#!/bin/bash

# This script, create-release.sh, follows the instructions at
# http://internal.greenstone.org/wiki/Generating_Caveats_and_Binaries:_Handy_instructions#Generating_the_64_bit_Linux_Caveat

# IF ON DARWIN: sudo su - nzdl 
# IF ON LINUX: sudo su -
# Then run this script with gs-release-version and rc-number

# http://stackoverflow.com/questions/6482377/bash-shell-script-check-input-argument
if [ $# -eq 0 ]; then
    echo "Run as $0 <version> [release-candidate-number]"    
    echo "E.g. $0 3.06 rc1"
    echo ""
    exit
fi

# String comparisons http://tldp.org/LDP/abs/html/comparison-ops.html
os=`uname`
currmachine=$os
arch=`uname -m`
curruser=`whoami`
if [ "$os" == "Linux" ] && [ "$curruser" != "root" ] ; then
    echo "On linux release VMs, you need to first have run: sudo su -"
    echo ""
    exit
elif [ "$os" == "Darwin" ] && [ "$curruser" != "nzdl" ] ; then
    echo "On mac release machines, you need to first have run: sudo su - nzdl"
    echo ""
    exit
fi


version=$1
if [ -n "$2" ]; then
    versionextra=$2
fi


#######################################################################
# variables that tend to be fixed for a release machine

linuxpath=/home/sjm84
darwinpath=/Volumes/Research/nzdl
toro_relkit_path="${darwinpath}/release-kits"
rata_relkit_path=/home/nzdl/release-kits


#######################################################################

majorversion=3
# if prefixed with 2, then GS2. http://tldp.org/LDP/abs/html/comparison-ops.html
if [[ $version == 2* ]]; then
    majorversion=2;
fi


# Release foldername should use version without dot 
# http://www.linuxquestions.org/questions/linux-newbie-8/bash-command-for-removing-special-characters-from-string-644828/
releasefolder=`echo ${version//[-._]/}`
releasefolder=gs$releasefolder$versionextra


if [ "$os" == "Linux" ]; then
    source ./setup-env.sh
    # 64 bit or 32 bit linux vm
    # http://stackoverflow.com/questions/229551/string-contains-in-bash
    if [[ $arch == *64 ]]; then
	currmachine+="64"
	#/bin/mount --bind /proc /opt/lsb-buildenv-x86_64/proc 
	#chroot /opt/lsb-buildenv-x86_64
    #else
	#/bin/mount --bind /proc /opt/lsb-buildenv-ia32/proc 
	#chroot /opt/lsb-buildenv-ia32
    fi
    export PATH="${linuxpath}/release-kits/bin:$PATH"
    #echo "PATH : $PATH"
    cd "${linuxpath}/snapshots"

elif [ "$os" == "Darwin" ]; then
    kernel_release_ver=`uname -r`    
    if [[ $kernel_release_ver == 12.5* ]]; then
	# toro is 12.5.0
	currmachine+="MountainLion"
	export PATH=$toro_relkit_path/bin:$PATH
    elif [[ $kernel_release_ver == 9.8* ]]; then
	# rata is 9.8.0
	currmachine+="Leopard"
	export PATH="${rata_relkit_path}/bin:$PATH"
    fi

    cd "${darwinpath}/snapshots"
else
    # not a known OS
    echo "Unknown OS $os. Cannot generate release-binary. Exitting."
    echo ""
    exit
fi


mkdir $releasefolder
cd $releasefolder

# create the rk properties file
propfile="rk$majorversion"
propfile+="-build.properties"
touch $propfile

echo "version:$version" > $propfile

# http://stackoverflow.com/questions/3601515/how-to-check-if-a-variable-is-set-in-bash
# boolean operators: http://www.tldp.org/LDP/abs/html/ops.html
if [ -n "$versionextra" ] && [ "$versionextra" != "" ]; then
    echo "version-extra:$versionextra" >> $propfile
fi

# os = Linux|Darwin. We wouldn't be here if the os was windows
# if GS2, add property pointing to server.exe
if [ "$majorversion" == "2" ]; then
    echo "server.exe.location:http://www.greenstone.org/caveat-emptor/latest-server.exe" >> $propfile
fi

# Add in architecture, if 64-bit
# http://stackoverflow.com/questions/229551/string-contains-in-bash
if [[ $arch == *64 ]]; then
    echo "x64:true" >> $propfile
fi

# add an empty line
echo "" >> $propfile

# run `rk3` or `rk2` from the releasefolder
`rk$majorversion`