make a more advanced neovim config thats still relatively simple

nvim/init.lua

@@ -1,37 +1,82 @@
 vim.opt.number = true
 vim.opt.relativenumber = true
-vim.cmd 'colorscheme habamax'
-
 vim.opt.expandtab = true
 vim.opt.tabstop = 8
 vim.opt.softtabstop = 0
 vim.opt.shiftwidth = 4
 vim.opt.smarttab = true
 vim.opt.autoindent = true
+vim.opt.mouse = "a"
 
-vim.opt.mouse = 'a'
+vim.cmd("colorscheme habamax")
 
-vim.o.completeopt = "menuone,noinsert,noselect,preview"
+local servers = {
+    clangd = {}
+}
 
-vim.api.nvim_create_autocmd('FileType', {
-    pattern = 'c',
-    callback = function(args)
-        vim.lsp.start({
-            name = 'clangd',
-            cmd = {'clangd'},
-            root_dir = vim.fn.expand("."),
-        })
-    end,
-})
+local mini_path = vim.fn.stdpath("data") .. "/site/pack/deps/start/mini.nvim"
+if not vim.loop.fs_stat(mini_path) then
+    vim.fn.system({
+        "git", "clone", "--filter=blob:none",
+        "https://github.com/echasnovski/mini.nvim", mini_path
+    })
 
-vim.api.nvim_create_autocmd({"InsertCharPre"}, {
-    callback = function()
-        vim.lsp.buf.completion()
+    vim.cmd("packadd mini.nvim | helptags ALL")
+end
+
+require("mini.deps").setup({ path = { package = path_package } })
+
+local add, now, later = MiniDeps.add, MiniDeps.now, MiniDeps.later
+now(function()
+    add({
+        source = "neovim/nvim-lspconfig",
+    })
+
+    add({
+        source = "hrsh7th/nvim-cmp",
+        depends = { "hrsh7th/cmp-nvim-lsp" }
+    })
+end)
+
+local cmp = require("cmp")
+cmp.setup({
+    snippet = {
+        expand = function(args)
+            vim.snippet.expand(args.body)
+        end,
+    },
+    mapping = cmp.mapping.preset.insert({
+        ["<C-Space>"] = cmp.mapping.complete(),
+        ["<CR>"] = cmp.mapping.confirm({ select = true })
+    }),
+    sources = cmp.config.sources({
+        { name = "nvim_lsp" },
+    })
+}, {
+    { name = "buffer" },
+});
+
+local lspconfig = require("lspconfig")
+local capabilities = require("cmp_nvim_lsp").default_capabilities()
+for server in pairs(servers) do
+    local config = servers[server]
+    config.capabilities = config.capabilities or capabilities
+
+    lspconfig[server].setup(config)
+end
+
+vim.keymap.set({ 'i', 's' }, '<Tab>', function()
+    if vim.snippet.active({ direction = 1 }) then
+        return '<Cmd>lua vim.snippet.jump(1)<CR>'
+    else
+        return '<Tab>'
     end
-})
+end, { expr = true })
 
-vim.api.nvim_create_autocmd({"CursorMovedI"}, {
-    callback = function()
-        vim.lsp.buf.hover()
+vim.keymap.set({ 'i', 's' }, '<S-Tab>', function()
+    if vim.snippet.active({ direction = 1 }) then
+        return '<Cmd>lua vim.snippet.jump(-1)<CR>'
+    else
+        return '<Tab>'
     end
-})
+end, { expr = true })