GNU bug report logs - #45327
[PATCH] git: Periodically delete least-recently-used cached checkouts.

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Message #17 received at 45327 <at> debbugs.gnu.org (full text, mbox):

From: zimoun <zimon.toutoune <at> gmail.com>
To: Ludovic Courtès <ludo <at> gnu.org>, 45327 <at> debbugs.gnu.org
Subject: Re: [bug#45327] [PATCH] git: Periodically delete
 least-recently-used cached checkouts.
Date: Mon, 21 Dec 2020 11:26:05 +0100

Hi Ludo,

On Sat, 19 Dec 2020 at 23:06, Ludovic Courtès <ludo <at> gnu.org> wrote:
> This ensures ~/.cache/guix/checkouts is periodically cleaned up.
>
> * guix/git.scm (cached-checkout-expiration)
> (%checkout-cache-cleanup-period): New variables.
> (delete-checkout): New procedure.
> (update-cached-checkout)[cache-entries]: New procedure.
> Add call to 'maybe-remove-expired-cache-entries'.
> ---
>  guix/git.scm | 38 +++++++++++++++++++++++++++++++++++++-
>  1 file changed, 37 insertions(+), 1 deletion(-)
>
> Hi!
>
> I noticed that my ~/.cache/guix/checkouts directory had accumulated
> a lot of cruft from channels, playing with ‘--with-branch’ and such,
> and that it would be nice to clean it up once in a while.
>
> This is what this patch does.  It uses the (guix cache) default
> strategy, which consists in deleting least-recently-used items by
> looking at their atime.

This is done at pull time, right?  Personally, I would prefer at gc
time, and even maybe with an option to “guix gc”.

Because, IIUC, every 5 days, the entries older than 1 month will be
deleted.  As an extensive user of the time-machine, it means that I will
do this extra work more than often, slowing down the already slow
“time-machine”.

Cheers,
simon

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