Homebrew maintenance script

homebrew_update.sh

#!/bin/zsh

# Make sure we’re using the latest Homebrew
echo -e "### START UPDATING BREW ###\n"
brew update
echo -e "### FINISH UPDATING BREW ###\n"

# Upgrade any already-installed formulae
echo -e "### START UPDATING ALL FORMULAE ###\n"
brew upgrade
echo -e "### FINISH UPDATING ALL FORMULAE ###\n"

# Scrub the cache
echo -e "### START CLEANUP ###\n"
brew cleanup -s
echo -e "### FINISH CLEANUP ###\n"

echo -e "### START DOCTOR ###\n"
brew doctor
echo -e "### FINISH DOCTOR ###\n"

echo -e "### START LISTING OUTDATED CASKS ###\n"
brew outdated --cask
echo -e "### FINISH LISTING OUTDATED CASKS ###\n"

echo -e "### START UPDATING OUTDATED CASKS ###\n"
brew outdated --cask | xargs brew reinstall
echo -e "### FINISH UPDATING OUTDATED CASKS ###\n"

echo -e "### START LISTING UNNEEDED DEPENDENCIES (dry-run) - 'brew autoremove' to execute ###\n"
brew autoremove -n
echo -e "### FINISH LISTING UNNEEDED DEPENDENCIES (dry-run) ###\n"