#!/bin/sh

set -e

if [ $# -ne 1 ]; then
  echo "usage: $0 NEWVERSION"
  exit 1
fi

old_source=$(dpkg-parsechangelog -SSource)
old_version=${old_source##ruby}

new_version="$1"
new_source="ruby${new_version}"
new_api_version="${new_version}.0"

files_to_change=$(grep -rl "${old_source}" debian/ | grep -v changelog)

set -x
sed -i -e "s/${old_source}/${new_source}/g; s/${old_version}.\[0-9]/${new_api_version}/g; s/${old_version}/${new_version}/g" $files_to_change

rename "s/${old_source}/${new_source}/" debian/*${old_source}*

# manpages
sed -i -e "s/\(gem\|rdoc\)${old_version}/\1${new_version}/gi" \
	debian/manpages/* debian/*.manpages
rename "s/${old_version}/${new_version}/g" debian/manpages/*

dch --package "${new_source}" --newversion "${new_version}.0-1" "Ruby $new_version"