From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dika Setya Prayogi <dikasetyaprayogi@gmail.com>
Subject: Re: a bit curiousity
Date: Wed, 23 Dec 2015 14:59:08 +0700
Message-ID: <CAKpbLoY_EXPE1gX_+NWQbs5zVNDt0xKz1ZkUaRHKTfLZ8-tc6g@mail.gmail.com>
References: <CAKpbLobhisF2+Q+L0dBjLGB62aejtm9jm8Ygh4HBbFXEc3acNA@mail.gmail.com>
	<87y4cm7bgy.fsf@elephly.net> <87mvt2bf0b.fsf@gnu.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
Return-path: <guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:43570)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <dikasetyaprayogi@gmail.com>) id 1aBeKE-0006d4-Bu
	for guix-devel@gnu.org; Wed, 23 Dec 2015 02:59:11 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <dikasetyaprayogi@gmail.com>) id 1aBeKD-0001Xk-91
	for guix-devel@gnu.org; Wed, 23 Dec 2015 02:59:10 -0500
In-Reply-To: <87mvt2bf0b.fsf@gnu.org>
List-Id: "Development of GNU Guix and the GNU System distribution."
	<guix-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/guix-devel>,
	<mailto:guix-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/guix-devel>
List-Post: <mailto:guix-devel@gnu.org>
List-Help: <mailto:guix-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/guix-devel>,
	<mailto:guix-devel-request@gnu.org?subject=subscribe>
Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org
Sender: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org
To: =?UTF-8?Q?Ludovic_Court=C3=A8s?= <ludo@gnu.org>
Cc: guix-devel@gnu.org

many thanks for the info :-)

2015-12-22 23:54 GMT+07.00, Ludovic Court=C3=A8s <ludo@gnu.org>:
> Ricardo Wurmus <rekado@elephly.net> skribis:
>
>> Dika Setya Prayogi <dikasetyaprayogi@gmail.com> writes:
>
> [...]
>
>>> 2.set auto garbage collect for package old than one month
>>
>> Garbage collection is not about age but about references.  If a package
>> is referenced in a profile (even if it=E2=80=99s not the latest generati=
on of
>> the profile) it won=E2=80=99t be collected.  This is a feature.
>>
>> To achieve garbage collection of old packages you would have to remove
>> all old profile generations (so that older packages are no longer
>> referenced), and also make sure that no =E2=80=9Cold=E2=80=9D packages a=
re referenced in
>> the current profile generation.  This essentially requires a forced
>> upgrade with deletion of older profile generations, which seems quite
>> unwise.  You=E2=80=99d throw away some of the best features of Guix, in =
my
>> opinion.
>
> One could have a periodic job that runs:
>
>   guix package --delete-generations=3D1m && guix gc
>
> This removes generations older than 1 month and then runs the GC.
>
> Depending on your use case, this may or may not be a good idea.  I
> personally prefer to remove generations once I know I=E2=80=99m very unli=
kely to
> ever need to roll back to them.
>
> Ludo=E2=80=99.
>