feat(nvim): Configure completion

.config/nvim/lua/plugins/nvim-cmp.lua

@@ -1,8 +1,47 @@
 return {
     "nvim-cmp",
-    opts = function(_, opts)
-        opts.completion = {
-            autocomplete = false,
+    opts = function()
+        vim.api.nvim_set_hl(0, "CmpGhostText", { link = "Comment", default = true })
+        local cmp = require("cmp")
+        local defaults = require("cmp.config.default")()
+        local auto_select = true
+        return {
+            auto_brackets = {}, -- configure any filetype to auto add brackets
+            completion = {
+                completeopt = "menu,menuone,noinsert" .. (auto_select and "" or ",noselect"),
+            },
+            preselect = auto_select and cmp.PreselectMode.Item or cmp.PreselectMode.None,
+            mapping = cmp.mapping.preset.insert({
+                ["<C-Space>"] = LazyVim.cmp.confirm({ select = true }),
+            }),
+            sources = cmp.config.sources({
+                { name = "nvim_lsp" },
+                { name = "path" },
+            }, {
+                { name = "buffer" },
+            }),
+            formatting = {
+                format = function(entry, item)
+                    local icons = LazyVim.config.icons.kinds
+                    if icons[item.kind] then
+                        item.kind = icons[item.kind] .. item.kind
+                    end
+
+                    local widths = {
+                        abbr = vim.g.cmp_widths and vim.g.cmp_widths.abbr or 40,
+                        menu = vim.g.cmp_widths and vim.g.cmp_widths.menu or 30,
+                    }
+
+                    for key, width in pairs(widths) do
+                        if item[key] and vim.fn.strdisplaywidth(item[key]) > width then
+                            item[key] = vim.fn.strcharpart(item[key], 0, width - 1) .. "…"
+                        end
+                    end
+
+                    return item
+                end,
+            },
+            sorting = defaults.sorting,
         }
     end,
 }