#!/bin/sh
#
# Copy the Release definitions to another release and place them in 
# the repository.
#
# Arguments:
#
#		Existing_release Name of the existing release to be
#				"Cloned"
#
#		New_release	 Name to be given to the "Clone"
#
#		revision	OPTIONAL - Tag on the Release package
#				containing the revision of the the 
#				release to be "Cloned"
#				This is added as a means to avoid the
#				difficulty of building a release from 
#				other than the latest version of the
#				Release package
#

Existing_release=$1
New_release=$2
revision=$3

# Set Pre to echo to test modifications, to '' to run

Pre=''
#Pre=echo

UPS_SHELL=sh; export UPS_SHELL
. `$UPS_DIR/bin/ups setup ups`
#setup cdfsoft2 development

# Determine work area (temp space)
 
if [ -z "${My_dir}" ]
then
    My_dir=${SRT_DIST}/releases/development/Release/Scripts; 
    export My_dir
fi

[ `${My_dir}/which cvs | wc -w` -gt 1 ] && setup cvs v1_11_1p1

work_space=`${My_dir}/define_work_area`

CDF_WRITE=`${My_dir}/Find_cvs_root Release|cut -f2 -d','`

# cd work_area

cd $work_space

# get fresh Release stuff

[ -d Release ] && rm -r Release

if [ "${revision}" != "" ]
then
    cvs -Q -d ${CDF_WRITE} checkout -r ${revision} Release   
else
    cvs -Q -d ${CDF_WRITE} checkout Release/Releases
fi

# cd to Release area

cd Release/Releases

if [ ! -f ${Existing_release}.newrel ]
then
    echo ""
    echo $Existing_release does not exist - exiting
    exit 1
fi

if [ -f ${New_release}.newrel ]
then
    echo ""
    echo $New_release exists - exiting
    exit 1
fi

touch ${New_release}.newrel

# copy existing files to define new release

#for f in newrel
#do
#    cp ${Existing_release}.${f} ${New_release}.${f}
#done
while read package version
do
    [ -z ${version} ] && continue
    echo "$package $version" >> ${New_release}.newrel
done < ${Existing_release}.newrel

# put release info back into repository

$Pre cvs -Q add ${New_release}.*

$Pre cvs -Q commit -m "Cloned ${New_release} from ${Existing_release}"

echo ""
echo Successfully cloned ${New_release} from ${Existing_release}

if [ "${Pre}" = "" ]
then
    cd $work_space
    rm -r Release
else
    diff $Existing_release.newrel $New_release.newrel
    cd $work_space
    rm -r Release
fi