My custom kickstart.nvim setup

lua/custom/plugins/completion.lua

@@ -0,0 +1,67 @@
+-- ~/.config/nvim/lua/custom/plugins/completion.lua
+
+return {
+  -- Completion framework
+  {
+    'hrsh7th/nvim-cmp',
+    event = 'InsertEnter',
+    config = function()
+      local cmp = require 'cmp'
+      cmp.setup {
+        snippet = {
+          expand = function(args)
+            vim.fn['vsnip#anonymous'](args.body)
+          end,
+        },
+        mapping = cmp.mapping.preset.insert {
+          ['<C-p>'] = cmp.mapping.select_prev_item(),
+          ['<C-n>'] = cmp.mapping.select_next_item(),
+          ['<C-d>'] = 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 },
+          ['<Tab>'] = cmp.mapping(function(fallback)
+            if cmp.visible() then
+              cmp.select_next_item()
+            elseif vim.fn == 1 then
+              vim.fn.feedkeys(vim.api.nvim_replace_termcodes('<Plug>(vsnip-expand-or-jump)', true, true, true), '')
+            else
+              fallback()
+            end
+          end, { 'i', 's' }),
+          ['<S-Tab>'] = cmp.mapping(function(fallback)
+            if cmp.visible() then
+              cmp.select_prev_item()
+            elseif vim.fn['vsnip#jumpable'](-1) == 1 then
+              vim.fn.feedkeys(vim.api.nvim_replace_termcodes('<Plug>(vsnip-jump-prev)', true, true, true), '')
+            else
+              fallback()
+            end
+          end, { 'i', 's' }),
+        },
+        sources = cmp.config.sources({
+          { name = 'nvim_lsp' },
+          { name = 'vsnip' },
+        }, {
+          { name = 'buffer' },
+        }),
+      }
+    end,
+  },
+
+  -- LSP completion source
+  { 'hrsh7th/cmp-nvim-lsp', after = 'nvim-cmp' },
+
+  -- Buffer completion source
+  { 'hrsh7th/cmp-buffer', after = 'nvim-cmp' },
+
+  -- Path completion source
+  { 'hrsh7th/cmp-path', after = 'nvim-cmp' },
+
+  -- Snippet completion source
+  { 'hrsh7th/cmp-vsnip', after = 'nvim-cmp' },
+
+  -- Snippet engine
+  { 'hrsh7th/vim-vsnip', event = 'InsertEnter' },
+}