Files
mayan-edms/mayan/apps/storage/utils.py
2019-07-11 01:56:06 -04:00

94 lines
2.4 KiB
Python

from __future__ import unicode_literals
import logging
import os
import shutil
import tempfile
from django.utils.module_loading import import_string
from .settings import setting_temporary_directory
logger = logging.getLogger(__name__)
def TemporaryFile(*args, **kwargs):
kwargs.update({'dir': setting_temporary_directory.value})
return tempfile.TemporaryFile(*args, **kwargs)
def NamedTemporaryFile(*args, **kwargs):
kwargs.update({'dir': setting_temporary_directory.value})
return tempfile.NamedTemporaryFile(*args, **kwargs)
def fs_cleanup(filename, file_descriptor=None, suppress_exceptions=True):
"""
Tries to remove the given filename. Ignores non-existent files
"""
if file_descriptor:
os.close(file_descriptor)
try:
os.remove(filename)
except OSError:
try:
shutil.rmtree(filename)
except OSError:
if suppress_exceptions:
pass
else:
raise
def get_storage_subclass(dotted_path):
"""
Import a storage class and return a subclass that will always return eq
True to avoid creating a new migration when for runtime storage class
changes.
"""
imported_storage_class = import_string(dotted_path=dotted_path)
class StorageSubclass(imported_storage_class):
def __init__(self, *args, **kwargs):
return super(StorageSubclass, self).__init__(*args, **kwargs)
def __eq__(self, other):
return True
def deconstruct(self):
return ('mayan.apps.storage.classes.FakeStorageSubclass', (), {})
return StorageSubclass
def mkdtemp(*args, **kwargs):
kwargs.update({'dir': setting_temporary_directory.value})
return tempfile.mkdtemp(*args, **kwargs)
def mkstemp(*args, **kwargs):
kwargs.update({'dir': setting_temporary_directory.value})
return tempfile.mkstemp(*args, **kwargs)
def validate_path(path):
if not os.path.exists(path):
# If doesn't exist try to create it
try:
os.mkdir(path)
except Exception as exception:
logger.debug('unhandled exception: %s', exception)
return False
# Check if it is writable
try:
fd, test_filepath = tempfile.mkstemp(dir=path)
os.close(fd)
os.unlink(test_filepath)
except Exception as exception:
logger.debug('unhandled exception: %s', exception)
return False
return True