Update LSP config

after/plugin/lsp.lua

@@ -1,15 +1,42 @@
-local lsp_zero = require('lsp-zero')
+  -- Set up nvim-cmp.
+  local cmp = require'cmp'
 
-lsp_zero.on_attach(function(client, bufnr)
-    -- see :help lsp-zero-keybindings
-    -- to learn the available actions
-    lsp_zero.default_keymaps({buffer = bufnr})
-end)
+  cmp.setup({
+    snippet = {
+      -- REQUIRED - you must specify a snippet engine
+      expand = function(args)
+        vim.fn["vsnip#anonymous"](args.body) -- For `vsnip` users.
+        -- require('luasnip').lsp_expand(args.body) -- For `luasnip` users.
+        -- require('snippy').expand_snippet(args.body) -- For `snippy` users.
+        -- vim.fn["UltiSnips#Anon"](args.body) -- For `ultisnips` users.
+        -- vim.snippet.expand(args.body) -- For native neovim snippets (Neovim v0.10+)
 
-require('mason').setup({})
-require('mason-lspconfig').setup({
-    ensure_installed = {},
-    handlers = {
-        lsp_zero.default_setup,
+        -- For `mini.snippets` users:
+        -- local insert = MiniSnippets.config.expand.insert or MiniSnippets.default_insert
+        -- insert({ body = args.body }) -- Insert at cursor
+        -- cmp.resubscribe({ "TextChangedI", "TextChangedP" })
+        -- require("cmp.config").set_onetime({ sources = {} })
+      end,
     },
-})
+    window = {
+      -- completion = cmp.config.window.bordered(),
+      -- documentation = cmp.config.window.bordered(),
+    },
+    mapping = cmp.mapping.preset.insert({
+      ['<C-b>'] = cmp.mapping.scroll_docs(-4),
+      ['<C-f>'] = cmp.mapping.scroll_docs(4),
+      ['<C-Space>'] = cmp.mapping.complete(),
+      ['<C-e>'] = cmp.mapping.abort(),
+      ['<CR>'] = cmp.mapping.confirm({ select = true }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
+    }),
+    sources = cmp.config.sources({
+      { name = 'nvim_lsp' },
+      { name = 'vsnip' }, -- For vsnip users.
+      -- { name = 'luasnip' }, -- For luasnip users.
+      -- { name = 'ultisnips' }, -- For ultisnips users.
+      -- { name = 'snippy' }, -- For snippy users.
+    }, {
+      { name = 'buffer' },
+    })
+  })
+