#!/bin/bash

if [ "$#" -ne 1 ]; then
	echo "Usage: $0 <pocket>" 1>&2
	exit 1
fi
pocket="$1"

case "$pocket" in
proposed)			pocket_list="-$pocket -updates -release" ;;
updates|security)		pocket_list="-$pocket -release" ;;
release)			pocket_list="-release" ;;
*)
	echo "$0: $pocket: unknown archive pocket" 1>&2
	exit 1
	;;
esac

# find our changelog.
debian=$(awk -F= '($1 == "DEBIAN") { print $2 }' <debian/debian.env)

# identify the current series
series=$(dpkg-parsechangelog -l"$debian/changelog" -SDistribution)
if [ "$series" = "UNRELEASED" ]; then
	series=$(dpkg-parsechangelog -l"$debian/changelog" -c1 -o1 -SDistribution)
fi

# Determine if we have any updates.
: >"debian/dkms-versions.new"
while read package version
do
	for pocket_raw in $pocket_list
	do
		pocket="${pocket_raw#-release}"
		read x x pocket_version x <<EOL
$(rmadison -a source -s "$series$pocket" $package)
EOL
		[ "$pocket_version" != '' ] && break
	done
	if [ "$pocket_version" = '' ]; then
		echo "$0: $package: no version found in $pocket_list" 1>&2
		exit 1
	else
		echo "$package: $pocket_version found in $pocket_raw"
	fi
	if [ "$version" != "$pocket_version" ]; then
		echo "$package: updated to $pocket_version"
	fi
	echo "$package $pocket_version" >>"debian/dkms-versions.new"
done <"debian/dkms-versions"
if ! cmp -s "debian/dkms-versions.new" "debian/dkms-versions"; then
	mv -f "debian/dkms-versions.new" "debian/dkms-versions"
	git commit -a -s -m "UBUNTU: update dkms package versions"
else
	rm -f "debian/dkms-versions.new"
fi