Install like this:

cd ~/
brew install cmake macvim
git clone https://github.com/VundleVim/Vundle.vim.git ~/.vim/bundle/Vundle.vim
cp ./vimrc ~/.vim/vimrc
ln -s ~/.vim/vimrc ~/.vimrc 
cd ~/.vim/bundle/YouCompleteMe
./install.py
vim +PluginInstall +qall