Added in shallow cloning.

1 files changed, 4 insertions, 1 deletions

diff --git a/src/lpm.c b/src/lpm.c
index 1f11127..448b5e4 100644
--- a/src/lpm.c
+++ b/src/lpm.c
@@ -425,14 +425,17 @@ static int lpm_fetch(lua_State* L) {
     git_repository_free(repository);
     return luaL_error(L, "git remote fetch error: %s", git_error_last_string());
   }
+  const char* refspec = lua_gettop(L) >= 3 ? luaL_checkstring(L, 3) : NULL;
   git_fetch_options fetch_opts = GIT_FETCH_OPTIONS_INIT;
   fetch_opts.download_tags = GIT_REMOTE_DOWNLOAD_TAGS_ALL;
   fetch_opts.callbacks.payload = L;
+  fetch_opts.depth = 1;
   if (no_verify_ssl)
     fetch_opts.callbacks.certificate_check = lpm_git_transport_certificate_check_cb;
   if (lua_type(L, 2) == LUA_TFUNCTION)
     fetch_opts.callbacks.transfer_progress = lpm_git_transfer_progress_cb;
-  if (git_remote_fetch(remote, NULL, &fetch_opts, NULL)) {
+  git_strarray array = { &refspec, 1 };
+  if (git_remote_fetch(remote, refspec ? &array : NULL, &fetch_opts, NULL)) {
     git_remote_free(remote);
     git_repository_free(repository);
     return luaL_error(L, "git remote fetch error: %s", git_error_last_string());