Build latest MacVim, activating and deactivating all the right things along the way

build.sh

#!/bin/bash

if [ ! -z $(which ruby | grep '.rvm') ]; then
  echo "Switch to system ruby!"
  exit 1
fi

echo "Building latest MacVim..."

sudo port activate libiconv
git pull
sudo port deactivate -f libiconv
rvm system
cd src
make clean
./configure --with-features=huge \
              --enable-rubyinterp \
              --enable-pythoninterp \
              --enable-perlinterp \
              --enable-cscope
make
sudo port activate libiconv
cp -Rpv MacVim/build/Release/MacVim.app /Applications
cd /Applications
open MacVim.app

echo "Done!"