1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
"""
Application data stored by virtualenv.
"""
from __future__ import absolute_import, unicode_literals
import logging
import os
from argparse import Action, ArgumentError
from appdirs import user_data_dir
from .na import AppDataDisabled
from .via_disk_folder import AppDataDiskFolder
from .via_tempdir import TempAppData
class AppDataAction(Action):
def __call__(self, parser, namespace, values, option_string=None):
folder = self._check_folder(values)
if folder is None:
raise ArgumentError("app data path {} is not valid".format(values))
setattr(namespace, self.dest, AppDataDiskFolder(folder))
@staticmethod
def _check_folder(folder):
folder = os.path.abspath(folder)
if not os.path.exists(folder):
try:
os.makedirs(folder)
logging.debug("created app data folder %s", folder)
except OSError as exception:
logging.info("could not create app data folder %s due to %r", folder, exception)
return None
write_enabled = os.access(folder, os.W_OK)
if write_enabled:
return folder
logging.debug("app data folder %s has no write access", folder)
return None
@staticmethod
def default():
for folder in AppDataAction._app_data_candidates():
folder = AppDataAction._check_folder(folder)
if folder is not None:
return AppDataDiskFolder(folder)
return AppDataDisabled()
@staticmethod
def _app_data_candidates():
key = str("VIRTUALENV_OVERRIDE_APP_DATA")
if key in os.environ:
yield os.environ[key]
else:
yield user_data_dir(appname="virtualenv", appauthor="pypa")
__all__ = (
"AppDataDiskFolder",
"TempAppData",
"AppDataAction",
"AppDataDisabled",
)
|
