savelocaltweaks



#!/bin/sh

targetdir=/tmp/localtweaks

origfiles="`cd /etc && find . -name '*.orig'`"
oldfiles="`cd /etc && find . -name '*.old'`"

# merge all to only process once when both .orig and .old exist
files="`echo $origfiles $oldfiles | tsort`"

for file in $files; do
    olddir="/etc/`dirname $file`"
    newdir="$targetdir/`dirname $file`"
    oldname="`basename $file`"
    newname="`basename $file .orig`"
    if [ ! -e $olddir/$newname.orig ]; then
        newname="`basename $file .old`"
    fi
    if [ "$oldname" = "$newname" ]; then
        echo "FATAL: file is neither .orig nor .old: \"$file\"!"
        exit 1
    fi
    if [ ! -e $olddir/$oldname ]; then
        echo "FATAL: file found disappeared again: \"$file\"!"
        exit 1
    fi
    mkdir -p $newdir
    cp -af $olddir/$newname $newdir

    # Only diff against non-empty files.
    if [ -s $olddir/$oldname ]; then
        diff -ruN $olddir/$oldname $olddir/$newname > $newdir/$newname.diff
        chmod --reference=$olddir/$newname $newdir/$newname.diff
        chown --reference=$olddir/$newname $newdir/$newname.diff
    fi
done