My ~/.vimrc file

.vimrc

"----------
" General
"----------
set nocompatible	"stops vim from behaving in a strongly vi -compatible way. Place at the start of vimrc file as it can affect lots of other options which you may want to override.

filetype plugin on	"turns plugin on depending on filetype
filetype indent on	"special identation for certain filetypes

" 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 = ","

" look for all the TODO tags
noremap <Leader>t :noautocmd vimgrep /TODO/j **/*.Rmd **/*.R <CR>:cw<CR>

" Turn off ability to enter Ex mode which is not very useful to be in
nnoremap Q <nop>

" Quickly edit/reload the vimrc file
nmap <silent> <leader>ev :tabedit $MYVIMRC<CR>
nmap <silent> <leader>sv :so $MYVIMRC<CR>

" get rid of the funny symbols in tmuxline
let g:tmuxline_powerline_separators = 0

" vim to ignore these files
set wildignore=*.swp,*.bak,*.pyc,*.class

set pastetoggle=<F2>

" Easy window navigation
map <C-h> <C-w>h
map <C-j> <C-w>j
map <C-k> <C-w>k
map <C-l> <C-w>l

" ensures that vim moves up/down linewise instead of by wrapped lines
nmap j gj
nmap k gk

" makes new files opened using the gf command (open files under cursor) to open in a new tab
map gf <C-w>gf

map cdf :cd %:p:h

" Lines added by the Vim-R-plugin command :RpluginConfig (2015-Jan-07 12:07):
" Use Ctrl+Space to do omnicompletion:
if has("gui_running")
    inoremap <C-Space> <C-x><C-o>
else
    inoremap <Nul> <C-x><C-o>
endif

" Force Vim to use 256 colors if running in a capable terminal emulator:
if &term =~ "xterm" || &term =~ "256" || $DISPLAY != "" || $HAS_256_COLORS == "yes"
    set t_Co=256
endif

"----------
" Status Line
"----------
set t_Co=256
syntax enable
syntax on        "this is needed to see syntax

" use base16-default colorscheme (https://github.com/chriskempson/base16-vim)
" requires base16-shell (https://github.com/chriskempson/base16-shell)
" requires base16-iterm2 (https://github.com/chriskempson/base16-iterm2)
set background=dark  "makes it easier to read with black background
let base16colorspace=256 " Access colors present in 256 colorspace
colorscheme base16-default

set hlsearch        " highlight searches
set incsearch       " highlight as you type
set visualbell t_vb=    " turn off error beep/flash
set ignorecase        "ignore case while searching
set bs=2	"enables backspace.  Seems to have been disabled in vim7.3

"----------
" Mappings
"----------
"map ,# :s/^/#/<CR>
map ,/ :s/^/\/\//<CR>
map ,> :s/^/> /<CR>
map ," :s/^/\"/<CR>
map ,% :s/^/%/<CR>
map ,! :s/^/!/<CR>
map ,; :s/^/;/<CR>
map ,- :s/^/--/<CR>
map ,cd :cd ..
map ,te :tabedit
map ,r i#!/usr/bin/env Rscript<C-O>o# Description: <C-O>o# Authors: Fong Chun Chan <[email protected]>
map ,s i#!/usr/bin/env sh<C-O>o# Description: <C-O>o# Authors: Fong Chun Chan <[email protected]>

" map ,nt key for turning on NERDTree (requires the NERDTree plugin)
map <leader>nt :NERDTree<ENTER>

"----------
" VIM user interface
"----------
set ruler	"Always show current position

set showmatch	"Show matching brackets when text indicator is over them
set mat=2	"How many tenths of a second to blink when matching brackets - doesn't work?

set cmdheight=2	"Height of the command bar

set ls=2         " always show status line

set number "put numbers on side

" prevents NERDTree plugin from using fancy arrow graphics
let g:NERDTreeDirArrows=0

"----------
" Text, tab and indent related
"----------

"Use spaces instead of tabs (i.e. spaces are substituted for tabs)
"set expandtab

" 1 tab == 2 spaces
"number of spaces to use for autoindenting"
set shiftwidth=2
set tabstop=2
set softtabstop=2

" insert tabs on the start of a line according to shiftwidth, not tabstop
set smarttab

" use multiple of shiftwidth when indenting with '<' and '>'
set shiftround  

set ai "Auto indent
set si "Smart indent

" turn on omni completion 
set omnifunc=syntaxcomplete#Complete

" turns on nice popup menu for omni completion
:highlight Pmenu ctermbg=238 gui=bold

" let R output highlighted using current color scheme
let rout_follow_colorscheme = 1

"----------
" Sparkup
"----------
let g:sparkupNextMapping = '<c-s>'

"----------
" Vundle Stuff
"----------
set nocompatible              " be iMproved, required
filetype off                  " required

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
" alternatively, pass a path where Vundle should install plugins
"call vundle#begin('~/some/path/here')

" let Vundle manage Vundle, required
Plugin 'gmarik/Vundle.vim'
"
"" The following are examples of different formats supported.
"" Keep Plugin commands between vundle#begin/end.
"" plugin on GitHub repo
Plugin 'tpope/vim-fugitive'  " Git integration
Plugin 'Lokaltog/vim-easymotion'  " Quick movements
Plugin 'tomtom/tcomment_vim'  " extensible & universal comment
Plugin 'scrooloose/nerdtree'  " file structure viewer
Plugin 'kshenoy/vim-signature'  " place, toggle and display marks
Plugin 'bling/vim-airline'  " vim status bar
Plugin 'kien/ctrlp.vim' " fuzzy search
Plugin 'tinyheero/vim-snippets'  " fork of honza/vim-snippets
Plugin 'edkolev/tmuxline.vim'  " improves the tmux status bar and integrates with the vim-airline
Plugin 'scrooloose/syntastic'  " adds syntax checking
Plugin 'tpope/vim-surround'  " quoting and parenthesizing made simple
Plugin 'tpope/vim-repeat'  " enable repeating supported plugin maps with
Plugin 'vitalk/vim-simple-todo'
Plugin 'MarcWeber/vim-addon-mw-utils'  " dependency of vim-snipmate
Plugin 'tomtom/tlib_vim'  " dependency of vim-snipmate
Plugin 'garbas/vim-snipmate'  " fork of the original SnipMate 
Plugin 'christoomey/vim-tmux-navigator'  " seamless navigation between tmux and vim panes

" git repos on your local machine (i.e. when working on your own plugin)
"Plugin 'file:///home/gmarik/path/to/plugin'
" The sparkup vim script is in a subdirectory of this repo called vim.
" Pass the path to set the runtimepath properly.
Plugin 'rstacruz/sparkup', {'rtp': 'vim/'}
" Avoid a name conflict with L9
"Plugin 'user/L9', {'name': 'newL9'}

" All of your Plugins must be added before the following line
call vundle#end()            " required
filetype plugin indent on    " required
" To ignore plugin indent changes, instead use:
"filetype plugin on
"
" Brief help
" :PluginList       - lists configured plugins
" :PluginInstall    - installs plugins; append `!` to update or just :PluginUpdate
" :PluginSearch foo - searches for foo; append `!` to refresh local cache
" :PluginClean      - confirms removal of unused plugins; append `!` to auto-approve removal
"
" see :h vundle for more details or wiki for FAQ
" Put your non-Plugin stuff after this line

filetype on                   " required!