Remove the review bot app.

reviewbot/third_party/google-api-python-client/oauth2client/util.py

-#!/usr/bin/env python
-#
-# Copyright 2010 Google Inc.
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#     http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-#
-
-"""Common utility library."""
-
-__author__ = ['rafek@google.com (Rafe Kaplan)',
-              'guido@google.com (Guido van Rossum)',
-]
-__all__ = [
-  'positional',
-]
-
-import gflags
-import inspect
-import logging
-import types
-import urllib
-import urlparse
-
-try:
-  from urlparse import parse_qsl
-except ImportError:
-  from cgi import parse_qsl
-
-logger = logging.getLogger(__name__)
-
-FLAGS = gflags.FLAGS
-
-gflags.DEFINE_enum('positional_parameters_enforcement', 'WARNING',
-    ['EXCEPTION', 'WARNING', 'IGNORE'],
-    'The action when an oauth2client.util.positional declaration is violated.')
-
-
-def positional(max_positional_args):
-  """A decorator to declare that only the first N arguments my be positional.
-
-  This decorator makes it easy to support Python 3 style key-word only
-  parameters. For example, in Python 3 it is possible to write:
-
-    def fn(pos1, *, kwonly1=None, kwonly1=None):
-      ...
-
-  All named parameters after * must be a keyword:
-
-    fn(10, 'kw1', 'kw2')  # Raises exception.
-    fn(10, kwonly1='kw1')  # Ok.
-
-  Example:
-    To define a function like above, do:
-
-      @positional(1)
-      def fn(pos1, kwonly1=None, kwonly2=None):
-        ...
-
-    If no default value is provided to a keyword argument, it becomes a required
-    keyword argument:
-
-      @positional(0)
-      def fn(required_kw):
-        ...
-
-    This must be called with the keyword parameter:
-
-      fn()  # Raises exception.
-      fn(10)  # Raises exception.
-      fn(required_kw=10)  # Ok.
-
-    When defining instance or class methods always remember to account for
-    'self' and 'cls':
-
-      class MyClass(object):
-
-        @positional(2)
-        def my_method(self, pos1, kwonly1=None):
-          ...
-
-        @classmethod
-        @positional(2)
-        def my_method(cls, pos1, kwonly1=None):
-          ...
-
-  The positional decorator behavior is controlled by the
-  --positional_parameters_enforcement flag. The flag may be set to 'EXCEPTION',
-  'WARNING' or 'IGNORE' to raise an exception, log a warning, or do nothing,
-  respectively, if a declaration is violated.
-
-  Args:
-    max_positional_arguments: Maximum number of positional arguments. All
-      parameters after the this index must be keyword only.
-
-  Returns:
-    A decorator that prevents using arguments after max_positional_args from
-    being used as positional parameters.
-
-  Raises:
-    TypeError if a key-word only argument is provided as a positional parameter,
-    but only if the --positional_parameters_enforcement flag is set to
-    'EXCEPTION'.
-  """
-  def positional_decorator(wrapped):
-    def positional_wrapper(*args, **kwargs):
-      if len(args) > max_positional_args:
-        plural_s = ''
-        if max_positional_args != 1:
-          plural_s = 's'
-        message = '%s() takes at most %d positional argument%s (%d given)' % (
-            wrapped.__name__, max_positional_args, plural_s, len(args))
-        if FLAGS.positional_parameters_enforcement == 'EXCEPTION':
-          raise TypeError(message)
-        elif FLAGS.positional_parameters_enforcement == 'WARNING':
-          logger.warning(message)
-        else: # IGNORE
-          pass
-      return wrapped(*args, **kwargs)
-    return positional_wrapper
-
-  if isinstance(max_positional_args, (int, long)):
-    return positional_decorator
-  else:
-    args, _, _, defaults = inspect.getargspec(max_positional_args)
-    return positional(len(args) - len(defaults))(max_positional_args)
-
-
-def scopes_to_string(scopes):
-  """Converts scope value to a string.
-
-  If scopes is a string then it is simply passed through. If scopes is an
-  iterable then a string is returned that is all the individual scopes
-  concatenated with spaces.
-
-  Args:
-    scopes: string or iterable of strings, the scopes.
-
-  Returns:
-    The scopes formatted as a single string.
-  """
-  if isinstance(scopes, types.StringTypes):
-    return scopes
-  else:
-    return ' '.join(scopes)
-
-
-def dict_to_tuple_key(dictionary):
-  """Converts a dictionary to a tuple that can be used as an immutable key.
-
-  The resulting key is always sorted so that logically equivalent dictionaries
-  always produce an identical tuple for a key.
-
-  Args:
-    dictionary: the dictionary to use as the key.
-
-  Returns:
-    A tuple representing the dictionary in it's naturally sorted ordering.
-  """
-  return tuple(sorted(dictionary.items()))
-
-
-def _add_query_parameter(url, name, value):
-  """Adds a query parameter to a url.
-
-  Replaces the current value if it already exists in the URL.
-
-  Args:
-    url: string, url to add the query parameter to.
-    name: string, query parameter name.
-    value: string, query parameter value.
-
-  Returns:
-    Updated query parameter. Does not update the url if value is None.
-  """
-  if value is None:
-    return url
-  else:
-    parsed = list(urlparse.urlparse(url))
-    q = dict(parse_qsl(parsed[4]))
-    q[name] = value
-    parsed[4] = urllib.urlencode(q)
-    return urlparse.urlunparse(parsed)