Handle user-only http auth in git module

salt/modules/git.py

@@ -123,8 +123,11 @@ def _add_http_basic_auth(repository, https_user=None, https_pass=None):
     else:
         urltuple = _urlparse(repository)
         if urltuple.scheme == 'https':
-            netloc = "{0}:{1}@{2}".format(https_user, https_pass,
-                                          urltuple.netloc)
+            if https_pass:
+                auth_string = "{0}:{1}".format(https_user, https_pass)
+            else:
+                auth_string = https_user
+            netloc = "{0}@{1}".format(auth_string, urltuple.netloc)
             urltuple = urltuple._replace(netloc=netloc)
             return _urlunparse(urltuple)
         else:

tests/unit/modules/git_test.py

@@ -0,0 +1,43 @@
+# -*- coding: utf-8 -*-
+'''
+    :codeauthor: :email:`Tarjei Husøy <git@thusoy.com>`
+'''
+
+# Import Salt Testing Libs
+from salttesting import TestCase
+from salttesting.helpers import ensure_in_syspath
+
+ensure_in_syspath('../../')
+
+# Import Salt Libs
+from salt.modules import git
+
+
+class GitTestCase(TestCase):
+    '''
+    TestCase for salt.modules.git module
+    '''
+
+    def test_http_basic_authentication(self):
+        '''
+            Test that HTTP Basic auth works as intended.
+        '''
+        # ((user, pass), expected) tuples
+        test_inputs = [
+            ((None, None), 'https://example.com'),
+            (('user', None), 'https://user@example.com'),
+            (('user', 'pass'), 'https://user:pass@example.com'),
+        ]
+        for (user, password), expected in test_inputs:
+            kwargs = {
+                'https_user': user,
+                'https_pass': password,
+                'repository': 'https://example.com',
+            }
+            result = git._add_http_basic_auth(**kwargs)
+            self.assertEqual(result, expected)
+
+
+if __name__ == '__main__':
+    from integration import run_tests
+    run_tests(GitTestCase, needs_daemon=False)