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Put your personal customizations in ~/.laptop.local. Write your customizations such that they can be run safely more than once.

brew_install_or_upgrade, fancy_echo and other functions from mac are available for use in ~/.laptop.local.

Below are some example functions written by the community.

Git

git_clone_or_pull() {
  local REPOSRC=$1
  local LOCALREPO=$2
  local LOCALREPO_VC_DIR=$LOCALREPO/.git
  if [[ ! -d "$LOCALREPO_VC_DIR" ]]; then
    git clone --recursive $REPOSRC $LOCALREPO
  else
    pushd $LOCALREPO
    git pull $REPOSRC && git submodule update --init --recursive
    popd
  fi
}

Homebrew Cask

brew_cask_expand_alias() {
  brew cask info "$1" 2>/dev/null | head -1 | awk '{gsub(/:/, ""); print $1}'
}

brew_cask_is_installed() {
  local NAME=$(brew_cask_expand_alias "$1")
  brew cask list -1 | grep -Fqx "$NAME"
}

brew_cask_install() {
  if ! brew_cask_is_installed "$1"; then
    brew cask install "$@"
  fi
}

brew_cask_install_or_upgrade() {
  if brew_cask_is_installed "$1"; then
    echo "$1 is already installed, brew cask upgrade is not yet implemented"
  else
    brew cask install "$@"
  fi
}

brew tap caskroom/cask
brew_install_or_upgrade 'brew-cask'

brew_cask_install_or_upgrade 'dropbox'
brew_cask_install 'google-chrome'
brew_cask_install_or_upgrade 'rdio'