Find files that are different between the original RPM version and the current version on the filesystem

filediff.sh

#!/bin/bash

PACKAGE_NAME='cfme'

echo "Finding list of files changed from $PACKAGE_NAME..."
changed_files=`rpm -V $PACKAGE_NAME | grep ".rb$" | cut -b 14-`
if [ "x$changed_files" == "x" ]; then
  echo "Found no file changes"
  exit 0
fi

echo "$changed_files"

echo "Downloading RPM file for $PACKAGE_NAME"
yumdownloader $PACKAGE_NAME &> /dev/null

PACKAGE_FILE=`ls $PACKAGE_NAME*.rpm`
echo "Extracting files from $PACKAGE_FILE"
rpm2cpio $PACKAGE_FILE | cpio -idm &> /dev/null

hostname=`hostname`
outfile="changed_files.$hostname"
echo "Finding changed file diffs"
for file in $changed_files; do
  echo "$0 Diff for $file" | tee -a $outfile
  echo "................................................................................................" | tee -a $outfile
  diff -u "./$file" $file | tee -a $outfile
done