ÿØÿà JFIF    ÿÛ C    !"$"$ÿÛ C  ÿ p " ÿÄ     ÿÄ   ÿÚ   ÕÔË® (% aA*‚XYD¡(J„¡E¢RE,P€XYae )(E¤²€B¤R¥ BQ¤¢ X«)X…€¤  @ .............................................................................................................................................................................. ............................................................................. ÿØÿà JFIF    ÿÛ C    !"$"$ÿÛ C  ÿ p " ÿÄ     ÿÄ   ÿÚ   ÕÔË® (% aA*‚XYD¡(J„¡E¢RE,P€XYae )(E¤²€B¤R¥ BQ¤¢ X«)X…€¤  @ .............................................................................................................................................................................. ............................................................................. o )b@s`dZddlZddlZddlZddlZddlZGdddeZGdddeZ GdddeZ dS) z Terminal / input handling Nc@sVeZdZdZddZddZddZdd Zd d ZdddZ dddZ dddZ d S)Terminalz@ Do minimal terminal mangling to prompt users for input cCs||_d|_d|_|dSN)fd orig_flags orig_termsave)selfrr &/usr/share/netplan/netplan/terminal.py__init__"s zTerminal.__init__cCsTtjr(t|j}|dtjB|d<|dtjB|d<t|jtj |dSdSN sysstdinisattytermios tcgetattrrZICANONZECHO tcsetattrZTCSANOWrattrsr r r enable_echo(s  zTerminal.enable_echocCsXtjr*t|j}|dtj@|d<|dtj@|d<t|jtj |dSdSr rrr r r disable_echo/s  zTerminal.disable_echocCs,t|jtj}t|jtj|tjBdSrfcntlrF_GETFLF_SETFLos O_NONBLOCKrflagsr r r enable_nonblocking_io6szTerminal.enable_nonblocking_iocCs.t|jtj}t|jtj|tj@dSrrrr r r disable_nonblocking_io:szTerminal.disable_nonblocking_ioxNcCstdt}|||||sd}td||}|dkrbtd|tt|ddtt j gggdzt j }|d krO| |t Wn tyYYnw|d8}|dks%| |t) a Get a "confirmation" input from the user, for at most (timeout) seconds. Optionally, customize the message to be displayed. timeout -- timeout to wait for input (default 120) message -- optional customized message ("Press ENTER to (message)") raises: InputAccepted -- the user confirmed the changes InputRejected -- the user rejected the changes z%Do you want to keep these settings? zaccept the new configurationz&Press ENTER before the timeout to {} rz%Changes will revert in {:>{}} seconds )end )printdictrrr!formatlenstrselectrrreadreset InputAccepted TypeError InputRejected)rtimeoutmessagesettingsZ timeout_nowcr r r get_confirmation_input>s2      zTerminal.get_confirmation_inputcCsVt|jtj}d}tjrt|j}|dur#|||ddS||_ ||_ dS)z Save the terminal's current attributes and flags Optional argument: - dest: if set, save settings to this dict N)r term) rrrrrrrrupdaterr)rdestrrr r r rps    z Terminal.savecCsdd}d}|dur|d}|d}n|j}|j}tjr't|jtj |t |jt j |dS)z Reset the terminal to its original attributes and flags Optional argument: - orig: if set, reset to settings from this dict Nr8r ) getrrrrrrrrZ TCSAFLUSHrr)rorigrrr r r r/s   zTerminal.reset)r#Nr) __name__ __module__ __qualname____doc__r rrr!r"r7rr/r r r r rs  2rc@eZdZdZdS)r0z Denotes has accepted inputNr=r>r?r@r r r r r0r0c@rA)r2z) Denotes that the user has rejected inputNrBr r r r r2rCr2) r@rrrr-robjectr Exceptionr0r2r r r r sy