sync oslo

Change-Id: I4569f14d71dd3823b49c51db5b417cc07a5e9609

9 files changed, 488 insertions, 550 deletions

diff --git a/barbicanclient/openstack/common/__init__.py b/barbicanclient/openstack/common/__init__.py
index e69de29..d1223ea 100644
--- a/barbicanclient/openstack/common/__init__.py
+++ b/barbicanclient/openstack/common/__init__.py
@@ -0,0 +1,17 @@
+#
+#    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.
+
+import six
+
+
+six.add_move(six.MovedModule('mox', 'mox', 'mox3.mox'))
diff --git a/barbicanclient/openstack/common/gettextutils.py b/barbicanclient/openstack/common/gettextutils.py
index 83c9353..d14ed93 100644
--- a/barbicanclient/openstack/common/gettextutils.py
+++ b/barbicanclient/openstack/common/gettextutils.py
@@ -1,6 +1,5 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2012 Red Hat, Inc.
+# Copyright 2013 IBM Corp.
 # All Rights Reserved.
 #
 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
@@ -23,18 +22,78 @@ Usual usage in an openstack.common module:
     from barbicanclient.openstack.common.gettextutils import _
 """
 
+import copy
+import functools
 import gettext
+import locale
+from logging import handlers
 import os
 
+from babel import localedata
+import six
+
 _localedir = os.environ.get('barbicanclient'.upper() + '_LOCALEDIR')
 _t = gettext.translation('barbicanclient', localedir=_localedir, fallback=True)
 
+# We use separate translation catalogs for each log level, so set up a
+# mapping between the log level name and the translator. The domain
+# for the log level is project_name + "-log-" + log_level so messages
+# for each level end up in their own catalog.
+_t_log_levels = dict(
+    (level, gettext.translation('barbicanclient' + '-log-' + level,
+                                localedir=_localedir,
+                                fallback=True))
+    for level in ['info', 'warning', 'error', 'critical']
+)
+
+_AVAILABLE_LANGUAGES = {}
+USE_LAZY = False
+
+
+def enable_lazy():
+    """Convenience function for configuring _() to use lazy gettext
+
+    Call this at the start of execution to enable the gettextutils._
+    function to use lazy gettext functionality. This is useful if
+    your project is importing _ directly instead of using the
+    gettextutils.install() way of importing the _ function.
+    """
+    global USE_LAZY
+    USE_LAZY = True
+
 
 def _(msg):
-    return _t.ugettext(msg)
+    if USE_LAZY:
+        return Message(msg, domain='barbicanclient')
+    else:
+        if six.PY3:
+            return _t.gettext(msg)
+        return _t.ugettext(msg)
+
+
+def _log_translation(msg, level):
+    """Build a single translation of a log message
+    """
+    if USE_LAZY:
+        return Message(msg, domain='barbicanclient' + '-log-' + level)
+    else:
+        translator = _t_log_levels[level]
+        if six.PY3:
+            return translator.gettext(msg)
+        return translator.ugettext(msg)
+
+# Translators for log levels.
+#
+# The abbreviated names are meant to reflect the usual use of a short
+# name like '_'. The "L" is for "log" and the other letter comes from
+# the level.
+_LI = functools.partial(_log_translation, level='info')
+_LW = functools.partial(_log_translation, level='warning')
+_LE = functools.partial(_log_translation, level='error')
+_LC = functools.partial(_log_translation, level='critical')
 
 
-def install(domain):
+def install(domain, lazy=False):
     """Install a _() function using the given translation domain.
 
     Given a translation domain, install a _() function using gettext's
@@ -44,7 +103,346 @@ def install(domain):
     overriding the default localedir (e.g. /usr/share/locale) using
     a translation-domain-specific environment variable (e.g.
     NOVA_LOCALEDIR).
+
+    :param domain: the translation domain
+    :param lazy: indicates whether or not to install the lazy _() function.
+                 The lazy _() introduces a way to do deferred translation
+                 of messages by installing a _ that builds Message objects,
+                 instead of strings, which can then be lazily translated into
+                 any available locale.
     """
-    gettext.install(domain,
-                    localedir=os.environ.get(domain.upper() + '_LOCALEDIR'),
-                    unicode=True)
+    if lazy:
+        # NOTE(mrodden): Lazy gettext functionality.
+        #
+        # The following introduces a deferred way to do translations on
+        # messages in OpenStack. We override the standard _() function
+        # and % (format string) operation to build Message objects that can
+        # later be translated when we have more information.
+        def _lazy_gettext(msg):
+            """Create and return a Message object.
+
+            Lazy gettext function for a given domain, it is a factory method
+            for a project/module to get a lazy gettext function for its own
+            translation domain (i.e. nova, glance, cinder, etc.)
+
+            Message encapsulates a string so that we can translate
+            it later when needed.
+            """
+            return Message(msg, domain=domain)
+
+        from six import moves
+        moves.builtins.__dict__['_'] = _lazy_gettext
+    else:
+        localedir = '%s_LOCALEDIR' % domain.upper()
+        if six.PY3:
+            gettext.install(domain,
+                            localedir=os.environ.get(localedir))
+        else:
+            gettext.install(domain,
+                            localedir=os.environ.get(localedir),
+                            unicode=True)
+
+
+class Message(six.text_type):
+    """A Message object is a unicode object that can be translated.
+
+    Translation of Message is done explicitly using the translate() method.
+    For all non-translation intents and purposes, a Message is simply unicode,
+    and can be treated as such.
+    """
+
+    def __new__(cls, msgid, msgtext=None, params=None,
+                domain='barbicanclient', *args):
+        """Create a new Message object.
+
+        In order for translation to work gettext requires a message ID, this
+        msgid will be used as the base unicode text. It is also possible
+        for the msgid and the base unicode text to be different by passing
+        the msgtext parameter.
+        """
+        # If the base msgtext is not given, we use the default translation
+        # of the msgid (which is in English) just in case the system locale is
+        # not English, so that the base text will be in that locale by default.
+        if not msgtext:
+            msgtext = Message._translate_msgid(msgid, domain)
+        # We want to initialize the parent unicode with the actual object that
+        # would have been plain unicode if 'Message' was not enabled.
+        msg = super(Message, cls).__new__(cls, msgtext)
+        msg.msgid = msgid
+        msg.domain = domain
+        msg.params = params
+        return msg
+
+    def translate(self, desired_locale=None):
+        """Translate this message to the desired locale.
+
+        :param desired_locale: The desired locale to translate the message to,
+                               if no locale is provided the message will be
+                               translated to the system's default locale.
+
+        :returns: the translated message in unicode
+        """
+
+        translated_message = Message._translate_msgid(self.msgid,
+                                                      self.domain,
+                                                      desired_locale)
+        if self.params is None:
+            # No need for more translation
+            return translated_message
+
+        # This Message object may have been formatted with one or more
+        # Message objects as substitution arguments, given either as a single
+        # argument, part of a tuple, or as one or more values in a dictionary.
+        # When translating this Message we need to translate those Messages too
+        translated_params = _translate_args(self.params, desired_locale)
+
+        translated_message = translated_message % translated_params
+
+        return translated_message
+
+    @staticmethod
+    def _translate_msgid(msgid, domain, desired_locale=None):
+        if not desired_locale:
+            system_locale = locale.getdefaultlocale()
+            # If the system locale is not available to the runtime use English
+            if not system_locale[0]:
+                desired_locale = 'en_US'
+            else:
+                desired_locale = system_locale[0]
+
+        locale_dir = os.environ.get(domain.upper() + '_LOCALEDIR')
+        lang = gettext.translation(domain,
+                                   localedir=locale_dir,
+                                   languages=[desired_locale],
+                                   fallback=True)
+        if six.PY3:
+            translator = lang.gettext
+        else:
+            translator = lang.ugettext
+
+        translated_message = translator(msgid)
+        return translated_message
+
+    def __mod__(self, other):
+        # When we mod a Message we want the actual operation to be performed
+        # by the parent class (i.e. unicode()), the only thing  we do here is
+        # save the original msgid and the parameters in case of a translation
+        params = self._sanitize_mod_params(other)
+        unicode_mod = super(Message, self).__mod__(params)
+        modded = Message(self.msgid,
+                         msgtext=unicode_mod,
+                         params=params,
+                         domain=self.domain)
+        return modded
+
+    def _sanitize_mod_params(self, other):
+        """Sanitize the object being modded with this Message.
+
+        - Add support for modding 'None' so translation supports it
+        - Trim the modded object, which can be a large dictionary, to only
+        those keys that would actually be used in a translation
+        - Snapshot the object being modded, in case the message is
+        translated, it will be used as it was when the Message was created
+        """
+        if other is None:
+            params = (other,)
+        elif isinstance(other, dict):
+            # Merge the dictionaries
+            # Copy each item in case one does not support deep copy.
+            params = {}
+            if isinstance(self.params, dict):
+                for key, val in self.params.items():
+                    params[key] = self._copy_param(val)
+            for key, val in other.items():
+                params[key] = self._copy_param(val)
+        else:
+            params = self._copy_param(other)
+        return params
+
+    def _copy_param(self, param):
+        try:
+            return copy.deepcopy(param)
+        except Exception:
+            # Fallback to casting to unicode this will handle the
+            # python code-like objects that can't be deep-copied
+            return six.text_type(param)
+
+    def __add__(self, other):
+        msg = _('Message objects do not support addition.')
+        raise TypeError(msg)
+
+    def __radd__(self, other):
+        return self.__add__(other)
+
+    def __str__(self):
+        # NOTE(luisg): Logging in python 2.6 tries to str() log records,
+        # and it expects specifically a UnicodeError in order to proceed.
+        msg = _('Message objects do not support str() because they may '
+                'contain non-ascii characters. '
+                'Please use unicode() or translate() instead.')
+        raise UnicodeError(msg)
+
+
+def get_available_languages(domain):
+    """Lists the available languages for the given translation domain.
+
+    :param domain: the domain to get languages for
+    """
+    if domain in _AVAILABLE_LANGUAGES:
+        return copy.copy(_AVAILABLE_LANGUAGES[domain])
+
+    localedir = '%s_LOCALEDIR' % domain.upper()
+    find = lambda x: gettext.find(domain,
+                                  localedir=os.environ.get(localedir),
+                                  languages=[x])
+
+    # NOTE(mrodden): en_US should always be available (and first in case
+    # order matters) since our in-line message strings are en_US
+    language_list = ['en_US']
+    # NOTE(luisg): Babel <1.0 used a function called list(), which was
+    # renamed to locale_identifiers() in >=1.0, the requirements master list
+    # requires >=0.9.6, uncapped, so defensively work with both. We can remove
+    # this check when the master list updates to >=1.0, and update all projects
+    list_identifiers = (getattr(localedata, 'list', None) or
+                        getattr(localedata, 'locale_identifiers'))
+    locale_identifiers = list_identifiers()
+
+    for i in locale_identifiers:
+        if find(i) is not None:
+            language_list.append(i)
+
+    # NOTE(luisg): Babel>=1.0,<1.3 has a bug where some OpenStack supported
+    # locales (e.g. 'zh_CN', and 'zh_TW') aren't supported even though they
+    # are perfectly legitimate locales:
+    #     https://github.com/mitsuhiko/babel/issues/37
+    # In Babel 1.3 they fixed the bug and they support these locales, but
+    # they are still not explicitly "listed" by locale_identifiers().
+    # That is  why we add the locales here explicitly if necessary so that
+    # they are listed as supported.
+    aliases = {'zh': 'zh_CN',
+               'zh_Hant_HK': 'zh_HK',
+               'zh_Hant': 'zh_TW',
+               'fil': 'tl_PH'}
+    for (locale, alias) in six.iteritems(aliases):
+        if locale in language_list and alias not in language_list:
+            language_list.append(alias)
+
+    _AVAILABLE_LANGUAGES[domain] = language_list
+    return copy.copy(language_list)
+
+
+def translate(obj, desired_locale=None):
+    """Gets the translated unicode representation of the given object.
+
+    If the object is not translatable it is returned as-is.
+    If the locale is None the object is translated to the system locale.
+
+    :param obj: the object to translate
+    :param desired_locale: the locale to translate the message to, if None the
+                           default system locale will be used
+    :returns: the translated object in unicode, or the original object if
+              it could not be translated
+    """
+    message = obj
+    if not isinstance(message, Message):
+        # If the object to translate is not already translatable,
+        # let's first get its unicode representation
+        message = six.text_type(obj)
+    if isinstance(message, Message):
+        # Even after unicoding() we still need to check if we are
+        # running with translatable unicode before translating
+        return message.translate(desired_locale)
+    return obj
+
+
+def _translate_args(args, desired_locale=None):
+    """Translates all the translatable elements of the given arguments object.
+
+    This method is used for translating the translatable values in method
+    arguments which include values of tuples or dictionaries.
+    If the object is not a tuple or a dictionary the object itself is
+    translated if it is translatable.
+
+    If the locale is None the object is translated to the system locale.
+
+    :param args: the args to translate
+    :param desired_locale: the locale to translate the args to, if None the
+                           default system locale will be used
+    :returns: a new args object with the translated contents of the original
+    """
+    if isinstance(args, tuple):
+        return tuple(translate(v, desired_locale) for v in args)
+    if isinstance(args, dict):
+        translated_dict = {}
+        for (k, v) in six.iteritems(args):
+            translated_v = translate(v, desired_locale)
+            translated_dict[k] = translated_v
+        return translated_dict
+    return translate(args, desired_locale)
+
+
+class TranslationHandler(handlers.MemoryHandler):
+    """Handler that translates records before logging them.
+
+    The TranslationHandler takes a locale and a target logging.Handler object
+    to forward LogRecord objects to after translating them. This handler
+    depends on Message objects being logged, instead of regular strings.
+
+    The handler can be configured declaratively in the logging.conf as follows:
+
+        [handlers]
+        keys = translatedlog, translator
+
+        [handler_translatedlog]
+        class = handlers.WatchedFileHandler
+        args = ('/var/log/api-localized.log',)
+        formatter = context
+
+        [handler_translator]
+        class = openstack.common.log.TranslationHandler
+        target = translatedlog
+        args = ('zh_CN',)
+
+    If the specified locale is not available in the system, the handler will
+    log in the default locale.
+    """
+
+    def __init__(self, locale=None, target=None):
+        """Initialize a TranslationHandler
+
+        :param locale: locale to use for translating messages
+        :param target: logging.Handler object to forward
+                       LogRecord objects to after translation
+        """
+        # NOTE(luisg): In order to allow this handler to be a wrapper for
+        # other handlers, such as a FileHandler, and still be able to
+        # configure it using logging.conf, this handler has to extend
+        # MemoryHandler because only the MemoryHandlers' logging.conf
+        # parsing is implemented such that it accepts a target handler.
+        handlers.MemoryHandler.__init__(self, capacity=0, target=target)
+        self.locale = locale
+
+    def setFormatter(self, fmt):
+        self.target.setFormatter(fmt)
+
+    def emit(self, record):
+        # We save the message from the original record to restore it
+        # after translation, so other handlers are not affected by this
+        original_msg = record.msg
+        original_args = record.args
+
+        try:
+            self._translate_and_log_record(record)
+        finally:
+            record.msg = original_msg
+            record.args = original_args
+
+    def _translate_and_log_record(self, record):
+        record.msg = translate(record.msg, self.locale)
+
+        # In addition to translating the message, we also need to translate
+        # arguments that were passed to the log method that were not part
+        # of the main message e.g., log.info(_('Some message %s'), this_one))
+        record.args = _translate_args(record.args, self.locale)
+
+        self.target.emit(record)
diff --git a/barbicanclient/openstack/common/importutils.py b/barbicanclient/openstack/common/importutils.py
index dbee325..befd710 100644
--- a/barbicanclient/openstack/common/importutils.py
+++ b/barbicanclient/openstack/common/importutils.py
@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2011 OpenStack Foundation.
 # All Rights Reserved.
 #
@@ -41,8 +39,9 @@ def import_object(import_str, *args, **kwargs):
 
 
 def import_object_ns(name_space, import_str, *args, **kwargs):
-    """
-    Import a class and return an instance of it, first by trying
+    """Tries to import object from default namespace.
+
+    Imports a class and return an instance of it, first by trying
     to find the class in a default namespace, then failing back to
     a full path if not found in the default namespace.
     """
@@ -59,6 +58,13 @@ def import_module(import_str):
     return sys.modules[import_str]
 
 
+def import_versioned_module(version, submodule=None):
+    module = 'barbicanclient.v%s' % version
+    if submodule:
+        module = '.'.join((module, submodule))
+    return import_module(module)
+
+
 def try_import(import_str, default=None):
     """Try to import a module and if it fails return default."""
     try:
diff --git a/barbicanclient/openstack/common/jsonutils.py b/barbicanclient/openstack/common/jsonutils.py
index 6923ae7..5d7c425 100644
--- a/barbicanclient/openstack/common/jsonutils.py
+++ b/barbicanclient/openstack/common/jsonutils.py
@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2010 United States Government as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 # Copyright 2011 Justin Santa Barbara
@@ -38,13 +36,15 @@ import functools
 import inspect
 import itertools
 import json
-import types
-import xmlrpclib
 
 import six
+import six.moves.xmlrpc_client as xmlrpclib
 
+from barbicanclient.openstack.common import gettextutils
+from barbicanclient.openstack.common import importutils
 from barbicanclient.openstack.common import timeutils
 
+netaddr = importutils.try_import("netaddr")
 
 _nasty_type_tests = [inspect.ismodule, inspect.isclass, inspect.ismethod,
                      inspect.isfunction, inspect.isgeneratorfunction,
@@ -52,7 +52,8 @@ _nasty_type_tests = [inspect.ismodule, inspect.isclass, inspect.ismethod,
                      inspect.iscode, inspect.isbuiltin, inspect.isroutine,
                      inspect.isabstract]
 
-_simple_types = (types.NoneType, int, basestring, bool, float, long)
+_simple_types = (six.string_types + six.integer_types
+                 + (type(None), bool, float))
 
 
 def to_primitive(value, convert_instances=False, convert_datetime=True,
@@ -117,7 +118,7 @@ def to_primitive(value, convert_instances=False, convert_datetime=True,
                                       level=level,
                                       max_depth=max_depth)
         if isinstance(value, dict):
-            return dict((k, recursive(v)) for k, v in value.iteritems())
+            return dict((k, recursive(v)) for k, v in six.iteritems(value))
         elif isinstance(value, (list, tuple)):
             return [recursive(lv) for lv in value]
 
@@ -129,6 +130,8 @@ def to_primitive(value, convert_instances=False, convert_datetime=True,
 
         if convert_datetime and isinstance(value, datetime.datetime):
             return timeutils.strtime(value)
+        elif isinstance(value, gettextutils.Message):
+            return value.data
         elif hasattr(value, 'iteritems'):
             return recursive(dict(value.iteritems()), level=level + 1)
         elif hasattr(value, '__iter__'):
@@ -137,6 +140,8 @@ def to_primitive(value, convert_instances=False, convert_datetime=True,
             # Likely an instance of something. Watch for cycles.
             # Ignore class member vars.
             return recursive(value.__dict__, level=level + 1)
+        elif netaddr and isinstance(value, netaddr.IPAddress):
+            return six.text_type(value)
         else:
             if any(test(value) for test in _nasty_type_tests):
                 return six.text_type(value)
diff --git a/barbicanclient/openstack/common/local.py b/barbicanclient/openstack/common/local.py
deleted file mode 100644
index f1bfc82..0000000
--- a/barbicanclient/openstack/common/local.py
+++ /dev/null
@@ -1,48 +0,0 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
-# Copyright 2011 OpenStack Foundation.
-# All Rights Reserved.
-#
-#    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.
-
-"""Greenthread local storage of variables using weak references"""
-
-import weakref
-
-from eventlet import corolocal
-
-
-class WeakLocal(corolocal.local):
-    def __getattribute__(self, attr):
-        rval = corolocal.local.__getattribute__(self, attr)
-        if rval:
-            # NOTE(mikal): this bit is confusing. What is stored is a weak
-            # reference, not the value itself. We therefore need to lookup
-            # the weak reference and return the inner value here.
-            rval = rval()
-        return rval
-
-    def __setattr__(self, attr, value):
-        value = weakref.ref(value)
-        return corolocal.local.__setattr__(self, attr, value)
-
-
-# NOTE(mikal): the name "store" should be deprecated in the future
-store = WeakLocal()
-
-# A "weak" store uses weak references and allows an object to fall out of scope
-# when it falls out of scope in the code that uses the thread local storage. A
-# "strong" store will hold a reference to the object so that it never falls out
-# of scope.
-weak_store = WeakLocal()
-strong_store = corolocal.local
diff --git a/barbicanclient/openstack/common/setup.py b/barbicanclient/openstack/common/setup.py
deleted file mode 100644
index 03b0675..0000000
--- a/barbicanclient/openstack/common/setup.py
+++ /dev/null
@@ -1,369 +0,0 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
-# Copyright 2011 OpenStack Foundation.
-# Copyright 2012-2013 Hewlett-Packard Development Company, L.P.
-# All Rights Reserved.
-#
-#    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.
-
-"""
-Utilities with minimum-depends for use in setup.py
-"""
-
-from __future__ import print_function
-
-import email
-import os
-import re
-import subprocess
-import sys
-
-from setuptools.command import sdist
-
-
-def parse_mailmap(mailmap='.mailmap'):
-    mapping = {}
-    if os.path.exists(mailmap):
-        with open(mailmap, 'r') as fp:
-            for l in fp:
-                try:
-                    canonical_email, alias = re.match(
-                        r'[^#]*?(<.+>).*(<.+>).*', l).groups()
-                except AttributeError:
-                    continue
-                mapping[alias] = canonical_email
-    return mapping
-
-
-def _parse_git_mailmap(git_dir, mailmap='.mailmap'):
-    mailmap = os.path.join(os.path.dirname(git_dir), mailmap)
-    return parse_mailmap(mailmap)
-
-
-def canonicalize_emails(changelog, mapping):
-    """Takes in a string and an email alias mapping and replaces all
-       instances of the aliases in the string with their real email.
-    """
-    for alias, email_address in mapping.iteritems():
-        changelog = changelog.replace(alias, email_address)
-    return changelog
-
-
-# Get requirements from the first file that exists
-def get_reqs_from_files(requirements_files):
-    for requirements_file in requirements_files:
-        if os.path.exists(requirements_file):
-            with open(requirements_file, 'r') as fil:
-                return fil.read().split('\n')
-    return []
-
-
-def parse_requirements(requirements_files=['requirements.txt',
-                                           'tools/pip-requires']):
-    requirements = []
-    for line in get_reqs_from_files(requirements_files):
-        # For the requirements list, we need to inject only the portion
-        # after egg= so that distutils knows the package it's looking for
-        # such as:
-        # -e git://github.com/openstack/nova/master#egg=nova
-        if re.match(r'\s*-e\s+', line):
-            requirements.append(re.sub(r'\s*-e\s+.*#egg=(.*)$', r'\1',
-                                line))
-        # such as:
-        # http://github.com/openstack/nova/zipball/master#egg=nova
-        elif re.match(r'\s*https?:', line):
-            requirements.append(re.sub(r'\s*https?:.*#egg=(.*)$', r'\1',
-                                line))
-        # -f lines are for index locations, and don't get used here
-        elif re.match(r'\s*-f\s+', line):
-            pass
-        # argparse is part of the standard library starting with 2.7
-        # adding it to the requirements list screws distro installs
-        elif line == 'argparse' and sys.version_info >= (2, 7):
-            pass
-        else:
-            requirements.append(line)
-
-    return requirements
-
-
-def parse_dependency_links(requirements_files=['requirements.txt',
-                                               'tools/pip-requires']):
-    dependency_links = []
-    # dependency_links inject alternate locations to find packages listed
-    # in requirements
-    for line in get_reqs_from_files(requirements_files):
-        # skip comments and blank lines
-        if re.match(r'(\s*#)|(\s*$)', line):
-            continue
-        # lines with -e or -f need the whole line, minus the flag
-        if re.match(r'\s*-[ef]\s+', line):
-            dependency_links.append(re.sub(r'\s*-[ef]\s+', '', line))
-        # lines that are only urls can go in unmolested
-        elif re.match(r'\s*https?:', line):
-            dependency_links.append(line)
-    return dependency_links
-
-
-def _run_shell_command(cmd, throw_on_error=False):
-    if os.name == 'nt':
-        output = subprocess.Popen(["cmd.exe", "/C", cmd],
-                                  stdout=subprocess.PIPE,
-                                  stderr=subprocess.PIPE)
-    else:
-        output = subprocess.Popen(["/bin/sh", "-c", cmd],
-                                  stdout=subprocess.PIPE,
-                                  stderr=subprocess.PIPE)
-    out = output.communicate()
-    if output.returncode and throw_on_error:
-        raise Exception("%s returned %d" % cmd, output.returncode)
-    if len(out) == 0:
-        return None
-    if len(out[0].strip()) == 0:
-        return None
-    return out[0].strip()
-
-
-def _get_git_directory():
-    parent_dir = os.path.dirname(__file__)
-    while True:
-        git_dir = os.path.join(parent_dir, '.git')
-        if os.path.exists(git_dir):
-            return git_dir
-        parent_dir, child = os.path.split(parent_dir)
-        if not child:   # reached to root dir
-            return None
-
-
-def write_git_changelog():
-    """Write a changelog based on the git changelog."""
-    new_changelog = 'ChangeLog'
-    git_dir = _get_git_directory()
-    if not os.getenv('SKIP_WRITE_GIT_CHANGELOG'):
-        if git_dir:
-            git_log_cmd = 'git --git-dir=%s log' % git_dir
-            changelog = _run_shell_command(git_log_cmd)
-            mailmap = _parse_git_mailmap(git_dir)
-            with open(new_changelog, "w") as changelog_file:
-                changelog_file.write(canonicalize_emails(changelog, mailmap))
-    else:
-        open(new_changelog, 'w').close()
-
-
-def generate_authors():
-    """Create AUTHORS file using git commits."""
-    jenkins_email = 'jenkins@review.(openstack|stackforge).org'
-    old_authors = 'AUTHORS.in'
-    new_authors = 'AUTHORS'
-    git_dir = _get_git_directory()
-    if not os.getenv('SKIP_GENERATE_AUTHORS'):
-        if git_dir:
-            # don't include jenkins email address in AUTHORS file
-            git_log_cmd = ("git --git-dir=" + git_dir +
-                           " log --format='%aN <%aE>' | sort -u | "
-                           "egrep -v '" + jenkins_email + "'")
-            changelog = _run_shell_command(git_log_cmd)
-            signed_cmd = ("git --git-dir=" + git_dir +
-                          " log | grep -i Co-authored-by: | sort -u")
-            signed_entries = _run_shell_command(signed_cmd)
-            if signed_entries:
-                new_entries = "\n".join(
-                    [signed.split(":", 1)[1].strip()
-                     for signed in signed_entries.split("\n") if signed])
-                changelog = "\n".join((changelog, new_entries))
-            mailmap = _parse_git_mailmap(git_dir)
-            with open(new_authors, 'w') as new_authors_fh:
-                new_authors_fh.write(canonicalize_emails(changelog, mailmap))
-                if os.path.exists(old_authors):
-                    with open(old_authors, "r") as old_authors_fh:
-                        new_authors_fh.write('\n' + old_authors_fh.read())
-    else:
-        open(new_authors, 'w').close()
-
-
-_rst_template = """%(heading)s
-%(underline)s
-
-.. automodule:: %(module)s
-  :members:
-  :undoc-members:
-  :show-inheritance:
-"""
-
-
-def get_cmdclass():
-    """Return dict of commands to run from setup.py."""
-
-    cmdclass = dict()
-
-    def _find_modules(arg, dirname, files):
-        for filename in files:
-            if filename.endswith('.py') and filename != '__init__.py':
-                arg["%s.%s" % (dirname.replace('/', '.'),
-                               filename[:-3])] = True
-
-    class LocalSDist(sdist.sdist):
-        """Builds the ChangeLog and Authors files from VC first."""
-
-        def run(self):
-            write_git_changelog()
-            generate_authors()
-            # sdist.sdist is an old style class, can't use super()
-            sdist.sdist.run(self)
-
-    cmdclass['sdist'] = LocalSDist
-
-    # If Sphinx is installed on the box running setup.py,
-    # enable setup.py to build the documentation, otherwise,
-    # just ignore it
-    try:
-        from sphinx.setup_command import BuildDoc
-
-        class LocalBuildDoc(BuildDoc):
-
-            builders = ['html', 'man']
-
-            def generate_autoindex(self):
-                print("**Autodocumenting from %s" % os.path.abspath(os.curdir))
-                modules = {}
-                option_dict = self.distribution.get_option_dict('build_sphinx')
-                source_dir = os.path.join(option_dict['source_dir'][1], 'api')
-                if not os.path.exists(source_dir):
-                    os.makedirs(source_dir)
-                for pkg in self.distribution.packages:
-                    if '.' not in pkg:
-                        os.path.walk(pkg, _find_modules, modules)
-                module_list = modules.keys()
-                module_list.sort()
-                autoindex_filename = os.path.join(source_dir, 'autoindex.rst')
-                with open(autoindex_filename, 'w') as autoindex:
-                    autoindex.write(""".. toctree::
-   :maxdepth: 1
-
-""")
-                    for module in module_list:
-                        output_filename = os.path.join(source_dir,
-                                                       "%s.rst" % module)
-                        heading = "The :mod:`%s` Module" % module
-                        underline = "=" * len(heading)
-                        values = dict(module=module, heading=heading,
-                                      underline=underline)
-
-                        print("Generating %s" % output_filename)
-                        with open(output_filename, 'w') as output_file:
-                            output_file.write(_rst_template % values)
-                        autoindex.write("   %s.rst\n" % module)
-
-            def run(self):
-                if not os.getenv('SPHINX_DEBUG'):
-                    self.generate_autoindex()
-
-                for builder in self.builders:
-                    self.builder = builder
-                    self.finalize_options()
-                    self.project = self.distribution.get_name()
-                    self.version = self.distribution.get_version()
-                    self.release = self.distribution.get_version()
-                    BuildDoc.run(self)
-
-        class LocalBuildLatex(LocalBuildDoc):
-            builders = ['latex']
-
-        cmdclass['build_sphinx'] = LocalBuildDoc
-        cmdclass['build_sphinx_latex'] = LocalBuildLatex
-    except ImportError:
-        pass
-
-    return cmdclass
-
-
-def _get_revno(git_dir):
-    """Return the number of commits since the most recent tag.
-
-    We use git-describe to find this out, but if there are no
-    tags then we fall back to counting commits since the beginning
-    of time.
-    """
-    describe = _run_shell_command(
-        "git --git-dir=%s describe --always" % git_dir)
-    if "-" in describe:
-        return describe.rsplit("-", 2)[-2]
-
-    # no tags found
-    revlist = _run_shell_command(
-        "git --git-dir=%s rev-list --abbrev-commit HEAD" % git_dir)
-    return len(revlist.splitlines())
-
-
-def _get_version_from_git(pre_version):
-    """Return a version which is equal to the tag that's on the current
-    revision if there is one, or tag plus number of additional revisions
-    if the current revision has no tag."""
-
-    git_dir = _get_git_directory()
-    if git_dir:
-        if pre_version:
-            try:
-                return _run_shell_command(
-                    "git --git-dir=" + git_dir + " describe --exact-match",
-                    throw_on_error=True).replace('-', '.')
-            except Exception:
-                sha = _run_shell_command(
-                    "git --git-dir=" + git_dir + " log -n1 --pretty=format:%h")
-                return "%s.a%s.g%s" % (pre_version, _get_revno(git_dir), sha)
-        else:
-            return _run_shell_command(
-                "git --git-dir=" + git_dir + " describe --always").replace(
-                    '-', '.')
-    return None
-
-
-def _get_version_from_pkg_info(package_name):
-    """Get the version from PKG-INFO file if we can."""
-    try:
-        pkg_info_file = open('PKG-INFO', 'r')
-    except (IOError, OSError):
-        return None
-    try:
-        pkg_info = email.message_from_file(pkg_info_file)
-    except email.MessageError:
-        return None
-    # Check to make sure we're in our own dir
-    if pkg_info.get('Name', None) != package_name:
-        return None
-    return pkg_info.get('Version', None)
-
-
-def get_version(package_name, pre_version=None):
-    """Get the version of the project. First, try getting it from PKG-INFO, if
-    it exists. If it does, that means we're in a distribution tarball or that
-    install has happened. Otherwise, if there is no PKG-INFO file, pull the
-    version from git.
-
-    We do not support setup.py version sanity in git archive tarballs, nor do
-    we support packagers directly sucking our git repo into theirs. We expect
-    that a source tarball be made from our git repo - or that if someone wants
-    to make a source tarball from a fork of our repo with additional tags in it
-    that they understand and desire the results of doing that.
-    """
-    version = os.environ.get("OSLO_PACKAGE_VERSION", None)
-    if version:
-        return version
-    version = _get_version_from_pkg_info(package_name)
-    if version:
-        return version
-    version = _get_version_from_git(pre_version)
-    if version:
-        return version
-    raise Exception("Versioning for this project requires either an sdist"
-                    " tarball, or access to an upstream git repository.")
diff --git a/barbicanclient/openstack/common/timeutils.py b/barbicanclient/openstack/common/timeutils.py
index 6094365..52688a0 100644
--- a/barbicanclient/openstack/common/timeutils.py
+++ b/barbicanclient/openstack/common/timeutils.py
@@ -1,5 +1,3 @@
-# vim: tabstop=4 shiftwidth=4 softtabstop=4
-
 # Copyright 2011 OpenStack Foundation.
 # All Rights Reserved.
 #
@@ -21,8 +19,10 @@ Time related utilities and helper functions.
 
 import calendar
 import datetime
+import time
 
 import iso8601
+import six
 
 
 # ISO 8601 extended time format with microseconds
@@ -32,7 +32,7 @@ PERFECT_TIME_FORMAT = _ISO8601_TIME_FORMAT_SUBSECOND
 
 
 def isotime(at=None, subsecond=False):
-    """Stringify time in ISO 8601 format"""
+    """Stringify time in ISO 8601 format."""
     if not at:
         at = utcnow()
     st = at.strftime(_ISO8601_TIME_FORMAT
@@ -44,13 +44,13 @@ def isotime(at=None, subsecond=False):
 
 
 def parse_isotime(timestr):
-    """Parse time from ISO 8601 format"""
+    """Parse time from ISO 8601 format."""
     try:
         return iso8601.parse_date(timestr)
     except iso8601.ParseError as e:
-        raise ValueError(e.message)
+        raise ValueError(six.text_type(e))
     except TypeError as e:
-        raise ValueError(e.message)
+        raise ValueError(six.text_type(e))
 
 
 def strtime(at=None, fmt=PERFECT_TIME_FORMAT):
@@ -66,7 +66,7 @@ def parse_strtime(timestr, fmt=PERFECT_TIME_FORMAT):
 
 
 def normalize_time(timestamp):
-    """Normalize time in arbitrary timezone to UTC naive object"""
+    """Normalize time in arbitrary timezone to UTC naive object."""
     offset = timestamp.utcoffset()
     if offset is None:
         return timestamp
@@ -75,20 +75,31 @@ def normalize_time(timestamp):
 
 def is_older_than(before, seconds):
     """Return True if before is older than seconds."""
-    if isinstance(before, basestring):
+    if isinstance(before, six.string_types):
         before = parse_strtime(before).replace(tzinfo=None)
+    else:
+        before = before.replace(tzinfo=None)
+
     return utcnow() - before > datetime.timedelta(seconds=seconds)
 
 
 def is_newer_than(after, seconds):
     """Return True if after is newer than seconds."""
-    if isinstance(after, basestring):
+    if isinstance(after, six.string_types):
         after = parse_strtime(after).replace(tzinfo=None)
+    else:
+        after = after.replace(tzinfo=None)
+
     return after - utcnow() > datetime.timedelta(seconds=seconds)
 
 
 def utcnow_ts():
     """Timestamp version of our utcnow function."""
+    if utcnow.override_time is None:
+        # NOTE(kgriffs): This is several times faster
+        # than going through calendar.timegm(...)
+        return int(time.time())
+
     return calendar.timegm(utcnow().timetuple())
 
 
@@ -103,19 +114,22 @@ def utcnow():
 
 
 def iso8601_from_timestamp(timestamp):
-    """Returns a iso8601 formated date from timestamp"""
+    """Returns a iso8601 formatted date from timestamp."""
     return isotime(datetime.datetime.utcfromtimestamp(timestamp))
 
 
 utcnow.override_time = None
 
 
-def set_time_override(override_time=datetime.datetime.utcnow()):
-    """
-    Override utils.utcnow to return a constant time or a list thereof,
-    one at a time.
+def set_time_override(override_time=None):
+    """Overrides utils.utcnow.
+
+    Make it return a constant time or a list thereof, one at a time.
+
+    :param override_time: datetime instance or list thereof. If not
+                          given, defaults to the current UTC time.
     """
-    utcnow.override_time = override_time
+    utcnow.override_time = override_time or datetime.datetime.utcnow()
 
 
 def advance_time_delta(timedelta):
@@ -141,7 +155,8 @@ def clear_time_override():
 def marshall_now(now=None):
     """Make an rpc-safe datetime with microseconds.
 
-    Note: tzinfo is stripped, but not required for relative times."""
+    Note: tzinfo is stripped, but not required for relative times.
+    """
     if not now:
         now = utcnow()
     return dict(day=now.day, month=now.month, year=now.year, hour=now.hour,
@@ -161,11 +176,21 @@ def unmarshall_time(tyme):
 
 
 def delta_seconds(before, after):
-    """
+    """Return the difference between two timing objects.
+
     Compute the difference in seconds between two date, time, or
     datetime objects (as a float, to microsecond resolution).
     """
     delta = after - before
+    return total_seconds(delta)
+
+
+def total_seconds(delta):
+    """Return the total seconds of datetime.timedelta object.
+
+    Compute total seconds of datetime.timedelta, datetime.timedelta
+    doesn't have method total_seconds in Python2.6, calculate it manually.
+    """
     try:
         return delta.total_seconds()
     except AttributeError:
@@ -174,11 +199,10 @@ def delta_seconds(before, after):
 
 
 def is_soon(dt, window):
-    """
-    Determines if time is going to happen in the next window seconds.
+    """Determines if time is going to happen in the next window seconds.
 
-    :params dt: the time
-    :params window: minimum seconds to remain to consider the time not soon
+    :param dt: the time
+    :param window: minimum seconds to remain to consider the time not soon
 
     :return: True if expiration is within the given duration
     """
diff --git a/barbicanclient/openstack/common/version.py b/barbicanclient/openstack/common/version.py
deleted file mode 100644
index cfdb8f6..0000000
--- a/barbicanclient/openstack/common/version.py
+++ /dev/null
@@ -1,94 +0,0 @@
-
-#    Copyright 2012 OpenStack Foundation
-#    Copyright 2012-2013 Hewlett-Packard Development Company, L.P.
-#
-#    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.
-
-"""
-Utilities for consuming the version from pkg_resources.
-"""
-
-import pkg_resources
-
-
-class VersionInfo(object):
-
-    def __init__(self, package):
-        """Object that understands versioning for a package
-        :param package: name of the python package, such as glance, or
-                        python-glanceclient
-        """
-        self.package = package
-        self.release = None
-        self.version = None
-        self._cached_version = None
-
-    def __str__(self):
-        """Make the VersionInfo object behave like a string."""
-        return self.version_string()
-
-    def __repr__(self):
-        """Include the name."""
-        return "VersionInfo(%s:%s)" % (self.package, self.version_string())
-
-    def _get_version_from_pkg_resources(self):
-        """Get the version of the package from the pkg_resources record
-        associated with the package."""
-        try:
-            requirement = pkg_resources.Requirement.parse(self.package)
-            provider = pkg_resources.get_provider(requirement)
-            return provider.version
-        except pkg_resources.DistributionNotFound:
-            # The most likely cause for this is running tests in a tree
-            # produced from a tarball where the package itself has not been
-            # installed into anything. Revert to setup-time logic.
-            from barbicanclient.openstack.common import setup
-            return setup.get_version(self.package)
-
-    def release_string(self):
-        """Return the full version of the package including suffixes indicating
-        VCS status.
-        """
-        if self.release is None:
-            self.release = self._get_version_from_pkg_resources()
-
-        return self.release
-
-    def version_string(self):
-        """Return the short version minus any alpha/beta tags."""
-        if self.version is None:
-            parts = []
-            for part in self.release_string().split('.'):
-                if part[0].isdigit():
-                    parts.append(part)
-                else:
-                    break
-            self.version = ".".join(parts)
-
-        return self.version
-
-    # Compatibility functions
-    canonical_version_string = version_string
-    version_string_with_vcs = release_string
-
-    def cached_version_string(self, prefix=""):
-        """Generate an object which will expand in a string context to
-        the results of version_string(). We do this so that don't
-        call into pkg_resources every time we start up a program when
-        passing version information into the CONF constructor, but
-        rather only do the calculation when and if a version is requested
-        """
-        if not self._cached_version:
-            self._cached_version = "%s%s" % (prefix,
-                                             self.version_string())
-        return self._cached_version
diff --git a/requirements.txt b/requirements.txt
index 1aa7ffb..633e333 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,5 @@
 pbr>=0.5.21,<1.0
 
 argparse
-eventlet>=0.13.0
 requests>=1.2.3
 python-keystoneclient>=0.3.2