from ftplib import FTP

stream = open("version.txt", 'r')

def writeline_cb(line):
    stream.writelines(line + "\n")

if __name__ == "__main__":
    
    line1 = stream.readline().replace("\n","")
    stream.close()
    
    try:
        stream3 = open("musicpainter.config", 'r')
        username = stream3.readline().replace("\n","")
        ip = stream3.readline().replace("\n","")
        stream3.close()
    except:
        username = "Guest"
        ip = "musicpainter.media.mit.edu"
            
    ftp = FTP(ip, "musicpainter", "medialab")
    stream2 = open("srv_version.txt",'w')
    ftp.retrlines("RETR src/version.txt", stream2.writelines)
    stream2.close()
    
    stream2 = open("srv_version.txt",'r')
    line2 = stream2.readline().replace("\n","")
    stream2.close()
    
    if line1 == line2:
        print "You're using the latest version!"
    else:
        print "Start downloading the latest version!"
        stream4 = open("blank.sco", 'r')
        log = username + "_update_version.log"
        ftp.storlines("STOR log/" + log, stream4)
        stream4.close()
        
        list = ftp.nlst("src/*.*")
        for i in range(len(list)):
            stream = open(list[i], 'w')
            msg = ftp.retrlines("RETR src/" + list[i], writeline_cb)
            print "Downloading " + list[i] + "...." + msg
            stream.close()
        print "You're using the latest version!"
#    except:
#        print "Ignore update"
    ftp.quit()