Install LSP functionality and implemented editor settings

nvim/after/plugin/lsp.lua

@@ -0,0 +1,67 @@
+local lsp = require("lsp-zero")
+
+lsp.preset("recommended")
+
+lsp.ensure_installed({
+  'tsserver',
+  'rust_analyzer',
+})
+
+-- Fix Undefined global 'vim'
+lsp.configure('lua-language-server', {
+    settings = {
+        Lua = {
+            diagnostics = {
+                globals = { 'vim' }
+            }
+        }
+    }
+})
+
+
+local cmp = require('cmp')
+local cmp_select = {behavior = cmp.SelectBehavior.Select}
+local cmp_mappings = lsp.defaults.cmp_mappings({
+  ['<C-p>'] = cmp.mapping.select_prev_item(cmp_select),
+  ['<C-n>'] = cmp.mapping.select_next_item(cmp_select),
+  ['<C-y>'] = cmp.mapping.confirm({ select = true }),
+  ["<C-Space>"] = cmp.mapping.complete(),
+})
+
+cmp_mappings['<Tab>'] = nil
+cmp_mappings['<S-Tab>'] = nil
+
+lsp.setup_nvim_cmp({
+  mapping = cmp_mappings
+})
+
+lsp.set_preferences({
+    suggest_lsp_servers = false,
+    sign_icons = {
+        error = 'E',
+        warn = 'W',
+        hint = 'H',
+        info = 'I'
+    }
+})
+
+lsp.on_attach(function(client, bufnr)
+  local opts = {buffer = bufnr, remap = false}
+
+  vim.keymap.set("n", "gd", function() vim.lsp.buf.definition() end, opts)
+  vim.keymap.set("n", "K", function() vim.lsp.buf.hover() end, opts)
+  vim.keymap.set("n", "<leader>vws", function() vim.lsp.buf.workspace_symbol() end, opts)
+  vim.keymap.set("n", "<leader>vd", function() vim.diagnostic.open_float() end, opts)
+  vim.keymap.set("n", "[d", function() vim.diagnostic.goto_next() end, opts)
+  vim.keymap.set("n", "]d", function() vim.diagnostic.goto_prev() end, opts)
+  vim.keymap.set("n", "<leader>vca", function() vim.lsp.buf.code_action() end, opts)
+  vim.keymap.set("n", "<leader>vrr", function() vim.lsp.buf.references() end, opts)
+  vim.keymap.set("n", "<leader>vrn", function() vim.lsp.buf.rename() end, opts)
+  vim.keymap.set("i", "<C-h>", function() vim.lsp.buf.signature_help() end, opts)
+end)
+
+lsp.setup()
+
+vim.diagnostic.config({
+    virtual_text = true
+})