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#/bin/sh
#
# rpm2lsm -- generate Linux Software Map file from RPM meta information
#
# Author:       Eric S. Raymond <esr@thyrsus.com>, 31 July 2002
# Project page: http://www.catb.org/~esr/
#
# Requires fmt(1), awk(1), and rpm(8).

while getopts a:m:k:p: c;
do
  case $c in
   'a') author=$OPTARG;;
   'm') maintainer=$OPTARG;;
   'k') keywords=$OPTARG;;
   'p') platforms=$OPTARG;;
   '?') echo "rpm2lsm: invalid switch specified - aborting."; exit 1;;
  esac
done
shift `expr $OPTIND - 1`

# If no RPM was given, look in the current directory and pick the last
# one in sort order.  That's likely to be the most recent.
if [ -z "$1" ]
then
	set -- *.rpm
	while [ "$2" ]
	do
		shift
	done
fi

# Mine out all the single-token fields we'll need
rpm=$1
set -- `rpm --queryformat="%{name} %{version} %{release}" -qp $rpm`
name=$1
version=$2
release=$3

# Extract and reformat the desciption
description=`rpm --queryformat="%{description}" -qp $rpm | fmt -w 65 | sed '2,$s/^/                /'`

# Who am I?
fullname=`cat /etc/passwd | awk -F : "/^${USER}/ "'{print $5}'`
fullname="${USER}@${HOSTNAME} ($fullname)"

if [ -z "$author" ]
then 
    if [ -f AUTHORS ]
    then
	author=`cat AUTHORS`
    else
	author=$fullname
    fi
fi

# Fill in keywords if present
if [ -n "$keywords" ]
then
    keywords="Keywords:       $keywords\n"
fi

# Default the maintainer field properly
if [ -z "$maintainer" ]
then
    maintainer=`rpm --queryformat="%{packager}" -qp $rpm`
    if [ "$maintainer" = "(none)" ]
    then
        maintainer=$author
    fi
fi

# The date
date=`date '+%Y-%m-%d'`

cat >/usr/tmp/rpm2lsm.$$ <<EOF
Begin3
Title:		%{name}
Version:	%{version}
Entered-date:	${date}
Description:	${description}
${keywords}Author: 	${author}
Maintained-by:	${maintainer}
Primary-site:	%{url}
EOF

# File patterns that we ship 
tarballs="${name}-${version}.tar.gz ${name}-${version}.tgz"
rpms=${name}-${version}-${release}.*.rpm

trap "rm -f /usr/tmp/rpm2lsm.$$"  0 2 15
for file in $tarballs $rpms
do
    if [ -f $file ]
    then
        set -- `du $file`; size=$1
        echo "		${size}	${file}" >>/usr/tmp/rpm2lsm.$$
    fi
done

cat >>/usr/tmp/rpm2lsm.$$ <<EOF
Platforms:      ${platforms:-All}
Copying-policy:	%{license}
End
EOF

format=`cat /usr/tmp/rpm2lsm.$$`
rpm --queryformat="$format" -qp $rpm