From: Stefan Beller <sbeller@google.com>
To: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Cc: git <git@vger.kernel.org>,
git-users@googlegroups.com,
Christian Couder <christian.couder@gmail.com>
Subject: Re: How de-duplicate similar repositories with alternates
Date: Thu, 29 Nov 2018 10:55:49 -0800 [thread overview]
Message-ID: <CAGZ79ka1sjU+rHctRP4SVMP0GQsK2iZghkU46=f96ugqvX5Neg@mail.gmail.com> (raw)
In-Reply-To: <87zhtsx73l.fsf@evledraar.gmail.com>
On Thu, Nov 29, 2018 at 7:00 AM Ævar Arnfjörð Bjarmason
<avarab@gmail.com> wrote:
>
> A co-worker asked me today how space could be saved when you have
> multiple checkouts of the same repository (at different revs) on the
> same machine. I said since these won't block-level de-duplicate well[1]
> one way to do this is with alternates.
Another way is to use git-worktree, which would solve the gc issues
mentioned below?
I view alternates as a historic artefact as the deduping
of objects client side can be done using worktrees, and on the
serverside - I think - most of the git hosters use namespaces
and put a fork network into the same repository and use pack islands.
Can you elaborate on why worktrees would not solve the problem?
(I initially was hesitant to use them as I liked going into .git and tempering
with files such as the config directly. But now I cannot `cd .git` any more;
it turns out the advantages outweigh this corner case that I was attached to)
next prev parent reply other threads:[~2018-11-29 18:56 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-29 14:59 How de-duplicate similar repositories with alternates Ævar Arnfjörð Bjarmason
2018-11-29 16:09 ` Ævar Arnfjörð Bjarmason
2018-11-29 18:55 ` Stefan Beller [this message]
2018-11-29 20:10 ` Ævar Arnfjörð Bjarmason
2018-11-29 20:43 ` Duy Nguyen
2018-12-04 7:06 ` Jeff King
2018-12-04 12:07 ` Derrick Stolee
2018-12-04 6:59 ` Jeff King
2018-12-04 10:43 ` Ævar Arnfjörð Bjarmason
2018-12-04 13:27 ` [PATCH 0/3] sha1-file: warn if alternate is a git repo (not object dir) Ævar Arnfjörð Bjarmason
2018-12-04 13:27 ` [PATCH 1/3] sha1-file: test the error behavior of alt_odb_usable() Ævar Arnfjörð Bjarmason
2019-03-28 20:04 ` [PATCH v2] " Ævar Arnfjörð Bjarmason
2019-03-29 13:46 ` Jeff King
2019-03-29 13:55 ` Ævar Arnfjörð Bjarmason
2019-04-08 15:57 ` Ævar Arnfjörð Bjarmason
2019-04-09 8:21 ` Junio C Hamano
2019-04-09 8:45 ` Ævar Arnfjörð Bjarmason
2019-04-09 9:43 ` Junio C Hamano
2019-04-09 14:14 ` Jeff King
2019-04-09 8:29 ` Junio C Hamano
2018-12-04 13:27 ` [PATCH 2/3] sha1-file: emit error if an alternate looks like a repository Ævar Arnfjörð Bjarmason
2018-12-05 3:35 ` Junio C Hamano
2018-12-05 6:10 ` Jeff King
2018-12-04 13:27 ` [PATCH 3/3] sha1-file: change alternate "error:" message to "warning:" Ævar Arnfjörð Bjarmason
2018-12-05 3:37 ` Junio C Hamano
2018-12-05 5:54 ` Jeff King
2018-12-05 3:30 ` How de-duplicate similar repositories with alternates Junio C Hamano
2018-12-04 13:35 ` Ævar Arnfjörð Bjarmason
2018-12-04 14:17 ` Derrick Stolee
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