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From: Junio C Hamano <gitster@pobox•com>
To: "Rubén Justo" <rjusto@gmail•com>
Cc: Git List <git@vger•kernel.org>
Subject: Re: [PATCH 2/4] completion: introduce __git_find_subcommand
Date: Fri, 26 Jan 2024 09:30:44 -0800	[thread overview]
Message-ID: <xmqqh6j0ngsb.fsf@gitster.g> (raw)
In-Reply-To: <221f88b9-fc91-479f-8d08-f530796e2d13@gmail.com> ("Rubén Justo"'s message of "Fri, 26 Jan 2024 13:51:46 +0100")

Rubén Justo <rjusto@gmail•com> writes:

> Let's have a function to get the current subcommand when completing
> commands that follow the syntax:
>
>     git <command> <subcommand>
>
> As a convenience, let's allow an optional "default subcommand" to be
> returned if none is found.
>
> Signed-off-by: Rubén Justo <rjusto@gmail•com>
> ---
>  contrib/completion/git-completion.bash | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)
>
> diff --git a/contrib/completion/git-completion.bash b/contrib/completion/git-completion.bash
> index 916e137021..5f2e904b56 100644
> --- a/contrib/completion/git-completion.bash
> +++ b/contrib/completion/git-completion.bash
> @@ -575,6 +575,26 @@ __gitcomp_subcommand ()
>  	fi
>  }
>  
> +# Find the current subcommand for commands that follow the syntax:
> +#
> +#    git <command> <subcommand>
> +#
> +# 1: List of possible subcommands.
> +# 2: Optional subcommand to return when none is found.
> +__git_find_subcommand ()
> +{
> +	local subcommand subcommands="$1" default_subcommand="$2"

Are the callers expected to form "$1" by concatenating known tokens
with a space?

I am just wondering if we can avoid looping, e.g.

	local nextword=${words[__git_cmd_idx+1]}
	case " $subcommands " in
	*" $nextword "*)
		echo "$nextword"
		return
		;;
	esac

It hopefully should not be a huge deal either way, though. 

> +
> +	for subcommand in $subcommands; do
> +		if [ "$subcommand" = "${words[__git_cmd_idx+1]}" ]; then
> +			echo $subcommand
> +			return
> +		fi
> +	done
> +
> +	echo $default_subcommand
> +}
> +
>  # Execute 'git ls-files', unless the --committable option is specified, in
>  # which case it runs 'git diff-index' to find out the files that can be
>  # committed.  It return paths relative to the directory specified in the first

  reply	other threads:[~2024-01-26 17:30 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-26 12:46 [PATCH 0/4] completion for git-reflog show Rubén Justo
2024-01-26 12:51 ` [PATCH 1/4] completion: introduce __gitcomp_subcommand Rubén Justo
2024-01-26 17:26   ` Junio C Hamano
2024-01-26 20:09     ` Rubén Justo
2024-01-26 20:34       ` Junio C Hamano
2024-01-26 12:51 ` [PATCH 2/4] completion: introduce __git_find_subcommand Rubén Justo
2024-01-26 17:30   ` Junio C Hamano [this message]
2024-01-27 13:20     ` Rubén Justo
2024-01-26 12:53 ` [PATCH 3/4] completion: reflog with implicit "show" Rubén Justo
2024-01-26 17:57   ` Junio C Hamano
2024-01-26 20:20     ` Rubén Justo
2024-02-21  1:46       ` Junio C Hamano
2024-02-21 18:06         ` Rubén Justo
2024-02-29 19:00           ` Rubén Justo
2024-02-29 19:22             ` Junio C Hamano
2024-01-26 12:53 ` [PATCH 4/4] completion: reflog show <log-options> Rubén Justo
2024-03-02 14:30 ` [PATCH v2 0/5] completion for git-reflog show Rubén Justo
2024-03-02 14:37   ` [PATCH v2 1/5] completion: reflog with implicit "show" Rubén Justo
2024-03-02 15:50   ` [PATCH v2 3/5] completion: reflog show <log-options> Rubén Justo
2024-03-02 15:51   ` [PATCH v2 2/5] completion: introduce __git_find_subcommand Rubén Justo
2024-03-02 15:52   ` [PATCH v2 4/5] completion: factor out __git_resolve_builtins Rubén Justo
2024-03-02 15:52   ` [PATCH v2 5/5] completion: reflog subcommands and options Rubén Justo

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