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# -*- coding: utf-8 -*-
#
# QBzr - Qt frontend to Bazaar commands
# Copyright (C) 2007 Lukáš Lalinský <lalinsky@gmail.com>
#
# This program 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 2
# of the License, or (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
import sys
from bzrlib import (
errors,
osutils,
workingtree,
)
from PyQt4 import QtCore
class CacheEntry(object):
__slots__ = ['status', 'children']
def __init__(self):
self.status = 'unknown'
self.children = {}
def __repr__(self):
return '(%s, %r)' % (self.status, self.children)
class StatusCache(QtCore.QObject):
def __init__(self, window):
QtCore.QObject.__init__(self)
self.fileSystemWatcher = QtCore.QFileSystemWatcher(self)
self.connect(self.fileSystemWatcher,
QtCore.SIGNAL("directoryChanged(QString)"),
self.invalidateDirectory)
self.autoRefreshPath = None
self.autoRefreshTimer = QtCore.QTimer(self)
self.autoRefreshTimer.setSingleShot(True)
self.connect(self.autoRefreshTimer,
QtCore.SIGNAL("timeout()"),
self.autoRefresh)
self.window = window
self.cache = CacheEntry()
def _cacheStatus(self, path, status, root=None):
if root is None:
root = self.cache
entry = root
for part in path:
if part not in entry.children:
entry.children[part] = CacheEntry()
entry = entry.children[part]
entry.status = status
return entry
def _getCacheEntry(self, parts):
entry = self.cache
for part in parts:
entry = entry.children[part]
return entry
def _cacheDirectoryStatus(self, path):
p = '/'.join(path)
if sys.platform != 'win32':
p = '/' + p
#print "caching", p
try:
# to stop bzr-svn from trying to give status on svn checkouts
#if not QtCore.QDir(p).exists('.bzr'):
# raise errors.NotBranchError(p)
wt, relpath = workingtree.WorkingTree.open_containing(p)
except errors.BzrError:
self.fileSystemWatcher.addPath(p)
return self._cacheStatus(path, 'non-versioned')
self.fileSystemWatcher.addPath(wt.basedir)
bt = wt.basis_tree()
root = self._cacheStatus(osutils.splitpath(wt.basedir), 'branch')
delta = wt.changes_from(bt, want_unchanged=True, want_unversioned=True)
for entry in delta.added:
self._cacheStatus(osutils.splitpath(entry[0]), 'added', root=root)
for entry in delta.removed:
# FIXME
self._cacheStatus(osutils.splitpath(entry[0]), 'modified', root=root)
# self._cacheStatus(osutils.splitpath(entry[0]), 'removed', root=root)
for entry in delta.modified:
self._cacheStatus(osutils.splitpath(entry[0]), 'modified', root=root)
for entry in delta.unchanged:
self._cacheStatus(osutils.splitpath(entry[0]), 'unchanged', root=root)
for entry in delta.unversioned:
self._cacheStatus(osutils.splitpath(entry[0]), 'non-versioned', root=root)
try:
return self._getCacheEntry(path)
except KeyError:
self.fileSystemWatcher.addPath(p)
return self._cacheStatus(path, 'non-versioned')
def getFileStatus(self, path, name):
try:
parentEntry = self._getCacheEntry(path)
except KeyError:
parentEntry = None
if parentEntry is None or parentEntry.status == 'unknown':
parentEntry = self._cacheDirectoryStatus(path)
try:
entry = parentEntry.children[name]
except KeyError:
if parentEntry.status == 'non-versioned':
return 'non-versioned'
else:
if sys.platform == 'win32':
return 'non-versioned'
print "NOW WHAT??"
return entry.status
def getDirectoryStatus(self, path, name):
path = path + [name]
try:
entry = self._getCacheEntry(path)
except KeyError:
entry = self._cacheDirectoryStatus(path)
else:
if entry.status == 'unknown':
entry = self._cacheDirectoryStatus(path)
#print path, entry.status
return entry.status
def invalidateDirectory(self, path):
path = unicode(path)
try:
parts = osutils.splitpath(path)
entry = self.cache
for part in parts[:-1]:
entry = entry.children[part]
print "Removing", path, "from the cache"
del entry.children[parts[-1]]
except KeyError:
pass
else:
self.autoRefreshPath = path
self.autoRefreshTimer.start(1000)
def autoRefresh(self):
self.window.autoRefresh(self.autoRefreshPath)
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