Config file for my vim

.vimrc

set nocompatible		" Make vim behave more usefule way
so ~/.vim/plugins.vim   " Manage plugins by vundle

"-------------- Indentation ------------
set tabstop=4			" Number of space per tab
set shiftwidth=4		" Indent 4 columns for << and >> operations
set expandtab			" Replace tab with space
set autoindent			" Indent at the same level of the previous line

"-------------- Searching --------------
set hlsearch                " Highlight search result
set incsearch               " Search as characters in real time

"-------------- Mappings --------------
let mapleader=','           " Change leader to comma
" Turn off search highlight
nnoremap <leader><space> :noh<CR>
" Shortcut to open vimrc file quickly
nmap <leader>ev :tabedit ~/.vimrc <CR>
nmap <D-1> :tabn1<CR>
nmap <D-2> :tabn2<CR>
nmap <D-3> :tabn3<CR>
nmap <D-4> :tabn4<CR>
nmap <D-5> :tabn5<CR>
nmap <D-6> :tabn6<CR>
" Switch to alternatvie file quickly with ctrl+e
map <C-e> <C-^>
" Mover cursor among windows by ctrl + hjkl
nmap <C-h> <C-w><C-h>
nmap <C-j> <C-w><C-j>
nmap <C-k> <C-w><C-k>
nmap <C-l> <C-w><C-l>
" Toggle NERDTree sidebar
nmap <C-n> :NERDTreeToggle<CR>

" List all tags in the current buffer
nnoremap <C-r> :CtrlPBufTag<CR>
" Switch to MRU files quickly
nnoremap <D-e> :CtrlPMRUFiles<CR>
" Jump to a tag quickly
nmap <leader>f :tag<space>

"-------------------- Plugins --------------------
" CtrlP {
let g:ctrlp_custom_ignore='node_modules\DS_Store\.git'
let g:ctrlp_match_window='top,order:ttb,min:1,max:15,resutls:15'
" }

" Greplace {
set grepprg=ag

let g:grep_cmd_opts = '--line-numbers --noheading'
" }

"--------------------Autocmd--------------------
augroup autosourcing
    " Clear all autocmds in this group
    autocmd!
    " Refresh vimrc automatically after changing setting
    autocmd BufWritePost .vimrc so %
augroup END

"-------------- Themes and color --------------
set t_CO=256			" Number of colors in terminal
colorscheme atom-dark-256	" My Vim TUI color scheme
syntax on			" Enable syntax highlighting

"--------------------UI tweaks--------------------
set guifont=Fira_Code:h18       " Monospaced font with programming ligatures
set guioptions-=e               " Hide the native bar
if has("gui_running")
    set macligatures
endif
set linespace=16		" Set the line height
set number			" Show line numbers
set cursorline			" Highlight current line
filetype indent on		" Load filetype-specific indent files
set noerrorbells		" Disable bell for errors that display messages
set guioptions-=l		" Hide left scroll bar
set guioptions-=L		" Hide left scroll bar in splitted window
set guioptions-=r		" Hide right hand scroll bar
set guioptions-=R		" Hide right hand scroll bar in splitted window
set showmatch			" Highlight matching {[()]} automatically
set wildmenu			" Visualize autocomplete menu for command
set scrolljump=5		" Lines to scroll when cursor leaves screen
set scrolloff=3			" Minium lines to keep above and below the cursor
set laststatus=2		" Always display status line
set ruler			    " Display the line and column of the cursor in status bar
set splitbelow          " Split the window below the current
set splitright          " Split the window at right of the current
set autowriteall        " Automatically save the file whien switching buffers

"--------------------Backup--------------------
" Directories for the swp files
set directory=~/.vim-tmp,~/.tmp,~/tmp,/var/tmp,/tmp