#!/bin/bash
#
# mktarball: Make a release tarball (including xen, qemu, and qemu-traditional)
#
# Takes 2 arguments, the path to the dist directory and the version
set -ex

function git_archive_into {
    mkdir -p "$2"

    git --git-dir="$1"/.git \
	archive --format=tar HEAD | \
	tar Cxf "$2" -
}

if [[ -z "$1" || -z "$2" ]] ; then
  echo "usage: $0 path-to-XEN_ROOT xen-version"
  exit 1
fi

xen_root="$1"
desc="$2"

tdir="$xen_root/dist/tmp.src-tarball"

rm -rf $tdir

mkdir -p $tdir

git_archive_into $xen_root $tdir/xen-$desc

# We can't use git_archive_into with qemu upstream because it uses
# git-submodules.  git-submodules are an inherently broken git feature
# which should never be used in any circumstance.  Unfortunately, qemu
# upstream uses them.  Relevantly for us, git archive does not work
# properly when there are submodules.
(
    cd $xen_root/tools/qemu-xen-dir-remote
    # if it's not clean, the qemu script will call `git stash' !
    git --no-pager diff --stat HEAD
    scripts/archive-source.sh $tdir/xen-$desc/tools/qemu-xen.tar
    cd $tdir/xen-$desc/tools
    mkdir qemu-xen
    tar <qemu-xen.tar Cxf qemu-xen -
    rm qemu-xen.tar
)

git_archive_into $xen_root/tools/qemu-xen-traditional-dir-remote $tdir/xen-$desc/tools/qemu-xen-traditional

git_archive_into $xen_root/extras/mini-os-remote $tdir/xen-$desc/extras/mini-os

GZIP=-9v tar cz -f $xen_root/dist/xen-$desc.tar.gz -C $tdir xen-$desc

echo "Source tarball in $xen_root/dist/xen-$desc.tar.gz"