diff mercurial/crecord.py @ 45011:1bab6b61b62b stable

curses: do not initialize LC_ALL to user settings (issue6358)

701341f57ceb moved the setlocale() call to right before curses was used. This
didn’t fully solve the problem it was supposed to solve (locale-dependent
functions, like date formatting/parsing and str methods on Python 2), but only
postponed it.

Initializing LC_CTYPE seems to be sufficient for curses to work correctly.
Therefore LC_CTYPE is set while curses is used and reset afterwards. Some
locale-dependent str methods might behave differently on Python 2 while curses
is used, but that shouldn’d be a problem.

--- a/mercurial/crecord.py	Thu Jun 25 03:46:07 2020 +0200
+++ b/mercurial/crecord.py	Sun Jun 28 18:02:45 2020 +0200
@@ -10,7 +10,6 @@
 
 from __future__ import absolute_import
 
-import locale
 import os
 import re
 import signal
@@ -574,14 +573,12 @@
     """
     ui.write(_(b'starting interactive selection\n'))
     chunkselector = curseschunkselector(headerlist, ui, operation)
-    # This is required for ncurses to display non-ASCII characters in
-    # default user locale encoding correctly.  --immerrr
-    locale.setlocale(locale.LC_ALL, '')
     origsigtstp = sentinel = object()
     if util.safehasattr(signal, b'SIGTSTP'):
         origsigtstp = signal.getsignal(signal.SIGTSTP)
     try:
-        curses.wrapper(chunkselector.main)
+        with util.with_lc_ctype():
+            curses.wrapper(chunkselector.main)
         if chunkselector.initexc is not None:
             raise chunkselector.initexc
         # ncurses does not restore signal handler for SIGTSTP