mirror of
https://github.com/clinton-hall/nzbToMedia.git
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123 lines
4 KiB
Python
123 lines
4 KiB
Python
# -*- coding: utf-8 -*-
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from __future__ import division, absolute_import, print_function
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"""Fixes file permissions after the file gets written on import. Put something
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like the following in your config.yaml to configure:
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permissions:
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file: 644
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dir: 755
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"""
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import os
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from beets import config, util
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from beets.plugins import BeetsPlugin
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from beets.util import ancestry
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import six
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def convert_perm(perm):
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"""Convert a string to an integer, interpreting the text as octal.
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Or, if `perm` is an integer, reinterpret it as an octal number that
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has been "misinterpreted" as decimal.
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"""
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if isinstance(perm, six.integer_types):
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perm = six.text_type(perm)
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return int(perm, 8)
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def check_permissions(path, permission):
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"""Check whether the file's permissions equal the given vector.
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Return a boolean.
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"""
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return oct(os.stat(path).st_mode & 0o777) == oct(permission)
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def assert_permissions(path, permission, log):
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"""Check whether the file's permissions are as expected, otherwise,
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log a warning message. Return a boolean indicating the match, like
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`check_permissions`.
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"""
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if not check_permissions(util.syspath(path), permission):
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log.warning(
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u'could not set permissions on {}',
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util.displayable_path(path),
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)
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log.debug(
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u'set permissions to {}, but permissions are now {}',
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permission,
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os.stat(util.syspath(path)).st_mode & 0o777,
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)
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def dirs_in_library(library, item):
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"""Creates a list of ancestor directories in the beets library path.
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"""
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return [ancestor
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for ancestor in ancestry(item)
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if ancestor.startswith(library)][1:]
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class Permissions(BeetsPlugin):
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def __init__(self):
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super(Permissions, self).__init__()
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# Adding defaults.
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self.config.add({
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u'file': '644',
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u'dir': '755',
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})
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self.register_listener('item_imported', self.fix)
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self.register_listener('album_imported', self.fix)
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def fix(self, lib, item=None, album=None):
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"""Fix the permissions for an imported Item or Album.
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"""
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# Get the configured permissions. The user can specify this either a
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# string (in YAML quotes) or, for convenience, as an integer so the
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# quotes can be omitted. In the latter case, we need to reinterpret the
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# integer as octal, not decimal.
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file_perm = config['permissions']['file'].get()
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dir_perm = config['permissions']['dir'].get()
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file_perm = convert_perm(file_perm)
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dir_perm = convert_perm(dir_perm)
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# Create chmod_queue.
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file_chmod_queue = []
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if item:
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file_chmod_queue.append(item.path)
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elif album:
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for album_item in album.items():
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file_chmod_queue.append(album_item.path)
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# A set of directories to change permissions for.
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dir_chmod_queue = set()
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for path in file_chmod_queue:
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# Changing permissions on the destination file.
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self._log.debug(
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u'setting file permissions on {}',
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util.displayable_path(path),
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)
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os.chmod(util.syspath(path), file_perm)
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# Checks if the destination path has the permissions configured.
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assert_permissions(path, file_perm, self._log)
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# Adding directories to the directory chmod queue.
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dir_chmod_queue.update(
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dirs_in_library(lib.directory,
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path))
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# Change permissions for the directories.
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for path in dir_chmod_queue:
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# Chaning permissions on the destination directory.
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self._log.debug(
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u'setting directory permissions on {}',
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util.displayable_path(path),
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)
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os.chmod(util.syspath(path), dir_perm)
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# Checks if the destination path has the permissions configured.
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assert_permissions(path, dir_perm, self._log)
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