A script which updates brews, cast, software updates, etc

swup

#!/bin/bash
# Script that will update all kinds of stuff (brews, casks, software updates, app store apps, etc)
set -o pipefail

# You can set any of these variables to "no" in your environment if you want to skip that particular portion
: ${SWUP_OS:="yes"}
: ${SWUP_BREW:="yes"}
: ${SWUP_MAS:="yes"}
: ${SWUP_BUNDLE:="yes"}
: ${SWUP_REMOVE_QUARANTINE:="yes"}

: ${SWUP_LOG:="${HOME}/Library/Logs/swup.log"}

# Searches for updates
HAS_OS="no"
HAS_BREW="no"
HAS_CASK="no"
HAS_MAS="no"
HAS_ANY="no"
function search_for_updates {
  echo "========================" | tee -a "${SWUP_LOG}"
  echo "Searching for updates..." | tee -a "${SWUP_LOG}"
  if [ "${SWUP_OS}" == "yes" ]; then
    echo " - Searching for OS updates..." | tee -a "${SWUP_LOG}"
    softwareupdate --force -l >> "${SWUP_LOG}" 2>&1 || return $?
    _O="$(softwareupdate --no-scan -l 2>/dev/null | grep -v 'Software Update Tool' | grep -v '^$' | grep -v 'No new')"
    [ $(echo "${_O}" | grep '.' | wc -l) -gt 0 ] && {
      echo "${_O}" | sed -e 's/^/   /g' | tee -a "${SWUP_LOG}"
      HAS_OS="yes"; HAS_ANY="yes"
    }
  fi
  
  which brew &>/dev/null && {
    if [ "${SWUP_BREW}" == "yes" ]; then 
      echo " - Searching for homebrew updates..." | tee -a "${SWUP_LOG}"
      brew update >> "${SWUP_LOG}" 2>&1 || return $?
      _O="$(brew outdated --formula --verbose 2>/dev/null)"
      [ $(echo "${_O}" | grep '.' | wc -l) -gt 0 ] && {
        echo "${_O}" | sed -e 's/^/   /g' | tee -a "${SWUP_LOG}"
        HAS_BREW="yes"; HAS_ANY="yes"
      }
      _O="$(brew outdated --cask --greedy-auto-updates --verbose 2>/dev/null)"
      [ $(echo "${_O}" | grep '.' | wc -l) -gt 0 ] && {
        echo "${_O}" | sed -e 's/^/   /g' | tee -a "${SWUP_LOG}"
        HAS_CASK="yes"; HAS_ANY="yes"
      }
    fi
  }
  
  which mas &>/dev/null && mas account &>/dev/null && {
    if [ "${SWUP_MAS}" == "yes" ]; then
      echo " - Searching for App Store updates..." | tee -a "${SWUP_LOG}"
      mas outdated >> "${SWUP_LOG}" 2>&1 || return $?
      _O="$(mas outdated | cut -d' ' -f2- 2>/dev/null)"
      [ $(echo "${_O}" | grep '.' | wc -l) -gt 0 ] && {
        echo " - App Store updates" | tee -a "${SWUP_LOG}"
        echo "${_O}" | sed -e 's/^/   /g' | tee -a "${SWUP_LOG}"
        HAS_MAS="yes"; HAS_ANY="yes"
      }
    fi
  }
  
  [ "${HAS_ANY}" == "no" ] && { echo "" | tee -a "${SWUP_LOG}"; echo "No updates available" | tee -a "${SWUP_LOG}"; }
  echo "" | tee -a "${SWUP_LOG}"
  return 0
}

# Actually performs the upgrade
function do_upgrade {
  echo "========================" | tee -a "${SWUP_LOG}"
  echo "Upgrading packages..." >> "${SWUP_LOG}"
  read -p "Upgrading packages - Press enter to continue..."
  
  if [ "${HAS_OS}" == "yes" ]; then
    softwareupdate --no-scan -i -a 2>&1 | tee -a "${SWUP_LOG}" || return $?
  fi
  if [ "${HAS_BREW}" == "yes" ]; then
    brew upgrade --formula 2>&1 | tee -a "${SWUP_LOG}" || return $?
  fi
  if [ "${HAS_CASK}" == "yes" ]; then
    brew upgrade --cask $(brew outdated --cask --greedy-auto-updates --verbose | cut -d' ' -f1) 2>&1 \
    | tee -a "${SWUP_LOG}" || return $?
  fi
  if [ "${HAS_MAS}" == "yes" ]; then
    mas upgrade 2>&1 | tee -a "${SWUP_LOG}" || return $?
  fi

  echo "" | tee -a "${SWUP_LOG}"
  return 0
}

# Cleans up leftover packages
function do_clean {
  echo "========================" | tee -a "${SWUP_LOG}"
  echo "Cleaning up..." | tee -a "${SWUP_LOG}"
  which brew &>/dev/null && {
    brew cleanup -s 2>&1 >> "${SWUP_LOG}" || return $?
    rm -rvf "$(brew --cache)/downloads/"* 2>&1 >> "${SWUP_LOG}" || return $?
    brew cleanup 2>&1 >> "${SWUP_LOG}" || return $?
  }
  [ "${SWUP_REMOVE_QUARANTINE}" == "yes" ] && {
    xattr -d com.apple.quarantine /Applications/* &>/dev/null
  }

  echo "" | tee -a "${SWUP_LOG}"
  return 0
}

# Checks for bundle status
function check_bundle {
  if [ "${SWUP_BUNDLE}" == "yes" -a -f "${HOME}/.Brewfile" ]; then
    echo "========================" | tee -a "${SWUP_LOG}"
    echo "Checking global bundle for unused packages..." | tee -a "${SWUP_LOG}"
    brew bundle cleanup --global 2>&1 | sed -e 's/--force/--force --global/g' | tee -a "${SWUP_LOG}"
    echo "" | tee -a "${SWUP_LOG}"
  fi

  return 0
}

search_for_updates || { _r=$?; echo "Error searching for updates" | tee -a "${SWUP_LOG}"; exit ${_r}; }
[ "${HAS_ANY}" == "yes" ] && {
  do_upgrade || { _r=$?; echo "Error upgrading packages" | tee -a "${SWUP_LOG}"; exit ${_r}; }
}
do_clean || { _r=$?; echo "Error cleaning up" | tee -a "${SWUP_LOG}"; exit ${_r}; }
check_bundle || { _r=$?; echo "Error checking bundle" | tee -a "${SWUP_LOG}"; exit ${_r}; }
echo "========================" | tee -a "${SWUP_LOG}"
echo "Done" | tee -a "${SWUP_LOG}"
exit 0