8 # This code is based on the Mark Edgington's crecord extension.

     8 # This code is based on the Mark Edgington's crecord extension.

     9 # (Itself based on Bryan O'Sullivan's record extension.)

     9 # (Itself based on Bryan O'Sullivan's record extension.)

    10 

    10 

    11 from __future__ import absolute_import

    11 from __future__ import absolute_import

    12 

    12 

    14 import os

    13 import os

    15 import re

    14 import re

    16 import signal

    15 import signal

    17 

    16 

    18 from .i18n import _

    17 from .i18n import _

   572     curses interface to get selection of chunks, and mark the applied flags

   571     curses interface to get selection of chunks, and mark the applied flags

   573     of the chosen chunks.

   572     of the chosen chunks.

   574     """

   573     """

   575     ui.write(_(b'starting interactive selection\n'))

   574     ui.write(_(b'starting interactive selection\n'))

   576     chunkselector = curseschunkselector(headerlist, ui, operation)

   575     chunkselector = curseschunkselector(headerlist, ui, operation)

   580     origsigtstp = sentinel = object()

   576     origsigtstp = sentinel = object()

   581     if util.safehasattr(signal, b'SIGTSTP'):

   577     if util.safehasattr(signal, b'SIGTSTP'):

   582         origsigtstp = signal.getsignal(signal.SIGTSTP)

   578         origsigtstp = signal.getsignal(signal.SIGTSTP)

   583     try:

   579     try:

   585         if chunkselector.initexc is not None:

   582         if chunkselector.initexc is not None:

   586             raise chunkselector.initexc

   583             raise chunkselector.initexc

   587         # ncurses does not restore signal handler for SIGTSTP

   584         # ncurses does not restore signal handler for SIGTSTP

   588     finally:

   585     finally:

   589         if origsigtstp is not sentinel:

   586         if origsigtstp is not sentinel: