#!/bin/bash

readonly THISSCRIPT=$0
readonly BRANCH="testing"
readonly DISTRIB="stretch"
readonly DEBIAN_BRANCH="testing"
readonly BUILD_MESSAGE="YunoHost custom build."

source /home/vinaigrette/config/config

function main()
{
    build_metronome
    build_rspamd
    build_unscd
}

function build_metronome()
{

    local PACKAGE="metronome"

    cd $GIT_REPOS/$PACKAGE

    # For some reason metronome version must include a revision ("-x")
    local VERSION="$(dpkg-parsechangelog -S Version 2>/dev/null)+yunohost-1"

    build $PACKAGE $VERSION
}

function build_unscd()
{

    local PACKAGE="unscd"

    cd $GIT_REPOS/$PACKAGE

    local VERSION="$(dpkg-parsechangelog -S Version 2>/dev/null)+yunohost"

    build $PACKAGE $VERSION
}

function build_rspamd()
{
    local PACKAGE="rspamd"

    cd $GIT_REPOS/$PACKAGE
    git checkout master
    git pull origin master

    # Get last tag and deduce version number to user...
    local LASTTAG=$(git tag --list | grep "^1." | sort -n | tail -n1)
    local VERSION="${LASTTAG}+yunohost"
    git checkout $LASTTAG

    build $PACKAGE $VERSION
}

function build()
{
    local PACKAGE=$1
    local VERSION=$2

    # SVERSION is VERSION without the -1 at the end ...
    local SVERSION=$(echo $VERSION | tr '-' ' ' | awk '{print $1}')

    cd $GIT_REPOS/$PACKAGE

    # Tweak the changelog temporarily
    echo "> Setting version in changelog to ${VERSION}"
    rm -f debian/changelog.dch
    cp debian/changelog debian/changelog.old
    dch --package "${PACKAGE}" \
        --force-bad-version \
	-v "${VERSION}" \
	-D "${DEBIAN_BRANCH}" \
	--force-distribution \
	$BUILD_MESSAGE \
        > /dev/null 2>&1

    # Create temporary folder
    TMP_FOLDER=$(mktemp -d)

    # Extract git archive a desired tag
    echo "> Exporting in $TMP_FOLDER ...  "
    git ls-files | xargs tar -czf archive.tar.gz
    cat archive.tar.gz | tar -xz -C $TMP_FOLDER
    # For some reason, these wants archive named
    # e.g. metronome_x.y.z+stuff.orig.tar.gz
    # in the parent folder...
    mv archive.tar.gz $TMP_FOLDER/../${PACKAGE}_${SVERSION}.orig.tar.gz

    # Build Debian package
    echo "> Starting build ..."
    cd $TMP_FOLDER
    $BUILD_DEB $DISTRIB $BRANCH .

    # Restore changelog
    echo "> Restoring previous changelog"
    cd $GIT_REPOS/$PACKAGE
    cp debian/changelog.old debian/changelog
    rm debian/changelog.old
}

main