Added completion

init.lua

@@ -2,3 +2,4 @@ require "options"
 require "keymaps"
 require "plugins"
 require "colorschema"
+require "completion"

lua/completion.lua

@@ -0,0 +1,75 @@
+-----------------------------------------------------------
+-- Autocomplete configuration file
+-----------------------------------------------------------
+
+-- Plugin: nvim-cmp
+-- url: https://github.com/hrsh7th/nvim-cmp
+
+
+local cmp_status_ok, cmp = pcall(require, 'cmp')
+if not cmp_status_ok then
+  return
+end
+
+local luasnip_status_ok, luasnip = pcall(require, 'luasnip')
+if not luasnip_status_ok then
+  return
+end
+
+cmp.setup {
+  -- Load snippet support
+  snippet = {
+    expand = function(args)
+      luasnip.lsp_expand(args.body)
+    end,
+  },
+
+-- Completion settings
+  completion = {
+    --completeopt = 'menu,menuone,noselect'
+    keyword_length = 2
+  },
+
+  -- Key mapping
+  mapping = {
+    ['<C-n>'] = cmp.mapping.select_next_item(),
+    ['<C-p>'] = cmp.mapping.select_prev_item(),
+    ['<C-d>'] = cmp.mapping.scroll_docs(-4),
+    ['<C-f>'] = cmp.mapping.scroll_docs(4),
+    ['<C-Space>'] = cmp.mapping.complete(),
+    ['<C-e>'] = cmp.mapping.close(),
+    ['<CR>'] = cmp.mapping.confirm {
+      behavior = cmp.ConfirmBehavior.Replace,
+      select = true,
+    },
+
+    -- Tab mapping
+    ['<Tab>'] = function(fallback)
+      if cmp.visible() then
+        cmp.select_next_item()
+      elseif luasnip.expand_or_jumpable() then
+        luasnip.expand_or_jump()
+      else
+        fallback()
+      end
+    end,
+    ['<S-Tab>'] = function(fallback)
+      if cmp.visible() then
+        cmp.select_prev_item()
+      elseif luasnip.jumpable(-1) then
+        luasnip.jump(-1)
+      else
+        fallback()
+      end
+    end
+  },
+
+  -- Load sources, see: https://github.com/topics/nvim-cmp
+  sources = {
+    { name = 'nvim_lsp' },
+    { name = 'luasnip' },
+    { name = 'path' },
+    { name = 'buffer' },
+  },
+}
+

lua/plugins.lua

@@ -48,6 +48,17 @@ return packer.startup(function(use)
   -- gruvbox colorscheme
   use 'ellisonleao/gruvbox.nvim'
 
+  -- Autocomplete
+  use {
+    'hrsh7th/nvim-cmp',
+    requires = {
+      'L3MON4D3/LuaSnip',
+      'hrsh7th/cmp-nvim-lsp',
+      'hrsh7th/cmp-path',
+      'hrsh7th/cmp-buffer',
+      'saadparwaiz1/cmp_luasnip',
+    },
+  }
   -- Automatically set up your configuration after cloning packer.nvim
   -- Put this at the end after all plugins
   if PACKER_BOOTSTRAP then