perf(ui_client): skip some initialization not necessary for ui client

In particular, TUI manages its own screen buffers and highlight table, so we don't need
to run init_highlight() and default_grid_alloc() in the ui client process.

1 files changed, 6 insertions, 6 deletions

diff --git a/src/nvim/main.c b/src/nvim/main.c
index 608684bd36..e2a3d32984 100644
--- a/src/nvim/main.c
+++ b/src/nvim/main.c
@@ -355,6 +355,12 @@ int main(int argc, char **argv)
     ui_client_channel_id = rv;
   }
 
+  if (ui_client_channel_id) {
+    time_finish();
+    ui_client_run(remote_ui);  // NORETURN
+  }
+  assert(!ui_client_channel_id && !use_builtin_ui);
+
   TIME_MSG("expanding arguments");
 
   if (params.diff_mode && params.window_count == -1) {
@@ -397,12 +403,6 @@ int main(int argc, char **argv)
     input_start();
   }
 
-  if (ui_client_channel_id) {
-    time_finish();
-    ui_client_run(remote_ui);  // NORETURN
-  }
-  assert(!ui_client_channel_id && !use_builtin_ui);
-
   // Wait for UIs to set up Nvim or show early messages
   // and prompts (--cmd, swapfile dialog, …).
   bool use_remote_ui = (embedded_mode && !headless_mode);