#!/bin/bash

if [ $# -ne 3 -a $# -ne 4 ]; then
    echo "usage: $(basename $0) [-f] <packagename> <repo> <arch>"
    echo "  -f  Force building. Skip license checks"
    exit 1
fi

. "$(dirname $0)/../db-functions"
. "$(dirname $0)/../config"

FORCE=0
if [ "$1" = "-f" ]; then
    FORCE=1
    shift
fi

packagename="$1"
reponame="$2"
_arch="$3"

srcpath="$FTP_BASE/sources/"
logpath="/var/log/sourceballs/"

WORKDIR="/tmp/make-sourceball.$packagename.$UID"

cleanup() {
    restore_umask
    rm -rf "$WORKDIR"
    [ "$1" ] && exit $1
}

ctrl_c() {
    echo "Interrupted" >&2
    cleanup 0
}

die() {
    echo -e "$*" >&2
    cleanup 1
}

pkgname_from_src() {
    local tmp
    tmp=${1##*/}
    tmp=${tmp%$SRCEXT}
    for a in ${ARCHES[@]}; do
        tmp=${tmp%-$a}
    done
    tmp=${tmp%-any}
    echo ${tmp%-*-*}
}

pkgver_from_src() {
    tmp=${1##*/}
    tmp=${tmp%$SRCEXT}
    for a in ${ARCHES[@]}; do
        tmp=${tmp%-$a}
    done
    tmp=${tmp%-any}
    echo $tmp | sed 's|.*-\(.*-.*\)$|\1|g'
}

create_srcpackage() {
    if [ -d "$1" ]; then
        pushd "$1" >/dev/null
        . "$BUILDSCRIPT"
	if ! [ $FORCE == 1 ] && ! chk_license ${license[@]} ; then
            #Removed so as not to clutter failed.txt
            #echo -e "\t$packagename license (${license[@]}) does not require source tarballs" >&2
            cleanup 0
        else
            echo "Creating source tarball for $packagename-$pkgver-$pkgrel"
        fi

        local logfile="$logpath/$packagename"
        if ! /usr/bin/makepkg --allsource --ignorearch >"$logfile" 2>&1; then
            popd >/dev/null
            /bin/gzip -f -9 "$logfile"
            die "\tFailed to download source for $packagename-$pkgver-$pkgrel ($reponame-$_arch)"
        fi
        /bin/rm -f "$logfile"{,.gz}

        local pkg_file="${packagename}-${pkgver}-${pkgrel}${SRCEXT}"

        if [ ! -d "$srcpath" ]; then
            mkdir -p "$srcpath"
        fi
        cp "$pkg_file" "$srcpath"

        popd >/dev/null

        return 0
    fi
}

remove_old() {
    if [ -d "$1" ]; then
        pushd "$1" >/dev/null
        PKGVERS=""
        for repo in *; do
            cd "$repo"
            . "$BUILDSCRIPT"
            PKGVERS="$PKGVERS $pkgver-$pkgrel"
            cd ..
        done

        for srcpkg in "$srcpath/$packagename-"*; do
            [ -f "$srcpkg" ] || continue
            if [ "$(pkgname_from_src $srcpkg)" == "$packagename" ]; then
                skip=0
                pver="$(pkgver_from_src $srcpkg)"
                for v in $PKGVERS; do
                    if [ "$v" = "$pver" ]; then
                        skip=1
                        break
                    fi
                done
                if [ $skip -ne 1 ]; then 
                    mv "$srcpkg" $SOURCE_CLEANUP_DESTDIR
                fi
            fi
        done

        popd >/dev/null
    fi
}

trap ctrl_c 2
trap cleanup 0 1

set_umask
/bin/mkdir -p "$WORKDIR"
/bin/mkdir -p "$logpath"
cd "$WORKDIR"

if /usr/bin/svn export -q "$SVNREPO/$packagename" $packagename; then
    remove_old "$packagename/repos/"
    create_srcpackage "$packagename/repos/$reponame-$_arch"
else
    die "\tPackage '$packagename' does not exist in repo '$reponame-$_arch'"
fi