import os
from ctypes import c_int, c_char_p, c_void_p, c_uint, c_long, byref
-from notmuch.globals import nmlib, STATUS, NotmuchError, Enum
+from notmuch.globals import nmlib, STATUS, NotmuchError, Enum, _str
from notmuch.thread import Threads
from notmuch.message import Messages, Message
from notmuch.tag import Tags
-
class Database(object):
"""Represents a notmuch database (wraps notmuch_database_t)
_find_message = nmlib.notmuch_database_find_message
_find_message.restype = c_void_p
+ """notmuch_database_find_message_by_filename"""
+ _find_message_by_filename = nmlib.notmuch_database_find_message_by_filename
+ _find_message_by_filename.restype = c_void_p
+
"""notmuch_database_get_all_tags"""
_get_all_tags = nmlib.notmuch_database_get_all_tags
_get_all_tags.restype = c_void_p
Database._std_db_path = self._get_user_default_db()
path = Database._std_db_path
- assert isinstance(path, basestring), 'Path must be a string or None.'
if create == False:
self.open(path, mode)
else:
self.create(path)
- def _verify_initialized_db(self):
+ def _assert_db_is_initialized(self):
"""Raises a NotmuchError in case self._db is still None"""
if self._db is None:
raise NotmuchError(STATUS.NOT_INITIALIZED)
raise NotmuchError(message="Cannot create db, this Database() "
"already has an open one.")
- res = Database._create(path, Database.MODE.READ_WRITE)
+ res = Database._create(_str(path), Database.MODE.READ_WRITE)
if res is None:
raise NotmuchError(
:exception: Raises :exc:`NotmuchError` in case
of any failure (after printing an error message on stderr).
"""
- if isinstance(path, unicode):
- path = path.encode('utf-8')
- res = Database._open(path, mode)
+ res = Database._open(_str(path), mode)
if res is None:
raise NotmuchError(
"""Returns the file path of an open database
Wraps *notmuch_database_get_path*."""
- # Raise a NotmuchError if not initialized
- self._verify_initialized_db()
-
+ self._assert_db_is_initialized()
return Database._get_path(self._db).decode('utf-8')
def get_version(self):
:exception: :exc:`NotmuchError` with STATUS.NOT_INITIALIZED if
the database was not intitialized.
"""
- # Raise a NotmuchError if not initialized
- self._verify_initialized_db()
-
+ self._assert_db_is_initialized()
return Database._get_version(self._db)
def needs_upgrade(self):
:exception: :exc:`NotmuchError` with STATUS.NOT_INITIALIZED if
the database was not intitialized.
"""
- # Raise a NotmuchError if not initialized
- self._verify_initialized_db()
-
+ self._assert_db_is_initialized()
return nmlib.notmuch_database_needs_upgrade(self._db)
def upgrade(self):
:TODO: catch exceptions, document return values and etc...
"""
- # Raise a NotmuchError if not initialized
- self._verify_initialized_db()
-
+ self._assert_db_is_initialized()
status = Database._upgrade(self._db, None, None)
#TODO: catch exceptions, document return values and etc
return status
+ def begin_atomic(self):
+ """Begin an atomic database operation
+
+ Any modifications performed between a successful
+ :meth:`begin_atomic` and a :meth:`end_atomic` will be applied to
+ the database atomically. Note that, unlike a typical database
+ transaction, this only ensures atomicity, not durability;
+ neither begin nor end necessarily flush modifications to disk.
+
+ :returns: STATUS.SUCCESS or raises
+
+ :exception: :exc:`NotmuchError` STATUS.XAPIAN_EXCEPTION::
+
+ A Xapian exception occurred; atomic section not
+ entered."""
+ self._assert_db_is_initialized()
+ status = nmlib.notmuch_database_begin_atomic(self._db)
+ if status != STATUS.SUCCESS:
+ raise NotmuchError(status)
+ return status
+
+ def end_atomic(self):
+ """Indicate the end of an atomic database operation
+
+ See :meth:`begin_atomic` for details.
+
+ :returns: STATUS.SUCCESS or raises
+
+ :exception:
+ :exc:`NotmuchError`:
+ STATUS.XAPIAN_EXCEPTION
+ A Xapian exception occurred; atomic section not
+ ended.
+ STATUS.UNBALANCED_ATOMIC:
+ end_atomic has been called more times than begin_atomic."""
+ self._assert_db_is_initialized()
+ status = nmlib.notmuch_database_end_atomic(self._db)
+ if status != STATUS.SUCCESS:
+ raise NotmuchError(status)
+ return status
+
def get_directory(self, path):
"""Returns a :class:`Directory` of path,
(creating it if it does not exist(?))
components same as database.
"""
- # Raise a NotmuchError if not initialized
- self._verify_initialized_db()
-
+ self._assert_db_is_initialized()
# sanity checking if path is valid, and make path absolute
if path[0] == os.sep:
# we got an absolute path
#we got a relative path, make it absolute
abs_dirpath = os.path.abspath(os.path.join(self.get_path(), path))
- if isinstance(path, unicode):
- path = path.encode('UTF-8')
- dir_p = Database._get_directory(self._db, path)
+ dir_p = Database._get_directory(self._db, _str(path))
# return the Directory, init it with the absolute path
- return Directory(abs_dirpath, dir_p, self)
+ return Directory(_str(abs_dirpath), dir_p, self)
def add_message(self, filename, sync_maildir_flags=False):
"""Adds a new message to the database
STATUS.DUPLICATE_MESSAGE_ID
Message has the same message ID as another message already
in the database. The new filename was successfully added
- to the message in the database.
+ to the list of the filenames for the existing message.
:rtype: 2-tuple(:class:`Message`, STATUS)
STATUS.NOT_INITIALIZED
The database has not been initialized.
"""
- # Raise a NotmuchError if not initialized
- self._verify_initialized_db()
-
+ self._assert_db_is_initialized()
msg_p = c_void_p()
status = nmlib.notmuch_database_add_message(self._db,
- filename,
+ _str(filename),
byref(msg_p))
if not status in [STATUS.SUCCESS, STATUS.DUPLICATE_MESSAGE_ID]:
return (msg, status)
def remove_message(self, filename):
- """Removes a message from the given notmuch database
+ """Removes a message (filename) from the given notmuch database
Note that only this particular filename association is removed from
the database. If the same message (as determined by the message ID)
STATUS.NOT_INITIALIZED
The database has not been initialized.
"""
- # Raise a NotmuchError if not initialized
- self._verify_initialized_db()
-
+ self._assert_db_is_initialized()
return nmlib.notmuch_database_remove_message(self._db,
filename)
:exception: :exc:`NotmuchError` with STATUS.NOT_INITIALIZED if
the database was not intitialized.
"""
- # Raise a NotmuchError if not initialized
- self._verify_initialized_db()
+ self._assert_db_is_initialized()
+ msg_p = Database._find_message(self._db, _str(msgid))
+ return msg_p and Message(msg_p, self) or None
+
+ def find_message_by_filename(self, filename):
+ """Find a message with the given filename
- msg_p = Database._find_message(self._db, msgid)
- if msg_p is None:
- return None
- return Message(msg_p, self)
+ :returns: If the database contains a message with the given
+ filename, then a class:`Message:` is returned. This
+ function returns None in the following situations:
+
+ * No message is found with the given filename
+ * An out-of-memory situation occurs
+ * A Xapian exception occurs"""
+ self._assert_db_is_initialized()
+ msg_p = Database._find_message_by_filename(self._db, _str(filename))
+ return msg_p and Message(msg_p, self) or None
def get_all_tags(self):
"""Returns :class:`Tags` with a list of all tags found in the database
:returns: :class:`Tags`
:execption: :exc:`NotmuchError` with STATUS.NULL_POINTER on error
"""
- # Raise a NotmuchError if not initialized
- self._verify_initialized_db()
-
+ self._assert_db_is_initialized()
tags_p = Database._get_all_tags(self._db)
if tags_p == None:
raise NotmuchError(STATUS.NULL_POINTER)
This function is a python extension and not in the underlying C API.
"""
- # Raise a NotmuchError if not initialized
- self._verify_initialized_db()
-
+ self._assert_db_is_initialized()
return Query(self, querystring)
def __repr__(self):
raise NotmuchError(STATUS.NOT_INITIALIZED)
# create reference to parent db to keep it alive
self._db = db
- if isinstance(querystr, unicode):
- # xapian takes utf-8 encoded byte arrays
- querystr = querystr.encode('utf-8')
# create query, return None if too little mem available
- query_p = Query._create(db.db_p, querystr)
+ query_p = Query._create(db.db_p, _str(querystr))
if query_p is None:
NotmuchError(STATUS.NULL_POINTER)
self._query = query_p
_get_child_directories = nmlib.notmuch_directory_get_child_directories
_get_child_directories.restype = c_void_p
- def _verify_dir_initialized(self):
+ def _assert_dir_is_initialized(self):
"""Raises a NotmuchError(STATUS.NOT_INITIALIZED) if dir_p is None"""
if self._dir_p is None:
raise NotmuchError(STATUS.NOT_INITIALIZED)
STATUS.NOT_INITIALIZED
The directory has not been initialized
"""
- #Raise a NotmuchError(STATUS.NOT_INITIALIZED) if the dir_p is None
- self._verify_dir_initialized()
-
+ self._assert_dir_is_initialized()
#TODO: make sure, we convert the mtime parameter to a 'c_long'
status = Directory._set_mtime(self._dir_p, mtime)
STATUS.NOT_INITIALIZED
The directory has not been initialized
"""
- #Raise a NotmuchError(STATUS.NOT_INITIALIZED) if self.dir_p is None
- self._verify_dir_initialized()
-
+ self._assert_dir_is_initialized()
return Directory._get_mtime(self._dir_p)
# Make mtime attribute a property of Directory()
The returned filenames will be the basename-entries only (not
complete paths.
"""
- #Raise a NotmuchError(STATUS.NOT_INITIALIZED) if self._dir_p is None
- self._verify_dir_initialized()
-
+ self._assert_dir_is_initialized()
files_p = Directory._get_child_files(self._dir_p)
return Filenames(files_p, self)
The returned filenames will be the basename-entries only (not
complete paths.
"""
- #Raise a NotmuchError(STATUS.NOT_INITIALIZED) if self._dir_p is None
- self._verify_dir_initialized()
-
+ self._assert_dir_is_initialized()
files_p = Directory._get_child_directories(self._dir_p)
return Filenames(files_p, self)
projects / notmuch / blobdiff