steam-bulk-update-behavior-changer

#!/bin/bash
#steam-bulk-update-behavior-changer
#by: Mouse
#Current build: Feb 12, 2023

#filters:
#you can add your own filters here for the game names or IDs you want ignored.
#filters must be exact
#in other words, they're case sensitive and each game name or ID must be written here exactly as it appears in the acf file/SteamDB/STDOUT of this script/etc.
#example 1: the filter "Fallout" will not filter out the game Fallout: New Vegas
#example 2: the filter "Fallout New Vegas" will not filter out any other Fallout. Nor will it filter out the game it was intended to filter either, because the formal name is "Fallout: New Vegas" and not "Fallout New Vegas"
filter=("Steam Controller Configs" "0")

isfiltered(){
	y=false
	for x in "${filter[@]}"; do
		if [[ "$x" == "$1" ]]; then
			y=true
			break
		fi
	done
	echo "$y"
}

string-substitute-all(){
	echo "${1//$2/$3}"
}

string-tab(){
	echo $'\t'
}

string-make-all-lowercase(){
	echo "${@,,}"
}

echobehaviorlist(){
	echo "0 for 'Always keep this game updated'. (Steam's default)"
	echo "1 for 'Only update this game when I launch it'."
	echo "2 for 'High Priority - Always auto-update this game before others'."
}

usage(){
	echo "Usage: $0 [ \"steamapps directory\" ] [ 0 || 1 || 2 (optional) ]"
	echo "This will automatically change how all games in a specific steamapps directory update."
	echobehaviorlist
	echo "This script will make backups of all acf files in the same directory before making changes."
	echo "If something goes wrong, revert to the backup."
	echo "This script won't change update behavior for Proton, Steam Linux Runtime, Steamworks Common Redistributables, SteamVR, and anything you add to the filter list."
	echo "-h for this dialog."
}

changeautoupdate(){
	counter=0
	warnings=0
	for file in "$thedir/"*".acf"; do
		ID="$(basename "$file")"
		if ! [[ "$ID" == *"-backup" ]]; then
			ID="$(string-substitute-all "$ID" "appmanifest_" "")"
			ID="$(string-substitute-all "$ID" ".acf" "")"
			asdf="$(cat "$file")"
			name="${asdf#*"\"name\"$(string-tab)$(string-tab)\""}"
			name="${name%%"\""*}"
			#filter out proton, steam, and user specified stuff. if you have these, then presumably you want them to stay updated. if not, you can always change it manually.
			if [[ "$name" == "Proton "* ]] || [[ "$name" == "Steam Linux Runtime"* ]] || [[ "$name" == "Steamworks Common Redistributables"* ]] || [[ "$name" == "SteamVR"* ]] || [[ "$(isfiltered "$ID")" == "true" ]] || [[ "$(isfiltered "$name")" == "true" ]]; then
				echo "Ignoring $name ($ID)."
			else
				if [[ "$1" == "doublecheck" ]]; then
					if ! [[ "$asdf" == *"\"AutoUpdateBehavior\"$(string-tab)$(string-tab)\"$behavior\""* ]]; then
						echo "WARNING: There was a problem setting behavior $behavior for $name ($ID). Investigate."
						warnings="$((warnings+1))"
					else
						counter="$((counter+1))"
					fi
				else
					#filter out games who's behavior is already set to $behavior
					if [[ "$asdf" == *"\"AutoUpdateBehavior\"$(string-tab)$(string-tab)\"$behavior\""* ]]; then
						echo "Behavior $behavior already set for $name ($ID). Skipping."
					else
						echo "Processing $name ($ID)"
						if ! [[ -f "$file"-backup ]]; then
							cp "$file" "$file"-backup
						fi
						x="$(string-substitute-all "$asdf" "\"AutoUpdateBehavior\"$(string-tab)$(string-tab)\"0\"" "\"AutoUpdateBehavior\"$(string-tab)$(string-tab)\"$behavior\"")"
						x="$(string-substitute-all "$x" "\"AutoUpdateBehavior\"$(string-tab)$(string-tab)\"1\"" "\"AutoUpdateBehavior\"$(string-tab)$(string-tab)\"$behavior\"")"
						x="$(string-substitute-all "$x" "\"AutoUpdateBehavior\"$(string-tab)$(string-tab)\"2\"" "\"AutoUpdateBehavior\"$(string-tab)$(string-tab)\"$behavior\"")"
						echo "$x" > "$file"
						counter="$((counter+1))"
					fi
				fi
			fi
		fi
	done
}

if (( $# >= 1 )); then
	while getopts "h" OPTION; do
		case "${OPTION}" in
			h)
				usage
				exit
				;;
			\?)
				exit
				;;
		esac
	done
	shift "$((OPTIND -1))"

	thedir="$(realpath "$1")"
	if ! [[ -d "$thedir" ]]; then
		echo "Invalid directory. Exiting."
		exit
	fi
	if [[ "$(string-make-all-lowercase "$(basename "$thedir")")" == "steamapps" ]]; then
		if (( $# == 2 )); then
			behavior="$2"
		else
			echo "What behavior?"
			echobehaviorlist
			read -e behavior
		fi
		if [[ "$behavior" == 0 ]] || [[ "$behavior" == 1 ]] || [[ "$behavior" == 2 ]]; then
			changeautoupdate
			attempts="$counter"
			changeautoupdate "doublecheck"
			echo "Done!"
			echo "$attempts out of $counter entries successfully changed."
			if ((warnings > 0)); then
				echo "$warnings critical failure(s). These must be resolved manually. This script isn't programmed for it."
			fi
			echo "Steam must be restarted before any changes will be applied."
		else
			echo "Invalid behavior selected. Cancelling."
		fi

	else
		echo "ERROR: steamapps directory not found."
		echo "Ensure you are supplying a valid steamapps directory."
		echo "Exiting."
	fi

else
	usage
fi