deprecated function

lua/config/options.lua

@@ -109,14 +109,36 @@ opt.foldexpr = 'nvim_treesitter#foldexpr()'
 opt.foldexpr = 'nvim_treesitter#foldexpr()'
 
 vim.diagnostic.config({
-  virtual_text = false,
-  signs = true,
-  float = {
-    border = 'single',
-    format = function(diagnostic)
-      return string.format('%s (%s) [%s]', diagnostic.message, diagnostic.source, diagnostic.code or diagnostic.user_data.lsp.code)
-    end,
+  signs = {
+    text = {
+      [vim.diagnostic.severity.ERROR] = '', -- Nerd Font Error Icon
+      [vim.diagnostic.severity.WARN]  = '', -- Nerd Font Warning Icon
+      [vim.diagnostic.severity.INFO]  = '', -- Nerd Font Info Icon
+      [vim.diagnostic.severity.HINT]  = '', -- Nerd Font Hint Icon (example)
+    },
+    -- Define the highlight group to use for the sign text for each severity
+    texthl = {
+      [vim.diagnostic.severity.ERROR] = 'DiagnosticSignError',
+      [vim.diagnostic.severity.WARN]  = 'DiagnosticSignWarn',
+      [vim.diagnostic.severity.INFO]  = 'DiagnosticSignInfo',
+      [vim.diagnostic.severity.HINT]  = 'DiagnosticSignHint',
+    },
+    -- Optional: Highlight the line number column
+    numhl = {
+      [vim.diagnostic.severity.ERROR] = 'DiagnosticLineNrError',
+      -- Add others for WARN, INFO, HINT if desired
+    },
+    -- Optional: Highlight the whole line
+    linehl = {
+      -- Define highlight groups like 'DiagnosticLineError', 'DiagnosticLineWarn', etc.
+      [vim.diagnostic.severity.ERROR] = 'DiagnosticLineError',
+    },
   },
+  -- Other diagnostic configurations (optional examples)
+  virtual_text = false,         -- Disable virtual text (inline messages)
+  underline = true,             -- Enable underlining diagnostics
+  update_in_insert = false,     -- Don't update diagnostics in insert mode
+  severity_sort = true,         -- Sort diagnostics by severity
 })
 
 -- Window border for floating windows