receive-pack: convert push-to-checkout hook to hook.h

Move the push-to-checkout hook away from run-command.h to and over to
the new hook.h library.

This removes the last direct user of run_hook_le(), so we could remove
that function now, but let's leave that to a follow-up cleanup commit.

Signed-off-by: Emily Shaffer <[email protected]>
Signed-off-by: Ævar Arnfjörð Bjarmason <[email protected]>
Acked-by: Emily Shaffer <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: nasamuffin

builtin/receive-pack.c

@@ -1424,9 +1424,12 @@ static const char *push_to_checkout(unsigned char *hash,
 				    struct strvec *env,
 				    const char *work_tree)
 {
+	struct run_hooks_opt opt = RUN_HOOKS_OPT_INIT;
+
 	strvec_pushf(env, "GIT_WORK_TREE=%s", absolute_path(work_tree));
-	if (run_hook_le(env->v, push_to_checkout_hook,
-			hash_to_hex(hash), NULL))
+	strvec_pushv(&opt.env, env->v);
+	strvec_push(&opt.args, hash_to_hex(hash));
+	if (run_hooks_opt(push_to_checkout_hook, &opt))
 		return "push-to-checkout hook declined";
 	else
 		return NULL;