mirror of
https://github.com/thegeeklab/ansible-later.git
synced 2024-11-16 10:00:39 +00:00
274 lines
7.5 KiB
Python
274 lines
7.5 KiB
Python
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
from __future__ import absolute_import
|
|
from __future__ import division
|
|
from __future__ import print_function
|
|
from __future__ import unicode_literals
|
|
|
|
import abc
|
|
import os
|
|
|
|
try:
|
|
from collections.abc import MutableMapping
|
|
except ImportError:
|
|
from collections import MutableMapping
|
|
|
|
try:
|
|
from collections import UserDict
|
|
except ImportError:
|
|
from UserDict import UserDict
|
|
|
|
try:
|
|
from collections import OrderedDict
|
|
except ImportError:
|
|
from ordereddict import OrderedDict
|
|
|
|
try:
|
|
import pathlib
|
|
except ImportError:
|
|
pathlib = None
|
|
|
|
from io import open
|
|
import sys
|
|
try:
|
|
from thread import get_ident
|
|
except ImportError:
|
|
try:
|
|
from _thread import get_ident
|
|
except ImportError:
|
|
from _dummy_thread import get_ident
|
|
|
|
|
|
__all__ = ['UserDict', 'OrderedDict', 'open']
|
|
|
|
|
|
PY2 = sys.version_info[0] == 2
|
|
PY3 = sys.version_info[0] == 3
|
|
|
|
native_str = str
|
|
str = type('str')
|
|
|
|
|
|
def from_none(exc):
|
|
"""raise from_none(ValueError('a')) == raise ValueError('a') from None"""
|
|
exc.__cause__ = None
|
|
exc.__suppress_context__ = True
|
|
return exc
|
|
|
|
|
|
# from reprlib 3.2.1
|
|
def recursive_repr(fillvalue='...'):
|
|
'Decorator to make a repr function return fillvalue for a recursive call'
|
|
|
|
def decorating_function(user_function):
|
|
repr_running = set()
|
|
|
|
def wrapper(self):
|
|
key = id(self), get_ident()
|
|
if key in repr_running:
|
|
return fillvalue
|
|
repr_running.add(key)
|
|
try:
|
|
result = user_function(self)
|
|
finally:
|
|
repr_running.discard(key)
|
|
return result
|
|
|
|
# Can't use functools.wraps() here because of bootstrap issues
|
|
wrapper.__module__ = getattr(user_function, '__module__')
|
|
wrapper.__doc__ = getattr(user_function, '__doc__')
|
|
wrapper.__name__ = getattr(user_function, '__name__')
|
|
wrapper.__annotations__ = getattr(user_function, '__annotations__', {})
|
|
return wrapper
|
|
|
|
return decorating_function
|
|
|
|
|
|
# from collections 3.2.1
|
|
class _ChainMap(MutableMapping):
|
|
''' A ChainMap groups multiple dicts (or other mappings) together
|
|
to create a single, updateable view.
|
|
|
|
The underlying mappings are stored in a list. That list is public and can
|
|
accessed or updated using the *maps* attribute. There is no other state.
|
|
|
|
Lookups search the underlying mappings successively until a key is found.
|
|
In contrast, writes, updates, and deletions only operate on the first
|
|
mapping.
|
|
|
|
'''
|
|
|
|
def __init__(self, *maps):
|
|
'''Initialize a ChainMap by setting *maps* to the given mappings.
|
|
If no mappings are provided, a single empty dictionary is used.
|
|
|
|
'''
|
|
self.maps = list(maps) or [{}] # always at least one map
|
|
|
|
def __missing__(self, key):
|
|
raise KeyError(key)
|
|
|
|
def __getitem__(self, key):
|
|
for mapping in self.maps:
|
|
try:
|
|
# can't use 'key in mapping' with defaultdict
|
|
return mapping[key]
|
|
except KeyError:
|
|
pass
|
|
# support subclasses that define __missing__
|
|
return self.__missing__(key)
|
|
|
|
def get(self, key, default=None):
|
|
return self[key] if key in self else default
|
|
|
|
def __len__(self):
|
|
# reuses stored hash values if possible
|
|
return len(set().union(*self.maps))
|
|
|
|
def __iter__(self):
|
|
return iter(set().union(*self.maps))
|
|
|
|
def __contains__(self, key):
|
|
return any(key in m for m in self.maps)
|
|
|
|
@recursive_repr()
|
|
def __repr__(self):
|
|
return '{0.__class__.__name__}({1})'.format(
|
|
self, ', '.join(map(repr, self.maps)))
|
|
|
|
@classmethod
|
|
def fromkeys(cls, iterable, *args):
|
|
'Create a ChainMap with a single dict created from the iterable.'
|
|
return cls(dict.fromkeys(iterable, *args))
|
|
|
|
def copy(self):
|
|
"""
|
|
New ChainMap or subclass with a new copy of
|
|
maps[0] and refs to maps[1:]
|
|
"""
|
|
return self.__class__(self.maps[0].copy(), *self.maps[1:])
|
|
|
|
__copy__ = copy
|
|
|
|
def new_child(self): # like Django's Context.push()
|
|
'New ChainMap with a new dict followed by all previous maps.'
|
|
return self.__class__({}, *self.maps)
|
|
|
|
@property
|
|
def parents(self): # like Django's Context.pop()
|
|
'New ChainMap from maps[1:].'
|
|
return self.__class__(*self.maps[1:])
|
|
|
|
def __setitem__(self, key, value):
|
|
self.maps[0][key] = value
|
|
|
|
def __delitem__(self, key):
|
|
try:
|
|
del self.maps[0][key]
|
|
except KeyError:
|
|
raise KeyError(
|
|
'Key not found in the first mapping: {!r}'.format(key))
|
|
|
|
def popitem(self):
|
|
"""
|
|
Remove and return an item pair from maps[0].
|
|
Raise KeyError is maps[0] is empty.
|
|
"""
|
|
try:
|
|
return self.maps[0].popitem()
|
|
except KeyError:
|
|
raise KeyError('No keys found in the first mapping.')
|
|
|
|
def pop(self, key, *args):
|
|
"""
|
|
Remove *key* from maps[0] and return its value.
|
|
Raise KeyError if *key* not in maps[0].
|
|
"""
|
|
|
|
try:
|
|
return self.maps[0].pop(key, *args)
|
|
except KeyError:
|
|
raise KeyError(
|
|
'Key not found in the first mapping: {!r}'.format(key))
|
|
|
|
def clear(self):
|
|
'Clear maps[0], leaving maps[1:] intact.'
|
|
self.maps[0].clear()
|
|
|
|
|
|
try:
|
|
from collections import ChainMap
|
|
except ImportError:
|
|
ChainMap = _ChainMap
|
|
|
|
|
|
_ABC = getattr(
|
|
abc, 'ABC',
|
|
# Python 3.3 compatibility
|
|
abc.ABCMeta(
|
|
native_str('__ABC'),
|
|
(object,),
|
|
dict(__metaclass__=abc.ABCMeta),
|
|
),
|
|
)
|
|
|
|
|
|
class _PathLike(_ABC):
|
|
|
|
"""Abstract base class for implementing the file system path protocol."""
|
|
|
|
@abc.abstractmethod
|
|
def __fspath__(self):
|
|
"""Return the file system path representation of the object."""
|
|
raise NotImplementedError
|
|
|
|
@classmethod
|
|
def __subclasshook__(cls, subclass):
|
|
return bool(
|
|
hasattr(subclass, '__fspath__')
|
|
# workaround for Python 3.5
|
|
or pathlib and issubclass(subclass, pathlib.Path)
|
|
)
|
|
|
|
|
|
PathLike = getattr(os, 'PathLike', _PathLike)
|
|
|
|
|
|
def _fspath(path):
|
|
"""Return the path representation of a path-like object.
|
|
|
|
If str or bytes is passed in, it is returned unchanged. Otherwise the
|
|
os.PathLike interface is used to get the path representation. If the
|
|
path representation is not str or bytes, TypeError is raised. If the
|
|
provided path is not str, bytes, or os.PathLike, TypeError is raised.
|
|
"""
|
|
if isinstance(path, (str, bytes)):
|
|
return path
|
|
|
|
if not hasattr(path, '__fspath__') and isinstance(path, pathlib.Path):
|
|
# workaround for Python 3.5
|
|
return str(path)
|
|
|
|
# Work from the object's type to match method resolution of other magic
|
|
# methods.
|
|
path_type = type(path)
|
|
try:
|
|
path_repr = path_type.__fspath__(path)
|
|
except AttributeError:
|
|
|
|
if hasattr(path_type, '__fspath__'):
|
|
raise
|
|
else:
|
|
raise TypeError("expected str, bytes or os.PathLike object, "
|
|
"not " + path_type.__name__)
|
|
if isinstance(path_repr, (str, bytes)):
|
|
return path_repr
|
|
else:
|
|
raise TypeError("expected {}.__fspath__() to return str or bytes, "
|
|
"not {}".format(path_type.__name__,
|
|
type(path_repr).__name__))
|
|
|
|
|
|
fspath = getattr(os, 'fspath', _fspath)
|