#!/bin/sh

PFILE=$1
shift
PATCH_OPTS=$*
TMPDIR=/tmp/patch.$$

# give ourselves a place to hide and put the patch there
mkdir $TMPDIR || exit 1

cp $PFILE $TMPDIR || exit 1
pushd $TMPDIR || exit 1

# possibly extract the patch
(uudeview -i -m -t $PFILE
 gunzip *.gz 
 gunzip *.Z 
 bunzip2 *.bz2
) > /dev/null 2> /dev/null
PATCH=`grep -l '^+++' * | head -1`

if [ x$PATCH = x ]; then
	ls -la
	echo "Unable to find a patch"	
	rm -rf $TMPDIR
	exit 1
fi

less $PATCH
echo -n "continue with patch? (y/n) "
read ans
if [ $ans != y ]; then
   echo aborting
   rm -rf $TMPDIR
   exit 1
fi

echo -n "patch options? [$PATCH_OPTS] "
read ans
if [ x$ans != x ]; then
   PATCH_OPTS=$ans
fi

popd
cat $TMPDIR/$PATCH | patch $PATCH_OPTS 

rm -rf $TMPDIR