Update vimrc

.config/nvim/init.vim

@@ -1,22 +1,63 @@
-if ! filereadable(system('echo -n "${XDG_CONFIG_HOME:-$HOME/.config}/nvim/autoload/plug.vim"'))
-	silent !mkdir -p ${XDG_CONFIG_HOME:-$HOME/.config}/nvim/autoload/
-	silent !curl "https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim" > ${XDG_CONFIG_HOME:-$HOME/.config}/nvim/autoload/plug.vim
-	autocmd VimEnter * PlugInstall
+set breakindent
+set clipboard=unnamedplus
+set encoding=utf-8
+set expandtab
+set hidden
+set ignorecase
+set nocompatible
+set nohlsearch
+set noshowmode
+set relativenumber
+set shiftwidth=2
+set smartcase
+set smarttab
+set softtabstop=2
+set synmaxcol=150
+set tabstop=4
+set undofile
+set wildmenu
+
+filetype plugin on
+scriptencoding utf-8
+syntax on
+
+" General key mappings
+    map <Up> <Nop>
+    map <Down> <Nop>
+    map <Left> <Nop>
+    map <Right> <Nop>
+
+    no <C-k> <C-w>k
+    no <C-j> <C-w>j
+    no <C-h> <C-w>h
+    no <C-l> <C-w>l
+
+    no ; :
+
+augroup General
+    au!
+    autocmd FileType * setlocal formatoptions-=c formatoptions-=r formatoptions-=o
+augroup END
+
+if empty(glob($XDG_CONFIG_HOME . '/nvim/autoload/plug.vim'))
+    silent !curl -fLo $XDG_CONFIG_HOME/nvim/autoload/plug.vim --create-dirs
+        \ https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
+
+    augroup Plug
+        au!
+        autocmd VimEnter * PlugInstall
+    augroup END
 endif
 
-call plug#begin(system('echo -n "$XDG_DATA_HOME:-$HOME/.local/share}/nvim/plugged"'))
+call plug#begin($XDG_DATA_HOME . '/nvim/plugged')
+
+Plug 'itchyny/lightline.vim'
+Plug 'mbbill/undotree'
+    nn <silent> <Leader>u :UndotreeToggle <BAR> :UndotreeFocus<CR>
+
+Plug 'sheerun/vim-polyglot'
+Plug 'tpope/vim-commentary'
+Plug 'tpope/vim-fugitive'
+Plug 'tpope/vim-surround'
 
 call plug#end()
-
-" Basics
-	set nocompatible
-	filetype plugin on
-	syntax on
-	set encoding=utf-8
-	set number relativenumber
-	set nohlsearch
-" Disable automatic commenting on newline
-	autocmd FileType * setlocal formatoptions-=c formatoptions-=r formatoptions-=o
-" Open split at bottom and right
-	set splitbelow splitright
-