Homebrew-Cask upgrade

brew-cask-upgrade.sh

#!/usr/bin/env bash

outdated() {
  local token="${1}"
  local info
  local cask
  local path

  mapfile -t info < <(brew cask info "${token}")
  read -r -a cask <<< "${info[0]}"
  read -r -a path <<< "${info[2]}"

  # shellcheck disable=SC2203
  [[ $path[0] != *"${cask[1]}"* ]]
}

casks=""

for cask in $(brew cask list); do
  if [[ "${cask}" != 'google-chrome' ]] && [[ "${cask}" != 'skype' ]] &&
    outdated "${cask}"; then
    casks="${casks} ${cask}"
  fi
done

if [[ -n "${casks}" ]]; then
  # shellcheck disable=SC2086
  exec brew cask upgrade ${casks}
fi