Re: [PATCH 4/8] doc: simplify the handling of interruptions

From: Junio C Hamano <gitster@pobox.com>
Date: May 13, 2021, 05:19 UTC
Message-ID: <xmqqmtszb47p.fsf@gitster.g>
In-Reply-To: <20210512222803.508446-5-felipe.contreras@gmail.com>

Felipe Contreras <felipe.contreras@gmail.com> writes:

> +"${args[@]}" -o "$out" "$1" ||
> +{ rm -f "$out"; false; }

It would be so nice if this worked, but here is what I saw in a quick-and-dirty experiment:

    $ f () { echo foo >"$1" && sleep 20 && echo bar >>"$1"; }
    $ f hoi ;# wait sufficiently long
    $ cat hoi
    foo
    bar
    $ f hoi ;# wait a bit and hit ^C
    ^C
    $ cat hoi
    foo
    $ rm hoi
    $ f hoi || rm hoi ;# wait a bit and hit ^C
    ^C
    $ cat hoi
    foo

So, I suspect it unfortunately may not work well.

We need to get 2/8 redone without bash-ism, but it would not affect the correctness of this step, I would think, whether this is done in bash or implemented in a plain vanilla POSIX shell.

Thanks.