Check EmmyLua binary path is a file

Author: 0x2CA

src/emmylua.rs

@@ -17,7 +17,9 @@ impl EmmyLuaExtension {
         if let Ok(lsp_settings) = zed::settings::LspSettings::for_worktree("emmylua", worktree) {
             if let Some(binary) = lsp_settings.binary {
                 if let Some(path) = binary.path {
-                    return Ok(path);
+                    if fs::metadata(&path).map_or(false, |m| m.is_file()) {
+                        return Ok(path);
+                    }
                 }
             }
         }