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#!/usr/bin/perl
use strict;
use packdrake;
#- general information.
my $default_size = 400000;
my $default_ratio = 6;
sub usage {
die qq(packdrake version $packdrake::VERSION
Copyright (C) 2000-2004 Mandrakesoft.
This is free software and may be redistributed under the terms of the GNU GPL.
usage:
--help - print this help message.
--build <file> - build archive <file> with filenames given on
standard input.
-[1..9] - select appropriate compression ratio, $default_ratio by default.
--dir <srcdir> - set source directory where to search files, "." by default.
--size <cmd> - set maximun chunk size, $default_size by default.
--method <cmd> - select standard compression command method, default
is set according to archive filename, example is
/bin/gzip or /usr/bin/bzip2.
--compress <cmd> - select compression command.
--uncompress <cmd> - select uncompression command.
--extract <file> <dir> - extract archive <file> contents to directory <dir>,
specific file to extract are given on command line.
--uncompress <cmd> - override uncompression method in archive <file>.
--list <file> - list contents of archive.
--cat <file> - dump archive, only supported with gzip and bzip2,
this write the contents of all file in archive.
--quiet - quiet operation
);
}
my ($file, $mode, $dir, $size, $method, $compress, $uncompress, $ratio, $quiet);
my @nextargv = (\$file);
my @list;
#- some quite useful error message.
my $error_mode = "packdrake: choose only --build, --extract, --list or --cat\n";
foreach (@ARGV) {
/^--help$/ and do { usage; next };
/^--build$/ and do { $mode and die $error_mode; $mode = "build"; @nextargv = (\$file); next };
/^--extract$/ and do { $mode and die $error_mode; $mode = "extract"; @nextargv = (\$file, \$dir); next };
/^--list$/ and do { $mode and die $error_mode; $mode = "list"; @nextargv = (\$file); next };
/^--cat$/ and do { $mode and die $error_mode; $mode = "cat"; @nextargv = (\$file); next };
/^--dir$/ and do { push @nextargv, \$dir; next };
/^--size$/ and do { push @nextargv, \$size; next };
/^--method$/ and do { push @nextargv, \$method; next };
/^--compress$/ and do { push @nextargv, \$compress; next };
/^--uncompress$/ and do { push @nextargv, \$uncompress; next };
/^--quiet$/ and $quiet = 1, next;
/^-(.*)$/ and do { foreach (split //, $1) {
/[1-9]/ and do { $ratio = $_; next };
/b/ and do { $mode and die $error_mode; $mode = "build"; @nextargv = (\$file); next };
/x/ and do { $mode and die $error_mode; $mode = "extract"; @nextargv = (\$file, \$dir); next };
/l/ and do { $mode and die $error_mode; $mode = "list"; @nextargv = (\$file); next };
/c/ and do { $mode and die $error_mode; $mode = "cat"; @nextargv = (\$file); next };
/d/ and do { push @nextargv, \$dir; next };
/s/ and do { push @nextargv, \$size; next };
/m/ and do { push @nextargv, \$method; next };
die qq(packdrake: unknown option "-$1", check usage with --help\n) } next };
$mode =~ /extract|list|cat/
or @nextargv
or die qq(packdrake: unknown option "$_", check usage with --help\n);
my $ref = shift @nextargv;
$ref ? ($$ref = $_) : push @list, $_;
$mode ||= "list";
}
#- examine and lauch.
$file or die "packdrake: no archive filename given, check usage with --help\n";
$size ||= $default_size;
$ratio ||= $default_ratio;
unless ($method) {
$file =~ /\.cz$/ and $method = "gzip";
$file =~ /\.cz2$/ and $method = "bzip2";
}
$compress ||= "$method -$ratio";
$uncompress ||= "$method -d";
$mode =~ /extract/ && !$dir && !@list and ($mode, @list) = ('list', $file);
for ($mode) {
/build/ and do { packdrake::build_archive(\*STDIN, $dir, $file, $size, $compress, $uncompress); last };
/extract/ and do {
my $packer = new packdrake($file, quiet => $quiet);
$packer->extract_archive($dir, @list);
last;
};
/list/ and do { packdrake::list_archive($file, @list); last };
/cat/ and do { packdrake::cat_archive($file, @list); last };
die "packdrake: internal error, unable to select right mode?\n";
}
__END__
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