#!/bin/sh


PREFIX=
. $PREFIX/lib/libalpine.sh

# set up temp dir
init_tmpdir TMPD

LBUCACHE="$TMPD/lbucache"

usage() {
	echo "$PROGRAM $VERSION
Usage: $PROGAM [-ahl]

  -a  Select all updated files.
  -h  Show this help.
  -l  List updated files.
"	
}


is_modified() {
	[ -f "$LBUCACHE" ] || lbu status -a | awk '{print $2}' > "$LBUCACHE"
	test -n "`( echo \"$1\" ; cat \"$LBUCACHE\" ) | sort | uniq -d`"
}

while getopts "alh" opt ; do
	case "$opt" in
		a)	aflag="-a" ;;
		l)	lflag="-l" ;;
		h|*)	usage;;
	esac	
done
shift `expr $OPTIND - 1`

find "$ROOT/etc" -name '*.apk-new' | while read apknew ; do
	p="${apknew%.apk-new}"
	f="${p#${ROOT}/}"
	unset choice

	if [ "$lflag" ] ; then
	
		# just list the file
		if [ "$aflag" ] || is_modified "$f" ; then
			echo "$p"
		fi
		
	elif [ "$aflag" ] || is_modified "$f" ; then
	
		# ask user what to do with the file
		while [ -z "$choice" ] ; do
			echo "New $p available:"
			echon "Quit, Next, Show diff, Edit new, Zap new, Use new (q/n/s/e/z/u) [s]: "
			default_read choice "s" </dev/tty
			case "$choice" in
				q) exit;;
				n) continue;;
				s) diff -u "$p" "$apknew" | ${PAGER:-less}
				   unset choice
				   ;;	
				e) ${EDITOR:-vi} "$apknew" ; unset choice;;
				z) rm "$apknew";;
				u) mv "$apknew" "$p";;
				*) unset choice;;
			esac
		done
	else
		# auto update
		echo "Autoupdating unchanged $p"
		mv "$apknew" "$p"
	fi
done