statusline/lualine: rewrite LSP client component

modules/plugins/statusline/lualine/lualine.nix

@@ -239,35 +239,26 @@ in {
             {
               -- Lsp server name
               function()
-                local buf_ft = vim.api.nvim_get_option_value('filetype', {})
+                local buf_ft = vim.bo.filetype
+                local excluded_buf_ft = { toggleterm = true, NvimTree = true, ["neo-tree"] = true, TelescopePrompt = true }
 
-                -- List of buffer types to exclude
+                if excluded_buf_ft[buf_ft] then
-                local excluded_buf_ft = {"toggleterm", "NvimTree", "neo-tree", "TelescopePrompt"}
+                  return ""
-
-                -- Check if the current buffer type is in the excluded list
-                for _, excluded_type in ipairs(excluded_buf_ft) do
-                  if buf_ft == excluded_type then
-                    return ""
                   end
+
+                local bufnr = vim.api.nvim_get_current_buf()
+                local clients = vim.lsp.get_clients({ bufnr = bufnr })
+
+                if vim.tbl_isempty(clients) then
+                  return "No Active LSP"
                 end
 
-                -- Get the name of the LSP server active in the current buffer
+                local active_clients = {}
-                local clients = vim.lsp.get_active_clients()
-                local msg = 'No Active Lsp'
-
-                -- if no lsp client is attached then return the msg
-                if next(clients) == nil then
-                  return msg
-                end
-
                 for _, client in ipairs(clients) do
-                  local filetypes = client.config.filetypes
+                  table.insert(active_clients, client.name)
-                  if filetypes and vim.fn.index(filetypes, buf_ft) ~= -1 then
-                    return client.name
-                  end
                 end
 
-                return msg
+                return table.concat(active_clients, ", ")
               end,
               icon = ' ',
               separator = {left = ''},