Subject: Re: [PATCH] submodule: use strvec_pushf() for --submodule-prefix

From: Patrick Steinhardt <[email-masked]>
Date: Tue, 27 Feb 2024 08:31:30 +0100

On Sun, Feb 25, 2024 at 07:24:39PM +0100, René Scharfe wrote:
> Add the option --submodule-prefix and its argument directly using
> strvec_pushf() instead of via a detour through a strbuf.  This is
> shorter, easier to read and doesn't require any explicit cleanup
> afterwards.

This looks obviously good to me. Thanks for this nice simplification!

Patrick

> Signed-off-by: René Scharfe <[email-masked]>
> ---
>  submodule.c | 19 ++++---------------
>  1 file changed, 4 insertions(+), 15 deletions(-)
> 
> diff --git a/submodule.c b/submodule.c
> index 213da79f66..40f13a3685 100644
> --- a/submodule.c
> +++ b/submodule.c
> @@ -1687,8 +1687,6 @@ static int get_next_submodule(struct child_process *cp, struct strbuf *err,
>  		task = get_fetch_task_from_changed(spf, err);
> 
>  	if (task) {
> -		struct strbuf submodule_prefix = STRBUF_INIT;
> -
>  		child_process_init(cp);
>  		cp->dir = task->repo->gitdir;
>  		prepare_submodule_repo_env_in_gitdir(&cp->env);
> @@ -1698,15 +1696,11 @@ static int get_next_submodule(struct child_process *cp, struct strbuf *err,
>  			strvec_pushv(&cp->args, task->git_args.v);
>  		strvec_pushv(&cp->args, spf->args.v);
>  		strvec_push(&cp->args, task->default_argv);
> -		strvec_push(&cp->args, "--submodule-prefix");
> +		strvec_pushf(&cp->args, "--submodule-prefix=%s%s/",
> +			     spf->prefix, task->sub->path);
> 
> -		strbuf_addf(&submodule_prefix, "%s%s/",
> -						spf->prefix,
> -						task->sub->path);
> -		strvec_push(&cp->args, submodule_prefix.buf);
>  		*task_cb = task;
> 
> -		strbuf_release(&submodule_prefix);
>  		string_list_insert(&spf->seen_submodule_names, task->sub->name);
>  		return 1;
>  	}
> @@ -1714,12 +1708,8 @@ static int get_next_submodule(struct child_process *cp, struct strbuf *err,
>  	if (spf->oid_fetch_tasks_nr) {
>  		struct fetch_task *task =
>  			spf->oid_fetch_tasks[spf->oid_fetch_tasks_nr - 1];
> -		struct strbuf submodule_prefix = STRBUF_INIT;
>  		spf->oid_fetch_tasks_nr--;
> 
> -		strbuf_addf(&submodule_prefix, "%s%s/",
> -			    spf->prefix, task->sub->path);
> -
>  		child_process_init(cp);
>  		prepare_submodule_repo_env_in_gitdir(&cp->env);
>  		cp->git_cmd = 1;
> @@ -1728,8 +1718,8 @@ static int get_next_submodule(struct child_process *cp, struct strbuf *err,
>  		strvec_init(&cp->args);
>  		strvec_pushv(&cp->args, spf->args.v);
>  		strvec_push(&cp->args, "on-demand");
> -		strvec_push(&cp->args, "--submodule-prefix");
> -		strvec_push(&cp->args, submodule_prefix.buf);
> +		strvec_pushf(&cp->args, "--submodule-prefix=%s%s/",
> +			     spf->prefix, task->sub->path);
> 
>  		/* NEEDSWORK: have get_default_remote from submodule--helper */
>  		strvec_push(&cp->args, "origin");
> @@ -1737,7 +1727,6 @@ static int get_next_submodule(struct child_process *cp, struct strbuf *err,
>  					  append_oid_to_argv, &cp->args);
> 
>  		*task_cb = task;
> -		strbuf_release(&submodule_prefix);
>  		return 1;
>  	}
> 
> --
> 2.44.0
>