really trying to avoid prompting twice for the password, the only
     # way I can see to do that is require an authentication token instead of a
     # password, because you can embedded authentication tokens into the URL.
+    if args.use_ssh:
+      github_token = None
+    else:
       github_token = getpass.getpass("Auth token for https://github.com':")
     g = github.Github(github_token)
     for r in revs:
         git_push_one_rev(r, dry_run, args.branch, g, github_token)
 
 
 if __name__ == '__main__':
     if not program_exists('git'):
         die('error: git-llvm needs git command, but git is not installed.')
parser_push.add_argument(
         '--force',
         action='store_true',
         help='Do not ask for confirmation when pushing multiple commits.')
     parser_push.add_argument(
         'branch',
         metavar='GIT_BRANCH',
         type=str,
         nargs='?',
-        help="branch to push (default: everything not in the branch's "
-        'upstream)')
+        default='master',
+        help="branch to push to (default: master)")
+    parser_push.add_argument(
+        '-s',
+        '--ssh',
+        dest='use_ssh',
+        action='store_true',
+        help='Use SSH to push commits.')
     parser_push.set_defaults(func=cmd_push)
 
     args = p.parse_args(argv)
     VERBOSE = args.verbose
     QUIET = args.quiet
 
     # Python3 workaround, for when not arguments are provided.
     # See https://bugs.python.org/issue16308