2 This file is part of notmuch.
4 Notmuch is free software: you can redistribute it and/or modify it
5 under the terms of the GNU General Public License as published by the
6 Free Software Foundation, either version 3 of the License, or (at your
7 option) any later version.
9 Notmuch is distributed in the hope that it will be useful, but WITHOUT
10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 You should have received a copy of the GNU General Public License
15 along with notmuch. If not, see <http://www.gnu.org/licenses/>.
17 Copyright 2010 Sebastian Spaeth <Sebastian@SSpaeth.de>'
20 from ctypes import CDLL, c_char_p, c_int
21 from ctypes.util import find_library
23 #-----------------------------------------------------------------------------
24 #package-global instance of the notmuch library
26 nmlib = CDLL("libnotmuch.so.1")
28 raise ImportError("Could not find shared 'notmuch' library.")
32 """Provides ENUMS as "code=Enum(['a','b','c'])" where code.a=0 etc..."""
33 def __init__(self, names):
34 for number, name in enumerate(names):
35 setattr(self, name, number)
39 """Enum with a string representation of a notmuch_status_t value."""
40 _status2str = nmlib.notmuch_status_to_string
41 _status2str.restype = c_char_p
42 _status2str.argtypes = [c_int]
44 def __init__(self, statuslist):
45 """It is initialized with a list of strings that are available as
46 Status().string1 - Status().stringn attributes.
48 super(Status, self).__init__(statuslist)
51 def status2str(self, status):
52 """Get a string representation of a notmuch_status_t value."""
53 # define strings for custom error messages
54 if status == STATUS.NOT_INITIALIZED:
55 return "Operation on uninitialized object impossible."
56 return str(Status._status2str(status))
58 STATUS = Status(['SUCCESS',
64 'DUPLICATE_MESSAGE_ID',
67 'UNBALANCED_FREEZE_THAW',
70 """STATUS is a class, whose attributes provide constants that serve as return
71 indicators for notmuch functions. Currently the following ones are defined. For
72 possible return values and specific meaning for each method, see the method
81 * DUPLICATE_MESSAGE_ID
84 * UNBALANCED_FREEZE_THAW
88 Invoke the class method `notmuch.STATUS.status2str` with a status value as
89 argument to receive a human readable string"""
90 STATUS.__name__ = 'STATUS'
93 class NotmuchError(Exception):
94 def __init__(self, status=None, message=None):
95 """Is initiated with a (notmuch.STATUS[,message=None])"""
96 super(NotmuchError, self).__init__(message, status)
99 if self.args[0] is not None:
102 return STATUS.status2str(self.args[1])
105 """Ensure a nicely utf-8 encoded string to pass to libnotmuch
107 C++ code expects strings to be well formatted and
108 unicode strings to have no null bytes."""
109 if not isinstance(value, basestring):
110 raise TypeError("Expected str or unicode, got %s" % str(type(value)))
111 if isinstance(value, unicode):
112 return value.encode('UTF-8')