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#!/usr/bin/python3
import os
import uuid
import time
import pickle
START_DIR = "/storage/animes"
DB_FILENAME = "/storage/animes.db"
uuid_msg = '''{uuid}
creation_date: {date}
orig_hostname: {hostname}
'''
def create_uuid_txt(root, hostname=os.uname()[1]):
my_uuid = str(uuid.uuid4())
with open(os.path.join(root, 'uuid.txt'), 'w') as out:
out.write(uuid_msg.format(uuid=my_uuid,
date=time.strftime('%F %T'),
hostname=hostname))
return my_uuid
def partition(pred, iterable):
'Use a predicate to partition entries into false and true entries'
result = [], []
for x in iterable:
result[pred(x)].append(x)
return result
def main():
db = []
with open(DB_FILENAME + '.new', 'wb') as out:
for root, dirs, files in os.walk(START_DIR):
if not len(files):
continue
files, uuids = partition(lambda f: '/uuid.txt' in f,
(os.path.join(root, f) for f in files))
if len(uuids) == 1:
my_uuid = open(uuids[0]).readline().strip()
else:
if uuids:
print('removing:', uuids)
for f in uuids:
os.unlink(f)
my_uuid = create_uuid_txt(root)
db.append((my_uuid, [(f, os.stat(f).st_size) for f in files]))
pickle.dump(db, out)
os.rename(DB_FILENAME + '.new', DB_FILENAME)
if __name__ == '__main__':
main()
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