[PATCH 07/17] receive-pack: convert push-to-checkout hook to hook.h

[Emily Shaffer <emilyshaffer@google.com>]

By using hook.h instead of run-command.h to invoke push-to-checkout,
hooks can now be specified in the config as well as in the hookdir.
push-to-checkout is not called anywhere but in builtin/receive-pack.c.

Signed-off-by: Emily Shaffer <emilyshaffer@google.com>
---
 Documentation/githooks.txt |  1 +
 builtin/receive-pack.c     | 15 +++++++++++----
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/Documentation/githooks.txt b/Documentation/githooks.txt
index 8249ecec5f..8de512ee5d 100644
--- a/Documentation/githooks.txt
+++ b/Documentation/githooks.txt
@@ -547,6 +547,7 @@ that switches branches while
 keeping the local changes in the working tree that do not interfere
 with the difference between the branches.
 
+Hooks executed during 'push-to-checkout' will not be parallelized.
 
 pre-auto-gc
 ~~~~~~~~~~~
diff --git a/builtin/receive-pack.c b/builtin/receive-pack.c
index f1f0f7bef6..d64a3076be 100644
--- a/builtin/receive-pack.c
+++ b/builtin/receive-pack.c
@@ -29,6 +29,7 @@
 #include "commit-reach.h"
 #include "worktree.h"
 #include "shallow.h"
+#include "hook.h"
 
 static const char * const receive_pack_usage[] = {
 	N_("git receive-pack <git-dir>"),
@@ -1427,12 +1428,18 @@ 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_SYNC;
+
 	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(push_to_checkout_hook, &opt)) {
+		run_hooks_opt_clear(&opt);
 		return "push-to-checkout hook declined";
-	else
+	} else {
+		run_hooks_opt_clear(&opt);
 		return NULL;
+	}
 }
 
 static const char *update_worktree(unsigned char *sha1, const struct worktree *worktree)
@@ -1456,7 +1463,7 @@ static const char *update_worktree(unsigned char *sha1, const struct worktree *w
 
 	strvec_pushf(&env, "GIT_DIR=%s", absolute_path(git_dir));
 
-	if (!find_hook(push_to_checkout_hook))
+	if (!hook_exists(push_to_checkout_hook, configured_hookdir_opt()))
 		retval = push_to_deploy(sha1, &env, work_tree);
 	else
 		retval = push_to_checkout(sha1, &env, work_tree);
-- 
2.28.0.rc0.142.g3c755180ce-goog