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From: Patrick Steinhardt <ps@pks.im>
To: Karthik Nayak <karthik.188@gmail.com>
Cc: git@vger.kernel.org
Subject: Re: [PATCH 03/12] refs: refactor logic to look up storage backends
Date: Thu, 28 Dec 2023 09:56:09 +0100	[thread overview]
Message-ID: <ZY04KePUMJEv_QQM@tanuki> (raw)
In-Reply-To: <CAOLa=ZR1Bc+Acwjma9OM0SvyLg4-HB-S3Pxr66VCKTb0d_tdnw@mail.gmail.com>

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On Fri, Dec 22, 2023 at 04:38:30AM -0800, Karthik Nayak wrote:
> Patrick Steinhardt <ps@pks.im> writes:
> 
> > +
> > +const char *ref_storage_format_to_name(int ref_storage_format)
> > +{
> > +	const struct ref_storage_be *be = find_ref_storage_backend(ref_storage_format);
> > +	if (!be)
> > +		return "unknown";
> > +	return be->name;
> > +}
> >
> 
> Would it make more sense to return NULL here?

The only purpose of this function will be to print error messages, so
"unknown" seems like the better choice.

> >  /*
> >   * How to handle various characters in refnames:
> >   * 0: An acceptable character for refs
> > @@ -2029,12 +2045,12 @@ static struct ref_store *ref_store_init(struct repository *repo,
> >  					const char *gitdir,
> >  					unsigned int flags)
> >  {
> > -	const char *be_name = "files";
> > -	struct ref_storage_be *be = find_ref_storage_backend(be_name);
> > +	int format = REF_STORAGE_FORMAT_FILES;
> > +	const struct ref_storage_be *be = find_ref_storage_backend(format);
> >  	struct ref_store *refs;
> >
> >  	if (!be)
> > -		BUG("reference backend %s is unknown", be_name);
> > +		BUG("reference backend %s is unknown", ref_storage_format_to_name(format));
> >
> 
> This doesn't really get us more information, since be == NULL, calling
> `ref_storage_format_to_name` will again call `find_ref_storage_backend`,
> which will be NULL. I wonder if its better to:
> 
> @@ -2029,12 +2045,12 @@ static struct ref_store *ref_store_init(struct
> repository *repo,
>                      const char *gitdir,
>                      unsigned int flags)
>   {
>  -	const char *be_name = "files";
>  -	struct ref_storage_be *be = find_ref_storage_backend(be_name);
>  +	int format = REF_STORAGE_FORMAT_FILES;
>  +	const struct ref_storage_be *be = find_ref_storage_backend(format);
>      struct ref_store *refs;
> 
>      if (!be)
>  -		BUG("reference backend %s is unknown", be_name);
>  +		BUG("reference backend is unknown");

Good point, will change.

Patrick

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  reply	other threads:[~2023-12-28  8:56 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-20 10:54 [PATCH 00/12] Introduce `refStorage` extension Patrick Steinhardt
2023-12-20 10:54 ` [PATCH 01/12] t: introduce DEFAULT_REPO_FORMAT prereq Patrick Steinhardt
2023-12-22 11:41   ` Karthik Nayak
2023-12-28  8:55     ` Patrick Steinhardt
2023-12-20 10:54 ` [PATCH 02/12] worktree: skip reading HEAD when repairing worktrees Patrick Steinhardt
2023-12-22 12:23   ` Karthik Nayak
2023-12-20 10:55 ` [PATCH 03/12] refs: refactor logic to look up storage backends Patrick Steinhardt
2023-12-22 12:38   ` Karthik Nayak
2023-12-28  8:56     ` Patrick Steinhardt [this message]
2023-12-20 10:55 ` [PATCH 04/12] setup: start tracking ref storage format when Patrick Steinhardt
2023-12-20 18:30   ` Junio C Hamano
2023-12-28  8:56     ` Patrick Steinhardt
2023-12-28 17:15       ` Junio C Hamano
2023-12-28 20:01         ` Patrick Steinhardt
2023-12-22 13:09   ` Karthik Nayak
2023-12-28  8:56     ` Patrick Steinhardt
2023-12-20 10:55 ` [PATCH 05/12] setup: set repository's formats on init Patrick Steinhardt
2023-12-20 10:55 ` [PATCH 06/12] setup: introduce "extensions.refStorage" extension Patrick Steinhardt
2023-12-20 10:55 ` [PATCH 07/12] setup: introduce GIT_DEFAULT_REF_FORMAT envvar Patrick Steinhardt
2023-12-20 10:55 ` [PATCH 08/12] t: introduce GIT_TEST_DEFAULT_REF_FORMAT envvar Patrick Steinhardt
2023-12-20 10:55 ` [PATCH 09/12] builtin/rev-parse: introduce `--show-ref-format` flag Patrick Steinhardt
2023-12-20 10:55 ` [PATCH 10/12] builtin/init: introduce `--ref-format=` value flag Patrick Steinhardt
2023-12-20 10:55 ` [PATCH 11/12] builtin/clone: " Patrick Steinhardt
2023-12-20 10:55 ` [PATCH 12/12] t9500: write "extensions.refstorage" into config Patrick Steinhardt
2023-12-22 13:43   ` Karthik Nayak
2023-12-22 13:43 ` [PATCH 00/12] Introduce `refStorage` extension Karthik Nayak
2023-12-26 20:56   ` Junio C Hamano
2023-12-28  9:57 ` [PATCH v2 " Patrick Steinhardt
2023-12-28  9:57   ` [PATCH v2 01/12] t: introduce DEFAULT_REPO_FORMAT prereq Patrick Steinhardt
2023-12-28  9:57   ` [PATCH v2 02/12] worktree: skip reading HEAD when repairing worktrees Patrick Steinhardt
2023-12-28 18:08     ` Eric Sunshine
2023-12-28 18:13       ` Eric Sunshine
2023-12-28 20:18         ` Patrick Steinhardt
2023-12-28  9:57   ` [PATCH v2 03/12] refs: refactor logic to look up storage backends Patrick Steinhardt
2023-12-28 17:25     ` Junio C Hamano
2023-12-28 20:11       ` Patrick Steinhardt
2023-12-28 20:42         ` Junio C Hamano
2023-12-28  9:57   ` [PATCH v2 04/12] setup: start tracking ref storage format Patrick Steinhardt
2023-12-28  9:57   ` [PATCH v2 05/12] setup: set repository's formats on init Patrick Steinhardt
2023-12-28  9:57   ` [PATCH v2 06/12] setup: introduce "extensions.refStorage" extension Patrick Steinhardt
2023-12-28  9:57   ` [PATCH v2 07/12] setup: introduce GIT_DEFAULT_REF_FORMAT envvar Patrick Steinhardt
2023-12-28  9:57   ` [PATCH v2 08/12] t: introduce GIT_TEST_DEFAULT_REF_FORMAT envvar Patrick Steinhardt
2023-12-28  9:58   ` [PATCH v2 09/12] builtin/rev-parse: introduce `--show-ref-format` flag Patrick Steinhardt
2023-12-28  9:58   ` [PATCH v2 10/12] builtin/init: introduce `--ref-format=` value flag Patrick Steinhardt
2023-12-28  9:58   ` [PATCH v2 11/12] builtin/clone: " Patrick Steinhardt
2023-12-28  9:58   ` [PATCH v2 12/12] t9500: write "extensions.refstorage" into config Patrick Steinhardt
2023-12-29  7:26 ` [PATCH v3 00/12] Introduce `refStorage` extension Patrick Steinhardt
2023-12-29  7:26   ` [PATCH v3 01/12] t: introduce DEFAULT_REPO_FORMAT prereq Patrick Steinhardt
2023-12-29  7:26   ` [PATCH v3 02/12] worktree: skip reading HEAD when repairing worktrees Patrick Steinhardt
2023-12-29  7:26   ` [PATCH v3 03/12] refs: refactor logic to look up storage backends Patrick Steinhardt
2023-12-29  7:26   ` [PATCH v3 04/12] setup: start tracking ref storage format Patrick Steinhardt
2023-12-29  7:26   ` [PATCH v3 05/12] setup: set repository's formats on init Patrick Steinhardt
2023-12-29  7:26   ` [PATCH v3 06/12] setup: introduce "extensions.refStorage" extension Patrick Steinhardt
2023-12-29  7:26   ` [PATCH v3 07/12] setup: introduce GIT_DEFAULT_REF_FORMAT envvar Patrick Steinhardt
2023-12-29  7:26   ` [PATCH v3 08/12] t: introduce GIT_TEST_DEFAULT_REF_FORMAT envvar Patrick Steinhardt
2023-12-29  7:27   ` [PATCH v3 09/12] builtin/rev-parse: introduce `--show-ref-format` flag Patrick Steinhardt
2023-12-29  7:27   ` [PATCH v3 10/12] builtin/init: introduce `--ref-format=` value flag Patrick Steinhardt
2023-12-29  7:27   ` [PATCH v3 11/12] builtin/clone: " Patrick Steinhardt
2023-12-29  7:27   ` [PATCH v3 12/12] t9500: write "extensions.refstorage" into config Patrick Steinhardt
2023-12-29  8:44   ` [PATCH v3 00/12] Introduce `refStorage` extension Eric Sunshine

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