Store all your brew formula and reload in case of emergency

.zshrc

# ...

brw() {
  brew $@
  brew list --versions | perl -pe 's/([\w-(@\d\.\d)]+).*/$1/' > $CONFIG/brew_installed.txt
}

restore_from_brew() {
  cat $CONFIG/brew_installed.txt | xargs brew install
}

setup.sh

# Sets up computer
# have other things in here to load back in all your .*rc files
# here is an example using GNU Stow
pushd ~
git clone https://github.com/deecewan/dotfiles.git
pushd dotfiles
find . -type d -maxdepth 1 | xargs stow
# contents of dotfiles is [brew_installed.txt, git, iterm, setup.sh, zsh]
# see `man stow` for more info

# install brew
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
source ~/.zshrc
restore_from_brew

echo "Installed everything"