#!/bin/sh

if [ $# != 2 ]; then
	echo "Usage: $0 app_bundle new_version";
	exit 1;
fi

FILE="$1/Contents/Info.plist"
NEW="$2"

ed -s "$FILE" <<EOF
H
,s/2\.[0-9]\{1,\}\.[0-9]\{1,\}/$NEW/
w
q
EOF

if [ $? != 0 ]; then
  echo "Update failed!"
  exit 1
fi

echo "The version number has been changed to $NEW"