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#!/bin/bash
#
# lspkg v0.3: view installed and contents of slackware packages
#
# feedback: rhatto at riseup.net | gpl
#
#  Lspkg is free software; you can redistribute it and/or modify it under the
#  terms of the GNU General Public License as published by the Free Software
#  Foundation; either version 2 of the License, or any later version.
#
#  Lspkg is distributed in the hope that it will be useful, but WITHOUT ANY
#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
#  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License along with
#  this program; if not, write to the Free Software Foundation, Inc., 59 Temple
#  Place - Suite 330, Boston, MA 02111-1307, USA
#

COMMON="/usr/libexec/simplepkg/common.sh"

if [ -f "$COMMON" ]; then
  source $COMMON
else
  echo "error: file $COMMON found, check your `basename $0` installation"
  exit 1
fi

function usage {
  echo "usage: `basename $0` [option expression]"
}

if [ "$1" == "-h" ] || [ "$1" == "--help" ]; then
  usage
  echo "
options are:

   -v, --view: view installed package contents
   -p, --print: print the contents of a package file
   -r, --remove: remove matching packages
   -s, --search: search a file under installed packages
   -d, --description: show matching packages' descriptions
"
elif [ "$1" == "-v" ] || [ "$1" == "--view" ] ; then
  if [ ! -z "$2" ]; then
    if $(ls /var/log/packages/$2* &> /dev/null); then
      for file in $(ls /var/log/packages/$2*); do
        less $file
      done
    else echo $2: package not found on /var/log/packages
    fi
  else
    usage
    exit 1
  fi
elif [ "$1" == "-p" ] && [ "$1" == "--print" ]; then
  if [ -f "$2" ]; then
    tar ztvf $2
  else echo $2: file not found
  fi
elif [ "$1" == "-r" ] && [ "$1" == "--remove" ]; then
  if [ ! -z "$2" ]; then
    if `ls /var/log/packages/$1* &> /dev/null`; then
      removepkg /var/log/packages/$1*
    fi
  fi
elif [ "$1" == "-s" ] || [ "$1" == "--search" ]; then
  if [ ! -z "$2" ]; then
    grep $2 /var/log/packages/*
  fi
elif [ "$1" == "-d" ] || [ "$1" == "--description" ]; then
  if [ ! -z "$1" ]; then
    for file in `lspkg $2`; do
      name="`package_name $file.tgz`"
      echo "package description for $name:"
      echo ""
      grep -e "^$name:" $file | sed -e "s/^$name:/  /"
    done
  else
    usage
    exit 1
  fi
else
  if `ls /var/log/packages/$1* &> /dev/null`; then
    ls /var/log/packages/$1*
  else echo $1: package not found on /var/log/packages 
  fi
fi