From mboxrd@z Thu Jan  1 00:00:00 1970
From: Duy Nguyen <pclouds@gmail.com>
Subject: Re: gc/repack has no option to lose grafted parents
Date: Fri, 7 Mar 2014 07:47:29 +0700
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Cc: Junio C Hamano <gitster@pobox.com>,
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On Fri, Mar 7, 2014 at 6:36 AM, Martin Langhoff
<martin.langhoff@gmail.com> wrote:
> On Thu, Mar 6, 2014 at 6:26 PM, Junio C Hamano <gitster@pobox.com> wrote:
>> Given that we in general frown upon long-term use of grafts (or
>> "replace" for that matter), I am not sure if we want to go in that
>> direction.
>>
>> Just a knee-jerk reaction, though.
>
> Fair enough.
>
> If I state my actual goals -- discarding old, uninteresting history,
> in a "rolling" fashion? (periodically using a script that says "forget
> anything older than one month") -- is there a better way?

Convert it to a shallow repository? Either you clone it and do "fetch
--depth=XXX && prune", or you manipulate $GIT_DIR/shallow directly
then prune (no worse than editing grafts, I think).
-- 
Duy