Re: [PATCH v4] config: add conditional include

[Duy Nguyen <pclouds@gmail.com>]

On Mon, Aug 22, 2016 at 8:22 PM, Matthieu Moy
<Matthieu.Moy@grenoble-inp.fr> wrote:
>>> I think the syntax should be design to allow arbitrary boolean
>>> expression later if needed.
>>
>> I would be against that. We may extend it more in future, but it
>> should be under control, not full boolean expressions.
>
> Why?
>
> I'm not saying we absolutely need it, but if we allow several kinds of
> conditions (gitdir-is:... and others in the future), then it's natural
> to allow combining them, and arbitrary boolean expression is both simple
> and powerful (operators and/or/not and parenthesis and you have
> everything you'll ever need).

For starter, we don't want another debate "python vs ruby vs lua vs
..." as the scripting language :) (for the record I vote Scheme! maybe
with infix syntax)

Seriously though, for things that are evaluated in the background
every single time a command is executed and things that come from many
different places (/etc, $HOME, $XDG, $GIT_DIR) I think absolute
flexibility just makes it harder to pinpoint when things go wrong.
Combination in this case would be a bad thing, not a good one. By
judging case by case before introducing a new condition type, we
probably can see what sort of combination would be and whether we
could accept that.
-- 
Duy