From mboxrd@z Thu Jan  1 00:00:00 1970
From: iyzsong@member.fsf.org (=?utf-8?B?5a6L5paH5q2m?=)
Subject: Re: [WIP][PATCH] profiles: info-dir-file: Don't consider unwanted
	manifest entries
Date: Mon, 01 Jan 2018 18:37:47 +0800
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In-Reply-To: <87vah4wfkf.fsf@gnu.org> ("Ludovic
	\=\?utf-8\?Q\?Court\=C3\=A8s\=22'\?\=
	\=\?utf-8\?Q\?s\?\= message of "Mon, 18 Dec 2017 10:28:16 +0100")
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To: Ludovic =?utf-8?Q?Court=C3=A8s?= <ludo@gnu.org>
Cc: guix-devel@gnu.org

ludo@gnu.org (Ludovic Court=C3=A8s) writes:

> Hello!
>
> iyzsong@member.fsf.org (=E5=AE=8B=E6=96=87=E6=AD=A6) skribis:
>
>> Currently we run profile hooks for all manifest inputs, so if you
>> install a new package to your profile, all profile hooks will be run
>> again, even if the new package doesn't provide info manuals, man pages,
>> etc.  Ideally only interested hooks need to be run, eg: if the new
>> package has info manuals, then the 'info-dir-file' hook will run.
>>
>> I get it works somehow, but breaks the '--dry-run' functionality which I
>> have no idea how to preserve...
>
> Indeed.  I had the idea of adding a notion of =E2=80=9Cbuild rounds=E2=80=
=9D, which
> would also be useful for grafts: you=E2=80=99d register (client-side) an =
extra
> build round to be run after the current one.  For grafts, the first
> round would return the ungrafted derivations.  For profile hooks, the
> first round would return the profile without any hooks.  =E2=80=9C-n=E2=
=80=9D would
> display what would be built/downloaded as part of the first round,
> ignoring subsequent rounds.
>

Hello, happy new year!  So I have just disable profile hooks for the
'dry-run' now and send patches to guix-patches.