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From: Duy Nguyen <pclouds@gmail.com>
To: Denton Liu <liu.denton@gmail.com>
Cc: Git Mailing List <git@vger.kernel.org>,
	Ævar Arnfjörð Bjarmason <avarab@gmail.com>,
	Junio C Hamano <gitster@pobox.com>,
	Johannes Schindelin <Johannes.Schindelin@gmx.de>
Subject: Re: [PATCH v2] config: learn the "onbranch:" includeIf condition
Date: Wed, 5 Jun 2019 17:08:04 +0700
Message-ID: <CACsJy8BaYhcnj_nofxmDB3txBCgSe0aDeR+LYPNqkHYg4OroHg@mail.gmail.com> (raw)
In-Reply-To: <3573995264441c50ea9529b3ee926d1ed3ec4ac8.1559330905.git.liu.denton@gmail.com>

On Sat, Jun 1, 2019 at 2:34 AM Denton Liu <liu.denton@gmail.com> wrote:
>
> Currently, if a user wishes to have individual settings per branch, they
> are required to manually keep track of the settings in their head and
> manually set the options on the command-line or change the config at
> each branch.
>
> Teach config the "onbranch:" includeIf condition so that it can
> conditionally include configuration files if the branch that is checked
> out in the current worktree matches the pattern given.

Just wondering, anybody wants special settings on detached head (and
if so, what syntax should it be)?

> diff --git a/Documentation/config.txt b/Documentation/config.txt
> index 7e2a6f61f5..93aa4323c6 100644
> --- a/Documentation/config.txt
> +++ b/Documentation/config.txt
> @@ -144,6 +144,13 @@ refer to linkgit:gitignore[5] for details. For convenience:
>         This is the same as `gitdir` except that matching is done
>         case-insensitively (e.g. on case-insensitive file sytems)
>
> +`onbranch`::
> +       The data that follows the keyword `onbranch:` is taken to be a pattern
> +       with standard globbing wildcards and two additional ones, `**/` and
> +       `/**`, that can match multiple path components. If we are in a worktree
> +       where the name of the branch that is currently checked out matches the
> +       pattern, the include condition is met.

Supporting transforming "foo/" to "foo/**" would be nice (gitdir and
gitdir/i do this). Useful when you organize your branches into
"subdirs".

> @@ -264,6 +265,24 @@ static int include_by_gitdir(const struct config_options *opts,
>         return ret;
>  }
>
> +static int include_by_branch(const char *cond, size_t cond_len)
> +{
> +       int flags;
> +       int ret;
> +       struct strbuf pattern = STRBUF_INIT;
> +       const char *refname = resolve_ref_unsafe("HEAD", 0, NULL, &flags);
> +       const char *shortname;
> +
> +       if (!refname || !(flags & REF_ISSYMREF) ||
> +                       !skip_prefix(refname, "refs/heads/", &shortname))

We probably don't even need to check more than !refname. Symbolic refs
from HEAD must be refs/heads/* or it's an error (fsck will complain).
But it's probably also ok to stay strict.

> +               return 0;
> +
> +       strbuf_add(&pattern, cond, cond_len);
> +       ret = !wildmatch(pattern.buf, shortname, WM_PATHNAME);
> +       strbuf_release(&pattern);
> +       return ret;
> +}
-- 
Duy

  parent reply index

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-05 16:24 [PATCH 0/7] teach branch-specific options for format-patch Denton Liu
2019-05-05 16:24 ` [PATCH 1/7] t4014: clean up style Denton Liu
2019-05-05 16:24 ` [PATCH 2/7] Doc: add more detail for git-format-patch Denton Liu
2019-05-05 16:24 ` [PATCH 3/7] branch.c: extract read_branch_config function Denton Liu
2019-05-05 16:24 ` [PATCH 4/7] format-patch: make cover letter subject configurable Denton Liu
2019-05-05 16:24 ` [PATCH 5/7] format-patch: move extra_headers logic later Denton Liu
2019-05-05 16:24 ` [PATCH 6/7] string-list: create string_list_append_all Denton Liu
2019-05-05 16:24 ` [PATCH 7/7] format-patch: read branch-specific To: and Cc: headers Denton Liu
2019-05-07  8:56 ` [PATCH 0/7] teach branch-specific options for format-patch Junio C Hamano
2019-05-07 14:19   ` Denton Liu
2019-05-07 15:05     ` Junio C Hamano
2019-05-07 15:21       ` Denton Liu
2019-05-07 15:46         ` Ævar Arnfjörð Bjarmason
2019-05-08  1:45           ` Junio C Hamano
2019-05-31  2:00             ` [RFC PATCH] config: learn the "onbranch:" includeIf condition Denton Liu
2019-05-31 12:58               ` Johannes Schindelin
2019-05-31 13:16                 ` Denton Liu
2019-05-31 17:23                   ` Johannes Schindelin
2019-05-31 18:44                     ` Denton Liu
2019-05-31 19:33               ` [PATCH v2] " Denton Liu
2019-05-31 20:14                 ` Johannes Schindelin
2019-06-05  8:02                   ` Johannes Schindelin
2019-06-05 10:08                 ` Duy Nguyen [this message]
2019-06-05 21:21                 ` [PATCH v3] " Denton Liu
2019-06-06 12:52                   ` Johannes Schindelin
2019-05-17  0:27 ` [PATCH v2 0/6] teach branch-specific options for format-patch Denton Liu
2019-05-17  0:27   ` [PATCH v2 1/6] t4014: clean up style Denton Liu
2019-05-17  0:27   ` [PATCH v2 2/6] Doc: add more detail for git-format-patch Denton Liu
2019-05-17  0:27   ` [PATCH v2 3/6] format-patch: make cover letter subject configurable Denton Liu
2019-05-17  0:27   ` [PATCH v2 4/6] format-patch: move extra_headers logic later Denton Liu
2019-05-17  0:27   ` [PATCH v2 5/6] string-list: create string_list_append_all Denton Liu
2019-05-17  0:27   ` [PATCH v2 6/6] format-patch: read branch-specific To: and Cc: headers Denton Liu
2019-05-17  4:12   ` [PATCH v2 0/6] teach branch-specific options for format-patch Junio C Hamano
2019-05-17  7:25     ` Denton Liu
2019-05-17 16:54       ` Denton Liu
2019-05-22  2:44   ` [PATCH v3 0/8] " Denton Liu
2019-05-22  2:44     ` [PATCH v3 1/8] t4014: clean up style Denton Liu
2019-05-22  2:44     ` [PATCH v3 2/8] Doc: add more detail for git-format-patch Denton Liu
2019-05-22  2:44     ` [PATCH v3 3/8] format-patch: infer cover letter from branch description Denton Liu
2019-05-22  2:44     ` [PATCH v3 4/8] format-patch: move extra_headers logic later Denton Liu
2019-05-22  2:44     ` [PATCH v3 5/8] string-list: create string_list_append_all Denton Liu
2019-05-22  2:44     ` [PATCH v3 6/8] format-patch: read branch-specific To: and Cc: headers Denton Liu
2019-05-22  2:44     ` [PATCH v3 7/8] format-patch: move output_directory logic later Denton Liu
2019-05-22  2:44     ` [PATCH v3 8/8] format-patch: read branch-specific output directory Denton Liu
2019-05-31  0:30     ` [PATCH v3 0/8] teach branch-specific options for format-patch Denton Liu
2019-06-14 21:56     ` [RESEND PATCH " Denton Liu
2019-06-14 21:56       ` [RESEND PATCH v3 1/8] t4014: clean up style Denton Liu
2019-06-14 21:56       ` [RESEND PATCH v3 2/8] Doc: add more detail for git-format-patch Denton Liu
2019-06-14 21:56       ` [RESEND PATCH v3 3/8] format-patch: infer cover letter from branch description Denton Liu
2019-06-14 21:56       ` [RESEND PATCH v3 4/8] format-patch: move extra_headers logic later Denton Liu
2019-06-14 21:56       ` [RESEND PATCH v3 5/8] string-list: create string_list_append_all Denton Liu
2019-06-14 21:56       ` [RESEND PATCH v3 6/8] format-patch: read branch-specific To: and Cc: headers Denton Liu
2019-06-14 21:56       ` [RESEND PATCH v3 7/8] format-patch: move output_directory logic later Denton Liu
2019-06-14 21:56       ` [RESEND PATCH v3 8/8] format-patch: read branch-specific output directory Denton Liu
2019-10-15  9:06     ` [PATCH v6 0/3] format-patch: learn --infer-cover-subject option (also t4014 cleanup) Denton Liu
2019-10-15  9:06       ` [PATCH v6 1/3] format-patch: replace erroneous and condition Denton Liu
2019-10-15  9:06       ` [PATCH v6 2/3] format-patch: use enum variables Denton Liu
2019-10-15  9:06       ` [PATCH v6 3/3] format-patch: teach --cover-from-description option Denton Liu
2019-10-16  1:28       ` [PATCH v6 0/3] format-patch: learn --infer-cover-subject option (also t4014 cleanup) Junio C Hamano

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