Bash Script for easily seeing differences between module versions

drupal_diff_module.sh

#!/bin/bash

MODULE=$1
VERFROM=$2
VERTO=$3
shift
shift
shift

if [ "$MODULE" == "" ] || [ "$VERFROM" == "" ] || [ "$VERTO" == "" ]
then
  echo "Usage: $0 module version-from version-to"
  printf "\tExample: $0 ldap 7.x-2.1 7.x-2.2\n"
  exit 1
fi

NOW=$(date +"%Y%m%dT%H%M%S")
DIFFOLDER="/tmp/${MODULE}_${VERFROM}_${VERTO}_${NOW}"
MODFROM="$MODULE-$VERFROM"
MODTO="$MODULE-$VERTO"
echo "Creating $DIFFOLDER"
mkdir $DIFFOLDER
cd $DIFFOLDER
drush @none dl $MODFROM
mv $MODULE $MODFROM
drush @none dl $MODTO
mv $MODULE $MODTO
diff -qr "$MODFROM" "$MODTO"
diff -x '*.info' -r "$MODFROM" "$MODTO"