def directoryChangedEvent(self, childName):
if childName:
# If we're observing a folder and something changes (deep)
# inside of it, notify.
# TODO: keep a childrenByName dict so we won't have to loop
for child in self.children.values():
if child.name == childName:
childPath = os.path.join(self.path, child.name)
child.callCallbacks(childPath, childPath, True)
break
return
inodes = {} # gather the inodes that _may_ have changed
for name in os.listdir(self.path):
childPath = os.path.join(self.path, name)
st = os.stat(childPath)
if st.st_ino in self.children:
inodes[st.st_ino] = (name, st.st_mtime)
# add inodes for files/folders that were no longer found
for inode in set(self.children) - set(inodes):
# This one moved away
inodes[inode] = (self.children[inode].name, None)
movedOrDeleted = []
for inode, (name, modTime) in inodes.items():
child = self.children[inode]
oldPath = os.path.join(self.path, child.name)
if modTime is None:
# This file or folder moved somewhere else or got deleted. Let's find out
# by resolving our bookmark data
url, isStale, error = NSURL.URLByResolvingBookmarkData_options_relativeToURL_bookmarkDataIsStale_error_(
child.bookmarkData, 0, None, None, None)
if url is None:
# file was deleted
newPath = None
child.name = None
wasModified = False
else:
# TODO: Check whether it was moved to the trash, and treat special
# os.listdir() will fail on a Trash folder
newPath = url.path()
child.name = os.path.basename(newPath) # update name
bookmarkData, error = url.bookmarkDataWithOptions_includingResourceValuesForKeys_relativeToURL_error_(
0, None, None, None)
assert error is None, error
child.bookmarkData = bookmarkData
wasModified = child.modTime != os.stat(newPath).st_mtime
wasRenamed = True
movedOrDeleted.append((inode, child, newPath))
else:
wasModified = child.modTime != modTime
if wasModified:
child.modTime = modTime
wasRenamed = child.name != name
if wasRenamed:
child.name = name
newPath = os.path.join(self.path, name)
else:
newPath = oldPath
if wasRenamed or wasModified:
child.callCallbacks(oldPath, newPath, wasModified)
for inode, child, newPath in movedOrDeleted:
del self.children[inode]
return movedOrDeleted
