From 2660d9e7c4c8cd5a6fd5430809a80d17c460945a Mon Sep 17 00:00:00 2001
From: Daniel Lynn <daniel.eric.lynn@gmail.com>
Date: Wed, 13 Oct 2021 11:32:56 -0500
Subject: [PATCH] Add autocomplete support

---
 nvim/nvim-cmp.vimrc | 42 ++++++++++++++++++++++++++++++++++++++++++
 nvim/plugins.vimrc  |  9 ++++++++-
 vimrc               |  6 ++++++
 3 files changed, 56 insertions(+), 1 deletion(-)
 create mode 100644 nvim/nvim-cmp.vimrc

diff --git a/nvim/nvim-cmp.vimrc b/nvim/nvim-cmp.vimrc
new file mode 100644
index 0000000..210a9da
--- /dev/null
+++ b/nvim/nvim-cmp.vimrc
@@ -0,0 +1,42 @@
+set completeopt=menu,menuone,noselect
+
+lua <<EOF
+  -- Setup nvim-cmp.
+  local cmp = require'cmp'
+
+  cmp.setup({
+    snippet = {
+      expand = function(args)
+        -- For `vsnip` user.
+        vim.fn["vsnip#anonymous"](args.body)
+
+        -- For `luasnip` user.
+        -- require('luasnip').lsp_expand(args.body)
+
+        -- For `ultisnips` user.
+        -- vim.fn["UltiSnips#Anon"](args.body)
+      end,
+    },
+    mapping = {
+      ['<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({ select = true }),
+    },
+    sources = {
+      { name = 'nvim_lsp' },
+
+      -- For vsnip user.
+      { name = 'vsnip' },
+
+      -- For luasnip user.
+      -- { name = 'luasnip' },
+
+      -- For ultisnips user.
+      -- { name = 'ultisnips' },
+
+      { name = 'buffer' },
+    }
+  })
+EOF
diff --git a/nvim/plugins.vimrc b/nvim/plugins.vimrc
index e08550e..36d3979 100644
--- a/nvim/plugins.vimrc
+++ b/nvim/plugins.vimrc
@@ -5,7 +5,6 @@ Plug 'jiangmiao/auto-pairs'
 Plug 'leafgarland/typescript-vim', { 'for': 'typescript' }
 Plug 'leafoftree/vim-svelte-plugin', { 'for': 'svelte' }
 Plug 'lukas-reineke/indent-blankline.nvim'
-Plug 'neovim/nvim-lspconfig'
 Plug 'nvim-treesitter/nvim-treesitter', {'do': ':TSUpdate'}
 Plug 'posva/vim-vue', { 'for': 'vue' }
 Plug 'ron-rs/ron.vim', { 'for': 'ron' }
@@ -18,6 +17,14 @@ Plug 'tpope/vim-surround'
 Plug 'vim-test/vim-test'
 Plug 'wakatime/vim-wakatime'
 
+" LSP and autocomplete
+Plug 'neovim/nvim-lspconfig' |
+  \ Plug 'hrsh7th/cmp-nvim-lsp' |
+  \ Plug 'hrsh7th/cmp-buffer' |
+  \ Plug 'hrsh7th/nvim-cmp' |
+  \ Plug 'hrsh7th/cmp-vsnip' |
+  \ Plug 'hrsh7th/vim-vsnip'
+
 " Lightline
 Plug 'itchyny/lightline.vim' |
   \ Plug 'albertomontesg/lightline-asyncrun' |
diff --git a/vimrc b/vimrc
index 22ba83f..eedf8d2 100644
--- a/vimrc
+++ b/vimrc
@@ -68,6 +68,12 @@ if filereadable(expand("~/.config/nvim/plugins.vimrc"))
 endif
 call plug#end()
 
+" Autocomplete
+if filereadable(expand("~/.config/nvim/nvim-cmp.vimrc"))
+  source ~/.config/nvim/nvim-cmp.vimrc
+endif
+
+" LSP
 if filereadable(expand("~/.config/nvim/lspconfig.vimrc"))
   source ~/.config/nvim/lspconfig.vimrc
 endif