Merge branch 'sb/submodule-move-nested'

Moving a submodule that itself has submodule in it with "git mv"
forgot to make necessary adjustment to the nested sub-submodules;
now the codepath learned to recurse into the submodules.

* sb/submodule-move-nested:
  submodule: fixup nested submodules after moving the submodule
  submodule-config: remove submodule_from_cache
  submodule-config: add repository argument to submodule_from_{name, path}
  submodule-config: allow submodule_free to handle arbitrary repositories
  grep: remove "repo" arg from non-supporting funcs
  submodule.h: drop declaration of connect_work_tree_and_git_dir

15 files changed, 140 insertions, 79 deletions

diff --git a/Documentation/technical/api-submodule-config.txt b/Documentation/technical/api-submodule-config.txt
index ee907c4a82..fb06089393 100644
--- a/Documentation/technical/api-submodule-config.txt
+++ b/Documentation/technical/api-submodule-config.txt
@@ -38,7 +38,7 @@ Data Structures
 Functions
 ---------
 
-`void submodule_free()`::
+`void submodule_free(struct repository *r)`::
 
 	Use these to free the internally cached values.
 
diff --git a/builtin/grep.c b/builtin/grep.c
index 5f32d2ce84..6e7bc76785 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -602,8 +602,7 @@ static int grep_tree(struct grep_opt *opt, const struct pathspec *pathspec,
 }
 
 static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec,
-		       struct object *obj, const char *name, const char *path,
-		       struct repository *repo)
+		       struct object *obj, const char *name, const char *path)
 {
 	if (obj->type == OBJ_BLOB)
 		return grep_oid(opt, &obj->oid, name, 0, path);
@@ -630,7 +629,7 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec,
 		}
 		init_tree_desc(&tree, data, size);
 		hit = grep_tree(opt, pathspec, &tree, &base, base.len,
-				obj->type == OBJ_COMMIT, repo);
+				obj->type == OBJ_COMMIT, the_repository);
 		strbuf_release(&base);
 		free(data);
 		return hit;
@@ -639,7 +638,6 @@ static int grep_object(struct grep_opt *opt, const struct pathspec *pathspec,
 }
 
 static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec,
-			struct repository *repo,
 			const struct object_array *list)
 {
 	unsigned int i;
@@ -652,11 +650,11 @@ static int grep_objects(struct grep_opt *opt, const struct pathspec *pathspec,
 
 		/* load the gitmodules file for this rev */
 		if (recurse_submodules) {
-			submodule_free();
+			submodule_free(the_repository);
 			gitmodules_config_oid(&real_obj->oid);
 		}
-		if (grep_object(opt, pathspec, real_obj, list->objects[i].name, list->objects[i].path,
-				repo)) {
+		if (grep_object(opt, pathspec, real_obj, list->objects[i].name,
+				list->objects[i].path)) {
 			hit = 1;
 			if (opt->status_only)
 				break;
@@ -1108,7 +1106,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix)
 		if (cached)
 			die(_("both --cached and trees are given."));
 
-		hit = grep_objects(&opt, &pathspec, the_repository, &list);
+		hit = grep_objects(&opt, &pathspec, &list);
 	}
 
 	if (num_threads)
diff --git a/builtin/mv.c b/builtin/mv.c
index 6d141f7a53..7a63667d64 100644
--- a/builtin/mv.c
+++ b/builtin/mv.c
@@ -276,10 +276,12 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
 			die_errno(_("renaming '%s' failed"), src);
 		}
 		if (submodule_gitfile[i]) {
-			if (submodule_gitfile[i] != SUBMODULE_WITH_GITDIR)
-				connect_work_tree_and_git_dir(dst, submodule_gitfile[i]);
 			if (!update_path_in_gitmodules(src, dst))
 				gitmodules_modified = 1;
+			if (submodule_gitfile[i] != SUBMODULE_WITH_GITDIR)
+				connect_work_tree_and_git_dir(dst,
+							      submodule_gitfile[i],
+							      1);
 		}
 
 		if (mode == WORKING_DIRECTORY)
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index a404df3ea4..7586f776fe 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -455,7 +455,7 @@ static void init_submodule(const char *path, const char *prefix,
 
 	displaypath = get_submodule_displaypath(path, prefix);
 
-	sub = submodule_from_path(&null_oid, path);
+	sub = submodule_from_path(the_repository, &null_oid, path);
 
 	if (!sub)
 		die(_("No url found for submodule path '%s' in .gitmodules"),
@@ -622,7 +622,7 @@ static void status_submodule(const char *path, const struct object_id *ce_oid,
 	struct rev_info rev;
 	int diff_files_result;
 
-	if (!submodule_from_path(&null_oid, path))
+	if (!submodule_from_path(the_repository, &null_oid, path))
 		die(_("no submodule mapping found in .gitmodules for path '%s'"),
 		      path);
 
@@ -746,7 +746,7 @@ static int module_name(int argc, const char **argv, const char *prefix)
 	if (argc != 2)
 		usage(_("git submodule--helper name <path>"));
 
-	sub = submodule_from_path(&null_oid, argv[1]);
+	sub = submodule_from_path(the_repository, &null_oid, argv[1]);
 
 	if (!sub)
 		die(_("no submodule mapping found in .gitmodules for path '%s'"),
@@ -777,7 +777,7 @@ static void sync_submodule(const char *path, const char *prefix,
 	if (!is_submodule_active(the_repository, path))
 		return;
 
-	sub = submodule_from_path(&null_oid, path);
+	sub = submodule_from_path(the_repository, &null_oid, path);
 
 	if (sub && sub->url) {
 		if (starts_with_dot_dot_slash(sub->url) ||
@@ -930,7 +930,7 @@ static void deinit_submodule(const char *path, const char *prefix,
 	struct strbuf sb_config = STRBUF_INIT;
 	char *sub_git_dir = xstrfmt("%s/.git", path);
 
-	sub = submodule_from_path(&null_oid, path);
+	sub = submodule_from_path(the_repository, &null_oid, path);
 
 	if (!sub || !sub->name)
 		goto cleanup;
@@ -1264,8 +1264,7 @@ static int module_clone(int argc, const char **argv, const char *prefix)
 		strbuf_reset(&sb);
 	}
 
-	/* Connect module worktree and git dir */
-	connect_work_tree_and_git_dir(path, sm_gitdir);
+	connect_work_tree_and_git_dir(path, sm_gitdir, 0);
 
 	p = git_pathdup_submodule(path, "config");
 	if (!p)
@@ -1372,7 +1371,7 @@ static int prepare_to_clone_next_submodule(const struct cache_entry *ce,
 		goto cleanup;
 	}
 
-	sub = submodule_from_path(&null_oid, ce->name);
+	sub = submodule_from_path(the_repository, &null_oid, ce->name);
 
 	if (suc->recursive_prefix)
 		displaypath = relative_path(suc->recursive_prefix,
@@ -1655,7 +1654,7 @@ static const char *remote_submodule_branch(const char *path)
 	const char *branch = NULL;
 	char *key;
 
-	sub = submodule_from_path(&null_oid, path);
+	sub = submodule_from_path(the_repository, &null_oid, path);
 	if (!sub)
 		return NULL;
 
diff --git a/dir.c b/dir.c
index 63a917be45..be08d3d296 100644
--- a/dir.c
+++ b/dir.c
@@ -19,6 +19,7 @@
 #include "varint.h"
 #include "ewah/ewok.h"
 #include "fsmonitor.h"
+#include "submodule-config.h"
 
 /*
  * Tells read_directory_recursive how a file or directory should be treated.
@@ -3010,8 +3011,57 @@ void untracked_cache_add_to_index(struct index_state *istate,
 	untracked_cache_invalidate_path(istate, path, 1);
 }
 
-/* Update gitfile and core.worktree setting to connect work tree and git dir */
-void connect_work_tree_and_git_dir(const char *work_tree_, const char *git_dir_)
+static void connect_wt_gitdir_in_nested(const char *sub_worktree,
+					const char *sub_gitdir)
+{
+	int i;
+	struct repository subrepo;
+	struct strbuf sub_wt = STRBUF_INIT;
+	struct strbuf sub_gd = STRBUF_INIT;
+
+	const struct submodule *sub;
+
+	/* If the submodule has no working tree, we can ignore it. */
+	if (repo_init(&subrepo, sub_gitdir, sub_worktree))
+		return;
+
+	if (repo_read_index(&subrepo) < 0)
+		die("index file corrupt in repo %s", subrepo.gitdir);
+
+	for (i = 0; i < subrepo.index->cache_nr; i++) {
+		const struct cache_entry *ce = subrepo.index->cache[i];
+
+		if (!S_ISGITLINK(ce->ce_mode))
+			continue;
+
+		while (i + 1 < subrepo.index->cache_nr &&
+		       !strcmp(ce->name, subrepo.index->cache[i + 1]->name))
+			/*
+			 * Skip entries with the same name in different stages
+			 * to make sure an entry is returned only once.
+			 */
+			i++;
+
+		sub = submodule_from_path(&subrepo, &null_oid, ce->name);
+		if (!sub || !is_submodule_active(&subrepo, ce->name))
+			/* .gitmodules broken or inactive sub */
+			continue;
+
+		strbuf_reset(&sub_wt);
+		strbuf_reset(&sub_gd);
+		strbuf_addf(&sub_wt, "%s/%s", sub_worktree, sub->path);
+		strbuf_addf(&sub_gd, "%s/modules/%s", sub_gitdir, sub->name);
+
+		connect_work_tree_and_git_dir(sub_wt.buf, sub_gd.buf, 1);
+	}
+	strbuf_release(&sub_wt);
+	strbuf_release(&sub_gd);
+	repo_clear(&subrepo);
+}
+
+void connect_work_tree_and_git_dir(const char *work_tree_,
+				   const char *git_dir_,
+				   int recurse_into_nested)
 {
 	struct strbuf gitfile_sb = STRBUF_INIT;
 	struct strbuf cfg_sb = STRBUF_INIT;
@@ -3041,6 +3091,10 @@ void connect_work_tree_and_git_dir(const char *work_tree_, const char *git_dir_)
 	strbuf_release(&gitfile_sb);
 	strbuf_release(&cfg_sb);
 	strbuf_release(&rel_path);
+
+	if (recurse_into_nested)
+		connect_wt_gitdir_in_nested(work_tree, git_dir);
+
 	free(work_tree);
 	free(git_dir);
 }
@@ -3054,5 +3108,5 @@ void relocate_gitdir(const char *path, const char *old_git_dir, const char *new_
 		die_errno(_("could not migrate git directory from '%s' to '%s'"),
 			old_git_dir, new_git_dir);
 
-	connect_work_tree_and_git_dir(path, new_git_dir);
+	connect_work_tree_and_git_dir(path, new_git_dir, 0);
 }
diff --git a/dir.h b/dir.h
index b0758b82a2..3870193e52 100644
--- a/dir.h
+++ b/dir.h
@@ -359,7 +359,17 @@ struct untracked_cache *read_untracked_extension(const void *data, unsigned long
 void write_untracked_extension(struct strbuf *out, struct untracked_cache *untracked);
 void add_untracked_cache(struct index_state *istate);
 void remove_untracked_cache(struct index_state *istate);
-extern void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir);
+
+/*
+ * Connect a worktree to a git directory by creating (or overwriting) a
+ * '.git' file containing the location of the git directory. In the git
+ * directory set the core.worktree setting to indicate where the worktree is.
+ * When `recurse_into_nested` is set, recurse into any nested submodules,
+ * connecting them as well.
+ */
+extern void connect_work_tree_and_git_dir(const char *work_tree,
+					  const char *git_dir,
+					  int recurse_into_nested);
 extern void relocate_gitdir(const char *path,
 			    const char *old_git_dir,
 			    const char *new_git_dir);
diff --git a/repository.c b/repository.c
index a4848c1bd0..beff3caa9e 100644
--- a/repository.c
+++ b/repository.c
@@ -135,9 +135,9 @@ static int read_and_verify_repository_format(struct repository_format *format,
  * Initialize 'repo' based on the provided 'gitdir'.
  * Return 0 upon success and a non-zero value upon failure.
  */
-static int repo_init(struct repository *repo,
-		     const char *gitdir,
-		     const char *worktree)
+int repo_init(struct repository *repo,
+	      const char *gitdir,
+	      const char *worktree)
 {
 	struct repository_format format;
 	memset(repo, 0, sizeof(*repo));
@@ -176,7 +176,7 @@ int repo_submodule_init(struct repository *submodule,
 	struct strbuf worktree = STRBUF_INIT;
 	int ret = 0;
 
-	sub = submodule_from_cache(superproject, &null_oid, path);
+	sub = submodule_from_path(superproject, &null_oid, path);
 	if (!sub) {
 		ret = -1;
 		goto out;
diff --git a/repository.h b/repository.h
index 09df94a472..6041367f08 100644
--- a/repository.h
+++ b/repository.h
@@ -97,6 +97,9 @@ extern void repo_set_gitdir(struct repository *repo,
 extern void repo_set_worktree(struct repository *repo, const char *path);
 extern void repo_set_hash_algo(struct repository *repo, int algo);
 extern void initialize_the_repository(void);
+extern int repo_init(struct repository *r,
+		     const char *gitdir,
+		     const char *worktree);
 extern int repo_submodule_init(struct repository *submodule,
 			       struct repository *superproject,
 			       const char *path);
diff --git a/submodule-config.c b/submodule-config.c
index 3f2075764f..d87c3ff63a 100644
--- a/submodule-config.c
+++ b/submodule-config.c
@@ -619,31 +619,24 @@ static void gitmodules_read_check(struct repository *repo)
 		repo_read_gitmodules(repo);
 }
 
-const struct submodule *submodule_from_name(const struct object_id *treeish_name,
+const struct submodule *submodule_from_name(struct repository *r,
+					    const struct object_id *treeish_name,
 		const char *name)
 {
-	gitmodules_read_check(the_repository);
-	return config_from(the_repository->submodule_cache, treeish_name, name, lookup_name);
+	gitmodules_read_check(r);
+	return config_from(r->submodule_cache, treeish_name, name, lookup_name);
 }
 
-const struct submodule *submodule_from_path(const struct object_id *treeish_name,
+const struct submodule *submodule_from_path(struct repository *r,
+					    const struct object_id *treeish_name,
 		const char *path)
 {
-	gitmodules_read_check(the_repository);
-	return config_from(the_repository->submodule_cache, treeish_name, path, lookup_path);
+	gitmodules_read_check(r);
+	return config_from(r->submodule_cache, treeish_name, path, lookup_path);
 }
 
-const struct submodule *submodule_from_cache(struct repository *repo,
-					     const struct object_id *treeish_name,
-					     const char *key)
+void submodule_free(struct repository *r)
 {
-	gitmodules_read_check(repo);
-	return config_from(repo->submodule_cache, treeish_name,
-			   key, lookup_path);
-}
-
-void submodule_free(void)
-{
-	if (the_repository->submodule_cache)
-		submodule_cache_clear(the_repository->submodule_cache);
+	if (r->submodule_cache)
+		submodule_cache_clear(r->submodule_cache);
 }
diff --git a/submodule-config.h b/submodule-config.h
index a5503a5d17..6f686184e8 100644
--- a/submodule-config.h
+++ b/submodule-config.h
@@ -39,13 +39,12 @@ extern int parse_update_recurse_submodules_arg(const char *opt, const char *arg)
 extern int parse_push_recurse_submodules_arg(const char *opt, const char *arg);
 extern void repo_read_gitmodules(struct repository *repo);
 extern void gitmodules_config_oid(const struct object_id *commit_oid);
-extern const struct submodule *submodule_from_name(
-		const struct object_id *commit_or_tree, const char *name);
-extern const struct submodule *submodule_from_path(
-		const struct object_id *commit_or_tree, const char *path);
-extern const struct submodule *submodule_from_cache(struct repository *repo,
-						    const struct object_id *treeish_name,
-						    const char *key);
-extern void submodule_free(void);
+const struct submodule *submodule_from_name(struct repository *r,
+					    const struct object_id *commit_or_tree,
+					    const char *name);
+const struct submodule *submodule_from_path(struct repository *r,
+					    const struct object_id *commit_or_tree,
+					    const char *path);
+void submodule_free(struct repository *r);
 
 #endif /* SUBMODULE_CONFIG_H */
diff --git a/submodule.c b/submodule.c
index 9a50168b23..74d35b2577 100644
--- a/submodule.c
+++ b/submodule.c
@@ -96,7 +96,7 @@ int update_path_in_gitmodules(const char *oldpath, const char *newpath)
 	if (is_gitmodules_unmerged(&the_index))
 		die(_("Cannot change unmerged .gitmodules, resolve merge conflicts first"));
 
-	submodule = submodule_from_path(&null_oid, oldpath);
+	submodule = submodule_from_path(the_repository, &null_oid, oldpath);
 	if (!submodule || !submodule->name) {
 		warning(_("Could not find section in .gitmodules where path=%s"), oldpath);
 		return -1;
@@ -130,7 +130,7 @@ int remove_path_from_gitmodules(const char *path)
 	if (is_gitmodules_unmerged(&the_index))
 		die(_("Cannot change unmerged .gitmodules, resolve merge conflicts first"));
 
-	submodule = submodule_from_path(&null_oid, path);
+	submodule = submodule_from_path(the_repository, &null_oid, path);
 	if (!submodule || !submodule->name) {
 		warning(_("Could not find section in .gitmodules where path=%s"), path);
 		return -1;
@@ -174,7 +174,8 @@ done:
 void set_diffopt_flags_from_submodule_config(struct diff_options *diffopt,
 					     const char *path)
 {
-	const struct submodule *submodule = submodule_from_path(&null_oid, path);
+	const struct submodule *submodule = submodule_from_path(the_repository,
+								&null_oid, path);
 	if (submodule) {
 		const char *ignore;
 		char *key;
@@ -230,7 +231,7 @@ int is_submodule_active(struct repository *repo, const char *path)
 	const struct string_list *sl;
 	const struct submodule *module;
 
-	module = submodule_from_cache(repo, &null_oid, path);
+	module = submodule_from_path(repo, &null_oid, path);
 
 	/* early return if there isn't a path->module mapping */
 	if (!module)
@@ -674,7 +675,7 @@ const struct submodule *submodule_from_ce(const struct cache_entry *ce)
 	if (!should_update_submodules())
 		return NULL;
 
-	return submodule_from_path(&null_oid, ce->name);
+	return submodule_from_path(the_repository, &null_oid, ce->name);
 }
 
 static struct oid_array *submodule_commits(struct string_list *submodules,
@@ -731,13 +732,14 @@ static void collect_changed_submodules_cb(struct diff_queue_struct *q,
 		if (!S_ISGITLINK(p->two->mode))
 			continue;
 
-		submodule = submodule_from_path(commit_oid, p->two->path);
+		submodule = submodule_from_path(the_repository,
+						commit_oid, p->two->path);
 		if (submodule)
 			name = submodule->name;
 		else {
 			name = default_name_or_path(p->two->path);
 			/* make sure name does not collide with existing one */
-			submodule = submodule_from_name(commit_oid, name);
+			submodule = submodule_from_name(the_repository, commit_oid, name);
 			if (submodule) {
 				warning("Submodule in commit %s at path: "
 					"'%s' collides with a submodule named "
@@ -945,7 +947,7 @@ int find_unpushed_submodules(struct oid_array *commits,
 		const struct submodule *submodule;
 		const char *path = NULL;
 
-		submodule = submodule_from_name(&null_oid, name->string);
+		submodule = submodule_from_name(the_repository, &null_oid, name->string);
 		if (submodule)
 			path = submodule->path;
 		else
@@ -1113,7 +1115,7 @@ static void calculate_changed_submodule_paths(void)
 	const struct string_list_item *name;
 
 	/* No need to check if there are no submodules configured */
-	if (!submodule_from_path(NULL, NULL))
+	if (!submodule_from_path(the_repository, NULL, NULL))
 		return;
 
 	argv_array_push(&argv, "--"); /* argv[0] program name */
@@ -1134,7 +1136,7 @@ static void calculate_changed_submodule_paths(void)
 		const struct submodule *submodule;
 		const char *path = NULL;
 
-		submodule = submodule_from_name(&null_oid, name->string);
+		submodule = submodule_from_name(the_repository, &null_oid, name->string);
 		if (submodule)
 			path = submodule->path;
 		else
@@ -1162,7 +1164,7 @@ int submodule_touches_in_range(struct object_id *excl_oid,
 	int ret;
 
 	/* No need to check if there are no submodules configured */
-	if (!submodule_from_path(NULL, NULL))
+	if (!submodule_from_path(the_repository, NULL, NULL))
 		return 0;
 
 	argv_array_push(&args, "--"); /* args[0] program name */
@@ -1234,7 +1236,7 @@ static int get_next_submodule(struct child_process *cp,
 		if (!S_ISGITLINK(ce->ce_mode))
 			continue;
 
-		submodule = submodule_from_cache(spf->r, &null_oid, ce->name);
+		submodule = submodule_from_path(spf->r, &null_oid, ce->name);
 		if (!submodule) {
 			const char *name = default_name_or_path(ce->name);
 			if (name) {
@@ -1604,7 +1606,7 @@ int submodule_move_head(const char *path,
 	if (old_head && !is_submodule_populated_gently(path, error_code_ptr))
 		return 0;
 
-	sub = submodule_from_path(&null_oid, path);
+	sub = submodule_from_path(the_repository, &null_oid, path);
 
 	if (!sub)
 		die("BUG: could not get submodule information for '%s'", path);
@@ -1623,7 +1625,7 @@ int submodule_move_head(const char *path,
 		} else {
 			char *gitdir = xstrfmt("%s/modules/%s",
 				    get_git_common_dir(), sub->name);
-			connect_work_tree_and_git_dir(path, gitdir);
+			connect_work_tree_and_git_dir(path, gitdir, 0);
 			free(gitdir);
 
 			/* make sure the index is clean as well */
@@ -1633,7 +1635,7 @@ int submodule_move_head(const char *path,
 		if (old_head && (flags & SUBMODULE_MOVE_HEAD_FORCE)) {
 			char *gitdir = xstrfmt("%s/modules/%s",
 				    get_git_common_dir(), sub->name);
-			connect_work_tree_and_git_dir(path, gitdir);
+			connect_work_tree_and_git_dir(path, gitdir, 1);
 			free(gitdir);
 		}
 	}
@@ -1886,7 +1888,7 @@ static void relocate_single_git_dir_into_superproject(const char *prefix,
 
 	real_old_git_dir = real_pathdup(old_git_dir, 1);
 
-	sub = submodule_from_path(&null_oid, path);
+	sub = submodule_from_path(the_repository, &null_oid, path);
 	if (!sub)
 		die(_("could not lookup name for submodule '%s'"), path);
 
@@ -1942,11 +1944,11 @@ void absorb_git_dir_into_superproject(const char *prefix,
 		* superproject did not rewrite the git file links yet,
 		* fix it now.
 		*/
-		sub = submodule_from_path(&null_oid, path);
+		sub = submodule_from_path(the_repository, &null_oid, path);
 		if (!sub)
 			die(_("could not lookup name for submodule '%s'"), path);
 		connect_work_tree_and_git_dir(path,
-			git_path("modules/%s", sub->name));
+			git_path("modules/%s", sub->name), 0);
 	} else {
 		/* Is it already absorbed into the superprojects git dir? */
 		char *real_sub_git_dir = real_pathdup(sub_git_dir, 1);
@@ -2088,7 +2090,7 @@ int submodule_to_gitdir(struct strbuf *buf, const char *submodule)
 		strbuf_addstr(buf, git_dir);
 	}
 	if (!is_git_directory(buf->buf)) {
-		sub = submodule_from_path(&null_oid, submodule);
+		sub = submodule_from_path(the_repository, &null_oid, submodule);
 		if (!sub) {
 			ret = -1;
 			goto cleanup;
diff --git a/submodule.h b/submodule.h
index 9589f13127..e5526f6aaa 100644
--- a/submodule.h
+++ b/submodule.h
@@ -105,7 +105,6 @@ extern int push_unpushed_submodules(struct oid_array *commits,
 				    const char **refspec, int refspec_nr,
 				    const struct string_list *push_options,
 				    int dry_run);
-extern void connect_work_tree_and_git_dir(const char *work_tree, const char *git_dir);
 /*
  * Given a submodule path (as in the index), return the repository
  * path of that submodule in 'buf'. Return -1 on error or when the
diff --git a/t/helper/test-submodule-config.c b/t/helper/test-submodule-config.c
index 5c6e4b010d..e2692746df 100644
--- a/t/helper/test-submodule-config.c
+++ b/t/helper/test-submodule-config.c
@@ -49,9 +49,11 @@ int cmd__submodule_config(int argc, const char **argv)
 			die_usage(argc, argv, "Commit not found.");
 
 		if (lookup_name) {
-			submodule = submodule_from_name(&commit_oid, path_or_name);
+			submodule = submodule_from_name(the_repository,
+							&commit_oid, path_or_name);
 		} else
-			submodule = submodule_from_path(&commit_oid, path_or_name);
+			submodule = submodule_from_path(the_repository,
+							&commit_oid, path_or_name);
 		if (!submodule)
 			die_usage(argc, argv, "Submodule not found.");
 
@@ -65,7 +67,7 @@ int cmd__submodule_config(int argc, const char **argv)
 		arg += 2;
 	}
 
-	submodule_free();
+	submodule_free(the_repository);
 
 	return 0;
 }
diff --git a/t/t7001-mv.sh b/t/t7001-mv.sh
index e96cbdb105..cc3fd2baf2 100755
--- a/t/t7001-mv.sh
+++ b/t/t7001-mv.sh
@@ -495,7 +495,7 @@ test_expect_success 'moving a submodule in nested directories' '
 	test_cmp expect actual
 '
 
-test_expect_failure 'moving nested submodules' '
+test_expect_success 'moving nested submodules' '
 	git commit -am "cleanup commit" &&
 	mkdir sub_nested_nested &&
 	(cd sub_nested_nested &&
diff --git a/unpack-trees.c b/unpack-trees.c
index e73745051e..dec37ad1e7 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -290,7 +290,7 @@ static void load_gitmodules_file(struct index_state *index,
 		if (!state && ce->ce_flags & CE_WT_REMOVE) {
 			repo_read_gitmodules(the_repository);
 		} else if (state && (ce->ce_flags & CE_UPDATE)) {
-			submodule_free();
+			submodule_free(the_repository);
 			checkout_entry(ce, state, NULL);
 			repo_read_gitmodules(the_repository);
 		}