test: fix for COLUMNS and bash 5

Since c49a177bec (test-lib.sh: set COLUMNS=80 for --verbose
repeatability, 2021-06-29) multiple tests have been failing when using
bash 5 because checkwinsize is enabled by default, therefore COLUMNS is
reset using TIOCGWINSZ even for non-interactive shells.

It's debatable whether or not bash should even be doing that, but for
now we can avoid this undesirable behavior by disabling this option.

Reported-by: Fabian Stelzer <fabian.stelzer@campoint.net>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
[jc: with SZEDER Gábor's suggestion to do this before setting COLUMNS]
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Felipe Contreras 2021-08-05 14:48:25 -05:00 committed by Junio C Hamano
parent c49a177bec
commit 390b44eb2b

View file

@ -395,6 +395,12 @@ then
verbose=t
fi
# Since bash 5.0, checkwinsize is enabled by default which does
# update the COLUMNS variable every time a non-builtin command
# completes, even for non-interactive shells.
# Disable that since we are aiming for repeatability.
test -n "$BASH_VERSION" && shopt -u checkwinsize 2>/dev/null
# For repeatability, reset the environment to known value.
# TERM is sanitized below, after saving color control sequences.
LANG=C