nvim: always show sign column, show diff in statusline

.config/nvim/lua/my/settings.lua

@@ -26,6 +26,7 @@ local options = {
     shada = [['1000,<50,s10,h]],            -- save last 1000 files
     title = true,                           -- set terminal title
     spelllang = 'en',                       -- words from all regions
+    signcolumn = 'yes'                      -- always show sign column
 }
 for k, v in pairs(options) do
     vim.o[k] = v

.config/nvim/lua/my/tools.lua

@@ -88,6 +88,7 @@ require('lualine').setup({
         lualine_a = { { 'mode' } },
         lualine_b = {
             { 'branch', icons_enabled = true },
+            { 'diff' },
             { 'require("my.functions").lsp_status()', padding = 0 },
             { 'diagnostics' }
         },