> +int hook_exists(const char *hookname)
> +{
> + const char *value = NULL;
> + struct strbuf hook_key = STRBUF_INIT;
> + strbuf_addf(&hook_key, "hook.%s.command", hookname);
> +
> + return (!git_config_get_value(hook_key.buf, &value)) || !!find_hook(hookname);
> +}
I was surprised that this didn't share code with hook_list. Upon further
thought, hook_list might be expensive if hooks are present, but if we
can cache results, I think it's worth it. A caller that calls this
function usually will run hooks if they are present, so it's not wasted
work to construct the hook list.
