Re: [PATCH 05/10] reference-transaction: use hook.h to run hooks

> diff --git a/refs.c b/refs.c
> index 4ff55cf24f..5a2b6ad1fc 100644
> --- a/refs.c
> +++ b/refs.c
> @@ -2377,31 +2377,16 @@ static int ref_update_reject_duplicates(struct string_list *refnames,
>  	return 0;
>  }
>  
> -static int run_transaction_hook(struct ref_transaction *transaction,
> -				const char *state)
> +static int transaction_hook_feed_stdin(int hook_stdin_fd, void *pp_cb, void *pp_task_cb UNUSED)
>  {
> -	struct child_process proc = CHILD_PROCESS_INIT;
> +	struct hook_cb_data *hook_cb = pp_cb;
> +	struct run_hooks_opt *opt = hook_cb->options;
> +	struct ref_transaction *transaction = opt->feed_pipe_ctx;
>  	struct strbuf buf = STRBUF_INIT;
> -	const char *hook;
> -	int ret = 0, i;
> -
> -	hook = find_hook(transaction->ref_store->repo, "reference-transaction");
> -	if (!hook)
> -		return ret;
> -
> -	strvec_pushl(&proc.args, hook, state, NULL);
> -	proc.in = -1;
> -	proc.stdout_to_stderr = 1;
> -	proc.trace2_hook_name = "reference-transaction";
> -
> -	ret = start_command(&proc);
> -	if (ret)
> -		return ret;
> -
> -	sigchain_push(SIGPIPE, SIG_IGN);
>  
> -	for (i = 0; i < transaction->nr; i++) {
> +	for (int i = 0; i < transaction->nr; i++) {
>  		struct ref_update *update = transaction->updates[i];
> +		int ret;
>  
>  		if (update->flags & REF_LOG_ONLY)
>  			continue;