My own vimrc config file

.vimrc

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" Maintainer:
"       Marc-Olivier Arsenault
"       marcolivier.arsenault@gmail.com
"
" Version:
"       1.0 - 20/03/2017
"
" Blog_post:
"       Highly inspired from Awesome vim file
"       http://amix.dk/blog/post/19691#The-ultimate-Vim-configuration-on-Github
"
" Awesome_version:
"       Install the awesome version from:
"
"           https://github.com/amix/vimrc
"
" Sections:
"    -> General
"    -> Folding
"    -> Colors and Fonts
"    -> Files and backups
"    -> Text, tab and indent related
"    -> Visual mode related
"    -> Moving around, tabs and buffers
"    -> Status line
"    -> Editing mappings
"    -> Misc
"    -> Vundle and Plugins deff
"    -> NERD Tree
"    -> CtrlP
"
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" => General
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" Sets how many lines of history VIM has to remember
set history=700

" Enable filetype plugins
filetype plugin on
filetype indent on

" Set to auto read when a file is changed from the outside
set autoread

" With a map leader it's possible to do extra key combinations
" like <leader>w saves the current file
let mapleader = ","
let g:mapleader = ","

" Fast saving
nmap <leader>w :w!<cr>

" Show line number
set number

"show last command
set showcmd

" enable mouse support
set mouse=a

" Turn on the WiLd menu
set wildmenu

" Use Relative line number
set relativenumber

" Ignore compiled files
set wildignore=*.o,*~,*.pyc

"Always show current position
set ruler

" Height of the command bar
set cmdheight=1

" A buffer becomes hidden when it is abandoned
set hid

" Configure backspace so it acts as it should act
set backspace=eol,start,indent
set whichwrap+=<,>,h,l

" Ignore case when searching
set ignorecase

" When searching try to be smart about cases
set smartcase

" Highlight search results
set hlsearch

" Remove search hightlight
nnoremap <leader><space> :nohlsearch<CR>

" Makes search act like search in modern browsers
set incsearch

" Don't redraw while executing macros (good performance config)
set lazyredraw

" For regular expressions turn magic on
set magic

" Show matching brackets when text indicator is over them
set showmatch
" How many tenths of a second to blink when matching brackets
set mat=2

" No annoying sound on errors
set noerrorbells
set novisualbell
set t_vb=
set tm=500



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" => Folding
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set foldenable          " enable folding
set foldlevelstart=10   " open most folds by default
set foldnestmax=10      " 10 nested fold max
nnoremap <space> za
set foldmethod=indent   " fold based on indent level

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" => Colors and Fonts
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" Enable syntax highlighting
syntax enable

colorscheme desert
set background=dark
set cursorline "Show cursor line in bold
hi CursorLine term=bold cterm=bold guibg=Grey40

" Set extra options when running in GUI mode
if has("gui_running")
    set guioptions-=T
    set guioptions+=e
    set t_Co=256
    set guitablabel=%M\ %t
endif

" Set utf8 as standard encoding and en_US as the standard language
set encoding=utf8

" Use Unix as the standard file type
set ffs=unix,dos,mac


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" => Files, backups and undo
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" Turn backup off, since most stuff is in SVN, git et.c anyway...
set nobackup
set nowb
set noswapfile


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" => Text, tab and indent related
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" Use spaces instead of tabs
set expandtab

" Be smart when using tabs ;)
set smarttab

" 1 tab == 4 spaces
set shiftwidth=4
set tabstop=4

" Linebreak on 500 characters
set lbr
set tw=500

set ai "Auto indent
set si "Smart indent
set wrap "Wrap lines


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" => Visual mode related
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" Visual mode pressing * or # searches for the current selection
" Super useful! From an idea by Michael Naumann
vnoremap <silent> * :call VisualSelection('f')<CR>
vnoremap <silent> # :call VisualSelection('b')<CR>


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" => Moving around, tabs, windows and buffers
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" Treat long lines as break lines (useful when moving around in them)
map j gj
map k gk

" Disable highlight when <leader><cr> is pressed
map <silent> <leader><cr> :noh<cr>

" Smart way to move between windows
map <C-j> <C-W>j
map <C-k> <C-W>k
map <C-h> <C-W>h
map <C-l> <C-W>l

" Close the current buffer
map <leader>bd :Bclose<cr>

" Close all the buffers
map <leader :1,1000 bd!<cr>

" Useful mappings for managing tabs
map <leader>tn :tabnew<cr>
map <leader>to :tabonly<cr>
map <leader>tc :tabclose<cr>
map <leader>tm :tabmove

" Opens a new tab with the current buffer's path
" Super useful when editing files in the same directory
map <leader>te :tabedit <c-r>=expand("%:p:h")<cr>/

" Switch CWD to the directory of the open buffer
map <leader>cd :cd %:p:h<cr>:pwd<cr>

" Specify the behavior when switching between buffers
try
  set switchbuf=useopen,usetab,newtab
  set stal=2
catch
endtry

" Return to last edit position when opening files (You want this!)
autocmd BufReadPost *
     \ if line("'\"") > 0 && line("'\"") <= line("$") |
     \   exe "normal! g`\"" |
     \ endif
" Remember info about open buffers on close
set viminfo^=%


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" => Status line
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" Always show the status line
set laststatus=2

" Format the status line
set statusline=\ %{HasPaste()}%F%m%r%h\ %w\ \ CWD:\ %r%{getcwd()}%h\ \ \ Line:\ %l


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" => Editing mappings
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" Move a line of text using CTR+[jk]
nnoremap <C-j> :m .+1<CR>==
nnoremap <C-k> :m .-2<CR>==

" Insert mode
inoremap <C-j> <ESC>:m .+1<CR>==gi
inoremap <C-k> <ESC>:m .-2<CR>==gi

" Visual mode
vnoremap <C-j> :m '>+1<CR>gv=gv
vnoremap <C-k> :m '<-2<CR>gv=gv

" Delete trailing white space on save, useful for Python and CoffeeScript ;)
func! DeleteTrailingWS()
  exe "normal mz"
  %s/\s\+$//ge
  exe "normal `z"
endfunc
autocmd BufWrite *.py :call DeleteTrailingWS()
autocmd BufWrite *.coffee :call DeleteTrailingWS()


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" => Misc
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" Remove the Windows ^M - when the encodings gets messed up
noremap <Leader>m mmHmt:%s/<C-V><cr>//ge<cr>'tzt'm

" Quickly open a buffer for scripbble
map <leader>q :e ~/buffer<cr>

" Toggle paste mode on and off
map <leader>pp :setlocal paste!<cr>

" to work with TMUX
if exists('$TMUX')
    let &t_SI = "\<Esc>Ptmux;\<Esc>\<Esc>]50;CursorShape=1\x7\<Esc>\\"
    let &t_EI = "\<Esc>Ptmux;\<Esc>\<Esc>]50;CursorShape=0\x7\<Esc>\\"
else
    let &t_SI = "\<Esc>]50;CursorShape=1\x7"
    let &t_EI = "\<Esc>]50;CursorShape=0\x7"
endif


" Toggle relative line
function! NumberToggle()
  if(&relativenumber == 1)
    set norelativenumber
  else
    set relativenumber
  endif
endfunc

nnoremap <C-n> :call NumberToggle()<cr>

function! CustomtoggleGui()
    if(&number == 1)
        set nonumber
        set norelativenumber
        NERDTreeClose
    else
        set number
        set relativenumber
        NERDTree
  endif
endfunc

" Copy into real buffer
nnoremap <C-c> :call CustomtoggleGui()<cr>

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" => vundle and plugin
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set nocompatible              " be iMproved, required
filetype off                  " required

set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()

Plugin 'VundleVim/Vundle.vim'
Plugin 'ConradIrwin/vim-bracketed-paste'
Plugin 'scrooloose/nerdtree'
Bundle 'jistr/vim-nerdtree-tabs'
Plugin 'tpope/vim-fugitive'
Plugin 'scrooloose/syntastic'
Plugin 'tpope/vim-surround'
Plugin 'bling/vim-airline'
Plugin 'airblade/vim-gitgutter'
Plugin 'kien/ctrlp.vim'
Plugin 'scrooloose/nerdcommenter'

call vundle#end()            " required
filetype plugin indent on    " required



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" => NERD Tree
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let g:nerdtree_tabs_open_on_console_startup=1
let NERDTreeShowHidden=1



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" => CtrlP
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let g:ctrlp_map = '<C-t>'
let g:ctrlp_cmd = 'CtrlP'

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" => GitGutter
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let g:gitgutter_sign_column_always = 1