Add --no-permissions-check to Certbot.

certbot/cli.py

@@ -1089,6 +1089,11 @@ def prepare_and_parse_args(plugins, args, detect_defaults=False):  # pylint: dis
         help="(certbot-auto only) prevent the certbot-auto script from"
              " installing OS-level dependencies (default: Prompt to install "
              " OS-wide dependencies, but exit if the user says 'No')")
+    helpful.add(
+        "automation", "--no-permissions-check", action="store_true",
+        default=flag_default("no_permissions_check"),
+        help="(certbot-auto only) skip the check on the file system"
+             " permissions of the certbot-auto script")
     helpful.add(
         ["automation", "renew", "certonly", "run"],
         "-q", "--quiet", dest="quiet", action="store_true",

certbot/constants.py

@@ -46,6 +46,7 @@ CLI_DEFAULTS = dict(
     duplicate=False,
     os_packages_only=False,
     no_self_upgrade=False,
+    no_permissions_check=False,
     no_bootstrap=False,
     quiet=False,
     staging=False,

certbot/tests/cli_test.py

@@ -453,6 +453,10 @@ class ParseTest(unittest.TestCase):  # pylint: disable=too-many-public-methods
             for topic in ['all', 'plugins', 'dns-route53']:
                 self.assertFalse('certbot-route53:auth' in self._help_output([help_flag, topic]))
 
+    def test_no_permissions_check_accepted(self):
+        namespace = self.parse(["--no-permissions-check"])
+        self.assertTrue(namespace.no_permissions_check)
+
 
 class DefaultTest(unittest.TestCase):
     """Tests for certbot.cli._Default."""