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cache.py
64 lines (56 loc) · 1.69 KB
/
cache.py
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import sys
sys.dont_write_bytecode = True
import os
import threading
import shutil as sh
import logging
import pickle
import cloud
import util
def get(key, remote):
if remote:
return pickle.loads(cloud.bucket.getf(key).read())
else:
return pickle.load(open(util.cachePath(key), 'r'))
def put(key, obj, remote):
if remote:
cloud.bucket.putf(pickle.dumps(obj), key)
else:
path = util.cachePath(key)
dire = os.path.dirname(path)
if not os.path.exists(dire):
os.makedirs(dire)
pickle.dump(obj, open(path, 'w'))
def delete_prefix(prfix):
num_threads = 10
object_list = cloud.bucket.list(prefix=prfix)
object_list.sort(key = lambda x: x.count('/'), reverse = True)
object_iterator = iter(object_list)
print object_list
#object_iterator = cloud.bucket.iterlist(prefix=prfix)
iterator_lock = threading.Lock()
def delete_file():
try:
while True:
with iterator_lock:
obj_path = object_iterator.next()
cloud.bucket.remove(obj_path)
except StopIteration:
pass
remove_threads = []
for _ in xrange(num_threads):
remove_thread = threading.Thread(target=delete_file)
remove_thread.start()
remove_threads.append(remove_thread)
for remove_thread in remove_threads:
remove_thread.join()
def clear(prefix, remote):
if (remote):
k = cloud.call(delete_prefix, prefix)
return cloud.result(k)
else:
path = util.cachePath(prefix)
if (os.path.isdir(path)):
sh.rmtree(path)
elif (os.path.isfile(path)):
os.remove(path)