#!/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 -ex

HADOOP_VERSION=0.22.0

STITCH_FILES="CHANGES.txt LICENSE.txt NOTICE.txt README.txt"

WORKDIR=hadoop-$HADOOP_VERSION

rm -rf $WORKDIR
mkdir $WORKDIR
rm -f $STITCH_FILES

if uname -m | grep -q 64 ; then
  JSVC_URL=http://archive.apache.org/dist/commons/daemon/binaries/1.0.2/linux/commons-daemon-1.0.2-bin-linux-x86_64.tar.gz
else
  JSVC_URL=http://archive.apache.org/dist/commons/daemon/binaries/1.0.2/linux/commons-daemon-1.0.2-bin-linux-i386.tar.gz
fi

# -Dlibrecordio=true
for project in common hdfs mapreduce ; do 
  cd $project
  LDFLAGS="-lcrypto -lm" ant \
    -Dxercescroot=$XERCESCROOT \
    -Djava5.home=$JAVA5_HOME \
    -Dforrest.home=$FORREST_HOME \
    -Dversion=${HADOOP_VERSION} \
    -Dhadoop-common.version=${HADOOP_VERSION} \
    -Dhadoop-hdfs.version=${HADOOP_VERSION} \
    -Djsvc.location=${JSVC_URL} \
    -Dcompile.native=true \
    -Dhadoop.conf.dir=/etc/hadoop/conf \
    -Dlibhdfs=1 -Dfusedfs=true -Dcompile.c++=true -Djdiff.build.dir=build/docs/jdiff \
   api-report bin-package $BUILD_CONTRIB tar \
    "$@"
  
  cat build/hadoop-*.tar.gz | (cd ../$WORKDIR ; tar xzf -)

  for file in $STITCH_FILES ; do
    [ -f $file ] && cat $file >> ../$file
  done

  BUILD_CONTRIB="compile-contrib"
  cd ..
done

cd "$WORKDIR"

# get rid of the version names
mv hadoop-common-* common
mv hadoop-hdfs-* hdfs
mv hadoop-mapred-* mapreduce

# make sure configure scripts are executable
chmod 755 common/src/test/system/c++/runAs/configure hdfs/src/contrib/fuse-dfs/configure

# munge text docs
cp common/{LICENSE,NOTICE,README}.txt .
#rm hdfs/{LICENSE,NOTICE}.txt # same as common
#rm mapred/{LICENSE,NOTICE}.txt # same as common

# we can NOT simply munge the docs directories, since
# index.html is per-component (even though everything else
# doesn't collide). We have to come up with a better way
# of solving this, but lets simply disable it for now
# for dir in docs; do
#  mkdir $dir
#  for proj in common hdfs mapred; do
#    cp -Rp $proj/$dir/* $dir
#  done
# done

# munge the contrib directories
for dir in contrib; do
  mkdir $dir
  for proj in hdfs mapreduce; do
    cp -Rp $proj/$dir/* $dir
  done
done

# munge the bin and conf directories
for dir in bin conf; do
  mkdir $dir
  for proj in common hdfs mapreduce; do
    cp -Rp $proj/$dir/* $dir
  done
done

# munge the lib directory
mkdir lib
for proj in common hdfs mapreduce; do
  cp -Rp $proj/lib/* lib
  rm -r $proj/lib
  # create empty lib directories so that build.xml logic doesn't break
  mkdir $proj/lib
done
rm lib/hadoop-*.jar # hdfs and mapred dependencies on common, hdfs jars

# munge the webapps directory
mkdir webapps
for proj in hdfs mapreduce; do
  cp -Rp $proj/webapps/* webapps
  rm -r $proj/webapps
done

# get the mapred c++ (if compiled)
mkdir c++
for proj in hdfs mapreduce; do
  if [ -d $proj/c++ ]; then
    cp -Rp $proj/c++/* c++
    rm -r $proj/c++
  fi
done

# get our jar files
mv {common,hdfs,mapreduce}/*.jar .

# remove native build files
rm `find . -type f | egrep "\.(P|)o$"`

# tar up the result
cd ..
tar czf hadoop-$HADOOP_VERSION.tar.gz hadoop-$HADOOP_VERSION
mv hadoop-$HADOOP_VERSION build

# FIXME: this is a hack for shv
if [ -d ../../RPMS ] ; then 
  mv hadoop-$HADOOP_VERSION.tar.gz ../../RPMS
elif [ -d ../../../output ] ; then
  mv hadoop-$HADOOP_VERSION.tar.gz ../../../output
fi