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#_*_encoding:utf-8_*_
 
#-------------------------------------------------------------------------------
 
# Name:        文件夹常用操作
 
# Purpose:
 
#
 
# Author:      QiuChangJie
 
#
 
# Created:     07/06/2015
 
# Copyright:   (c) cj.qiu 2015
 
# Licence:     <your licence>
 
#-------------------------------------------------------------------------------

import sys
import os
import shutil
import platform


class FileUtils:
    @staticmethod
    def fileFilterExt(args, dirn, fln):
        for fls in fln:
            if fls.lower().endswith(args[1].lower()) and os.path.isfile(os.path.join(dirn, fls)):
                args[0].append(os.path.join(dirn,fls))

    @staticmethod
    def dirFilterExt(args, dirn, fln):
        for fls in fln:
            if fls.lower().endswith(args[1].lower()) and os.path.isdir(os.path.join(dirn, fls)):
                args[0].append(os.path.join(dirn,fls))

    # 根据文件扩展名获取文件
    @staticmethod
    def getFiles(root, ext):
        fileList = list()
        os.path.walk(root, FileUtils.fileFilterExt, (fileList, ext))
        return fileList

    # 获取文件夹
    @staticmethod
    def getDirs(root, ext):
        dirList = list()
        os.path.walk(root, FileUtils.dirFilterExt, (dirList, ext))
        return dirList

    # 复制文件到指定目录
    @staticmethod
    def copyFileExt(src, dst):
        if not os.path.exists(src):
            print(str.format("%s is not exists", src))
            return

        dirList = FileUtils.getDirs(src, "")
        for d in dirList:
            subDir = d[len(src) + 1:]
            if not os.path.exists(os.path.join(dst, subDir)):
                os.mkdir(os.path.join(dst, subDir))

        fileList = FileUtils.getFiles(src, "")
        for f in fileList:
            subName = f[len(src) + 1:]
            shutil.copy(f, os.path.join(dst, subName))