Created
December 13, 2014 22:25
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save and restore mtime from all files in a dir
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#! /usr/bin/env python | |
# coding: utf-8 | |
import hashlib | |
from os import listdir, path, utime | |
import time | |
import pickle | |
import sys | |
mtimes = {} | |
def save_mtimes(): | |
for file in listdir('.'): | |
print('Saving {} mtime...'.format(file)) | |
mtimes[calc_file_md5(file)] = path.getmtime(file) | |
pickle.dump(mtimes, open('mtimes.pickle', 'wb')) | |
def restore_mtimes(): | |
mtimes = pickle.load(open('mtimes.pickle', 'rb')) | |
for file in listdir('.'): | |
file_md5 = calc_file_md5(file) | |
if file_md5 in mtimes: | |
print 'Restauring {} mtime...'.format(file) | |
utime(file, (mtimes[file_md5], mtimes[file_md5])) | |
def calc_file_md5(filename): | |
return hashlib.md5(open(filename).read()).hexdigest() | |
if __name__ == '__main__': | |
args = sys.argv | |
if len(args) != 2 or args[1].lower() not in ('save', 'restore'): | |
print('Arg must be \'save\' or \'restore\'') | |
action = args[1].lower() | |
{ | |
'save': save_mtimes, | |
'restore': restore_mtimes | |
}[action]() |
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