Added autocomplete, no LSP config, yet

init.vim

@@ -26,6 +26,19 @@ Plug 'jiangmiao/auto-pairs'
 Plug 'nvim-treesitter/nvim-treesitter', {'do': ':TSUpdate'}
 "shortcut to comment multiple lines"
 Plug 'numToStr/Comment.nvim'
+
+
+Plug 'neovim/nvim-lspconfig'
+Plug 'hrsh7th/cmp-nvim-lsp'
+Plug 'hrsh7th/cmp-buffer'
+Plug 'hrsh7th/cmp-path'
+Plug 'hrsh7th/cmp-cmdline'
+Plug 'hrsh7th/nvim-cmp'
+
+" For vsnip users.
+Plug 'hrsh7th/cmp-vsnip'
+Plug 'hrsh7th/vim-vsnip'
+
 call plug#end()
 
 let $NVIM_TUI_ENABLE_TRUE_COLOR=1
@@ -65,7 +78,7 @@ colorscheme sonokai
 lua << EOF
 require'nvim-treesitter.configs'.setup {
   -- Install parsers for languages you use
-  ensure_installed = { "c", "cpp", "python", "lua", "vim", "go", "html", "css", "javascript"},
+  ensure_installed = { "c", "cpp", "python", "lua", "vim", "go", "html", "css", "javascript", "ocaml"},
 
   -- Install all maintained parsers
   -- ensure_installed = "all",
@@ -95,3 +108,86 @@ require'nvim-treesitter.configs'.setup {
 
 require('Comment').setup()
 EOF
+
+
+lua <<EOF
+  -- Set up nvim-cmp.
+  local cmp = require'cmp'
+
+  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+)
+
+        -- 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' },
+    })
+  })
+
+  -- To use git you need to install the plugin petertriho/cmp-git and uncomment lines below
+  -- Set configuration for specific filetype.
+  --[[ cmp.setup.filetype('gitcommit', {
+    sources = cmp.config.sources({
+      { name = 'git' },
+    }, {
+      { name = 'buffer' },
+    })
+ })
+ require("cmp_git").setup() ]]--
+
+  -- Use buffer source for `/` and `?` (if you enabled `native_menu`, this won't work anymore).
+  cmp.setup.cmdline({ '/', '?' }, {
+    mapping = cmp.mapping.preset.cmdline(),
+    sources = {
+      { name = 'buffer' }
+    }
+  })
+
+  -- Use cmdline & path source for ':' (if you enabled `native_menu`, this won't work anymore).
+  cmp.setup.cmdline(':', {
+    mapping = cmp.mapping.preset.cmdline(),
+    sources = cmp.config.sources({
+      { name = 'path' }
+    }, {
+      { name = 'cmdline' }
+    }),
+    matching = { disallow_symbol_nonprefix_matching = false }
+  })
+
+  -- Set up lspconfig.
+  local capabilities = require('cmp_nvim_lsp').default_capabilities()
+  -- Replace <YOUR_LSP_SERVER> with each lsp server you've enabled.
+  vim.lsp.config('<YOUR_LSP_SERVER>', {
+    capabilities = capabilities
+  })
+  vim.lsp.enable('<YOUR_LSP_SERVER>')
+EOF