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#!/usr/bin/env python

# -*- coding: utf-8 -*-

"""

# -------------------------------------------------------------------------------

# FileName: [file_dir_compare.py]

# Purpose: [compare dir A and B]

# -------------------------------------------------------------------------------

"""

# import necessary module

import os

import shutil

# these modules for file searching

from os.path import walk

# PathA stored some dirs and files not in PathB

PathA = "D:\\PathA\\"

PathB = "D:\\PathB\\"

# PathC for output

PathC = "D:\\PathC\\"

# ============================================================

def handle(arg, dirname, filenames):

"""

Purpose / Usage: Handle callback func or search each dir and file in PathA by recursion

if the dir or file does not find in PathB then create the dir and copy files.

Parameter(s):@arg, @dirname, @filenames

"""

# for showing progress

print dirname

# remove root dir

diretory = dirname.replace(PathA, "")

dirnameB = os.path.join(PathB, diretory)

dirnameC = os.path.join(PathC, diretory)

if os.path.isdir(dirnameB):

# if there are dirs in PathB same with PathA, then compare if files are existing.

for file in filenames:

if os.path.isfile(os.path.join(dirname, file)) and not os.path.isfile(os.path.join(dirnameB, file)):

if not os.path.isdir(dirnameC):

os.system("mkdir %s" % (dirnameC))

shutil.copy2(os.path.join(dirname, file), os.path.join(dirnameC, file))

elif os.path.isdir(os.path.join(dirname, file)) and not os.path.isdir(os.path.join(dirnameB, file)):

if not os.path.isdir(os.path.join(dirnameC, file)):

os.system("mkdir %s" % (os.path.join(dirnameC, file)))

else:

# if there is no same dir, then create the dir in PatchC, and copy files

if not os.path.isdir(dirnameC):

os.system("mkdir %s" % (dirnameC))

for file in filenames:

shutil.copy2(os.path.join(dirname, file), os.path.join(dirnameC, file))

# shutil.copy2 func can original date and time of files.

# ============================================================

if __name__ == "__main__":

walk(PathA, handle, 0)

# call handle func recursively