#!/bin/bash
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License.  You may obtain a copy of the License at
#
#   http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied.  See the License for the
# specific language governing permissions and limitations
# under the License.
#
set -e

setglobal SOURCE_DIR = $[ cd $[ dirname $(BASH_SOURCE[0])] && pwd]

if test "$Argc" -ne 2 {
  echo "Usage: $0 <version> <rc-num>"
  exit
}

setglobal version = $1
setglobal rc = $2

if test -d tmp/ {
  echo "Cannot run: tmp/ exists"
  exit
}

setglobal tag = "apache-arrow-$(version)"
setglobal tagrc = "$(tag)-rc$(rc)"

echo "Preparing source for tag $(tag)"

setglobal release_hash = $[git rev-list $tag !2 > /dev/null | head -n 1]

if test -z $release_hash {
  echo "Cannot continue: unknown git tag: $tag"
  exit
}

echo "Using commit $release_hash"

setglobal tarball = "$(tag).tar.gz"

setglobal extract_dir = 'tmp-apache-arrow'
rm -rf $(extract_dir)
# be conservative and use the release hash, even though git produces the same
# archive (identical hashes) using the scm tag
git archive $(release_hash) --prefix $(extract_dir)/ | tar xf -

# build Apache Arrow C++ before building Apache Arrow GLib because
# Apache Arrow GLib requires Apache Arrow C++.
mkdir -p $(extract_dir)/cpp/build
setglobal cpp_install_dir = "$(PWD)/$(extract_dir)/cpp/install"
cd $(extract_dir)/cpp/build
cmake .. \
  -DCMAKE_INSTALL_PREFIX=$(cpp_install_dir) \
  -DARROW_BUILD_TESTS=no
make -j8
make install
cd -

# build source archive for Apache Arrow GLib by "make dist".
cd $(extract_dir)/c_glib
./autogen.sh
./configure \
  PKG_CONFIG_PATH=$cpp_install_dir/lib/pkgconfig \
  --enable-gtk-doc
env LD_LIBRARY_PATH=$cpp_install_dir/lib:$LD_LIBRARY_PATH make -j8
make dist
tar xzf *.tar.gz
rm *.tar.gz
cd -
rm -rf tmp-c_glib/
mv $(extract_dir)/c_glib/apache-arrow-glib-* tmp-c_glib/
rm -rf $(extract_dir)

# replace c_glib/ by tar.gz generated by "make dist"
rm -rf $(tag)
git archive $release_hash --prefix $(tag)/ | tar xf -
rm -rf $(tag)/c_glib
mv tmp-c_glib $(tag)/c_glib

# Create new tarball from modified source directory
tar czf $(tarball) $(tag)
rm -rf $(tag)

$(SOURCE_DIR)/run-rat.sh $(tarball)

# sign the archive
gpg --armor --output $(tarball).asc --detach-sig $(tarball)
gpg --print-md MD5 $(tarball) > $(tarball).md5
sha1sum $tarball > $(tarball).sha1
sha256sum $tarball > $(tarball).sha256
sha512sum $tarball > $(tarball).sha512

# check out the arrow RC folder
svn co --depth=empty https://dist.apache.org/repos/dist/dev/arrow tmp

# add the release candidate for the tag
mkdir -p tmp/$(tagrc)
cp $(tarball)* tmp/$(tagrc)
svn add tmp/$(tagrc)
svn ci -m 'Apache Arrow ${version} RC${rc}' tmp/$(tagrc)

# clean up
rm -rf tmp

echo "Success! The release candidate is available here:"
echo "  https://dist.apache.org/repos/dist/dev/arrow/$(tagrc)"
echo ""
echo "Commit SHA1: $(release_hash)"