#!/bin/sh -e

#

# Build a Mercurial debian package from the current repo

#

# Tested on Jessie (stable as of original script authoring.)

. $(dirname $0)/packagelib.sh

BUILD=1

CLEANUP=1

DISTID=`(lsb_release -is 2> /dev/null | tr '[:upper:]' '[:lower:]') || echo debian`

CODENAME=`lsb_release -cs 2> /dev/null || echo unknown`

while [ "$1" ]; do

    case "$1" in

    --distid )

        shift

        DISTID="$1"

        shift

        ;;

    --codename )

        shift

        CODENAME="$1"

        shift

        ;;

    --cleanup )

        shift

        BUILD=

        ;;

    --build )

        shift

        CLEANUP=

        ;;

    * )

        echo "Invalid parameter $1!" 1>&2

        exit 1

        ;;

    esac

done

trap "if [ '$CLEANUP' ] ; then rm -r '$PWD/debian' ; fi" EXIT

set -u

if [ ! -d .hg ]; then

    echo 'You are not inside a Mercurial repository!' 1>&2

    exit 1

fi

gethgversion

debver="$version"

if [ -n "$type" ] ; then

    debver="$debver~$type"

fi

if [ -n "$distance" ] ; then

    debver="$debver+$distance-$node"

fi

control=debian/control

changelog=debian/changelog

if [ "$BUILD" ]; then

    if [ -d debian ] ; then

        echo "Error! debian control directory already exists!"

        exit 1

    fi

    cp -r $PWD/contrib/debian debian

    chmod -R 0755 debian

    # This looks like sed -i, but sed -i behaves just differently enough

    # between BSD and GNU sed that I gave up and did the dumb thing.

    sed "s/__VERSION__/$debver/" < $changelog > $changelog.tmp

    date=$(date --rfc-2822)

    sed "s/__DATE__/$date/" < $changelog.tmp > $changelog

    rm $changelog.tmp

    debuild -us -uc -b

    if [ $? != 0 ]; then

        echo 'debuild failed!'

        exit 1

    fi

fi

if [ "$CLEANUP" ] ; then

    echo

    OUTPUTDIR=${OUTPUTDIR:=packages/$DISTID-$CODENAME}

    mkdir -p "$OUTPUTDIR"

    find ../mercurial*.deb ../mercurial_*.build ../mercurial_*.changes \

          -type f -newer $control -print0 | \

      xargs -Inarf -0 mv narf "$OUTPUTDIR"

    echo "Built packages for $debver:"

    find "$OUTPUTDIR" -type f -newer $control -name '*.deb'

fi