Sync with oslo-incubator (git 6827012)
This syncs the common/ modules with oslo-incubator, which brings a few hacking fixes and py3k compat fixes. Change-Id: I948aafebd25ae0b3aad119c41d0a121c8b9c5ae8
This commit is contained in:
parent
4e28e4d9dc
commit
f7358a0d13
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@ -1,5 +1,3 @@
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 OpenStack Foundation.
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# Copyright 2012, Red Hat, Inc.
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#
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@ -19,16 +17,17 @@
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Exception related utilities.
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"""
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import contextlib
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import logging
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import sys
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import time
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import traceback
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import six
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from glance.openstack.common.gettextutils import _
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@contextlib.contextmanager
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def save_and_reraise_exception():
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class save_and_reraise_exception(object):
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"""Save current exception, run some code and then re-raise.
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In some cases the exception context can be cleared, resulting in None
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@ -40,12 +39,61 @@ def save_and_reraise_exception():
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To work around this, we save the exception state, run handler code, and
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then re-raise the original exception. If another exception occurs, the
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saved exception is logged and the new exception is re-raised.
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In some cases the caller may not want to re-raise the exception, and
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for those circumstances this context provides a reraise flag that
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can be used to suppress the exception. For example::
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except Exception:
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with save_and_reraise_exception() as ctxt:
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decide_if_need_reraise()
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if not should_be_reraised:
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ctxt.reraise = False
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"""
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type_, value, tb = sys.exc_info()
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try:
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yield
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except Exception:
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logging.error(_('Original exception being dropped: %s'),
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traceback.format_exception(type_, value, tb))
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raise
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raise type_, value, tb
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def __init__(self):
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self.reraise = True
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def __enter__(self):
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self.type_, self.value, self.tb, = sys.exc_info()
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return self
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def __exit__(self, exc_type, exc_val, exc_tb):
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if exc_type is not None:
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logging.error(_('Original exception being dropped: %s'),
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traceback.format_exception(self.type_,
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self.value,
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self.tb))
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return False
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if self.reraise:
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six.reraise(self.type_, self.value, self.tb)
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def forever_retry_uncaught_exceptions(infunc):
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def inner_func(*args, **kwargs):
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last_log_time = 0
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last_exc_message = None
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exc_count = 0
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while True:
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try:
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return infunc(*args, **kwargs)
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except Exception as exc:
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this_exc_message = six.u(str(exc))
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if this_exc_message == last_exc_message:
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exc_count += 1
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else:
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exc_count = 1
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# Do not log any more frequently than once a minute unless
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# the exception message changes
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cur_time = int(time.time())
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if (cur_time - last_log_time > 60 or
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this_exc_message != last_exc_message):
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logging.exception(
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_('Unexpected exception occurred %d time(s)... '
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'retrying.') % exc_count)
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last_log_time = cur_time
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last_exc_message = this_exc_message
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exc_count = 0
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# This should be a very rare event. In case it isn't, do
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# a sleep.
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time.sleep(1)
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return inner_func
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@ -1,5 +1,3 @@
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2011 OpenStack Foundation.
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# All Rights Reserved.
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#
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@ -19,9 +17,10 @@
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import contextlib
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import errno
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import os
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import tempfile
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from glance.openstack.common import excutils
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from glance.openstack.common.gettextutils import _ # noqa
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from glance.openstack.common.gettextutils import _
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from glance.openstack.common import log as logging
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LOG = logging.getLogger(__name__)
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@ -69,33 +68,34 @@ def read_cached_file(filename, force_reload=False):
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return (reloaded, cache_info['data'])
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def delete_if_exists(path):
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def delete_if_exists(path, remove=os.unlink):
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"""Delete a file, but ignore file not found error.
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:param path: File to delete
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:param remove: Optional function to remove passed path
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"""
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try:
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os.unlink(path)
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remove(path)
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except OSError as e:
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if e.errno == errno.ENOENT:
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return
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else:
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if e.errno != errno.ENOENT:
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raise
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@contextlib.contextmanager
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def remove_path_on_error(path):
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def remove_path_on_error(path, remove=delete_if_exists):
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"""Protect code that wants to operate on PATH atomically.
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Any exception will cause PATH to be removed.
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:param path: File to work with
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:param remove: Optional function to remove passed path
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"""
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try:
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yield
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except Exception:
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with excutils.save_and_reraise_exception():
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delete_if_exists(path)
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remove(path)
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def file_open(*args, **kwargs):
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@ -108,3 +108,30 @@ def file_open(*args, **kwargs):
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state at all (for unit tests)
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"""
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return file(*args, **kwargs)
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def write_to_tempfile(content, path=None, suffix='', prefix='tmp'):
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"""Create temporary file or use existing file.
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This util is needed for creating temporary file with
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specified content, suffix and prefix. If path is not None,
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it will be used for writing content. If the path doesn't
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exist it'll be created.
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:param content: content for temporary file.
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:param path: same as parameter 'dir' for mkstemp
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:param suffix: same as parameter 'suffix' for mkstemp
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:param prefix: same as parameter 'prefix' for mkstemp
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For example: it can be used in database tests for creating
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configuration files.
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"""
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if path:
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ensure_tree(path)
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(fd, path) = tempfile.mkstemp(suffix=suffix, dir=path, prefix=prefix)
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try:
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os.write(fd, content)
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finally:
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os.close(fd)
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return path
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@ -1,8 +1,6 @@
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 Red Hat, Inc.
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# All Rights Reserved.
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# Copyright 2013 IBM Corp.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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@ -26,19 +24,46 @@ Usual usage in an openstack.common module:
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import copy
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import gettext
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import logging.handlers
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import logging
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import os
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import UserString
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import re
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try:
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import UserString as _userString
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except ImportError:
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import collections as _userString
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from babel import localedata
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import six
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_localedir = os.environ.get('glance'.upper() + '_LOCALEDIR')
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_t = gettext.translation('glance', localedir=_localedir, fallback=True)
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_AVAILABLE_LANGUAGES = {}
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USE_LAZY = False
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def enable_lazy():
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"""Convenience function for configuring _() to use lazy gettext
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Call this at the start of execution to enable the gettextutils._
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function to use lazy gettext functionality. This is useful if
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your project is importing _ directly instead of using the
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gettextutils.install() way of importing the _ function.
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"""
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global USE_LAZY
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USE_LAZY = True
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def _(msg):
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return _t.ugettext(msg)
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if USE_LAZY:
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return Message(msg, 'glance')
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else:
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if six.PY3:
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return _t.gettext(msg)
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return _t.ugettext(msg)
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def install(domain):
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def install(domain, lazy=False):
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"""Install a _() function using the given translation domain.
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Given a translation domain, install a _() function using gettext's
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@ -48,52 +73,60 @@ def install(domain):
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overriding the default localedir (e.g. /usr/share/locale) using
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a translation-domain-specific environment variable (e.g.
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NOVA_LOCALEDIR).
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:param domain: the translation domain
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:param lazy: indicates whether or not to install the lazy _() function.
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The lazy _() introduces a way to do deferred translation
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of messages by installing a _ that builds Message objects,
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instead of strings, which can then be lazily translated into
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any available locale.
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"""
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gettext.install(domain,
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localedir=os.environ.get(domain.upper() + '_LOCALEDIR'),
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unicode=True)
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if lazy:
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# NOTE(mrodden): Lazy gettext functionality.
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#
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# The following introduces a deferred way to do translations on
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# messages in OpenStack. We override the standard _() function
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# and % (format string) operation to build Message objects that can
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# later be translated when we have more information.
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#
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# Also included below is an example LocaleHandler that translates
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# Messages to an associated locale, effectively allowing many logs,
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# each with their own locale.
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def _lazy_gettext(msg):
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"""Create and return a Message object.
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Lazy gettext function for a given domain, it is a factory method
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for a project/module to get a lazy gettext function for its own
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translation domain (i.e. nova, glance, cinder, etc.)
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Message encapsulates a string so that we can translate
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it later when needed.
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"""
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return Message(msg, domain)
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from six import moves
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moves.builtins.__dict__['_'] = _lazy_gettext
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else:
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localedir = '%s_LOCALEDIR' % domain.upper()
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if six.PY3:
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gettext.install(domain,
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localedir=os.environ.get(localedir))
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else:
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gettext.install(domain,
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localedir=os.environ.get(localedir),
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unicode=True)
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"""
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Lazy gettext functionality.
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The following is an attempt to introduce a deferred way
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to do translations on messages in OpenStack. We attempt to
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override the standard _() function and % (format string) operation
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to build Message objects that can later be translated when we have
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more information. Also included is an example LogHandler that
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translates Messages to an associated locale, effectively allowing
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many logs, each with their own locale.
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"""
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def get_lazy_gettext(domain):
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"""Assemble and return a lazy gettext function for a given domain.
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Factory method for a project/module to get a lazy gettext function
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for its own translation domain (i.e. nova, glance, cinder, etc.)
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"""
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def _lazy_gettext(msg):
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"""Create and return a Message object.
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Message encapsulates a string so that we can translate it later when
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needed.
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"""
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return Message(msg, domain)
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return _lazy_gettext
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class Message(UserString.UserString, object):
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class Message(_userString.UserString, object):
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"""Class used to encapsulate translatable messages."""
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def __init__(self, msg, domain):
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# _msg is the gettext msgid and should never change
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self._msg = msg
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self._left_extra_msg = ''
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self._right_extra_msg = ''
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self._locale = None
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self.params = None
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self.locale = None
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self.domain = domain
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@property
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@ -113,14 +146,68 @@ class Message(UserString.UserString, object):
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localedir=localedir,
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fallback=True)
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if six.PY3:
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ugettext = lang.gettext
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else:
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ugettext = lang.ugettext
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full_msg = (self._left_extra_msg +
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lang.ugettext(self._msg) +
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ugettext(self._msg) +
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self._right_extra_msg)
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if self.params is not None:
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full_msg = full_msg % self.params
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return unicode(full_msg)
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return six.text_type(full_msg)
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@property
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def locale(self):
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return self._locale
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@locale.setter
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def locale(self, value):
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self._locale = value
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if not self.params:
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return
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# This Message object may have been constructed with one or more
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# Message objects as substitution parameters, given as a single
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# Message, or a tuple or Map containing some, so when setting the
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# locale for this Message we need to set it for those Messages too.
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if isinstance(self.params, Message):
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self.params.locale = value
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return
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if isinstance(self.params, tuple):
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for param in self.params:
|
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if isinstance(param, Message):
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param.locale = value
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return
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if isinstance(self.params, dict):
|
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for param in self.params.values():
|
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if isinstance(param, Message):
|
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param.locale = value
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def _save_dictionary_parameter(self, dict_param):
|
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full_msg = self.data
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# look for %(blah) fields in string;
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# ignore %% and deal with the
|
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# case where % is first character on the line
|
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keys = re.findall('(?:[^%]|^)?%\((\w*)\)[a-z]', full_msg)
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|
||||
# if we don't find any %(blah) blocks but have a %s
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if not keys and re.findall('(?:[^%]|^)%[a-z]', full_msg):
|
||||
# apparently the full dictionary is the parameter
|
||||
params = copy.deepcopy(dict_param)
|
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else:
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params = {}
|
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for key in keys:
|
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try:
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params[key] = copy.deepcopy(dict_param[key])
|
||||
except TypeError:
|
||||
# cast uncopyable thing to unicode string
|
||||
params[key] = six.text_type(dict_param[key])
|
||||
|
||||
return params
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||||
|
||||
def _save_parameters(self, other):
|
||||
# we check for None later to see if
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||||
|
@ -128,8 +215,16 @@ class Message(UserString.UserString, object):
|
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# so encapsulate if our parameter is actually None
|
||||
if other is None:
|
||||
self.params = (other, )
|
||||
elif isinstance(other, dict):
|
||||
self.params = self._save_dictionary_parameter(other)
|
||||
else:
|
||||
self.params = copy.deepcopy(other)
|
||||
# fallback to casting to unicode,
|
||||
# this will handle the problematic python code-like
|
||||
# objects that cannot be deep-copied
|
||||
try:
|
||||
self.params = copy.deepcopy(other)
|
||||
except TypeError:
|
||||
self.params = six.text_type(other)
|
||||
|
||||
return self
|
||||
|
||||
|
@ -138,11 +233,13 @@ class Message(UserString.UserString, object):
|
|||
return self.data
|
||||
|
||||
def __str__(self):
|
||||
if six.PY3:
|
||||
return self.__unicode__()
|
||||
return self.data.encode('utf-8')
|
||||
|
||||
def __getstate__(self):
|
||||
to_copy = ['_msg', '_right_extra_msg', '_left_extra_msg',
|
||||
'domain', 'params', 'locale']
|
||||
'domain', 'params', '_locale']
|
||||
new_dict = self.__dict__.fromkeys(to_copy)
|
||||
for attr in to_copy:
|
||||
new_dict[attr] = copy.deepcopy(self.__dict__[attr])
|
||||
|
@ -196,7 +293,55 @@ class Message(UserString.UserString, object):
|
|||
if name in ops:
|
||||
return getattr(self.data, name)
|
||||
else:
|
||||
return UserString.UserString.__getattribute__(self, name)
|
||||
return _userString.UserString.__getattribute__(self, name)
|
||||
|
||||
|
||||
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)
|
||||
_AVAILABLE_LANGUAGES[domain] = language_list
|
||||
return copy.copy(language_list)
|
||||
|
||||
|
||||
def get_localized_message(message, user_locale):
|
||||
"""Gets a localized version of the given message in the given locale.
|
||||
|
||||
If the message is not a Message object the message is returned as-is.
|
||||
If the locale is None the message is translated to the default locale.
|
||||
|
||||
:returns: the translated message in unicode, or the original message if
|
||||
it could not be translated
|
||||
"""
|
||||
translated = message
|
||||
if isinstance(message, Message):
|
||||
original_locale = message.locale
|
||||
message.locale = user_locale
|
||||
translated = six.text_type(message)
|
||||
message.locale = original_locale
|
||||
return translated
|
||||
|
||||
|
||||
class LocaleHandler(logging.Handler):
|
||||
|
|
|
@ -1,5 +1,3 @@
|
|||
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
||||
|
||||
# Copyright 2011 OpenStack Foundation.
|
||||
# All Rights Reserved.
|
||||
#
|
||||
|
@ -24,7 +22,7 @@ import traceback
|
|||
|
||||
|
||||
def import_class(import_str):
|
||||
"""Returns a class from a string including module and class"""
|
||||
"""Returns a class from a string including module and class."""
|
||||
mod_str, _sep, class_str = import_str.rpartition('.')
|
||||
try:
|
||||
__import__(mod_str)
|
||||
|
@ -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.
|
||||
"""
|
||||
|
|
|
@ -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 +36,23 @@ import functools
|
|||
import inspect
|
||||
import itertools
|
||||
import json
|
||||
import types
|
||||
import xmlrpclib
|
||||
try:
|
||||
import xmlrpclib
|
||||
except ImportError:
|
||||
# NOTE(jaypipes): xmlrpclib was renamed to xmlrpc.client in Python3
|
||||
# however the function and object call signatures
|
||||
# remained the same. This whole try/except block should
|
||||
# be removed and replaced with a call to six.moves once
|
||||
# six 1.4.2 is released. See http://bit.ly/1bqrVzu
|
||||
import xmlrpc.client as xmlrpclib
|
||||
|
||||
import six
|
||||
|
||||
from glance.openstack.common import gettextutils
|
||||
from glance.openstack.common import importutils
|
||||
from glance.openstack.common import timeutils
|
||||
|
||||
netaddr = importutils.try_import("netaddr")
|
||||
|
||||
_nasty_type_tests = [inspect.ismodule, inspect.isclass, inspect.ismethod,
|
||||
inspect.isfunction, inspect.isgeneratorfunction,
|
||||
|
@ -52,7 +60,8 @@ _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 +126,7 @@ 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 +138,8 @@ 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 +148,8 @@ 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)
|
||||
|
|
|
@ -1,5 +1,3 @@
|
|||
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
||||
|
||||
# Copyright 2011 OpenStack Foundation.
|
||||
# All Rights Reserved.
|
||||
#
|
||||
|
|
|
@ -1,5 +1,3 @@
|
|||
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
||||
|
||||
# Copyright 2011 OpenStack Foundation.
|
||||
# All Rights Reserved.
|
||||
#
|
||||
|
@ -31,7 +29,7 @@ import weakref
|
|||
from oslo.config import cfg
|
||||
|
||||
from glance.openstack.common import fileutils
|
||||
from glance.openstack.common.gettextutils import _ # noqa
|
||||
from glance.openstack.common.gettextutils import _
|
||||
from glance.openstack.common import local
|
||||
from glance.openstack.common import log as logging
|
||||
|
||||
|
@ -148,16 +146,16 @@ def lock(name, lock_file_prefix=None, external=False, lock_path=None):
|
|||
True, in which case, it'll yield an InterProcessLock instance.
|
||||
|
||||
:param lock_file_prefix: The lock_file_prefix argument is used to provide
|
||||
lock files on disk with a meaningful prefix.
|
||||
lock files on disk with a meaningful prefix.
|
||||
|
||||
:param external: The external keyword argument denotes whether this lock
|
||||
should work across multiple processes. This means that if two different
|
||||
workers both run a a method decorated with @synchronized('mylock',
|
||||
external=True), only one of them will execute at a time.
|
||||
should work across multiple processes. This means that if two different
|
||||
workers both run a a method decorated with @synchronized('mylock',
|
||||
external=True), only one of them will execute at a time.
|
||||
|
||||
:param lock_path: The lock_path keyword argument is used to specify a
|
||||
special location for external lock files to live. If nothing is set, then
|
||||
CONF.lock_path is used as a default.
|
||||
special location for external lock files to live. If nothing is set, then
|
||||
CONF.lock_path is used as a default.
|
||||
"""
|
||||
with _semaphores_lock:
|
||||
try:
|
||||
|
|
|
@ -1,5 +1,3 @@
|
|||
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
||||
|
||||
# Copyright 2011 OpenStack Foundation.
|
||||
# All Rights Reserved.
|
||||
#
|
||||
|
@ -19,18 +17,35 @@
|
|||
System-level utilities and helper functions.
|
||||
"""
|
||||
|
||||
import re
|
||||
import sys
|
||||
import unicodedata
|
||||
|
||||
import six
|
||||
|
||||
from glance.openstack.common.gettextutils import _
|
||||
|
||||
|
||||
# Used for looking up extensions of text
|
||||
# to their 'multiplied' byte amount
|
||||
BYTE_MULTIPLIERS = {
|
||||
'': 1,
|
||||
't': 1024 ** 4,
|
||||
'g': 1024 ** 3,
|
||||
'm': 1024 ** 2,
|
||||
'k': 1024,
|
||||
}
|
||||
BYTE_REGEX = re.compile(r'(^-?\d+)(\D*)')
|
||||
|
||||
TRUE_STRINGS = ('1', 't', 'true', 'on', 'y', 'yes')
|
||||
FALSE_STRINGS = ('0', 'f', 'false', 'off', 'n', 'no')
|
||||
|
||||
SLUGIFY_STRIP_RE = re.compile(r"[^\w\s-]")
|
||||
SLUGIFY_HYPHENATE_RE = re.compile(r"[-\s]+")
|
||||
|
||||
|
||||
def int_from_bool_as_string(subject):
|
||||
"""
|
||||
Interpret a string as a boolean and return either 1 or 0.
|
||||
"""Interpret a string as a boolean and return either 1 or 0.
|
||||
|
||||
Any string value in:
|
||||
|
||||
|
@ -44,8 +59,7 @@ def int_from_bool_as_string(subject):
|
|||
|
||||
|
||||
def bool_from_string(subject, strict=False):
|
||||
"""
|
||||
Interpret a string as a boolean.
|
||||
"""Interpret a string as a boolean.
|
||||
|
||||
A case-insensitive match is performed such that strings matching 't',
|
||||
'true', 'on', 'y', 'yes', or '1' are considered True and, when
|
||||
|
@ -57,7 +71,7 @@ def bool_from_string(subject, strict=False):
|
|||
ValueError which is useful when parsing values passed in from an API call.
|
||||
Strings yielding False are 'f', 'false', 'off', 'n', 'no', or '0'.
|
||||
"""
|
||||
if not isinstance(subject, basestring):
|
||||
if not isinstance(subject, six.string_types):
|
||||
subject = str(subject)
|
||||
|
||||
lowered = subject.strip().lower()
|
||||
|
@ -78,21 +92,19 @@ def bool_from_string(subject, strict=False):
|
|||
|
||||
|
||||
def safe_decode(text, incoming=None, errors='strict'):
|
||||
"""
|
||||
Decodes incoming str using `incoming` if they're
|
||||
not already unicode.
|
||||
"""Decodes incoming str using `incoming` if they're not already unicode.
|
||||
|
||||
:param incoming: Text's current encoding
|
||||
:param errors: Errors handling policy. See here for valid
|
||||
values http://docs.python.org/2/library/codecs.html
|
||||
:returns: text or a unicode `incoming` encoded
|
||||
representation of it.
|
||||
:raises TypeError: If text is not an isntance of basestring
|
||||
:raises TypeError: If text is not an instance of str
|
||||
"""
|
||||
if not isinstance(text, basestring):
|
||||
if not isinstance(text, six.string_types):
|
||||
raise TypeError("%s can't be decoded" % type(text))
|
||||
|
||||
if isinstance(text, unicode):
|
||||
if isinstance(text, six.text_type):
|
||||
return text
|
||||
|
||||
if not incoming:
|
||||
|
@ -119,11 +131,10 @@ def safe_decode(text, incoming=None, errors='strict'):
|
|||
|
||||
def safe_encode(text, incoming=None,
|
||||
encoding='utf-8', errors='strict'):
|
||||
"""
|
||||
Encodes incoming str/unicode using `encoding`. If
|
||||
incoming is not specified, text is expected to
|
||||
be encoded with current python's default encoding.
|
||||
(`sys.getdefaultencoding`)
|
||||
"""Encodes incoming str/unicode using `encoding`.
|
||||
|
||||
If incoming is not specified, text is expected to be encoded with
|
||||
current python's default encoding. (`sys.getdefaultencoding`)
|
||||
|
||||
:param incoming: Text's current encoding
|
||||
:param encoding: Expected encoding for text (Default UTF-8)
|
||||
|
@ -131,20 +142,81 @@ def safe_encode(text, incoming=None,
|
|||
values http://docs.python.org/2/library/codecs.html
|
||||
:returns: text or a bytestring `encoding` encoded
|
||||
representation of it.
|
||||
:raises TypeError: If text is not an isntance of basestring
|
||||
:raises TypeError: If text is not an instance of str
|
||||
"""
|
||||
if not isinstance(text, basestring):
|
||||
if not isinstance(text, six.string_types):
|
||||
raise TypeError("%s can't be encoded" % type(text))
|
||||
|
||||
if not incoming:
|
||||
incoming = (sys.stdin.encoding or
|
||||
sys.getdefaultencoding())
|
||||
|
||||
if isinstance(text, unicode):
|
||||
return text.encode(encoding, errors)
|
||||
if isinstance(text, six.text_type):
|
||||
if six.PY3:
|
||||
return text.encode(encoding, errors).decode(incoming)
|
||||
else:
|
||||
return text.encode(encoding, errors)
|
||||
elif text and encoding != incoming:
|
||||
# Decode text before encoding it with `encoding`
|
||||
text = safe_decode(text, incoming, errors)
|
||||
return text.encode(encoding, errors)
|
||||
if six.PY3:
|
||||
return text.encode(encoding, errors).decode(incoming)
|
||||
else:
|
||||
return text.encode(encoding, errors)
|
||||
|
||||
return text
|
||||
|
||||
|
||||
def to_bytes(text, default=0):
|
||||
"""Converts a string into an integer of bytes.
|
||||
|
||||
Looks at the last characters of the text to determine
|
||||
what conversion is needed to turn the input text into a byte number.
|
||||
Supports "B, K(B), M(B), G(B), and T(B)". (case insensitive)
|
||||
|
||||
:param text: String input for bytes size conversion.
|
||||
:param default: Default return value when text is blank.
|
||||
|
||||
"""
|
||||
match = BYTE_REGEX.search(text)
|
||||
if match:
|
||||
magnitude = int(match.group(1))
|
||||
mult_key_org = match.group(2)
|
||||
if not mult_key_org:
|
||||
return magnitude
|
||||
elif text:
|
||||
msg = _('Invalid string format: %s') % text
|
||||
raise TypeError(msg)
|
||||
else:
|
||||
return default
|
||||
mult_key = mult_key_org.lower().replace('b', '', 1)
|
||||
multiplier = BYTE_MULTIPLIERS.get(mult_key)
|
||||
if multiplier is None:
|
||||
msg = _('Unknown byte multiplier: %s') % mult_key_org
|
||||
raise TypeError(msg)
|
||||
return magnitude * multiplier
|
||||
|
||||
|
||||
def to_slug(value, incoming=None, errors="strict"):
|
||||
"""Normalize string.
|
||||
|
||||
Convert to lowercase, remove non-word characters, and convert spaces
|
||||
to hyphens.
|
||||
|
||||
Inspired by Django's `slugify` filter.
|
||||
|
||||
:param value: Text to slugify
|
||||
:param incoming: Text's current encoding
|
||||
:param errors: Errors handling policy. See here for valid
|
||||
values http://docs.python.org/2/library/codecs.html
|
||||
:returns: slugified unicode representation of `value`
|
||||
:raises TypeError: If text is not an instance of str
|
||||
"""
|
||||
value = safe_decode(value, incoming, errors)
|
||||
# NOTE(aababilov): no need to use safe_(encode|decode) here:
|
||||
# encodings are always "ascii", error handling is always "ignore"
|
||||
# and types are always known (first: unicode; second: str)
|
||||
value = unicodedata.normalize("NFKD", value).encode(
|
||||
"ascii", "ignore").decode("ascii")
|
||||
value = SLUGIFY_STRIP_RE.sub("", value).strip().lower()
|
||||
return SLUGIFY_HYPHENATE_RE.sub("-", value)
|
||||
|
|
|
@ -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 formated date from timestamp."""
|
||||
return isotime(datetime.datetime.utcfromtimestamp(timestamp))
|
||||
|
||||
|
||||
utcnow.override_time = None
|
||||
|
||||
|
||||
def set_time_override(override_time=datetime.datetime.utcnow()):
|
||||
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.
|
||||
"""
|
||||
Override utils.utcnow to return a constant time or a list thereof,
|
||||
one at a 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
|
||||
"""
|
||||
|
|
|
@ -1,5 +1,3 @@
|
|||
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
||||
|
||||
# Copyright 2013 IBM Corp
|
||||
# All Rights Reserved.
|
||||
#
|
||||
|
|
|
@ -1,5 +1,3 @@
|
|||
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
||||
|
||||
# Copyright 2013 OpenStack Foundation
|
||||
# Copyright 2013 IBM Corp.
|
||||
#
|
||||
|
@ -114,15 +112,12 @@ class InstallVenv(object):
|
|||
print('Installing dependencies with pip (this can take a while)...')
|
||||
|
||||
# First things first, make sure our venv has the latest pip and
|
||||
# setuptools.
|
||||
self.pip_install('pip>=1.3')
|
||||
# setuptools and pbr
|
||||
self.pip_install('pip>=1.4')
|
||||
self.pip_install('setuptools')
|
||||
self.pip_install('pbr')
|
||||
|
||||
self.pip_install('-r', self.requirements)
|
||||
self.pip_install('-r', self.test_requirements)
|
||||
|
||||
def post_process(self):
|
||||
self.get_distro().post_process()
|
||||
self.pip_install('-r', self.requirements, '-r', self.test_requirements)
|
||||
|
||||
def parse_args(self, argv):
|
||||
"""Parses command-line arguments."""
|
||||
|
@ -156,14 +151,6 @@ class Distro(InstallVenv):
|
|||
' requires virtualenv, please install it using your'
|
||||
' favorite package management tool' % self.project)
|
||||
|
||||
def post_process(self):
|
||||
"""Any distribution-specific post-processing gets done here.
|
||||
|
||||
In particular, this is useful for applying patches to code inside
|
||||
the venv.
|
||||
"""
|
||||
pass
|
||||
|
||||
|
||||
class Fedora(Distro):
|
||||
"""This covers all Fedora-based distributions.
|
||||
|
@ -175,10 +162,6 @@ class Fedora(Distro):
|
|||
return self.run_command_with_code(['rpm', '-q', pkg],
|
||||
check_exit_code=False)[1] == 0
|
||||
|
||||
def apply_patch(self, originalfile, patchfile):
|
||||
self.run_command(['patch', '-N', originalfile, patchfile],
|
||||
check_exit_code=False)
|
||||
|
||||
def install_virtualenv(self):
|
||||
if self.check_cmd('virtualenv'):
|
||||
return
|
||||
|
@ -187,26 +170,3 @@ class Fedora(Distro):
|
|||
self.die("Please install 'python-virtualenv'.")
|
||||
|
||||
super(Fedora, self).install_virtualenv()
|
||||
|
||||
def post_process(self):
|
||||
"""Workaround for a bug in eventlet.
|
||||
|
||||
This currently affects RHEL6.1, but the fix can safely be
|
||||
applied to all RHEL and Fedora distributions.
|
||||
|
||||
This can be removed when the fix is applied upstream.
|
||||
|
||||
Nova: https://bugs.launchpad.net/nova/+bug/884915
|
||||
Upstream: https://bitbucket.org/eventlet/eventlet/issue/89
|
||||
RHEL: https://bugzilla.redhat.com/958868
|
||||
"""
|
||||
|
||||
# Install "patch" program if it's not there
|
||||
if not self.check_pkg('patch'):
|
||||
self.die("Please install 'patch'.")
|
||||
|
||||
# Apply the eventlet patch
|
||||
self.apply_patch(os.path.join(self.venv, 'lib', self.py_version,
|
||||
'site-packages',
|
||||
'eventlet/green/subprocess.py'),
|
||||
'contrib/redhat-eventlet.patch')
|
||||
|
|
Loading…
Reference in New Issue