Re: git repack -A -d doesn't remove objects found in alternates?

From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Sep 17, 2021, 10:28 UTC
Message-ID: <20210917102849.h7vru7j7dseoilps@pengutronix.de>
In-Reply-To: <CAGyf7-E7PcRGiEd_U5bcw1na7H0LGDMw81s4SUDE=DH+4G3QYA@mail.gmail.com>

On Fri, Sep 17, 2021 at 02:08:58AM -0700, Bryan Turner wrote:

Show 31 quoted lines

> On Fri, Sep 17, 2021 at 1:56 AM Uwe Kleine-König
> <u.kleine-koenig@pengutronix.de> wrote:
> >
> > Hello,
> >
> > I wonder if I do something wrong, or if I just don't understand
> > something:
> >
> >         ukl@dude04:~/work$ git version
> >         git version 2.30.2
> >
> >         ukl@dude04:~/work$ git clone https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> >         ...
> >         ukl@dude04:~/work$ cd linux/
> >         ukl@dude04:~/work/linux$ du -sh .git/objects
> >         2.6G    .git/objects
> >         ukl@dude04:~/work/linux$ echo "/ptx/work/user/git/linux.git/objects" > .git/objects/info/alternates
> >
> >         ukl@dude04:~/work/linux$ git repack -A -d
> >         ...
> >         ukl@dude04:~/work/linux$ du -sh .git/objects/
> >         2.6G    .git/objects/
> >
> > I would have expected a drastic size decrease from git repack after the
> > alternate is added.
> 
> You're missing -l on your repack command. See git help pack-objects
> and look for --local. Without -l, repack includes copies of the
> objects you're borrowing, so your pack size doesn't change.
> 
> Hope this helps!

It does. When adding -l the size reported by du goes down to 8K. Thanks a lot.

While refering to other manpages is easy to maintain, it's hard to read for a user.

Best regards Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |