From: Felipe Contreras <felipe.contreras@gmail.com>
Date: Thu, 01 Jul 2021 03:19:07 GMT
Subject: Re: [PATCH] Makefile: add and use the ".DELETE_ON_ERROR" flag
Message-ID: <60dd342b92b8b_174a22083a@natae.notmuch>
In-Reply-To: <8735t1gk0d.fsf@evledraar.gmail.com>

Ævar Arnfjörð Bjarmason wrote:
> On Wed, Jun 23 2021, Felipe Contreras wrote:

> >> > What about these?
> >> >
> >> >   $(REMOTE_CURL_ALIASES):
> >> 
> >> Uses a chain of ln/ln -s/cp, would need to add "-f" flags.
> >
> > Why? Isn't "x && a || b || c" the same as "a || b || c" if x is always true?
> 
> It does:
> 
>     rm x &&
>     ln y x || ln -s y x || cp y x
> 
> If you run that you'll get a hardlink the first time around, but the
> second time around you'll fall back to the "cp" if you remove the "rm".

Right. We'll need to do ln -f, and god knows if that's portable.

-- 
Felipe Contreras