def truncate(self, path, length, fh=None):
realpath = self.remotepath(path)
cachefile = self.cachefile(realpath)
if not os.path.exists(cachefile):
if self.empty_file(realpath):
self.create(path, 'wb')
else:
task = Task(
xxhash.xxh64(realpath).intdigest(), self.getfile, realpath)
self.taskpool.submit(task)
self.taskpool.wait(xxhash.xxh64(realpath).intdigest())
status = os.truncate(cachefile, length)
self.logger.info(self.extract(os.lstat(cachefile)))
self.attributes.insert(realpath, self.extract(os.lstat(cachefile)))
task = Task(
xxhash.xxh64(realpath).intdigest(), self._truncate, realpath,
length)
self.taskpool.submit(task)
return status
def write(self, path, data, offset, fh):
realpath = self.remotepath(path)
cachefile = self.cachefile(realpath)
if not os.path.exists(cachefile):
if self.empty_file(realpath):
self.create(path, 'wb')
else:
task = Task(
xxhash.xxh64(realpath).intdigest(), self.getfile, realpath)
self.taskpool.submit(task)
self.taskpool.wait(xxhash.xxh64(realpath).intdigest())
with open(cachefile, 'rb+') as outfile:
outfile.seek(offset, 0)
outfile.write(data)
self.attributes.insert(realpath, self.extract(os.lstat(cachefile)))
task = Task(
xxhash.xxh64(realpath).intdigest(), self._write, realpath, data,
offset)
self.taskpool.submit(task)
return len(data)
def read(self, path, size, offset, fh):
path = self.remotepath(path)
cachefile = self.cachefile(path)
if os.path.exists(cachefile):
with open(cachefile, 'rb') as infile:
infile.seek(offset, 0)
return infile.read(size)
task = Task(xxhash.xxh64(path).intdigest(), self.getfile, path)
self.taskpool.submit(task)
with self.sftp.open(path, 'rb') as infile:
infile.seek(offset, 0)
return infile.read(size)
def truncate(self, path, length, fh=None):
path = self.remotepath(path)
self.logger.info('truncate {}'.format(path))
cachefile = self.cachefile(path)
if not os.path.exists(cachefile):
raise FuseOSError(ENOENT)
status = os.truncate(cachefile, length)
self.logger.info(self.extract(os.lstat(cachefile)))
self.attributes.insert(path, self.extract(os.lstat(cachefile)))
task = Task(
xxhash.xxh64(path).intdigest(), self._truncate, path, length)
self.taskpool.submit(task)
return status
def write(self, path, data, offset, fh):
path = self.remotepath(path)
cachefile = self.cachefile(path)
if not os.path.exists(cachefile):
raise FuseOSError(ENOENT)
with open(cachefile, 'rb+') as outfile:
outfile.seek(offset, 0)
outfile.write(data)
self.attributes.insert(path, self.extract(os.lstat(cachefile)))
task = Task(
xxhash.xxh64(path).intdigest(), self._write, path, data, offset)
self.taskpool.submit(task)
return len(data)
def update_attributes(self):
cache = self.attributes.cache.copy()
for path, value in cache.items():
self.logger.info(path)
attr = ENOENT
try:
attr = self.fs.extract(self.sftp.lstat(path))
except Exception as e:
self.logger.info(e)
if value != attr:
self.attributes.insert(path, attr)
if not self.can_skip_update(path, value, attr):
self.unlink(path)
task = Task(
xxhash.xxh64(path).intdigest(), self.fs.getfile, path)
self.taskpool.submit(task)