o 7U @sPddlmZddlZddlZddlZddlZddlZddZGdddeZ dS))absolute_importNc Csdt|s dSztdt|tjd}W|Sztj dtj df}WY|SYYdS)z Return a tuple (rows,cols) representing the size of the TTY `fd`. The provided file descriptor should be the stdout stream of the TTY. If the TTY size cannot be determined, returns None. NhhhhhhLINESCOLUMNS) osisattyfilenostructunpackfcntlioctltermios TIOCGWINSZenviron)fddimsr//usr/lib/python3/dist-packages/dockerpty/tty.pysizes rc@sJeZdZdZdddZddZddZd d Zd d Zd dZ ddZ dS)Terminalz Terminal provides wrapper functionality to temporarily make the tty raw. This is useful when streaming data from a pseudo-terminal into the tty. Example: with Terminal(sys.stdin, raw=True): do_things_in_raw_mode() TcCs||_||_d|_dS)a Initialize a terminal for the tty with stdin attached to `fd`. Initializing the Terminal has no immediate side effects. The `start()` method must be invoked, or `with raw_terminal:` used before the terminal is affected. N)rraworiginal_attributes)selfrrrrr__init__=s  zTerminal.__init__cCs ||S)z? Invoked when a `with` block is first entered. )startrrrr __enter__KszTerminal.__enter__cGs |dS)z: Invoked when a `with` block is finished. N)stop)r_rrr__exit__Ts zTerminal.__exit__cCs|jS)zE Returns True if the TTY should operate in raw mode. )rrrrrisraw\szTerminal.israwcCs>t|jr|rt|j|_t |jdSdSdS)z} Saves the current terminal attributes and makes the tty raw. This method returns None immediately. N) rrrr r!r tcgetattrrttysetrawrrrrrdszTerminal.startcCs&|jdurt|jtj|jdSdS)z Restores the terminal attributes back to before setting raw mode. If the raw terminal was not started, does nothing. N)rr tcsetattrr TCSADRAINrrrrrps z Terminal.stopcCsdjt|j|j|jdS)Nz{cls}({fd}, raw={raw}))clsrr)formattype__name__rrrrrr__repr__~s zTerminal.__repr__N)T) r* __module__ __qualname____doc__rrr r!rrr+rrrrr1s   r) __future__rrrr#r r robjectrrrrrs