Re: [PATCH] Improve portability of pgweb/load_initial_data.sh - Mailing list pgsql-www

From Magnus Hagander
Subject Re: [PATCH] Improve portability of pgweb/load_initial_data.sh
Date
Msg-id CABUevEyR-jfGWquPTCNpBiw+O_tmHT1xi+9HbYJuXFqjwzu_dQ@mail.gmail.com
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In response to Re: [PATCH] Improve portability of pgweb/load_initial_data.sh  (Nils Andre <nils@nilsand.re>)
List pgsql-www
On Tue, Nov 9, 2021 at 11:57 PM Nils Andre <nils@nilsand.re> wrote:
Hi,

On Mon, Nov 08, 2021 at 10:03:50AM +0100, Magnus Hagander wrote:
> Yeah, I think the fact that it says bash is just a "knee-jerk default" and
> not that it ever did either. So I have no problem changing that to sh. I'm
> a bit curious though, as to in which scenario this actually causes a
> problem?

This causes problems on [NixOS][1] which only has `/bin/sh` and
`/usr/bin/env` in the location one would "expect" them.

Hmm. Interesting. Anyway, this part seems perfectly fine to fix. 


> The second change I'm less sure about. There are many different things you
> could change to break a script. This is one of them. You could change PATH,
> or you could replace "find" or "xargs" with commands that don't work the
> same way. CDPATH is not a variable that should, I believe, ever be exported
> into non-interactive scripts in the first place.

I didn't realise I was exporting CDPATH, which is ~~probably~~ a mistake
(and would have prevented previous painful and long headaches).

I'm pretty sure that one will break a lot of other things... 


For what it's worth, I use a program I have written that makes use of
CDPATH (and hence requires it to be exported (but I think I will
reconsider the program's usage of CDPATH)).

I would recommend that :)


However I do understand this is an issue with my particular setup.

Attached, is the patch amended without the CDPATH change.


Thanks, applied as such!

//Magnus
 

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