My ~/.vimrc

.vimrc

set sw=4
set ts=4
set expandtab
filetype plugin indent on

" Source vimrc from git project root
" https://gist.github.com/leif81/4617337
let project_root = system("git rev-parse --show-toplevel")
let chomped_project_root = project_root[:-2]
let project_vimrc = chomped_project_root."/.vimrc"
if filereadable(project_vimrc)
    execute "source" project_vimrc
endif

" Highlight trailing whitespace
" http://stackoverflow.com/questions/4617059/showing-trailing-spaces-in-vim
:highlight ExtraWhitespace ctermbg=red guibg=red
:match ExtraWhitespace /\s\+$/