f415e21a7d
Upsteam commit:
Date: Mon, 17 May 2021 15:19:23 +0800
eval: Do not cache value of eflag in evaltree
Patrick Brünn <P.Bruenn@beckhoff.com> wrote:
> Since we are migrating to Debian bullseye, we discovered a new behavior
> with our scripts, which look like this:
>>cleanup() {
>> set +e
>> rmdir ""
>>}
>>set -eu
>>trap 'cleanup' EXIT INT TERM
>>echo 'Hello world!'
>
> With old dash v0.5.10.2 this script would return 0 as we expected it.
> But since commit 62cf6955f8abe875752d7163f6f3adbc7e49ebae it returns
> the last exit code of our cleanup function.
...
Thanks for the report. This is actually a fairly old bug with
set -e that's just been exposed by the exit status change. What's
really happening is that cleanup itself is triggering a set -e
exit incorrectly because evaltree cached the value of eflag prior
to the function call.
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
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3 lines
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