refactor: use vim.diagnostic.config to set signs

Author: SystematicError

lua/icons.lua

@@ -1,10 +1,10 @@
 local icons = {}
 
 icons.diagnostics = {
-    Error = "",
-    Warn = "",
-    Hint = "󰌵",
-    Info = "",
+    [vim.diagnostic.severity.ERROR] = "",
+    [vim.diagnostic.severity.WARN] = "",
+    [vim.diagnostic.severity.INFO] = "",
+    [vim.diagnostic.severity.HINT] = "󰌵",
 }
 
 icons.kinds = {

lua/plugins/lspconfig.lua

@@ -9,16 +9,14 @@ local default_opts = {
         update_in_insert = false,
         virtual_text = true,
         severity_sort = true,
-        signs = true,
+        signs = { text = require("icons").diagnostics },
     },
 
     inlay_hints = true,
     codelens = true,
 }
 
 local function config(_, opts)
-    local diagnostic_icons = require("icons").diagnostics
-
     -- Server setup
     for server, server_opts in pairs(opts.servers) do
         vim.lsp.config(server, server_opts)
@@ -28,11 +26,6 @@ local function config(_, opts)
     -- Diagnostics
     vim.diagnostic.config(opts.diagnostics)
 
-    for name, icon in pairs(diagnostic_icons) do
-        local hl = "DiagnosticSign" .. name
-        vim.fn.sign_define(hl, { text = icon, texthl = hl, numhl = hl })
-    end
-
     -- Inlay hints
     vim.lsp.inlay_hint.enable(opts.inlay_hints)