差异备份
import os import filecmp import shutil dir1 = r"./a" dir2 = r"./b" def a(dir1,dir2): cc = [] d1 = os.path.abspath(dir1) d2 = os.path.abspath(dir2) a1 = filecmp.dircmp(d1,d2) cc += a1.diff_files + a1.left_only print("差异列表:",cc) if cc: for i3 in cc: # print(os.path.join(d1,i3)) if os.path.isfile(os.path.join(d1,i3)): shutil.copy2(os.path.join(d1,i3),d2) else: os.makedirs(os.path.join(d2,i3)) a(os.path.join(d1,i3),os.path.join(d2,i3)) else: a2 = a1.left_list for i in a2: if os.path.isdir(os.path.join(d1,i)): a(os.path.join(d1,i), os.path.join(d2,i)) a(dir1,dir2)
缺点:
a目录中修改了一个文件的文件名,那么b路径中会重新创建a目录中被修改的目录.