#! /bin/sh

if test $# != 2; then
    cat <<EOF 
$0, to update version information a Debian changelog
usage: $0 CHANGELOG VERSION

This utility checks whether CHANGELOG, which should be a Debian changelog
file, contains a record for VERSION.  If not, then it adds one at the top.
EOF
    exit 1
fi

CHANGELOG=$1
VERSION=$2
if test ! -e "$CHANGELOG"; then
    echo "$0: $CHANGELOG does not exist (use --help for help"
    exit 1
fi

if grep '('$VERSION')' debian/changelog >/dev/null 2>&1; then
    :
else
    echo "Adding change log record for $VERSION to $CHANGELOG"
    {
        cat <<EOF
openvswitch ($VERSION) unstable; urgency=low

  * New upstream version.

 -- Open vSwitch team <dev@openvswitch.org>  `date -u +"%a, %d %b %Y %H:%M:%S +0000"`

EOF
        cat "$CHANGELOG"
    } > "$CHANGELOG".new
    mv "$CHANGELOG".new "$CHANGELOG"
fi