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From: Jeff King <peff@peff.net>
To: Duy Nguyen <pclouds@gmail.com>
Cc: David Turner <dturner@twopensource.com>,
	Git Mailing List <git@vger.kernel.org>,
	Michael Haggerty <mhagger@alum.mit.edu>
Subject: Re: [PATCH 13/16] init: allow alternate backends to be set for new repos
Date: Sat, 5 Dec 2015 02:44:44 -0500	[thread overview]
Message-ID: <20151205074444.GD21639@sigill.intra.peff.net> (raw)
In-Reply-To: <CACsJy8DDKW4np7N+KA=dpz9uNke0+cyQD-J3U74VM=4WbsjrKQ@mail.gmail.com>

On Sat, Dec 05, 2015 at 07:30:13AM +0100, Duy Nguyen wrote:

> On Thu, Dec 3, 2015 at 1:35 AM, David Turner <dturner@twopensource.com> wrote:
> > git init learns a new argument --refs-backend-type.  Presently, only
> > "files" is supported, but later we will add other backends.
> >
> > When this argument is used, the repository's core.refsBackendType
> > configuration value is set, and the refs backend's initdb function is
> > used to set up the ref database.
> 
> git-init can also be used on existing repos. What happens in that case
> if we use --refs-backend-type. Will existing  refs be migrated to the
> new backend or hidden away?

It would be neat if it migrated, but I suspect that may introduce
complications. It's probably OK in the initial implementation to bail if
the option is used in an existing repo.

I think the config option needs to be extensions.refsBackendType, too,
per the logic in 00a09d5 (introduce "extensions" form of
core.repositoryformatversion, 2015-06-23). And I guess it needs to bump
core.repositoryformatversion to "1".

-Peff

  reply	other threads:[~2015-12-05  7:45 UTC|newest]

Thread overview: 73+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-12-03  0:35 [PATCH 00/16] LMDB refs backend atop pre-vtable David Turner
2015-12-03  0:35 ` [PATCH 01/16] refs: add a backend method structure with transaction functions David Turner
2015-12-05  0:07   ` Junio C Hamano
2015-12-03  0:35 ` [PATCH 02/16] refs: add methods for misc ref operations David Turner
2015-12-11 23:33   ` Junio C Hamano
2015-12-11 23:49     ` David Turner
2015-12-11 23:39   ` Junio C Hamano
2015-12-11 23:49     ` David Turner
2015-12-12  0:23       ` Junio C Hamano
2015-12-12  0:48         ` David Turner
2015-12-18  4:06     ` Howard Chu
2015-12-03  0:35 ` [PATCH 03/16] refs: add methods for the ref iterators David Turner
2016-01-03  0:06   ` David Aguilar
2016-01-04 19:01     ` Junio C Hamano
2016-01-05 13:43       ` Michael Haggerty
2016-01-05 18:56         ` Junio C Hamano
2016-01-04 19:12     ` Ronnie Sahlberg
2016-01-04 20:26       ` Junio C Hamano
2016-01-05  1:17         ` Jeff King
2016-01-05  3:29           ` Junio C Hamano
2015-12-03  0:35 ` [PATCH 04/16] refs: add do_for_each_per_worktree_ref David Turner
2015-12-11 23:52   ` Junio C Hamano
2015-12-12  0:01     ` David Turner
2015-12-03  0:35 ` [PATCH 05/16] refs: add methods for reflog David Turner
2015-12-03  0:35 ` [PATCH 06/16] refs: add method for initial ref transaction commit David Turner
2015-12-03  0:35 ` [PATCH 07/16] refs: add method for delete_refs David Turner
2015-12-03  0:35 ` [PATCH 08/16] refs: add methods to init refs backend and db David Turner
2015-12-23  5:33   ` Michael Haggerty
2015-12-23  6:54     ` David Turner
2015-12-03  0:35 ` [PATCH 09/16] refs: add method to rename refs David Turner
2015-12-03  0:35 ` [PATCH 10/16] refs: make lock generic David Turner
2015-12-03  0:35 ` [PATCH 11/16] refs: move duplicate check to common code David Turner
2015-12-23  6:27   ` Michael Haggerty
2016-01-05 16:42     ` David Turner
2015-12-03  0:35 ` [PATCH 12/16] refs: always handle non-normal refs in files backend David Turner
2015-12-23  8:02   ` Michael Haggerty
2016-01-06  0:13     ` David Turner
2016-01-06 23:41     ` [PATCH/RFC v2 1/3] refs: allow log-only updates David Turner
2016-01-06 23:41       ` [PATCH/RFC v2 2/3] refs: resolve symbolic refs first David Turner
2016-01-06 23:41       ` [PATCH/RFC v2 3/3] refs: always handle non-normal refs in files backend David Turner
2016-01-08 12:52         ` David Turner
2016-01-06 23:42     ` [PATCH 12/16] " David Turner
2015-12-03  0:35 ` [PATCH 13/16] init: allow alternate backends to be set for new repos David Turner
2015-12-05  0:07   ` Junio C Hamano
2015-12-05  6:30   ` Duy Nguyen
2015-12-05  7:44     ` Jeff King [this message]
2015-12-08  0:38       ` David Turner
2015-12-23  9:52       ` Michael Haggerty
2015-12-23 20:01         ` Jeff King
2015-12-10 18:02   ` Jeff King
2015-12-10 19:36     ` David Turner
2015-12-23 11:30   ` [PATCH] clone: use child_process for recursive checkouts Michael Haggerty
2016-01-06 23:41     ` David Turner
2015-12-23 13:34   ` [PATCH 13/16] init: allow alternate backends to be set for new repos Michael Haggerty
2016-01-05 17:26     ` David Turner
2016-01-05 18:03       ` Junio C Hamano
2016-01-05 18:24         ` David Turner
2016-01-06 12:02         ` Michael Haggerty
2016-01-06 12:52     ` Duy Nguyen
2016-01-07  3:31       ` Shawn Pearce
2015-12-03  0:35 ` [PATCH 14/16] refs: allow ref backend to be set for clone David Turner
2015-12-23 13:51   ` Michael Haggerty
2015-12-23 20:23     ` Eric Sunshine
2015-12-03  0:35 ` [PATCH 15/16] refs: add LMDB refs backend David Turner
2015-12-05  0:08   ` Junio C Hamano
2015-12-05  0:25     ` David Turner
2015-12-17  1:00   ` Jonathan Nieder
2015-12-17  2:31     ` David Turner
2015-12-17 20:49       ` Jonathan Nieder
2015-12-23 14:32   ` Michael Haggerty
2016-01-08 16:05     ` David Turner
2015-12-03  0:35 ` [PATCH 16/16] refs: tests for lmdb backend David Turner
2015-12-22 23:56 ` [PATCH 00/16] LMDB refs backend atop pre-vtable David Turner

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