#! /bin/sh
# The name is a deliberate echo of the "real" Debian dinstall; it moves
# packages into /usr/src/debian, removes any old versions of those packages
# there, and re-runs dpkg-myscan {packages,sources}.

if [ $# -lt 2 ]; then
	echo "Usage: $0 package-name version-number" >&2
	exit 1
fi

PACKAGE=$1
VERSION=$2
UPSTREAM=`echo $VERSION | sed -e 's/-[^-]*$//'`

echo -n "Dinstalling package $PACKAGE, "
echo -n "version $VERSION, "
echo    "upstream version $UPSTREAM"

ARCH=i386
DEB=$PWD/${PACKAGE}_${VERSION}_${ARCH}.deb
ORIG=$PWD/${PACKAGE}_$UPSTREAM.orig.tar.gz
DIFF=$PWD/${PACKAGE}_${VERSION}.diff.gz
DSC=$PWD/${PACKAGE}_${VERSION}.dsc
CHANGES=$PWD/${PACKAGE}_${VERSION}_${ARCH}.changes

# Sanity checks

ERROR=
if [ ! -f $DEB     ]; then echo $DEB     'not found' >&2; ERROR=1; fi
if [ ! -f $ORIG    ]; then echo $ORIG    'not found' >&2; ERROR=1; fi
if [ ! -f $DIFF    ]; then echo $DIFF    'not found' >&2; ERROR=1; fi
if [ ! -f $DSC     ]; then echo $DSC     'not found' >&2; ERROR=1; fi
if [ ! -f $CHANGES ]; then echo $CHANGES 'not found' >&2; ERROR=1; fi
[ "$ERROR" ] && exit 1

SECTION=`dpkg -f $DEB Section`
if [ "$SECTION" ]; then
	echo "Section: $SECTION"
else
	echo "Section not found." >&2
	exit 1
fi

if echo $SECTION | egrep -q '^(contrib|non-free)/'; then
	BINARYDIR=`echo $SECTION | sed -e "s|/|/binary-$ARCH/|"`
	SOURCEDIR=`echo $SECTION | sed -e "s|/|/source/|"`
elif echo $SECTION | egrep -q '^non-US/'; then
	BINARYDIR=$SECTION/binary-$ARCH
	SOURCEDIR=$SECTION/source
else
	BINARYDIR=main/binary-$ARCH/$SECTION
	SOURCEDIR=main/source/$SECTION
fi

echo "Binaries in $BINARYDIR, sources in $SOURCEDIR"

cd /usr/src/debian/dists/unstable

ERROR=
if [ ! -d $BINARYDIR ]; then echo 'Binary dir not found.' >&2; ERROR=1; fi
if [ ! -d $SOURCEDIR ]; then echo 'Source dir not found.' >&2; ERROR=1; fi
[ "$ERROR" ] && exit 1

shopt -s nullglob

BINARIES=`echo $BINARYDIR/${PACKAGE}_*`
if [ "$BINARIES" ]; then
	echo 'Binaries found in binary dir:'
	echo $BINARIES | xargs -n1
	read -n1 -esp 'Remove: (y/N) ' REMOVE
	if [ "$REMOVE" == y ]; then
		echo -n 'Removing ... '
		echo $BINARIES | xargs rm
		echo 'done.'
	else
		echo 'Aborting.'
		exit
	fi
fi

SOURCES=`echo $SOURCEDIR/${PACKAGE}_*`
if [ "$SOURCES" ]; then
	echo 'Sources found in source dir:'
	echo $SOURCES | xargs -n1
	read -n1 -esp 'Remove: (y/N) ' REMOVE
	if [ "$REMOVE" == y ]; then
		echo -n 'Removing ... '
		echo $SOURCES | xargs rm
		echo 'done.'
	else
		echo 'Aborting.'
		exit
	fi
fi

echo "Moving $DEB to $BINARYDIR ..."
mv -f $DEB $BINARYDIR
echo "Copying $ORIG to $SOURCEDIR ..."
cp -f $ORIG $SOURCEDIR
echo "Copying $DIFF to $SOURCEDIR ..."
cp -f $DIFF $SOURCEDIR
echo "Moving $DSC to $SOURCEDIR ..."
mv -f $DSC $SOURCEDIR
echo "Moving $CHANGES to $SOURCEDIR ..."
mv -f $CHANGES $SOURCEDIR

echo

cd ../..

dpkg-myscan packages

echo

dpkg-myscan sources

echo

echo "Dinstallation of $PACKAGE-$VERSION complete."