8e66eefe7c
The setting COMMON_TEMPORARY_DIRECTORY is now STORAGE_TEMPORARY_DIRECTORY. Signed-off-by: Roberto Rosario <Roberto.Rosario@mayan-edms.com>
124 lines
3.3 KiB
Python
124 lines
3.3 KiB
Python
from __future__ import unicode_literals
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import logging
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import os
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import shutil
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import tempfile
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from django.utils.module_loading import import_string
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from .settings import setting_temporary_directory
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logger = logging.getLogger(__name__)
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def TemporaryFile(*args, **kwargs):
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kwargs.update({'dir': setting_temporary_directory.value})
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return tempfile.TemporaryFile(*args, **kwargs)
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# http://stackoverflow.com/questions/123198/how-do-i-copy-a-file-in-python
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def copyfile(source, destination, buffer_size=1024 * 1024):
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"""
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Copy a file from source to dest. source and dest
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can either be strings or any object with a read or
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write method, like StringIO for example.
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"""
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source_descriptor = get_descriptor(source)
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destination_descriptor = get_descriptor(destination, read=False)
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while True:
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copy_buffer = source_descriptor.read(buffer_size)
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if copy_buffer:
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destination_descriptor.write(copy_buffer)
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else:
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break
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source_descriptor.close()
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destination_descriptor.close()
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def fs_cleanup(filename, file_descriptor=None, suppress_exceptions=True):
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"""
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Tries to remove the given filename. Ignores non-existent files
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"""
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if file_descriptor:
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os.close(file_descriptor)
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try:
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os.remove(filename)
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except OSError:
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try:
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shutil.rmtree(filename)
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except OSError:
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if suppress_exceptions:
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pass
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else:
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raise
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def get_descriptor(file_input, read=True):
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try:
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# Is it a file like object?
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file_input.seek(0)
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except AttributeError:
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# If not, try open it.
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if read:
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return open(file_input, mode='rb')
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else:
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return open(file_input, mode='wb')
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else:
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return file_input
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def get_storage_subclass(dotted_path):
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"""
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Import a storage class and return a subclass that will always return eq
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True to avoid creating a new migration when for runtime storage class
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changes.
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"""
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imported_storage_class = import_string(dotted_path=dotted_path)
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class StorageSubclass(imported_storage_class):
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def __init__(self, *args, **kwargs):
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return super(StorageSubclass, self).__init__(*args, **kwargs)
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def __eq__(self, other):
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return True
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def deconstruct(self):
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return ('mayan.apps.storage.classes.FakeStorageSubclass', (), {})
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return StorageSubclass
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def mkdtemp(*args, **kwargs):
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kwargs.update({'dir': setting_temporary_directory.value})
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return tempfile.mkdtemp(*args, **kwargs)
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def mkstemp(*args, **kwargs):
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kwargs.update({'dir': setting_temporary_directory.value})
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return tempfile.mkstemp(*args, **kwargs)
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def validate_path(path):
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if not os.path.exists(path):
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# If doesn't exist try to create it
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try:
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os.mkdir(path)
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except Exception as exception:
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logger.debug('unhandled exception: %s', exception)
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return False
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# Check if it is writable
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try:
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fd, test_filepath = tempfile.mkstemp(dir=path)
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os.close(fd)
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os.unlink(test_filepath)
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except Exception as exception:
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logger.debug('unhandled exception: %s', exception)
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return False
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return True
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