Add diagnostic settings

users/jalr/modules/neovim/default.nix

@@ -50,6 +50,8 @@ in
       sign define LspDiagnosticsSignInformation text=🟣
       sign define LspDiagnosticsSignHint text=🟢
 
+      nnoremap <silent> de    <cmd>lua vim.diagnostic.enable(not vim.diagnostic.is_enabled())<CR>
+      nnoremap <silent> di    <cmd>lua vim.diagnostic.open_float()<CR>
       nnoremap <silent> gd    <cmd>lua vim.lsp.buf.definition()<CR>
       nnoremap <silent> gi    <cmd>lua vim.lsp.buf.implementation()<CR>
       nnoremap <silent> gr    <cmd>lua vim.lsp.buf.references()<CR>
@@ -162,6 +164,9 @@ in
           -- this configuration applies to workstations only
           -- https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md
           local lsp = require('lspconfig')
+
+          -- show linter messages
+          vim.diagnostic.config({ virtual_text = true })
         '' +
         builtins.concatStringsSep "\n" (
           lib.mapAttrsToList