#!/bin/sh

# NONSTANDARD, do not use as a template!

# Create source tarball from two git repos, with generated version
# number.

# Note that this script doesn't need to be run as root. It does
# need to be able to write to the current directory it's run from.

# Takes one optional argument, which is the commit or tag to create
# a tarball of. With no arg, HEAD is used.

UPSTREAM_VER=2.7
PRGNAM=xatmas2
CLONE_URL=https://github.com/ivop/xatmas2
PRGNAM2=atmas2-manual
CLONE_URL2=https://github.com/ivop/atmas2-manual

set -e

GITDIR=$( mktemp -dt $PRGNAM.git.XXXXXX )
rm -rf $GITDIR
git clone $CLONE_URL $GITDIR

CWD="$( pwd )"
cd $GITDIR

if [ "$1" != "" ]; then
  git reset --hard "$1" || exit 1
fi

GIT_SHA=$( git rev-parse --short HEAD )

DATE=$( git log --date=format:%Y%m%d --format=%cd | head -1 )

VERSION=${UPSTREAM_VER}+${DATE}_${GIT_SHA}

git clone $CLONE_URL2 $PRGNAM2

rm -rf .git $PRGNAM2/.git
find . -name .gitignore -print0 | xargs -0 rm -f

cd "$CWD"
rm -rf $PRGNAM-$VERSION $PRGNAM-$VERSION.tar.xz
mv $GITDIR $PRGNAM-$VERSION
tar cvfJ $PRGNAM-$VERSION.tar.xz $PRGNAM-$VERSION

echo
echo "Created tarball: $PRGNAM-$VERSION.tar.xz"
echo "VERSION=$VERSION"