#! /bin/sh
#
# RTEMS Tools Project (http://www.rtems.org/)
# Copyright 2015-2016 Chris Johns (chrisj@rtems.org)
# All rights reserved.
#
# This file is part of the RTEMS Tools package in 'rtems-tools'.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#

#
# Thsi script packages a package in a tar file.

echo "RTEMS Release Package, v0.1"

#
# Stop on any error
#
set -e

#
# Keep the top where we start.
#
top=${PWD}

#
# The package, version and revision amd maybe a worker script.
#
if [ $# -lt 3 -o $# -gt 4 ]; then
    echo "error: must be 3 or 4 arguments, the package, version," \
	 "release and optionally a worker script."
 exit 1
fi
package=$1
version=$2
revision=$3
if [ $# -eq 4 ]; then
 if [ ! -x ${top}/$4 ]; then
  echo "error: cannot find the worker: $4"
  exit 1
 fi
 worker=${top}/$4
else
 worker=
fi

release=${version}.${revision}
prefix=${package}-${release}

git_remote=git://git.rtems.org/${package}.git
git_local=${package}-release-${release}.git

workspace=ws-${package}

echo "Package: ${package}"
echo "Release: ${release}"
echo "Repo   : ${git_remote}"

if [ ! -e ${release} ]; then
 mkdir ${release}
else
 if [ ! -d ${release} ]; then
  echo "error: ${release} exists and is not a directory."
  exit 1
 fi
fi

#
# Work in a package specific directory in the release directory.
#
cd ${release}
rm -rf ${workspace}
mkdir ${workspace}

cd ${workspace}
echo "git clone ${git_remote} ${git_local}"
git clone ${git_remote} ${git_local}

cd ${git_local}
echo "git archive --format=tar --prefix=${prefix}/ origin/${version}"
git archive --format=tar --prefix=${prefix}/ origin/${version} | \
    xz > ../${prefix}-unstamped.tar.xz
cd ..

echo "tar Jxf ../${prefix}-unstamped.tar.xz"
tar Jxf ${prefix}-unstamped.tar.xz

cd ${prefix}
echo "Creating VERSION: ${release}"
echo "[version]" > VERSION
echo "release = ${release}" >> VERSION
cd ..

#
# Run the worker script if provided. It can perform any package
# specific set up functions. This is done before we finally
# package the release.
#
if [ -n "${worker}" ]; then
 ${worker} ${package} ${version} ${revision} ${top}
fi

#
# The '..' is the release directory.
#
echo "tar cf - ${prefix}"
tar cf - ${prefix} | xz > ../${prefix}.tar.xz

cd ..

rm -rf ${workspace}
cd ..

echo "Created: ${release}/${prefix}.tar.xz"

exit 0