print "%*s %s" % (-maxlen,f[0],f[1])
            else:
                print f[0]
    if not count:
        sys.exit(1)
def cmd_version(options):
    print VERSION

def cmd_create(parsed_args):
    libdir="/usr/local/lib/vws"
    drivename="drive0.qcow2"
    options={'qemubinary':'qemu-system-x86_64',
    "accel":"-enable-kvm",
    "memory":"1024M",
    "vga":'qxl',
    "drive":"-drive media=disk,index=0,if={interface},file={image}",
    "cdrom":"-drive media=cdrom,index=2,if=ide",
    "sound":"-soundhw hda",
    "usb":"-usb"}
    macaddr=":".join(map(lambda x: "%02x"%ord(x),chr(0x52)+os.urandom(5)))

    if parsed_args.shared:
        machinedir = config.get("directories","SharedVMs")+"/"+parsed_args.name
        dirmode = 0755
    else:
        machinedir = os.environ["HOME"]+"/VWs/"+parsed_args.name
        dirmode = 0775

    if parsed_args.net != 'user':
        bridges = list_bridges()
        if not parsed_args.net in bridges:
            print >>sys.stderr,"No such bridge %s. Available ones %s"%(parsed_args.net,", ".join(bridges))
            sys.exit(1)
        options["net"]="-net nic,macaddr=%s -net bridge,br=%s"%(macaddr,parsed_args.net),
        
    else:
        options["net"]="-net nic,macaddr=%s -net user"%(macaddr,)

    options["qemubinary"] = 'qemu-system-'+parsed_args.arch
    options["vga"]=parsed_args.vga
    if not parsed_args.arch in ('i386','x86_64'):
        print >>sys.stderr,"KVM acceleration disabled due to target architecture"
        options.accel = ''
    elif not os.access("/dev/kvm",os.W_OK):
        print >>sys.stderr,"KVM acceleration disabled due to unavailability on the host system"
        options.accel = ''

    if not parsed_args.usb:
        options["usb"]=''

    if not parsed_args.sound:
        options["sound"]=''
    else:
        options["sound"]='-soundhw '+parsed_args.sound

    options["memory"]=parsed_args.mem


    #  Creating directory for VM
    os.makedirs(machinedir,dirmode)
    driveopts={"interface":parsed_args.diskif,"image":drivename}
    if parsed_args.image:
        # Copying image file
        print >>sys.stderr,"Copying %s to %s"%(parsed_args.image,machinedir+"/"+drivename) 
        os.system("qemu-img convert -O qcow2 -p %s %s/%s"%(parsed_args.image,machinedir+"/"+drivename))
        os.chdir(machinedir)
    else:
        print >>sys.stderr,"Creating new image file"
        os.chdir(machinedir)
        os.system("qemu-img create  -f qcow2 %s %s"%(drivename,parsed_args.size))

    options["drive"]=options["drive"].format(**driveopts) 
    if parsed_args.debug:
        print repr(driveopts),repr(options["drive"])
        print repr(options)
    with open(libdir+"/start.template","r") as f:
        template=f.read()
    with open("start","w") as script:
        script.write(template.format(**options))

    os.chmod('start',0755)

    # If installation media is specified vws start for new vm
    if parsed_args.install:
        start_opts=Namespace(command='start',cdrom=parsed_args.install,stopped=True)
        cmd_start(start_opts)




#
# Utility functions for arg parsing
#
def new_command(cmds,name,**kwargs):
    """
    Adds a subparser and adds a machine name argument to it
    """

p=new_command(cmds,'snapshots',help='List existing snapshots')
# Screenshoits and recording
p=new_command(cmds,'screenshoot',help='take a screenshot')
p.add_argument('filename',help='image filename to write screenshot to')
p=new_command(cmds,'record',help='Record audio output from VM')
p.add_argument('filename',help='wav file to record autdio to')
new_command(cmds,'stoprecord',help='stop recording audio')
# Create new VM
p=new_command(cmds,'create',help="Create new VM")
p.add_argument("--no-usb",help="Disable USB controller",action='store_const', const = False, default=True, dest="usb")
p.add_argument("--size",help="Size of primary disk images",dest="size",default="20G");
p.add_argument("--arch",help="Emulated architecture",dest="arch",default='x86_64');
p.add_argument("--no-sound",help="Disable sound card",action='store_const',const = None,default='hda',  dest="sound")
p.add_argument("--sound",help="Specify sound card type",dest='sound',default='hda')
p.add_argument("--vga",help="specify video card type (cirrus,std,vmwae,qxl) default qxl",dest="vga",default="qxl")
p.add_argument("--net",help="Network - 'user' or bridge name",dest='net',default="user")
p.add_argument("--mem",help="Size of memory",dest="mem",default="1024M")
p.add_argument("--diskif",help="Disk interface",dest="diskif",default="virtio")
p.add_argument('--shared',help='Create shared VM instead of private one',action='store_const',const= True,dest='shared',default=False)
p.add_argument('--image',help='Existing disk image to import',dest='image',default=None)
p.add_argument('--install',help='ISO image to install OS from',dest='install',default=None)
# Miscellenia
p=new_command(cmds,'monitor',help='connect stdin/stdout to monitor of VM')
p=new_command(cmds,'spiceuri',help='Output spice URI of machine')

parsed_args=args.parse_args(sys.argv[1:])

# Create command is totally different, so it is handled separately
if parsed_args.command == 'create':
    cmd_create(parsed_args)
    sys.exit(0)

parsed_args.stopped = False
stopped_vm_commands = ['start','snapshot','revert','commit','snapshots']
if hasattr(parsed_args,'machine'):
    parsed_args.dir=find_vm(parsed_args.machine)
    parsed_args.sock=connect_vm(parsed_args.dir)
    if parsed_args.sock  is None: