#!/usr/bin/perl -w

######################################################################
###
###   IMPORTANT!
###   Please read the warranty and legal notice 
###   at the end of this file!
###
######################################################################

require 5.000;
use lib '/usr/local/bin',"$ENV{HOME}/bin",'/usr/stud/loescher/bin';
use lib 'd:/bin','c:/mydos','c:/bin';
use slutil;
use English;

######################################################################
### Voreinstellungen
######################################################################

$version = '1.51';
$appname = 'packein';


######################################################################
### Hauptprogramm
######################################################################

$MeinName = $0;
$MeinName =~ s/.*[\/\\]([^\/\\]+)/$1/;

FalscherAufrufName($MeinName) unless $MeinName =~ /$appname/;

$TAR   = which('gtar') || 'tar';

&Hilfe if ($#ARGV<0);

printumlaute Kopf();

$FileName          = $ARGV[0];
$OldFileName       = $FileName;
$MoveTempToCurrent = $FALSE;
# Test, ob File im aktuellen Verzeichnis erstellt wird
$_ = $FileName;
unless( /$slashsuch/ ) # Ist absoluter Pfad angegeben?
{
  $FileName = "/tmp/packein.tmp.$$";
  $MoveTempToCurrent = $TRUE;
}

# Einpacken
$kompressor = '';
$kompressor = 'gzip -9'  if ($OldFileName =~ /\.tar\.gz|\.tgz/);
$kompressor = 'bzip2 -9' if ($OldFileName =~ /\.tar\.bz2|\.tbz/);
die "Kann gewünschte Kompression nicht feststellen!\n" if $kompressor eq '';

if (-e $FileName) { die "Ausgabefile $FileName existiert schon!\n" }
if ( $MoveTempToCurrent && (-e $OldFileName) )
{ die "Ausgabefile $OldFileName existiert schon!\n"; }; 
system ("$TAR -cvpf - . | $kompressor > $FileName");
if ($MoveTempToCurrent)
{ system("mv $FileName $OldFileName"); }


######################################################################
### Unterprogramme
######################################################################


sub FalscherAufrufName
{
  my $name = shift;
  print "###\n";
  print "### '$name' gibt es nicht mehr! Bitte 'arex' werwenden!\n";
  print "### (http://www.loescher-online.de/prog.html#arex)\n";
  print "###\n";
  exit;
}


sub Kopf
{
  my $head = "$appname $version   -   von Stephan Löscher";
  return "\n$head\n" . '~' x length($head) . "\n";
}


sub Hilfe
{
  printumlaute
  Kopf().
"Syntax:  $appname filename.tgz
Beispiel: $appname linux12.tgz
Dieses Skript ermöglicht einfaches Einpacken mit Tar und Gzip/Bzip2.
Es wird das aktuelle Verzeichnis samt Unterverzeichnissen eingepackt.
";
  exit;
}


######################################################################
#
# Warranty and legal notice
# ~~~~~~~~~~~~~~~~~~~~~~~~~
#
# Copyright (c) 1998 by Stephan Löscher  -  all rights reserved
# My Address: Stephan Löscher, Dr.Troll-str. 3, 82194 Gröbenzell, Germany
# Email: loescher@gmx.de
# WWW: http://www.loescher-online.de/
#
# This program is freeware.
# It is NOT Public-Domain-Software!
# The author (Stephan Löscher) does NOT give up his copyright, but he 
# reserves his copyright. Usage and copying is free of charge for private
# use, but NOT for commercial use!
# 
# You may and should copy this program free of charge, use it,
# give it to your friends, upload it to a BBS or something similar, under
# the following conditions:
# * Don't charge any money for it. If you upload it to a BBS, make sure that
#    it can be downloaded free (without paying for downloading it, except
#    for usage fees that have to be paid anyway). Small copying fees (up to
#    5 DM or 3 $US) may be charged.
#  * Only distribute the whole original package, with all the files included.
#  * This program may not be part of any commercial product or service without
#    the written permission by the author.
#  * If you want to include this program on a CD-ROM and/or book, please send
#    me a free copy of the CD/book (this is not a must, but I would appreciate
#    it very much).
# 
# Distribution of the program is explicitly desired, provided that the above
# conditions are accepted.
# 
# YOU ARE USING THIS PROGRAM AT YOUR OWN RISK! THE AUTHOR (STEPHAN LÖSCHER)
# IS NOT LIABLE FOR ANY DAMAGE OR DATA-LOSS CAUSED BY THE USE OF THIS PROGRAM
# OR BY THE INABILITY TO USE THIS PROGRAM. IF YOU ARE NOT SURE ABOUT THIS, OR
# IF YOU DON'T ACCEPT THIS, THEN DO NOT USE THIS PROGRAM!
# BECAUSE OF THE VARIOUS HARDWARE AND SOFTWARE ENVIRONMENTS INTO WHICH THIS
# PROGRAM MAY BE PUT, NO WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE IS
# OFFERED.
# GOOD DATA PROCESSING PROCEDURE DICTATES THAT ANY PROGRAM BE THOROUGHLY
# TESTED WITH NON-CRITICAL DATA BEFORE RELYING ON IT.
# 
# No part of the documentation may be reproduced, transmitted, transcribed,
# stored in any retrieval system, or translated into any other language in
# whole or in part, in any form or by any means, whether it be electronic,
# mechanical, magnetic, optical, manual or otherwise, without prior written
# consent of the author, Stephan Löscher.
# 
# You may not make any changes or modifications to this software or this
# manual. You may not decompile, disassemble, or otherwise reverse-engineer
# the software in any way.
# If you got the source, then you are permitted to modify it if you
# contact me and tell me your enhancements.
# You also may include the source as a whole or parts of it into other
# programs, as long as you don't make profit directly out of selling
# the result. If you re-use code of this program then do not remove my name!
# If you include this source-code in your projects, mark it clearly as such
# "... derived from code XXX by Stephan Löscher".
# But don't distribute modified code!
# 
# If you believe your copy of this software has been tampered or altered in
# anyway, shape or form, please contact me immediately! Do not hesitate a
# moment to inform me. Remember, this software should be available to all, in
# the original form, so please do not accept modified or damaged versions of
# my software.
# 
# The author reserves his right for taking legal steps if the copyright or the
# license agreement is violated.
# 
# All product names mentioned in this software are trademarks or registered
# trademarks of their respective owners.
# 
# If you have any questions, ideas, suggestions for improvements or if you find
# bugs (I don't hope so.) then feel free to contact me. (Email is appreciated.)
# 
# I'm not a native english speaker. If you are one and discover some strange
# sounding parts in this documentation or in the program, please, feel free
# to point it out to me and give me suggestions for alteration!
# 
# If the program works for you, and you want to honour my efforts, you are
# invited to donate as much as you want... :)
#
# In any case, if you don't like the restrictions in this license, contact
# me, and we can work something out.
#
######################################################################