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Code Issues Releases Wiki Activity

Added generic callback support

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This commit is contained in:
Jonas Borgström 2011-09-12 21:34:09 +02:00
parent e9ef5de0e8
commit 217da798ab
4 changed files with 20 additions and 12 deletions
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2
darc/archive.py
View file

@ -203,10 +203,12 @@ def extract_item(self, item, dest=None, start_cb=None, restore_attrs=True):
os.makedirs(os.path.dirname(path))
# Hard link?
if 'source' in item:
def link_cb(_, __, item):
source = os.path.join(dest, item['source'])
if os.path.exists(path):
os.unlink(path)
os.link(source, path)
self.store.add_callback(link_cb, item)
else:
def extract_cb(chunk, error, (id, i)):
if i == 0:

4
darc/archiver.py
View file

@ -137,8 +137,10 @@ def extract_cb(item):
else:
archive.extract_item(item, args.dest, start_cb)
if dirs and not item['path'].startswith(dirs[-1]['path']):
def cb(_, __, item):
# Extract directories twice to make sure mtime is correctly restored
archive.extract_item(dirs.pop(-1), args.dest)
archive.extract_item(item, args.dest)
store.add_callback(cb, dirs.pop(-1))
store = self.open_store(args.archive)
key = Key(store)
manifest = Manifest(store, key)

11
darc/remote.py
View file

@ -125,7 +125,7 @@ def cmd(self, cmd, args, callback=None, callback_data=None):
self.odata.append(msgpack.packb((1, self.msgid, cmd, args)))
self.recursion += 1
if callback:
self.callbacks[self.msgid] = callback, callback_data
self.add_callback(callback, callback_data)
if self.recursion > 1:
self.recursion -= 1
return
@ -146,8 +146,7 @@ def cmd(self, cmd, args, callback=None, callback_data=None):
self.recursion -= 1
return res
else:
c, d = self.callbacks.pop(msgid, (None, None))
if c:
for c, d in self.callbacks.pop(msgid, []):
c(res, error, d)
elif self.odata and self.channel.send_ready():
data = self.odata.pop(0)
@ -184,6 +183,9 @@ def put(self, id, data, callback=None, callback_data=None):
def delete(self, id, callback=None, callback_data=None):
return self.cmd('delete', (id, ), callback, callback_data)
def add_callback(self, cb, data):
self.callbacks.setdefault(self.msgid, []).append((cb, data))
def flush_rpc(self, counter=None, backlog=0):
counter = counter or self.notifier.enabled
while counter > backlog:
@ -199,8 +201,7 @@ def flush_rpc(self, counter=None, backlog=0):
self.unpacker.feed(self.channel.recv(BUFSIZE))
for type, msgid, error, res in self.unpacker:
self.notifier.enabled.dec()
c, d = self.callbacks.pop(msgid, (None, None))
if c:
for c, d in self.callbacks.pop(msgid, []):
c(res, error, d)
if msgid == self.msgid:
return

3
darc/store.py
View file

@ -235,6 +235,9 @@ def delete(self, id):
def flush_rpc(self, *args):
pass
def add_callback(self, cb, data):
cb(None, None, data)
class LoggedIO(object):