#!/bin/sh

set -e

DSC="$1"

TMPDIR="$(mktemp -d -p . dpkg-source.XXXX)"

############ upstream

git checkout upstream

( find | grep -v '^./.git/.*' | grep -v './.git$' | xargs rm -rf ) || true

dpkg-source -x --no-copy --skip-debianization ${DSC} ${TMPDIR}

cd "${TMPDIR}"
rm -rf .git
mv $(find -mindepth 1 -maxdepth 1) ../
cd "${OLDPWD}"

rmdir ${TMPDIR}

VERSION="$(awk '/^Version: / { print $2 }' ${DSC} | head -n1)"

FILE_VERSION="$(echo ${VERSION} | awk -F: '{ print $2 }')"
FILE_VERSION="${FILE_VERSION:-${VERSION}}"

git-upstream-add ${VERSION}

############## debian

git checkout debian

git cherry-pick -n upstream

git commit -a -s -S -m "Merging upstream version ${VERSION}."

rm -rf debian

if [ -e $(dirname ${DSC})/$(basename ${DSC} .dsc).diff.gz ]
then
	zcat $(dirname ${DSC})/$(basename ${DSC} .dsc).diff.gz | patch -Np1
fi

if ls $(dirname ${DSC})/$(basename ${DSC} .dsc).debian.tar.* > /dev/null 2>&1
then
	tar xf $(dirname ${DSC})/$(basename ${DSC} .dsc).debian.tar.*
fi

git-debian-add

################ progress-linux / bfh

if git branch | grep -qs progress-linux
then
	BRANCH="progress-linux"
elif git branch | grep -qs bfh
then
	BRANCH="bfh"
fi

git checkout ${BRANCH}

git cherry-pick -n upstream
git commit -a -s -S -m "Merging upstream version ${VERSION}."

git cherry-pick -n debian

DEBIAN_VERSION="$(dpkg-parsechangelog | awk '/^Version: / { print $2 }')"

git commit -a -s -S -m "Merging debian version ${DEBIAN_VERSION}."