Felipe Contreras <felipe.contreras@xxxxxxxxx> 于2021年8月7日周六 上午12:44写道： > > 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@xxxxxxxxxxxx> > Signed-off-by: Felipe Contreras <felipe.contreras@xxxxxxxxx> > --- > > Since v1 moved the code before setting COLUMNS as SZEDER Gábor suggested > and mention checkwinsize could be set before bash 5 as Ævar Arnfjörð > Bjarmason mentioned. > > Range-diff against v1: > 1: 40273074de < -: ---------- test: fix for COLUMNS and bash 5 > -: ---------- > 1: 9f8c3ffa6a test: fix for COLUMNS and bash 5 > > t/test-lib.sh | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/t/test-lib.sh b/t/test-lib.sh > index db61081d6b..6b1015a5af 100644 > --- a/t/test-lib.sh > +++ b/t/test-lib.sh > @@ -409,6 +409,12 @@ then > verbose=t > fi > > +# In bash if checkwinsize is enabled the COLUMNS variable is updated every time > +# an external command completes, even for non-interactive shells. Since bash 5.0 > +# this is enabled by default. > +# Disable that since we are aiming for reproducibility. > +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 > -- > 2.32.0.40.gb9b36f9b52 > This can work on Arch-Linux. LGTM. Thanks. -- ZheNing Hu
