mirror of
https://github.com/kovidgoyal/calibre.git
synced 2025-11-29 17:55:01 -05:00
673 lines
24 KiB
Python
673 lines
24 KiB
Python
#!/usr/bin/env python
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# vim:fileencoding=UTF-8:ts=4:sw=4:sta:et:sts=4:ai
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__license__ = 'GPL v3'
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__copyright__ = '2011, Kovid Goyal <kovid@kovidgoyal.net>'
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__docformat__ = 'restructuredtext en'
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import os, re, traceback, numbers
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from functools import partial
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from collections import defaultdict
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from copy import deepcopy
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from calibre.utils.lock import ExclusiveFile
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from calibre.constants import config_dir, CONFIG_DIR_MODE, ispy3, preferred_encoding, filesystem_encoding, iswindows
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from polyglot.builtins import unicode_type, iteritems, map
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plugin_dir = os.path.join(config_dir, 'plugins')
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def parse_old_style(src):
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if ispy3:
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import pickle as cPickle
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else:
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import cPickle
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options = {'cPickle':cPickle}
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try:
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if not isinstance(src, unicode_type):
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src = src.decode('utf-8')
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src = src.replace('PyQt%d.QtCore' % 4, 'PyQt5.QtCore')
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src = re.sub(r'cPickle\.loads\(([\'"])', r'cPickle.loads(b\1', src)
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exec(src, options)
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except Exception as err:
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try:
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print('Failed to parse old style options string with error: {}'.format(err))
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except Exception:
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pass
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return options
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def to_json(obj):
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import datetime
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if isinstance(obj, bytearray):
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from base64 import standard_b64encode
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return {'__class__': 'bytearray',
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'__value__': standard_b64encode(bytes(obj)).decode('ascii')}
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if isinstance(obj, datetime.datetime):
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from calibre.utils.date import isoformat
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return {'__class__': 'datetime.datetime',
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'__value__': isoformat(obj, as_utc=True)}
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if isinstance(obj, (set, frozenset)):
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return {'__class__': 'set', '__value__': tuple(obj)}
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if isinstance(obj, bytes):
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return obj.decode('utf-8')
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if hasattr(obj, 'toBase64'): # QByteArray
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return {'__class__': 'bytearray',
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'__value__': bytes(obj.toBase64()).decode('ascii')}
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raise TypeError(repr(obj) + ' is not JSON serializable')
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def safe_to_json(obj):
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try:
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return to_json(obj)
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except Exception:
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pass
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def from_json(obj):
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custom = obj.get('__class__')
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if custom is not None:
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if custom == 'bytearray':
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from base64 import standard_b64decode
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return bytearray(standard_b64decode(obj['__value__'].encode('ascii')))
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if custom == 'datetime.datetime':
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from calibre.utils.iso8601 import parse_iso8601
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return parse_iso8601(obj['__value__'], assume_utc=True)
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if custom == 'set':
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return set(obj['__value__'])
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return obj
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def force_unicode(x):
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try:
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return x.decode('mbcs' if iswindows else preferred_encoding)
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except UnicodeDecodeError:
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try:
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return x.decode(filesystem_encoding)
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except UnicodeDecodeError:
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return x.decode('utf-8', 'replace')
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def force_unicode_recursive(obj):
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if isinstance(obj, bytes):
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return force_unicode(obj)
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if isinstance(obj, (list, tuple)):
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return type(obj)(map(force_unicode_recursive, obj))
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if isinstance(obj, dict):
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return {force_unicode_recursive(k): force_unicode_recursive(v) for k, v in iteritems(obj)}
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return obj
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def json_dumps(obj, ignore_unserializable=False):
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import json
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try:
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ans = json.dumps(obj, indent=2, default=safe_to_json if ignore_unserializable else to_json, sort_keys=True, ensure_ascii=False)
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except UnicodeDecodeError:
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obj = force_unicode_recursive(obj)
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ans = json.dumps(obj, indent=2, default=safe_to_json if ignore_unserializable else to_json, sort_keys=True, ensure_ascii=False)
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if not isinstance(ans, bytes):
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ans = ans.encode('utf-8')
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return ans
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def json_loads(raw):
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import json
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if isinstance(raw, bytes):
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raw = raw.decode('utf-8')
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return json.loads(raw, object_hook=from_json)
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def make_config_dir():
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if not os.path.exists(plugin_dir):
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os.makedirs(plugin_dir, mode=CONFIG_DIR_MODE)
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class Option(object):
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def __init__(self, name, switches=[], help='', type=None, choices=None,
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check=None, group=None, default=None, action=None, metavar=None):
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if choices:
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type = 'choice'
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self.name = name
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self.switches = switches
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self.help = help.replace('%default', repr(default)) if help else None
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self.type = type
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if self.type is None and action is None and choices is None:
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if isinstance(default, float):
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self.type = 'float'
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elif isinstance(default, numbers.Integral) and not isinstance(default, bool):
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self.type = 'int'
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self.choices = choices
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self.check = check
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self.group = group
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self.default = default
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self.action = action
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self.metavar = metavar
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def __eq__(self, other):
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return self.name == getattr(other, 'name', other)
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def __repr__(self):
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return 'Option: '+self.name
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def __str__(self):
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return repr(self)
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class OptionValues(object):
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def copy(self):
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return deepcopy(self)
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class OptionSet(object):
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OVERRIDE_PAT = re.compile(r'#{3,100} Override Options #{15}(.*?)#{3,100} End Override #{3,100}',
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re.DOTALL|re.IGNORECASE)
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def __init__(self, description=''):
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self.description = description
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self.defaults = {}
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self.preferences = []
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self.group_list = []
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self.groups = {}
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self.set_buffer = {}
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self.loads_pat = None
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def has_option(self, name_or_option_object):
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if name_or_option_object in self.preferences:
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return True
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for p in self.preferences:
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if p.name == name_or_option_object:
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return True
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return False
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def get_option(self, name_or_option_object):
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idx = self.preferences.index(name_or_option_object)
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if idx > -1:
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return self.preferences[idx]
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for p in self.preferences:
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if p.name == name_or_option_object:
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return p
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def add_group(self, name, description=''):
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if name in self.group_list:
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raise ValueError('A group by the name %s already exists in this set'%name)
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self.groups[name] = description
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self.group_list.append(name)
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return partial(self.add_opt, group=name)
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def update(self, other):
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for name in other.groups.keys():
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self.groups[name] = other.groups[name]
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if name not in self.group_list:
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self.group_list.append(name)
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for pref in other.preferences:
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if pref in self.preferences:
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self.preferences.remove(pref)
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self.preferences.append(pref)
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def smart_update(self, opts1, opts2):
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'''
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Updates the preference values in opts1 using only the non-default preference values in opts2.
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'''
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for pref in self.preferences:
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new = getattr(opts2, pref.name, pref.default)
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if new != pref.default:
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setattr(opts1, pref.name, new)
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def remove_opt(self, name):
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if name in self.preferences:
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self.preferences.remove(name)
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def add_opt(self, name, switches=[], help=None, type=None, choices=None,
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group=None, default=None, action=None, metavar=None):
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'''
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Add an option to this section.
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:param name: The name of this option. Must be a valid Python identifier.
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Must also be unique in this OptionSet and all its subsets.
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:param switches: List of command line switches for this option
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(as supplied to :module:`optparse`). If empty, this
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option will not be added to the command line parser.
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:param help: Help text.
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:param type: Type checking of option values. Supported types are:
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`None, 'choice', 'complex', 'float', 'int', 'string'`.
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:param choices: List of strings or `None`.
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:param group: Group this option belongs to. You must previously
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have created this group with a call to :method:`add_group`.
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:param default: The default value for this option.
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:param action: The action to pass to optparse. Supported values are:
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`None, 'count'`. For choices and boolean options,
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action is automatically set correctly.
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'''
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pref = Option(name, switches=switches, help=help, type=type, choices=choices,
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group=group, default=default, action=action, metavar=None)
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if group is not None and group not in self.groups.keys():
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raise ValueError('Group %s has not been added to this section'%group)
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if pref in self.preferences:
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raise ValueError('An option with the name %s already exists in this set.'%name)
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self.preferences.append(pref)
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self.defaults[name] = default
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def retranslate_help(self):
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t = _
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for opt in self.preferences:
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if opt.help:
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opt.help = t(opt.help)
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if opt.name == 'use_primary_find_in_search':
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opt.help = opt.help.format(u'ñ')
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def option_parser(self, user_defaults=None, usage='', gui_mode=False):
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from calibre.utils.config import OptionParser
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parser = OptionParser(usage, gui_mode=gui_mode)
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groups = defaultdict(lambda : parser)
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for group, desc in self.groups.items():
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groups[group] = parser.add_option_group(group.upper(), desc)
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for pref in self.preferences:
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if not pref.switches:
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continue
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g = groups[pref.group]
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action = pref.action
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if action is None:
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action = 'store'
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if pref.default is True or pref.default is False:
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action = 'store_' + ('false' if pref.default else 'true')
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args = dict(
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dest=pref.name,
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help=pref.help,
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metavar=pref.metavar,
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type=pref.type,
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choices=pref.choices,
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default=getattr(user_defaults, pref.name, pref.default),
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action=action,
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)
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g.add_option(*pref.switches, **args)
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return parser
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def get_override_section(self, src):
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match = self.OVERRIDE_PAT.search(src)
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if match:
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return match.group()
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return ''
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def parse_string(self, src):
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options = {}
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if src:
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is_old_style = (isinstance(src, bytes) and src.startswith(b'#')) or (isinstance(src, unicode_type) and src.startswith(u'#'))
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if is_old_style:
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options = parse_old_style(src)
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else:
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try:
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options = json_loads(src)
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if not isinstance(options, dict):
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raise Exception('options is not a dictionary')
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except Exception as err:
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try:
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print('Failed to parse options string with error: {}'.format(err))
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except Exception:
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pass
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opts = OptionValues()
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for pref in self.preferences:
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val = options.get(pref.name, pref.default)
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formatter = __builtins__.get(pref.type, None)
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if callable(formatter):
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val = formatter(val)
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setattr(opts, pref.name, val)
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return opts
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def serialize(self, opts, ignore_unserializable=False):
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data = {pref.name: getattr(opts, pref.name, pref.default) for pref in self.preferences}
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return json_dumps(data, ignore_unserializable=ignore_unserializable)
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class ConfigInterface(object):
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def __init__(self, description):
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self.option_set = OptionSet(description=description)
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self.add_opt = self.option_set.add_opt
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self.add_group = self.option_set.add_group
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self.remove_opt = self.remove = self.option_set.remove_opt
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self.parse_string = self.option_set.parse_string
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self.get_option = self.option_set.get_option
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self.preferences = self.option_set.preferences
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def update(self, other):
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self.option_set.update(other.option_set)
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def option_parser(self, usage='', gui_mode=False):
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return self.option_set.option_parser(user_defaults=self.parse(),
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usage=usage, gui_mode=gui_mode)
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def smart_update(self, opts1, opts2):
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self.option_set.smart_update(opts1, opts2)
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class Config(ConfigInterface):
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'''
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A file based configuration.
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'''
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def __init__(self, basename, description=''):
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ConfigInterface.__init__(self, description)
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self.filename_base = basename
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@property
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def config_file_path(self):
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return os.path.join(config_dir, self.filename_base + '.py.json')
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def parse(self):
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src = ''
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migrate = False
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path = self.config_file_path
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if os.path.exists(path):
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with ExclusiveFile(path) as f:
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try:
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src = f.read().decode('utf-8')
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except ValueError:
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print("Failed to parse", path)
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traceback.print_exc()
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if not src:
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path = path.rpartition('.')[0]
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from calibre.utils.shared_file import share_open
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try:
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with share_open(path, 'rb') as f:
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src = f.read().decode('utf-8')
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except Exception:
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pass
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else:
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migrate = bool(src)
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ans = self.option_set.parse_string(src)
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if migrate:
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new_src = self.option_set.serialize(ans, ignore_unserializable=True)
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with ExclusiveFile(self.config_file_path) as f:
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f.seek(0), f.truncate()
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f.write(new_src)
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return ans
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def set(self, name, val):
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if not self.option_set.has_option(name):
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raise ValueError('The option %s is not defined.'%name)
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if not os.path.exists(config_dir):
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make_config_dir()
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with ExclusiveFile(self.config_file_path) as f:
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src = f.read()
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opts = self.option_set.parse_string(src)
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setattr(opts, name, val)
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src = self.option_set.serialize(opts)
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f.seek(0)
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f.truncate()
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if isinstance(src, unicode_type):
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src = src.encode('utf-8')
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f.write(src)
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class StringConfig(ConfigInterface):
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'''
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A string based configuration
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'''
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def __init__(self, src, description=''):
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ConfigInterface.__init__(self, description)
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self.set_src(src)
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def set_src(self, src):
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self.src = src
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if isinstance(self.src, bytes):
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self.src = self.src.decode('utf-8')
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def parse(self):
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return self.option_set.parse_string(self.src)
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def set(self, name, val):
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if not self.option_set.has_option(name):
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raise ValueError('The option %s is not defined.'%name)
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opts = self.option_set.parse_string(self.src)
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setattr(opts, name, val)
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self.set_src(self.option_set.serialize(opts))
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class ConfigProxy(object):
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'''
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A Proxy to minimize file reads for widely used config settings
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'''
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def __init__(self, config):
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self.__config = config
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self.__opts = None
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@property
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def defaults(self):
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return self.__config.option_set.defaults
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def refresh(self):
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self.__opts = self.__config.parse()
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def retranslate_help(self):
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self.__config.option_set.retranslate_help()
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def __getitem__(self, key):
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return self.get(key)
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def __setitem__(self, key, val):
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return self.set(key, val)
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def __delitem__(self, key):
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self.set(key, self.defaults[key])
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def get(self, key):
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if self.__opts is None:
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self.refresh()
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return getattr(self.__opts, key)
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def set(self, key, val):
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if self.__opts is None:
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self.refresh()
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setattr(self.__opts, key, val)
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return self.__config.set(key, val)
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def help(self, key):
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return self.__config.get_option(key).help
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def create_global_prefs(conf_obj=None):
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c = Config('global', 'calibre wide preferences') if conf_obj is None else conf_obj
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c.add_opt('database_path',
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default=os.path.expanduser('~/library1.db'),
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help=_('Path to the database in which books are stored'))
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c.add_opt('filename_pattern', default=u'(?P<title>.+) - (?P<author>[^_]+)',
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help=_('Pattern to guess metadata from filenames'))
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c.add_opt('isbndb_com_key', default='',
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help=_('Access key for isbndb.com'))
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c.add_opt('network_timeout', default=5,
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help=_('Default timeout for network operations (seconds)'))
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c.add_opt('library_path', default=None,
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help=_('Path to directory in which your library of books is stored'))
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c.add_opt('language', default=None,
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help=_('The language in which to display the user interface'))
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c.add_opt('output_format', default='EPUB',
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help=_('The default output format for e-book conversions. When auto-converting'
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' to send to a device this can be overridden by individual device preferences.'
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' These can be changed by right clicking the device icon in calibre and'
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' choosing "Configure".'))
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c.add_opt('input_format_order', default=['EPUB', 'AZW3', 'MOBI', 'LIT', 'PRC',
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'FB2', 'HTML', 'HTM', 'XHTM', 'SHTML', 'XHTML', 'ZIP', 'DOCX', 'ODT', 'RTF', 'PDF',
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'TXT'],
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help=_('Ordered list of formats to prefer for input.'))
|
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c.add_opt('read_file_metadata', default=True,
|
|
help=_('Read metadata from files'))
|
|
c.add_opt('worker_process_priority', default='normal',
|
|
help=_('The priority of worker processes. A higher priority '
|
|
'means they run faster and consume more resources. '
|
|
'Most tasks like conversion/news download/adding books/etc. '
|
|
'are affected by this setting.'))
|
|
c.add_opt('swap_author_names', default=False,
|
|
help=_('Swap author first and last names when reading metadata'))
|
|
c.add_opt('add_formats_to_existing', default=False,
|
|
help=_('Add new formats to existing book records'))
|
|
c.add_opt('check_for_dupes_on_ctl', default=False,
|
|
help=_('Check for duplicates when copying to another library'))
|
|
c.add_opt('installation_uuid', default=None, help='Installation UUID')
|
|
c.add_opt('new_book_tags', default=[], help=_('Tags to apply to books added to the library'))
|
|
c.add_opt('mark_new_books', default=False, help=_(
|
|
'Mark newly added books. The mark is a temporary mark that is automatically removed when calibre is restarted.'))
|
|
|
|
# these are here instead of the gui preferences because calibredb and
|
|
# calibre server can execute searches
|
|
c.add_opt('saved_searches', default={}, help=_('List of named saved searches'))
|
|
c.add_opt('user_categories', default={}, help=_('User-created Tag browser categories'))
|
|
c.add_opt('manage_device_metadata', default='manual',
|
|
help=_('How and when calibre updates metadata on the device.'))
|
|
c.add_opt('limit_search_columns', default=False,
|
|
help=_('When searching for text without using lookup '
|
|
'prefixes, as for example, Red instead of title:Red, '
|
|
'limit the columns searched to those named below.'))
|
|
c.add_opt('limit_search_columns_to',
|
|
default=['title', 'authors', 'tags', 'series', 'publisher'],
|
|
help=_('Choose columns to be searched when not using prefixes, '
|
|
'as for example, when searching for Red instead of '
|
|
'title:Red. Enter a list of search/lookup names '
|
|
'separated by commas. Only takes effect if you set the option '
|
|
'to limit search columns above.'))
|
|
c.add_opt('use_primary_find_in_search', default=True,
|
|
help=_(u'Characters typed in the search box will match their '
|
|
'accented versions, based on the language you have chosen '
|
|
'for the calibre interface. For example, in '
|
|
u'English, searching for n will match both {} and n, but if '
|
|
'your language is Spanish it will only match n. Note that '
|
|
'this is much slower than a simple search on very large '
|
|
'libraries. Also, this option will have no effect if you turn '
|
|
'on case-sensitive searching'))
|
|
c.add_opt('case_sensitive', default=False, help=_(
|
|
'Make searches case-sensitive'))
|
|
|
|
c.add_opt('migrated', default=False, help='For Internal use. Don\'t modify.')
|
|
return c
|
|
|
|
|
|
prefs = ConfigProxy(create_global_prefs())
|
|
if prefs['installation_uuid'] is None:
|
|
import uuid
|
|
prefs['installation_uuid'] = unicode_type(uuid.uuid4())
|
|
|
|
# Read tweaks
|
|
|
|
|
|
def tweaks_file():
|
|
return os.path.join(config_dir, 'tweaks.json')
|
|
|
|
|
|
def make_unicode(obj):
|
|
if isinstance(obj, bytes):
|
|
try:
|
|
return obj.decode('utf-8')
|
|
except UnicodeDecodeError:
|
|
return obj.decode(preferred_encoding, errors='replace')
|
|
if isinstance(obj, (list, tuple)):
|
|
return list(map(make_unicode, obj))
|
|
if isinstance(obj, dict):
|
|
return {make_unicode(k): make_unicode(v) for k, v in iteritems(obj)}
|
|
return obj
|
|
|
|
|
|
def normalize_tweak(val):
|
|
if isinstance(val, (list, tuple)):
|
|
return tuple(map(normalize_tweak, val))
|
|
if isinstance(val, dict):
|
|
return {k: normalize_tweak(v) for k, v in iteritems(val)}
|
|
return val
|
|
|
|
|
|
def write_custom_tweaks(tweaks_dict):
|
|
make_config_dir()
|
|
tweaks_dict = make_unicode(tweaks_dict)
|
|
changed_tweaks = {}
|
|
default_tweaks = exec_tweaks(default_tweaks_raw())
|
|
for key, cval in iteritems(tweaks_dict):
|
|
if key in default_tweaks and normalize_tweak(cval) == normalize_tweak(default_tweaks[key]):
|
|
continue
|
|
changed_tweaks[key] = cval
|
|
raw = json_dumps(changed_tweaks)
|
|
with open(tweaks_file(), 'wb') as f:
|
|
f.write(raw)
|
|
|
|
|
|
def exec_tweaks(path):
|
|
if isinstance(path, bytes):
|
|
raw = path
|
|
fname = '<string>'
|
|
else:
|
|
with open(path, 'rb') as f:
|
|
raw = f.read()
|
|
fname = f.name
|
|
code = compile(raw, fname, 'exec')
|
|
l = {}
|
|
g = {'__file__': fname}
|
|
exec(code, g, l)
|
|
return l
|
|
|
|
|
|
def read_custom_tweaks():
|
|
make_config_dir()
|
|
tf = tweaks_file()
|
|
ans = {}
|
|
if os.path.exists(tf):
|
|
with open(tf, 'rb') as f:
|
|
raw = f.read()
|
|
raw = raw.strip()
|
|
if not raw:
|
|
return ans
|
|
try:
|
|
return json_loads(raw)
|
|
except Exception:
|
|
import traceback
|
|
traceback.print_exc()
|
|
return ans
|
|
old_tweaks_file = tf.rpartition('.')[0] + '.py'
|
|
if os.path.exists(old_tweaks_file):
|
|
ans = exec_tweaks(old_tweaks_file)
|
|
ans = make_unicode(ans)
|
|
write_custom_tweaks(ans)
|
|
return ans
|
|
|
|
|
|
def default_tweaks_raw():
|
|
return P('default_tweaks.py', data=True, allow_user_override=False)
|
|
|
|
|
|
def read_tweaks():
|
|
default_tweaks = exec_tweaks(default_tweaks_raw())
|
|
try:
|
|
custom_tweaks = read_custom_tweaks()
|
|
except Exception:
|
|
custom_tweaks = {}
|
|
default_tweaks.update(custom_tweaks)
|
|
return default_tweaks
|
|
|
|
|
|
tweaks = read_tweaks()
|
|
|
|
|
|
def reset_tweaks_to_default():
|
|
default_tweaks = exec_tweaks(default_tweaks_raw())
|
|
tweaks.clear()
|
|
tweaks.update(default_tweaks)
|
|
|
|
|
|
class Tweak(object):
|
|
|
|
def __init__(self, name, value):
|
|
self.name, self.value = name, value
|
|
|
|
def __enter__(self):
|
|
self.origval = tweaks[self.name]
|
|
tweaks[self.name] = self.value
|
|
|
|
def __exit__(self, *args):
|
|
tweaks[self.name] = self.origval
|