#!/bin/sh
#
# A script to determine the cvs (rcs) revision of a file
# as tagged into a given release.
#
# Usage:
#	relrev <release> <module>
#
# 	Where
#		release is the relavent release.
#
#		module is the file (unqualified if local),
#		or package/directory, or package.
#
# Information returned is dependent on information supplied.
# If the file is specified, local or fully qualified 
# (package/directory/file) the the returned information
# is relative to that file.
# If the package/directory is specified, the returned information
# is for each file in the directory.
# If the package (only) is specified, the information is for each
# file in the package.
#

release=${1}
file_spec=${2}

if [ -z "${file_spec}" ] 
then
    echo USAGE:  ${0} 'release module'
    exit
fi
ocvsroot=$CVSROOT
. `/bin/csh -fc '/bin/echo ~cdfsoft'`/cdf2.shrc
setup cdfsoft2 development

o_dir=`pwd`

if [ -f $CDFSOFT2_DIR/Release/Scripts/Find_cvs_root ]
then
    my_dir=$CDFSOFT2_DIR/Release/Scripts
else
    mkdir -p /tmp/$USER/$$
    tmp_dir=/tmp/$USER/$$
    cd $tmp_dir
    cvs -Q checkout Release/Scripts
    if [ ! -f Release/Scripts/Find_cvs_root ]
    then
	echo "Cannot initialize Release tools"
	exit
    fi
    my_dir=$tmp_dir/Release/Scripts
    cd ${o_dir}
fi

work_space=`$my_dir/define_work_area`

cd ${work_space}
cvs -Q checkout Release/Releases/${release}.newrel 2>/dev/null
cd $o_dir
touch ${work_space}/$$.log

if [ ! -f ${work_space}/Release/Releases/${release}.newrel ]
then
    echo Release ${release} is not defined.
    ver_str=v`echo ${release} | tr '.' '_'`
    echo Will check if $file_spec is tagged $ver_str
    tag_check='1'
fi
export CVSROOT
[ "$ocvsroot" != "" ] && CVSROOT=$ocvsroot
if [ ! -f $file_spec ]
then
    cd $work_space
    package=`echo ${file_spec} | cut -f1 -d'/'`
    [ -z "${ver_str}" ] && \
		ver_str=`grep ${package} Release/Releases/${release}.newrel`
    if [ "${ver_str}" != "" ]
    then
	set ${ver_str}
	ver_str=${2}
	[ -z "${ver_str}" ] && ver_str=${1}
    else
	echo "Unable to determine version information for $file_spec"
	exit
    fi

    cvs -Q checkout ${file_spec}
    if [ ! -d ${package} ]
    then
	echo ${file_spec} unknown in cvs repository
	exit 2
    fi
    cvs log -r${ver_str}:${ver_str} ${file_spec} 2>/dev/null >> \
		${work_space}/$$.log
    if [ "${tag_check}" = '1' -a \
		"`grep ${ver_str}: ${work_space}/$$.log`" = "" ]
    then
	echo $file_spec is NOT tagged for $release
	not_tagged='1'
    fi
elif [ -d CVS ]
then
    root=/`cat CVS/Root | cut -f2- -d'/'`
    dir=`cat CVS/Repository | sed "s%${root}%%"`
    pkg=`echo $dir | cut -f2 -d'/'`
    [ -z "${ver_str}" ] &&
	ver_str=`grep $pkg ${work_space}/Release/Releases/${release}.newrel \
		| cut -f2 -d' '`
    cvs log -r${ver_str}:${ver_str} ${file_spec} 2>/dev/null >> \
		${work_space}/$$.log
    if [ "${tag_check}" = '1' -a \
                "`grep ${ver_str}: ${work_space}/$$.log`" = "" ]
    then
        echo $file_spec is NOT tagged for $release
	not_tagged='1'
    fi
fi
files=`grep 'Working file:' ${work_space}/$$.log | wc -l`
if [ $files -eq 1 ]
then
    echo ''
    grep 'Working file:' ${work_space}/$$.log
    grep 'head:' ${work_space}/$$.log
    vstr=`grep "$ver_str:" ${work_space}/$$.log`
    echo ${vstr}
elif [ "${not_tagged}" = "" ]
then
    while read log_str
    do
    	log_str=`echo ${log_str}`

    	ist=`echo ${log_str} | cut -f1 -d':' -s`
    	[ "${ist}" = "" ] && continue

    	if [ "${ist}" = "Working file" ] 
    	then
	    echo ''
    	    echo ${log_str} ' ' Release: ${release}
    	fi


    	[ "${ist}" = "head" ] && echo ${log_str}

    	[ "${ist}" = "${ver_str}" ] && echo ${log_str}

    done < ${work_space}/$$.log
else
    echo Nothing in $file_spec tagged for $release

fi

rm ${work_space}/$$.log
[ -d ${work_space}/Release ] && rm -r ${work_space}/Release
[ -f ${work_space}/file_spec ] && rm -r ${work_space}/file_spec