#!/bin/sh
# Copyright 1999 Patrick J. Volkerding, Moorhead, MN
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# For the "slackware" dir only, run this script this way:
# mkPACKAGES ./slackware/*/*.t?z > PACKAGES.TXT

# Return a package name that has been stripped of the dirname portion
# and any of the valid extensions (only):
pkgbase() {
  echo $(basename ${1/%.t[blxg]z/})
}

TZ=/usr/share/zoneinfo/UTC
export TZ
rm -rf /tmp/packages$$
mkdir /tmp/packages$$
# Running K totals, later converted to MB:
CTOTAL=0
UTOTAL=0
for file in $* ; do
  DIR=`dirname $file`
  # Avoid problems from using '.tgz' as an abbreviation for '.tar.gz' in
  # source packages:
  if echo $DIR | grep source 1> /dev/null 2> /dev/null ; then
    continue
  fi
  FILE=$(pkgbase $file)
  DATE="`ls -l $file | cut -b43-54`"
  COMPSIZE=$(du -s $file | cut -f 1)
  CTOTAL=`expr $CTOTAL + $COMPSIZE`
  if [ ! -d $HOME/.uncompressed-packages ]; then
    mkdir -p $HOME/.uncompressed-packages
  fi
  if [ -r $HOME/.uncompressed-packages/$FILE ]; then
    FULLSIZE=$(cat $HOME/.uncompressed-packages/$FILE)
  else
    # Determine extension:
    packageext="$( echo $file | rev | cut -f 1 -d . | rev)"
    # Determine compressor utility:
    case $packageext in
    'tgz' )
      packagecompression=gzip
      ;;
    'tbz' )
      packagecompression=bzip2
      ;;
    'tlz' )
      packagecompression=lzma
      ;;
    'txz' )
      packagecompression=xz
      ;;
    esac
    cat $file | $packagecompression -dc | dd 1> /dev/null 2> $HOME/.uncompressed-packages/tmpsize$$
    FULLSIZE="$(expr $(cat $HOME/.uncompressed-packages/tmpsize$$ | head -n 1 | cut -f 1 -d +) / 2)"
    echo $FULLSIZE > $HOME/.uncompressed-packages/$FILE
    rm -f $HOME/.uncompressed-packages/tmpsize$$
  fi
  UTOTAL=`expr $UTOTAL + $FULLSIZE`
  SUFFIX=`basename $DIR`
  echo "PACKAGE NAME:  $(basename $file)" > /tmp/packages$$/$FILE
  echo "PACKAGE LOCATION:  $DIR" >> /tmp/packages$$/$FILE
#  echo "PACKAGE LAST MODIFIED:  $DATE" >> /tmp/packages$$/$FILE
  echo "PACKAGE SIZE (compressed):  $COMPSIZE K" >> /tmp/packages$$/$FILE
  echo "PACKAGE SIZE (uncompressed):  $FULLSIZE K" >> /tmp/packages$$/$FILE
  echo "PACKAGE DESCRIPTION:" >> /tmp/packages$$/$FILE
  if [ -r $DIR/disk$SUFFIX ]; then
    grep -a "^$FILE:" $DIR/disk$SUFFIX | uniq >> /tmp/packages$$/$FILE
  elif [ -r $DIR/$FILE.txt ]; then
    cat $DIR/$FILE.txt | grep -a : | uniq >> /tmp/packages$$/$FILE
  else
    grep -a "^$FILE:" $DIR/package_descriptions 2> /dev/null | uniq >> /tmp/packages$$/$FILE
  fi
  echo >> /tmp/packages$$/$FILE
done
# Convert totals from K to MB:
CTOTAL=`expr $CTOTAL / 1024`
UTOTAL=`expr $UTOTAL / 1024`
echo
echo "PACKAGES.TXT;  `date`"
echo
echo "This file provides details on the Slackware packages found"
if echo $1 | grep -F slakware 1> /dev/null 2> /dev/null ; then
  echo "in the ./slakware/ directory."
elif echo $1 | grep -F pasture 1> /dev/null 2> /dev/null ; then
  echo "in the ./pasture/ directory."
elif echo $1 | grep -F extra 1> /dev/null 2> /dev/null ; then
  echo "in the ./extra/ directory."
elif echo $1 | grep -F slackware64 1> /dev/null 2> /dev/null ; then
  echo "in the ./slackware64/ directory."
elif echo $1 | grep -F slackware 1> /dev/null 2> /dev/null ; then
  echo "in the ./slackware/ directory."
elif echo $1 | grep -F contrib 1> /dev/null 2> /dev/null ; then
  echo "in the ./contrib/ directory."
elif echo $1 | grep -F testing 1> /dev/null 2> /dev/null ; then
  echo "in the ./testing/ directory."
elif echo $1 | grep -F patches 1> /dev/null 2> /dev/null ; then
  echo "in the ./patches/ directory."
else
  echo "in this directory."
fi
echo
echo "Total size of all packages (compressed):  $CTOTAL MB"
echo "Total size of all packages (uncompressed):  $UTOTAL MB"
echo
echo
cat /tmp/packages$$/*
echo
rm /tmp/packages$$/*
rmdir /tmp/packages$$