1 files changed, 26 insertions, 25 deletions

diff --git a/submodule.c b/submodule.c
index 78aed03d92..c689070524 100644
--- a/submodule.c
+++ b/submodule.c
@@ -201,6 +201,8 @@ int register_all_submodule_odb_as_alternates(void)
 		add_to_alternates_memory(added_submodule_odb_paths.items[i].string);
 	if (ret) {
 		string_list_clear(&added_submodule_odb_paths, 0);
+		trace2_data_intmax("submodule", the_repository,
+				   "register_all_submodule_odb_as_alternates/registered", ret);
 		if (git_env_bool("GIT_TEST_FATAL_REGISTER_SUBMODULE_ODB", 0))
 			BUG("register_all_submodule_odb_as_alternates() called");
 	}
@@ -525,9 +527,6 @@ static void prepare_submodule_repo_env_in_gitdir(struct strvec *out)
 /*
  * Initialize a repository struct for a submodule based on the provided 'path'.
  *
- * Unlike repo_submodule_init, this tolerates submodules not present
- * in .gitmodules. This function exists only to preserve historical behavior,
- *
  * Returns the repository struct on success,
  * NULL when the submodule is not present.
  */
@@ -931,23 +930,33 @@ struct has_commit_data {
 static int check_has_commit(const struct object_id *oid, void *data)
 {
 	struct has_commit_data *cb = data;
+	struct repository subrepo;
+	enum object_type type;
 
-	enum object_type type = oid_object_info(cb->repo, oid, NULL);
+	if (repo_submodule_init(&subrepo, cb->repo, cb->path, null_oid())) {
+		cb->result = 0;
+		goto cleanup;
+	}
+
+	type = oid_object_info(&subrepo, oid, NULL);
 
 	switch (type) {
 	case OBJ_COMMIT:
-		return 0;
+		goto cleanup;
 	case OBJ_BAD:
 		/*
 		 * Object is missing or invalid. If invalid, an error message
 		 * has already been printed.
 		 */
 		cb->result = 0;
-		return 0;
+		goto cleanup;
 	default:
 		die(_("submodule entry '%s' (%s) is a %s, not a commit"),
 		    cb->path, oid_to_hex(oid), type_name(type));
 	}
+cleanup:
+	repo_clear(&subrepo);
+	return 0;
 }
 
 static int submodule_has_commits(struct repository *r,
@@ -1321,9 +1330,11 @@ struct submodule_parallel_fetch {
 
 	struct strbuf submodules_with_errors;
 };
-#define SPF_INIT {0, STRVEC_INIT, NULL, NULL, 0, 0, 0, 0, \
-		  STRING_LIST_INIT_DUP, \
-		  NULL, 0, 0, STRBUF_INIT}
+#define SPF_INIT { \
+	.args = STRVEC_INIT, \
+	.changed_submodule_names = STRING_LIST_INIT_DUP, \
+	.submodules_with_errors = STRBUF_INIT, \
+}
 
 static int get_fetch_recurse_config(const struct submodule *submodule,
 				    struct submodule_parallel_fetch *spf)
@@ -1421,24 +1432,13 @@ static void fetch_task_release(struct fetch_task *p)
 }
 
 static struct repository *get_submodule_repo_for(struct repository *r,
-						 const struct submodule *sub)
+						 const char *path)
 {
 	struct repository *ret = xmalloc(sizeof(*ret));
 
-	if (repo_submodule_init(ret, r, sub)) {
-		/*
-		 * No entry in .gitmodules? Technically not a submodule,
-		 * but historically we supported repositories that happen to be
-		 * in-place where a gitlink is. Keep supporting them.
-		 */
-		struct strbuf gitdir = STRBUF_INIT;
-		strbuf_repo_worktree_path(&gitdir, r, "%s/.git", sub->path);
-		if (repo_init(ret, gitdir.buf, NULL)) {
-			strbuf_release(&gitdir);
-			free(ret);
-			return NULL;
-		}
-		strbuf_release(&gitdir);
+	if (repo_submodule_init(ret, r, path, null_oid())) {
+		free(ret);
+		return NULL;
 	}
 
 	return ret;
@@ -1480,7 +1480,7 @@ static int get_next_submodule(struct child_process *cp,
 			continue;
 		}
 
-		task->repo = get_submodule_repo_for(spf->r, task->sub);
+		task->repo = get_submodule_repo_for(spf->r, task->sub->path);
 		if (task->repo) {
 			struct strbuf submodule_prefix = STRBUF_INIT;
 			child_process_init(cp);
@@ -1908,6 +1908,7 @@ static void submodule_reset_index(const char *path)
 
 	strvec_pushf(&cp.args, "--super-prefix=%s%s/",
 		     get_super_prefix_or_empty(), path);
+	/* TODO: determine if this might overwright untracked files */
 	strvec_pushl(&cp.args, "read-tree", "-u", "--reset", NULL);
 
 	strvec_push(&cp.args, empty_tree_oid_hex());