Show diagnostics in status line and file tree

config/nvim/lua/user/file-tree.lua

@@ -48,6 +48,11 @@ require("nvim-tree").setup({
   git = {
     ignore = false,
   },
+  diagnostics = {
+    enable = true,
+    show_on_dirs = true,
+    icons = { hint = "", info = "", warning = "", error = "" },
+  },
 })
 
 nmap("<leader>b", ":NvimTreeToggle<CR>")

config/nvim/lua/user/lsp.lua

@@ -170,10 +170,9 @@ lsp_installer.on_server_ready(function(server)
   server:setup(opts)
 end)
 
--- Don't show diagnostics as virtual text
 vim.lsp.handlers["textDocument/publishDiagnostics"] = vim.lsp.with(vim.lsp.diagnostic.on_publish_diagnostics, {
   update_in_insert = true,
-  virtual_text = false,
+  virtual_text = true,
   signs = false,
 })
 

config/nvim/lua/user/lualine.lua

@@ -11,6 +11,11 @@ local branch = {
   icons_enabled = true,
   icon = "",
 }
+local diagnostics = {
+  "diagnostics",
+  always_visible = true,
+  sections = { "error", "warn" },
+}
 
 -- Section "c"
 local filename = {
@@ -47,9 +52,9 @@ lualine.setup({
   sections = {
     lualine_a = { mode },
     lualine_b = { branch },
-    lualine_c = { filename, fileformat },
-    lualine_x = { location },
-    lualine_y = { encoding, filetype },
+    lualine_c = { diagnostics, filename, fileformat },
+    lualine_x = { location, encoding, filetype },
+    lualine_y = {},
     lualine_z = {},
   },
 })