perf: add test for writing the index

diff --git a/submodule-config.h b/submodule-config.h
index 5f52e6567b7064bbf197f1ac8edcfde0154c9714..4ffa2fa840a5fc27ac209a2e976b118b15b124ef 100644 (file)
--- a/submodule-config.h
+++ b/submodule-config.h
@@ -28,6 +28,9 @@ struct repository;
 extern void submodule_cache_free(struct submodule_cache *cache);
 
 extern int parse_fetch_recurse_submodules_arg(const char *opt, const char *arg);
+struct option;
+extern int option_fetch_parse_recurse_submodules(const struct option *opt,
+                                                const char *arg, int unset);
 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 int parse_submodule_config_option(const char *var, const char *value);