index: allow add_bypath to update submodules Similarly to how git itself does it, allow the index update operation to stage a change in a submodule's HEAD.
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diff --git a/src/index.c b/src/index.c
index 5ce5522..501498e 100644
--- a/src/index.c
+++ b/src/index.c
@@ -1236,9 +1236,29 @@ int git_index_add_bypath(git_index *index, const char *path)
assert(index && path);
- if ((ret = index_entry_init(&entry, index, path)) < 0 ||
- (ret = index_insert(index, &entry, 1, false)) < 0)
+ if ((ret = index_entry_init(&entry, index, path)) == 0)
+ ret = index_insert(index, &entry, 1, false);
+
+ /* If we were given a directory, let's see if it's a submodule */
+ if (ret < 0 && ret != GIT_EDIRECTORY)
+ return ret;
+
+ if (ret == GIT_EDIRECTORY) {
+ git_submodule *sm;
+ git_error_state err;
+
+ giterr_capture(&err, ret);
+
+ ret = git_submodule_lookup(&sm, INDEX_OWNER(index), path);
+ if (ret == GIT_ENOTFOUND)
+ return giterr_restore(&err);
+ else
+ git__free(err.error_msg.message);
+
+ ret = git_submodule_add_to_index(sm, false);
+ git_submodule_free(sm);
return ret;
+ }
/* Adding implies conflict was resolved, move conflict entries to REUC */
if ((ret = index_conflict_to_reuc(index, path)) < 0 && ret != GIT_ENOTFOUND)
diff --git a/tests/index/bypath.c b/tests/index/bypath.c
index 08c9934..ddb766a 100644
--- a/tests/index/bypath.c
+++ b/tests/index/bypath.c
@@ -21,3 +21,15 @@ void test_index_bypath__add_directory(void)
{
cl_git_fail_with(GIT_EDIRECTORY, git_index_add_bypath(g_idx, "just_a_dir"));
}
+
+void test_index_bypath__add_submodule(void)
+{
+ unsigned int status;
+ const char *sm_name = "sm_changed_head";
+
+ cl_git_pass(git_submodule_status(&status, g_repo, sm_name, 0));
+ cl_assert_equal_i(GIT_SUBMODULE_STATUS_WD_MODIFIED, status & GIT_SUBMODULE_STATUS_WD_MODIFIED);
+ cl_git_pass(git_index_add_bypath(g_idx, sm_name));
+ cl_git_pass(git_submodule_status(&status, g_repo, sm_name, 0));
+ cl_assert_equal_i(0, status & GIT_SUBMODULE_STATUS_WD_MODIFIED);
+}