--- /dev/null
+"""
+This file is part of notmuch.
+
+Notmuch is free software: you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation, either version 3 of the License, or (at your
+option) any later version.
+
+Notmuch is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with notmuch. If not, see <http://www.gnu.org/licenses/>.
+
+Copyright 2010 Sebastian Spaeth <Sebastian@SSpaeth.de>'
+"""
+
+from ctypes import c_uint, c_long
+from notmuch.globals import (
+ nmlib,
+ STATUS,
+ NotmuchError,
+ NotInitializedError,
+ NotmuchDirectoryP,
+ NotmuchFilenamesP
+)
+from .filename import Filenames
+
+class Directory(object):
+ """Represents a directory entry in the notmuch directory
+
+ Modifying attributes of this object will modify the
+ database, not the real directory attributes.
+
+ The Directory object is usually derived from another object
+ e.g. via :meth:`Database.get_directory`, and will automatically be
+ become invalid whenever that parent is deleted. You should
+ therefore initialized this object handing it a reference to the
+ parent, preventing the parent from automatically being garbage
+ collected.
+ """
+
+ """notmuch_directory_get_mtime"""
+ _get_mtime = nmlib.notmuch_directory_get_mtime
+ _get_mtime.argtypes = [NotmuchDirectoryP]
+ _get_mtime.restype = c_long
+
+ """notmuch_directory_set_mtime"""
+ _set_mtime = nmlib.notmuch_directory_set_mtime
+ _set_mtime.argtypes = [NotmuchDirectoryP, c_long]
+ _set_mtime.restype = c_uint
+
+ """notmuch_directory_get_child_files"""
+ _get_child_files = nmlib.notmuch_directory_get_child_files
+ _get_child_files.argtypes = [NotmuchDirectoryP]
+ _get_child_files.restype = NotmuchFilenamesP
+
+ """notmuch_directory_get_child_directories"""
+ _get_child_directories = nmlib.notmuch_directory_get_child_directories
+ _get_child_directories.argtypes = [NotmuchDirectoryP]
+ _get_child_directories.restype = NotmuchFilenamesP
+
+ def _assert_dir_is_initialized(self):
+ """Raises a NotmuchError(:attr:`STATUS`.NOT_INITIALIZED)
+ if dir_p is None"""
+ if not self._dir_p:
+ raise NotInitializedError()
+
+ def __init__(self, path, dir_p, parent):
+ """
+ :param path: The absolute path of the directory object.
+ :param dir_p: The pointer to an internal notmuch_directory_t object.
+ :param parent: The object this Directory is derived from
+ (usually a :class:`Database`). We do not directly use
+ this, but store a reference to it as long as
+ this Directory object lives. This keeps the
+ parent object alive.
+ """
+ self._path = path
+ self._dir_p = dir_p
+ self._parent = parent
+
+ def set_mtime(self, mtime):
+ """Sets the mtime value of this directory in the database
+
+ The intention is for the caller to use the mtime to allow efficient
+ identification of new messages to be added to the database. The
+ recommended usage is as follows:
+
+ * Read the mtime of a directory from the filesystem
+
+ * Call :meth:`Database.add_message` for all mail files in
+ the directory
+
+ * Call notmuch_directory_set_mtime with the mtime read from the
+ filesystem. Then, when wanting to check for updates to the
+ directory in the future, the client can call :meth:`get_mtime`
+ and know that it only needs to add files if the mtime of the
+ directory and files are newer than the stored timestamp.
+
+ .. note::
+
+ :meth:`get_mtime` function does not allow the caller to
+ distinguish a timestamp of 0 from a non-existent timestamp. So
+ don't store a timestamp of 0 unless you are comfortable with
+ that.
+
+ :param mtime: A (time_t) timestamp
+ :raises: :exc:`XapianError` a Xapian exception occurred, mtime
+ not stored
+ :raises: :exc:`ReadOnlyDatabaseError` the database was opened
+ in read-only mode so directory mtime cannot be modified
+ :raises: :exc:`NotInitializedError` the directory object has not
+ been initialized
+ """
+ self._assert_dir_is_initialized()
+ status = Directory._set_mtime(self._dir_p, mtime)
+
+ if status != STATUS.SUCCESS:
+ raise NotmuchError(status)
+
+ def get_mtime(self):
+ """Gets the mtime value of this directory in the database
+
+ Retrieves a previously stored mtime for this directory.
+
+ :param mtime: A (time_t) timestamp
+ :raises: :exc:`NotmuchError`:
+
+ :attr:`STATUS`.NOT_INITIALIZED
+ The directory has not been initialized
+ """
+ self._assert_dir_is_initialized()
+ return Directory._get_mtime(self._dir_p)
+
+ # Make mtime attribute a property of Directory()
+ mtime = property(get_mtime, set_mtime, doc="""Property that allows getting
+ and setting of the Directory *mtime* (read-write)
+
+ See :meth:`get_mtime` and :meth:`set_mtime` for usage and
+ possible exceptions.""")
+
+ def get_child_files(self):
+ """Gets a Filenames iterator listing all the filenames of
+ messages in the database within the given directory.
+
+ The returned filenames will be the basename-entries only (not
+ complete paths.
+ """
+ self._assert_dir_is_initialized()
+ files_p = Directory._get_child_files(self._dir_p)
+ return Filenames(files_p, self)
+
+ def get_child_directories(self):
+ """Gets a :class:`Filenames` iterator listing all the filenames of
+ sub-directories in the database within the given directory
+
+ The returned filenames will be the basename-entries only (not
+ complete paths.
+ """
+ self._assert_dir_is_initialized()
+ files_p = Directory._get_child_directories(self._dir_p)
+ return Filenames(files_p, self)
+
+ @property
+ def path(self):
+ """Returns the absolute path of this Directory (read-only)"""
+ return self._path
+
+ def __repr__(self):
+ """Object representation"""
+ return "<notmuch Directory object '%s'>" % self._path
+
+ _destroy = nmlib.notmuch_directory_destroy
+ _destroy.argtypes = [NotmuchDirectoryP]
+ _destroy.argtypes = None
+
+ def __del__(self):
+ """Close and free the Directory"""
+ if self._dir_p is not None:
+ self._destroy(self._dir_p)
projects / notmuch / blobdiff