nvim: add config files

nvim/lua/config/lsp.lua

@@ -0,0 +1,43 @@
+function show_diagnostic()
+	for _, winid in pairs(vim.api.nvim_tabpage_list_wins(0)) do
+      if vim.api.nvim_win_get_config(winid).zindex then
+        return
+      end
+    end
+    -- THIS IS FOR BUILTIN LSP
+    vim.diagnostic.open_float(0, {
+      scope = "cursor",
+      focusable = false,
+      close_events = {
+        "CursorMoved",
+        "CursorMovedI",
+        "BufHidden",
+        "InsertCharPre",
+        "WinLeave",
+      },
+    })
+end
+
+vim.api.nvim_create_autocmd("LspAttach", {
+	group = vim.api.nvim_create_augroup("lsp", { clear = true }),
+	callback = function (args)
+		vim.api.nvim_create_autocmd("BufWritePre", {
+			buffer = args.buf,
+			callback = function ()
+				vim.lsp.buf.format { async = false, id = args.data.client_id }
+			end,
+		})
+
+		vim.api.nvim_create_autocmd("CursorHold", {
+			pattern = '*',
+			callback = show_diagnostic
+		})
+	end
+})
+
+vim.lsp.enable('clangd')
+
+local capabilities = require('cmp_nvim_lsp').default_capabilities()
+vim.lsp.config('clangd', {
+	capabilities = capabilities
+})