增强版的cp，增强版cp,完全兼容系统cp特性支持

增强版的cp，增强版cp,完全兼容系统cp特性支持

完全兼容系统cp特性

支持文件和目录断点续传，，显示cp速度进度，大小等等信息。

可用来替换系统cp

#!/usr/bin/python#coding:u8import osimport sysimport reimport platformimport timeclass Mfile(object):    def __init__(self,pfile,mode):        self.file_dir = os.path.dirname(pfile)        self.file_name = os.path.basename(pfile)        self.file_path = os.path.abspath(pfile)        self.file_mode = mode        self.file_md5 = 'md5'        self.file_uptime = 0        self.file_uptime_size = 0        if os.path.isfile(pfile):            self.file_size = os.path.getsize(pfile)        else:            self.file_size = 0        if self.file_size > 2000:            self.file_get_size = self.file_size - 1000            self.file_buffer_size = 1000        else:            self.file_get_size = self.file_size            self.file_buffer_size = self.file_size        try:            self.file_open=open(self.file_path,self.file_mode)        except Exception,e:            open_status=1            print e            sys.exit()    def move_tell(self,number):        pass    def __del__(self):        passdef fcp(s , d , show_size_on = 0 ):    c=10485760    sfile = Mfile(s,'rb')    dfile = Mfile(d,'ab+')    #修正指针偏移    if sfile.file_size != 0:        if (sfile.file_size != dfile.file_size) and ( dfile.file_size != 0):            dfile.file_open.seek(dfile.file_get_size,0)            sfile.file_open.seek(dfile.file_get_size,0)            if dfile.file_open.read(dfile.file_buffer_size) == sfile.file_open.read(dfile.file_buffer_size):                sfile.file_open.seek(dfile.file_size,0)                dfile.file_open.seek(0,2)            elif( 'yes' == raw_input('overwrite '+dfile.file_name+' [yes/no]:') ):                dfile.file_open.close()                dfile=Mfile(d,'wb+')                sfile.file_open.seek(0,0)            else:                sfile.file_open.seek(0,2)                dfile.file_open.seek(0,2)        elif sfile.file_size == dfile.file_size :            print 'File exists:',dfile.file_path,            sfile.file_open.seek(0,2)    #开始复制    dfile.file_uptime=time.time()    dfile_tell = sfile.file_open.tell()    if ( sfile.file_size == 0 ):        print (sfile.file_name)+' '*(50 - len(sfile.file_name)),'100% ['+ ('*'*50) +'] 0.0MB/s   | 0.0KB'    else:        while(sfile.file_open.tell() != sfile.file_size ):            buffer=sfile.file_open.read(c)            dfile.file_open.write(buffer)            if ( show_size_on == 1 ):                dfile.file_uptime_size = ( sfile.file_open.tell() - dfile_tell ) / (time.time() - dfile.file_uptime)                show_size( sfile.file_size , sfile.file_open.tell() , dfile.file_name , dfile.file_uptime_size)                #time.sleep(0.2)        else:            print ''    del sfile    del dfiledef dcp(s,d,jc=0,mshow=0):    s = os.path.abspath(s)    d = os.path.abspath(d)    if ( s == d ) or ( s == d+'/'+os.path.basename(s) ):        print 'cp :','\\''+s+'\\'','and','\\''+d+'\\'',': are the same file'        sys.exit()    #文件    elif os.path.isfile(s):        if os.path.isfile(d):            fcp(s,d, show_size_on = mshow)        elif os.path.isdir(d):            d = d+'/'+os.path.basename(s)            fcp(s,d, show_size_on = mshow)          elif os.path.isdir( os.path.dirname(d)):            fcp(s,d, show_size_on = mshow)          else:            print 'Not found file:',d    #目录递归    elif os.path.isdir(s) :        if (os.path.isfile(d)):            print 'cp :','\\''+s+'\\'','and','\\''+d+'\\'',': are the same file'            sys.exit()        elif not os.access(s,os.R_OK):            print d,': Permission denied'            sys.exit()        elif s in d:            print '\\''+s+'\\'','to','\\''+d+'\\'',": File error"            sys.exit()        #确定目标文件夹根路径（只调用一次）        elif ( jc == 0 ):            jc += 1            if os.path.isdir(d):                d = d+'/'+ os.path.basename(s)        if os.path.isdir( os.path.dirname(d)):            if not os.path.isdir(d):                os.mkdir(d)        else:            print  'Not found :',os.path.dirname(d)            sys.exit()        for x in os.listdir(s):                dcp(s+'/'+x ,d+'/'+x , jc ,mshow = mshow )    elif not os.path.exists(s):        print s,': No such file or directory'def show_size(total_size , tail_size , filename , minute_size):    filename = (filename)+' '*(50 - len(filename))    #百分比    if ( tail_size !=  total_size ):        rate = (float(tail_size) / float(total_size) * 100)        rate_sum = '%d%s' % (rate,'%')    else:        rate_sum = str(100)+'%'    #进度条    jd_size = '*' * (int(float(tail_size) / float(total_size) * 50))    jd_size = '[%s%s]' % (jd_size , (' ' * (50 - len(jd_size))))    #速度    i=0    #minute_size = minute_size / 2    while ( minute_size >= 1024 and i <= 2):        minute_size = float(minute_size) / float(1024)        i = i + 1    else:        if i == 0:            minute_size = str(round(minute_size,1)) + 'k/s'        elif i == 1:            minute_size = str(round(minute_size,1)) + 'kB/s'        elif i == 2:            minute_size = str(round(minute_size,1)) + 'MB/s'    minute_size = '%s%s' % ( minute_size , ( ' ' * (10 - len(str(minute_size)) )))    #已经复制大小    i=0    while ( tail_size >= 1024 and i < 2):        tail_size = float(tail_size) / float(1024)        i = i+1    else:        if i == 0 :            tail_size = str(round(tail_size))+'K'        elif i == 1:            tail_size = str(round(tail_size))+'KB'        elif i == 2:            tail_size = str(round(tail_size))+'M'    print '\\r',filename , rate_sum , jd_size , minute_size , '|' , tail_size, '   ',    sys.stdout.flush()if __name__ == '__main__':    sys_type=platform.system()    if ( sys_type == 'Windows'):        sfile=raw_input('source File:')        dfile=raw_input('destination File:')        try:            dcp(sfile,dfile)        except KeyboardInterrupt:            sys.exit()        os.system('pause')    else:        filelist=[]        for x in sys.argv[1:]:            if not re.match('-(.*)$', x):                filelist.append(x)        if ( len(filelist) == 2 ):            try:                dcp( filelist[0] , filelist[1] , mshow = 1)            except KeyboardInterrupt:                sys.exit()        else:            print '[ERROR]'            print '  example :[ cp sfile dfile ]'#该片段来自于http://byrx.net