Update init.vim

Add LSP autocompletion and other stuff.

nvim/.config/nvim/init.vim

@@ -12,12 +12,92 @@ Plug 'mengelbrecht/lightline-bufferline'
 Plug 'kyazdani42/nvim-web-devicons'
 Plug 'sheerun/vim-polyglot'
 Plug 'neovim/nvim-lspconfig'
+Plug 'williamboman/nvim-lsp-installer'
+Plug 'hrsh7th/cmp-nvim-lsp'
+Plug 'hrsh7th/cmp-buffer'
+Plug 'hrsh7th/cmp-path'
+Plug 'hrsh7th/cmp-cmdline'
+Plug 'hrsh7th/nvim-cmp'
+Plug 'hrsh7th/cmp-vsnip'
+Plug 'hrsh7th/vim-vsnip'
 
 call plug#end()
 
 
 """ LSP SETTINGS
-lua require'lspconfig'.bashls.setup{}
+lua << EOF
+    local lsp_installer = require("nvim-lsp-installer")
+
+    -- Register a handler that will be called for all installed servers.
+    -- Alternatively, you may also register handlers on specific server instances instead (see example below).
+    lsp_installer.on_server_ready(function(server)
+        local opts = {}
+
+        -- (optional) Customize the options passed to the server
+        -- if server.name == "tsserver" then
+        --     opts.root_dir = function() ... end
+        -- end
+
+        -- This setup() function is exactly the same as lspconfig's setup function.
+        -- Refer to https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md
+        server:setup(opts)
+    end)
+
+    -- Setup 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.
+                -- vim.fn["UltiSnips#Anon"](args.body) -- For `ultisnips` users.
+                -- require'snippy'.expand_snippet(args.body) -- For `snippy` users.
+            end,
+        },
+        mapping = {
+            ['<C-b>'] = cmp.mapping(cmp.mapping.scroll_docs(-4), { 'i', 'c' }),
+            ['<C-f>'] = cmp.mapping(cmp.mapping.scroll_docs(4), { 'i', 'c' }),
+            ['<C-Space>'] = cmp.mapping(cmp.mapping.complete(), { 'i', 'c' }),
+            ['<C-y>'] = cmp.config.disable, -- Specify `cmp.config.disable` if you want to remove the default `<C-y>` mapping.
+            ['<C-e>'] = cmp.mapping({
+                i = cmp.mapping.abort(),
+                c = cmp.mapping.close(),
+            }),
+            ['<CR>'] = cmp.mapping.confirm({ select = true }),
+        },
+        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' },
+        })
+    })
+
+    -- Use buffer source for `/` (if you enabled `native_menu`, this won't work anymore).
+    cmp.setup.cmdline('/', {
+        sources = {
+            { name = 'buffer' }
+        }
+    })
+
+    -- Use cmdline & path source for ':' (if you enabled `native_menu`, this won't work anymore).
+    cmp.setup.cmdline(':', {
+        sources = cmp.config.sources({
+            { name = 'path' }
+        }, {
+            { name = 'cmdline' }
+        })
+    })
+EOF
+
+
+
+setl omnifunc=v:lua.vim.lsp.omnifunc
 
 """ BASIC SETTINGS
 
@@ -61,6 +141,7 @@ let g:lightline.component_type = { 'buffers': 'tabsel' }
 " lightline-bufferline config
 let g:lightline#bufferline#show_number = 1
 let g:lightline#bufferline#shorten_path = 0
+let g:lightline#bufferline#smart_path = 0
 let g:lightline#bufferline#enable_devicons = 1
 let g:lightline#bufferline#unnamed = '[No Name]'
 let g:lightline#bufferline#icon_position = 'right'
@@ -94,4 +175,3 @@ nmap <Leader>d7 <Plug>lightline#bufferline#delete(7)
 nmap <Leader>d8 <Plug>lightline#bufferline#delete(8)
 nmap <Leader>d9 <Plug>lightline#bufferline#delete(9)
 nmap <Leader>d0 <Plug>lightline#bufferline#delete(10)
-