From: Lars Schneider <larsxschneider@gmail.com>
To: "Ævar Arnfjörð Bjarmason" <avarab@gmail.com>
Cc: git <git@vger.kernel.org>, Jeff King <peff@peff.net>,
Duy Nguyen <pclouds@gmail.com>
Subject: Re: worktrees vs. alternates
Date: Wed, 16 May 2018 11:51:26 +0200 [thread overview]
Message-ID: <81B00B00-00F4-487A-9D3E-6B7514098B29@gmail.com> (raw)
In-Reply-To: <87po1waqyc.fsf@evledraar.gmail.com>
> On 16 May 2018, at 11:29, Ævar Arnfjörð Bjarmason <avarab@gmail.com> wrote:
>
>
> On Wed, May 16 2018, Lars Schneider wrote:
>
>> I am looking into different options to cache Git repositories on build
>> machines. The two most promising ways seem to be git-worktree [1] and
>> git-alternates [2].
>>
>> I wonder if you see an advantage of one over the other?
>>
>> My impression is that git-worktree supersedes git-alternates. Would
>> that be a fair statement? If yes, would it makes sense to deprecate
>> alternates for simplification?
>>
>> [1] https://git-scm.com/docs/git-worktree
>> [2] https://git-scm.com/docs/gitrepository-layout#gitrepository-layout-objectsinfoalternates
>
> It's not correct that worktrees supersede alternates, or the other way
> around, they're orthagonal features.
>
> git-worktree allows you to create a new working directory connected to
> the same local object store.
>
> Alternates allow you to declare in any given local object store, that
> your set of objects isn't complete, and you can find the rest at some
> other location, those object stores may or may not have more than one
> worktree connected to them.
OK. I just wonder in what situation I would work with an incomplete
object store. The only use case I could imagine is that two repos share
a common set of objects (most likely blobs). However, in that situation
I would keep the two independent lines of development in a single repo
with two root commits.
Would it be fair to say that "git alternates" are a good mechanism to
cache objects across different repos? However, I would consider a cache
hit between different repos unlikely. In that line of thinking
"git worktree" would be a good (maybe better?) mechanism to cache objects
for a single repo?
Thanks,
Lars
next prev parent reply other threads:[~2018-05-16 9:51 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-16 8:13 worktrees vs. alternates Lars Schneider
2018-05-16 9:29 ` Ævar Arnfjörð Bjarmason
2018-05-16 9:42 ` Robert P. J. Day
2018-05-16 11:07 ` Ævar Arnfjörð Bjarmason
2018-05-16 9:51 ` Lars Schneider [this message]
2018-05-16 10:33 ` Ævar Arnfjörð Bjarmason
2018-05-16 13:02 ` Derrick Stolee
2018-05-16 14:58 ` Konstantin Ryabitsev
2018-05-16 15:34 ` Ævar Arnfjörð Bjarmason
2018-05-16 15:49 ` Konstantin Ryabitsev
2018-05-16 17:54 ` Ævar Arnfjörð Bjarmason
2018-05-16 17:14 ` Martin Fick
2018-05-16 17:41 ` Konstantin Ryabitsev
2018-05-16 18:02 ` Ævar Arnfjörð Bjarmason
2018-05-16 18:12 ` Konstantin Ryabitsev
2018-05-16 18:26 ` Martin Fick
2018-05-16 19:01 ` Konstantin Ryabitsev
2018-05-16 19:03 ` Martin Fick
2018-05-16 19:11 ` Konstantin Ryabitsev
2018-05-16 19:18 ` Martin Fick
2018-05-16 19:23 ` Jeff King
2018-05-16 19:29 ` Konstantin Ryabitsev
2018-05-16 19:37 ` Jeff King
2018-05-16 19:40 ` Martin Fick
2018-05-16 20:06 ` Jeff King
2018-05-16 20:43 ` Martin Fick
2018-05-16 20:02 ` Konstantin Ryabitsev
2018-05-16 20:17 ` Jeff King
2018-05-17 0:43 ` Sitaram Chamarty
2018-05-17 3:31 ` Jeff King
2018-05-19 5:45 ` Duy Nguyen
2018-05-16 19:14 ` Jeff King
2018-05-16 21:18 ` Stefan Beller
2018-05-16 23:45 ` Jeff King
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