Automate brew update

brewupd.sh

#!/usr/bin/env bash
# curl -o xx https://gist.githubusercontent.com/otzoran/0214f5f9e817c54c597da31dd86c9162/raw

TIM=60
PROG=$(basename $0)

trap 'echo "ERROR $? at ${PROG}:$LINENO - [$BASH_COMMAND]"' err

function wait_confirmation
{
	set +e	# without it, timeout will provoke exit from the shell... 
	casks="$1"
	ANS=''
	for ii in seq 1 5; do
		# play sound brew_end_fetch.m4a
		#set -x
		/usr/bin/afplay -v 0.3 ~/Music/brew_end_fetch.m4a
		read -t $TIM -p "Finished brew fetch $casks. Install? [y]: " ANS
		exstat=$? 
		if [[ $exstat > 128 ]]; then
			HHMM=$(date '+%T')
			printf "\n%2d [%s] timeout\n" $ii $HHMM
			continue
		elif [[ $exstat == 0 ]]; then
			[[ -z $ANS ]] && ANS="y"; 
		else
			printf "%2d in loop, read exstat == $exstat\n"
		fi

		if [[ $ANS == "y" ]]; then
			return 0
		fi
	done
	set +e
	return 1

}

set -ex
trap -p
brew update 
fm=$(brew outdated --formula)
fm=${fm//$'\n'/ }		# suppress \n replace by space 
set +x
#ck=$(brew outdated --cask)
printf "\n=====\n" 
if [[ -n "$fm" ]]; then 
	/usr/bin/afplay -v 0.3 ~/Music/brew_start_upg_formula.m4a
	brew upgrade --formula 
fi

set -x
pkk=$(brew outdated --cask --greedy --quiet | grep -v android-file-transfer | paste -s -d ' ' -)
pkk=${pkk//$'\n'/ }		# suppress \n replace by space 
set +x

#test pkk='opera postman'
#TODO: brew info $pkg, ==> Artifacts
# Brave Browser.app (App)
# pgrep -f "Brave Browser.app" => list of pid's, one per line {pgrep -fl = long}

if [[ -n "$pkk" ]]; then 
	printf "fetch outdated:\n$pkk\n"
	brew fetch --cask $pkk 
	wait_confirmation "$pkk" 
	if [[ $? == 0 ]]; then
		printf "installing: $pkk\n"
		# 2021-01 upd switch
		brew reinstall --cask $pkk
	else
		printf "Bailed out, run brew reinstall --cask $pkk"
	fi
fi

printf "\n===== updated formula:\n$fm\n"
printf "\n===== updated casks:\n$pkk\n"

added trap

add curl to download it => xx