a bit sloppy but working

lua/config/cmp.lua

@@ -0,0 +1,77 @@
+-- Setup nvim-cmp.
+local cmp = require("cmp")
+local lspkind = require("lspkind")
+
+cmp.setup({
+	formatting = {
+		format = lspkind.cmp_format({
+			with_text = false,
+			maxwidth = 50,
+			mode = "symbol",
+			menu = {
+				buffer = "BUF",
+				rg = "RG",
+				nvim_lsp = "LSP",
+				path = "PATH",
+				luasnip = "SNIP",
+				calc = "CALC",
+				spell = "SPELL",
+			},
+		}),
+	},
+	snippet = {
+		expand = function(args)
+			require("luasnip").lsp_expand(args.body)
+		end,
+	},
+	mapping = {
+		["<C-d>"] = cmp.mapping.scroll_docs(-4),
+		["<C-u>"] = cmp.mapping.scroll_docs(4),
+		["<C-Space>"] = cmp.mapping.complete(),
+		["<C-e>"] = cmp.mapping.close(),
+		["<CR>"] = cmp.mapping.confirm({
+			behavior = cmp.ConfirmBehavior.Replace,
+			select = false,
+		}),
+		["<Tab>"] = cmp.mapping(function(fallback)
+			if cmp.visible() then
+				cmp.select_next_item()
+			else
+				fallback()
+			end
+		end, { "i", "s" }),
+		["<S-Tab>"] = cmp.mapping(function()
+			if cmp.visible() then
+				cmp.select_prev_item()
+			end
+		end, { "i", "s" }),
+	},
+	sources = {
+		{ name = "nvim_lsp" },
+		{ name = "nvim_lsp_signature_help" },
+		{ name = "buffer", keyword_length = 5 },
+		{ name = "luasnip" },
+		{ name = "calc" },
+		{ name = "spell", keyword_length = 5 },
+		{ name = "path" },
+		{ name = "rg", keyword_length = 5 },
+	},
+})
+
+-- Use buffer source for `/` (if you enabled `native_menu`, this won't work anymore).
+cmp.setup.cmdline("/", {
+	mapping = cmp.mapping.preset.cmdline(),
+	sources = {
+		{ name = "buffer" },
+	},
+})
+
+-- Use cmdline & path source for ':' (if you enabled `native_menu`, this won't work anymore).
+cmp.setup.cmdline(":", {
+	mapping = cmp.mapping.preset.cmdline(),
+	sources = cmp.config.sources({
+		{ name = "path" },
+	}, {
+		{ name = "cmdline" },
+	}),
+})