allow authentication with github token

ghcloneall.py

@@ -82,7 +82,7 @@ def get_github_list(url, batch_size=100, progress_callback=None, session=None):
     while 'next' in links:
         if progress_callback:
             progress_callback(len(res))
-        more, links = get_json_and_links(links['next']['url'])
+        more, links = get_json_and_links(links['next']['url'], session)
         res += more
     return res
 
@@ -382,7 +382,8 @@ def from_gist(cls, gist):
 
 class RepoWrangler(object):
 
-    def __init__(self, dry_run=False, verbose=0, progress=None, quiet=False):
+    def __init__(self, dry_run=False, verbose=0, progress=None, quiet=False,
+                 token=None):
         self.n_repos = 0
         self.n_updated = 0
         self.n_new = 0
@@ -393,13 +394,18 @@ def __init__(self, dry_run=False, verbose=0, progress=None, quiet=False):
         self.progress = progress if progress else Progress()
         self.lock = threading.Lock()
 
+        self.session = requests.Session()
+        if token:
+            self.session.auth = ('', token)
+
     def get_github_list(self, list_url, message):
         self.progress.status(message)
 
         def progress_callback(n):
             self.progress.status("{} ({})".format(message, n))
 
-        return get_github_list(list_url, progress_callback=progress_callback)
+        return get_github_list(list_url, progress_callback=progress_callback,
+                               session=self.session)
 
     def list_gists(self, user, pattern=None):
         list_url = 'https://api.github.com/users/{}/gists'.format(user)
@@ -776,6 +782,9 @@ def _main():
     parser.add_argument(
         '--user',
         help='specify the GitHub user')
+    parser.add_argument(
+        '--github-token',
+        help='specify the GitHub token')
     parser.add_argument(
         '--gists', action='store_true', default=None,
         help="clone user's gists")
@@ -912,7 +921,8 @@ def _main():
 
     with Progress() as progress:
         wrangler = RepoWrangler(dry_run=args.dry_run, verbose=args.verbose,
-                                progress=progress, quiet=args.quiet)
+                                progress=progress, quiet=args.quiet,
+                                token=args.github_token)
         if args.gists:
             repos = wrangler.list_gists(
                 user=args.user,