shellscripts/check_file_md5.py at master · ikakarotto/shellscripts · GitHub

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# coding: utf-8
'''
用于检查文件md5是否正确,类似linux下md5sum -c md5.txt的功能
'''
import sys
import os
import getopt
import hashlib

def get_md5(argv):
    for filename in argv:
        if os.path.isfile(filename):
            fb = open(filename,'rb')
            md5 = hashlib.md5(fb.read()).hexdigest()
            fb.close()
            print(md5 + ' ' + filename)
        else:
            print('< ' + filename + ' > No such file.')

def check_md5(md5file):

    if os.path.isfile(md5file):
        pass
    else:
        print('md5file not found.')
        sys.exit(1)

    for line in open(md5file, 'r').readlines():
        if len(line.split()) == 2:
            filemd5 = line.split()[0]
            filename = line.split()[1]
            # print(line.strip())

            if os.path.isfile(filename):
                fb = open(filename,'rb')
                md5 = hashlib.md5(fb.read()).hexdigest()
                fb.close()

                if filemd5 == md5:
                    print(filename + ': OK')
                else:
                    print(filename + ': FAILED')

            else:
                print(filename + ' not found.')

        else:
            print(line.strip() + ' data error')

def main(argv):
    try:
        opts, args = getopt.getopt(argv, "hc:", ["help", "check="])
        #print(opts)
        #print(args)

    except getopt.GetoptError:
        print(sys.argv[0] + ' -c/--check <md5_filename>')
        sys.exit(2)

    if len(args) == 0:
        for opt, arg in opts:
            if opt in ("-h", "--help", "help"):
                print(sys.argv[0] + ' -c/--check <md5_filename>')
                sys.exit()
            elif opt in ("-c", "--check"):
                md5file = arg
                check_md5(md5file)
    else:
        get_md5(args)

if __name__ == "__main__":
    main(sys.argv[1:])