python+fastdfs+nginx实现打包下载功能

环境介绍：生产服务器开发人员需要给client下发数据，主要是图片及视频；图片服务器用fastdfs，下载由nginx 来提供；

java 程序来调用此脚本，传递参数来决定打包文件内容；

#!/usr/bin/env python
#coding:utf-8
"""修改一些模块,使用python 自带模块;增加日志记录;"""
import sys,subprocess,os,time,json,shutil,logging
logname = time.strftime("%Y_%m_%d.log")
logging.basicConfig(level=logging.DEBUG,
                    format=‘%(asctime)s %(levelname)s       %(message)s‘,
                    datefmt=‘%a, %d %b %Y %H:%M:%S‘,
                    filename=logname,
                    filemode=‘w‘)
class Global(object):
    """此脚本用来处理打包文件:传参来决定打包什么文件,并记录打包记录;
    """
    def __init__(self):
        pass

    def args_Counts(self):   ##############检测参数的长度
        counts = len(sys.argv)
        if counts == 1 :     ######windows test
            sys.exit(10)
        else:
            if os.path.isfile(‘argv.txt‘):    ######检测这个存在这个文件
                logging.warning("The argvs file is exist...,WARNING!----------- ")
                os.remove(‘argv.txt‘)

            with open("argv.txt",‘a+‘) as fp:
                for i in sys.argv[1:]:
                    fp.write(i+"\n")

    def args_Change(self):
        file_con = open("argv.txt",‘r‘)
        dirtory = ‘‘
        for i in file_con:
            try:
                argschange = json.loads(i)        #########解析json
                key = argschange.keys()[0]        #########获取字典的key,目录的名字
                name = argschange.get(key)           #########获取字典的values,需要下载的文件名字----> list
                dest = ‘/home/fastdfs/storage/data/‘      #####新fastdfs 的文件存储路
            except Exception,e:
                logging.warning("Something is wrong %s----------"%e)
                sys.exit(10)
            #dest = ‘/home/fastdfs/storage/files-data/data‘        #旧fastdfs

            if os.path.isdir(key):
                logging.warning("The directory %s is exist and will delete it-----------"%key)
                shutil.rmtree(key)
                logging.info("The directory %s is not exist and will create it++++++++++"%key)
                os.mkdir(key)
            else:
                logging.info("The directory %s is not exist and will create it++++++++++"%key)
                os.mkdir(key)

            if os.path.isfile(key):
                logging.warning("Error,program is Error----------")
                sys.exit(20)
            for i,k in enumerate(name):                              ########拷贝部分
                dest_dir = os.path.dirname(k).split("M00/")[1]      #########切割fastdfs 的文件路径,减少查找时间,精确查找
                img_name = os.path.basename(k)                       #########合成路径
                img_dest1 = dest+dest_dir+os.path.sep+img_name       #########最近上传路径
                img_dest2 = dest+"data/"+dest_dir+os.path.sep+img_name   #########以前上传的路径
                if os.path.isfile(img_dest1) :     ###############################优化查找部分,并记录
                    logging.info("Find %s++++++++++"%img_name)
                    shutil.copy(img_dest1,key)
                    logging.info("Copy %s %s++++++++++"%(img_dest1,key))
                else:
                    logging.warning("Not find %s and change directory to find ------"%img_name)
                    if os.path.isfile(img_dest2):
                        logging.info("Find %s++++++++++" % img_name)
                        shutil.copy(img_dest2, key)
                        logging.info("Copy %s %s++++++++++" % (img_dest2, key))

            dirtory += key + ‘ ‘
        #     # print dirtory
        bdass = time.strftime("%H%M%S")
        zip_name = "bdass" + bdass + ".zip"
        child_zip = subprocess.Popen(‘zip -r ‘ + zip_name +" "+ dirtory,shell=True)
        child_zip.wait()
        if os.path.isfile(zip_name):
            logging.info("Compress successfuly++++++++++")
            logging.info("End and Clean workplace++++++++++")
        else:
            logging.warning("Compress failed----------")
            sys.exit(10)
        shutil.move(zip_name,"/usr/local/nginx/html/download/")
        print zip_name
        file_con.seek(0)
        for i in file_con:
            argschange = json.loads(i)        #########解析json
            key = argschange.keys()[0]        #########获取字典的key,目录的名字
            if os.path.isdir(key):
                shutil.rmtree(key)

    def zip_Images(self):  #####结束部分，删除文件
        if os.path.isfile(‘./argv.txt‘):
            os.remove(‘./argv.txt‘)

system = Global()
if __name__ == "__main__":
    logging.info("Begin" + "+" * 20)
    system.args_Counts()
    system.args_Change()
    system.zip_Images()

　　调用命令：python remote_zip_enhance.py ‘{"2017092268":["group1/M00/00/00/rB95q1nCGD-AHb-fAAvTKbrr9GI895.png","group1/M00/00/0D/rB95rFm3iuGAYHO2AAjMFXpe4oI406.png","group1/M00/00/04/rB95rFmmja-AVWspAAx1vgabK-I426.png"]}‘ ‘{"2017092274":["group1/M00/00/00/rB95q1nCGD-AHb-fAAvTKbrr9GI895.png","group1/M00/00/0D/rB95rFm3iuGAYHO2AAjMFXpe4oI406.png","group1/M00/00/04/rB95rFmmja-AVWspAAx1vgabK-I426.png"]}‘

　　此前写过基本功能的，有些BUG，打包偶尔有错误；