diff -r 94a50c69de28 -r 496ee9b0f488 bin/catter --- a/bin/catter Thu Jul 28 12:21:00 2011 +0200 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,112 +0,0 @@ -#! /usr/bin/perl -# Eigentlich geht das selbe mit: -# grep '^[[:space:]]*[[:digit:]]' IDX-file | tr -d | cut -f4 -d' ' | while read f; do -# cat DATA/$f || zcat DATA/$f.gz -# done -# ODER -# perl -ne '/^\s*\d/ and print "DATA/" . (split)[2] . "\n"' IDX-File | while read f; do -# cat DATA/$f || zcat DATA/$f.gz -# done - -use 5.010; -use strict; -use warnings; -use File::Basename; -use Cwd qw(abs_path); -use autodie qw(:all); -use Pod::Usage; -use Getopt::Long; -use IO::Uncompress::Gunzip qw(gunzip $GunzipError); - -use constant KiB => 1024; -use constant MiB => 1024 * KiB; -use constant GiB => 1024 * MiB; -use constant ME => basename $0; - -sub find_data_dir; - -MAIN: { - - Getopt::Long::Configure(qw(Bundling)); - GetOptions( - "h|help" => sub { pod2usage(-verbose => 1, -exit => 0) }, - "m|man" => sub { - pod2usage( - -verbose => 2, - -exit => 0, - -noperldoc => system( - "perldoc -V 1>/dev/null - 2>&1" - ) - ); - }, - ) - and @ARGV == 2 - or pod2usage; - - my $idx = shift; - my $dst = shift; - my $blocksize = undef; - my $data = find_data_dir($idx); - - open(my $fh => $idx); - { local $/ = ""; $_ = <$fh>; } - /^format:\s*1$/m or die ME . ": expected index format 1\n"; - ($blocksize) = /^blocksize:\s*(\d+)/m or die ME . ": no blocksize found\n"; - - my $out; - if ($dst eq "-") { open($out => ">&STDOUT") } - else { open($out => ">", $dst) } - - while (<$fh>) { - next if /^#/; - my ($blk, $hash, $path) = split; - my ($in, $buffer); - - if (-f "$data/$path") { - open($in => "$data/$path"); - binmode($in); - local $/ = \$blocksize; - $buffer = <$in>; - } - elsif (-f "$data/$path.gz") { - open($in => "$data/$path.gz"); - binmode($in); - gunzip($in => \$buffer) - or die $GunzipError; - } - else { - die ME . ": Can't open $data/$path: $!\n"; - } - print {$out} $buffer; - close($in); - } - close($out); - close($fh); -} - -sub find_data_dir { - for (my $dir = shift ; $dir ne "/" ; $dir = abs_path("$dir/..")) { - return "$dir/data" if -d "$dir/data" and -d "$dir/idx"; - } - die ME . ": no data directory found!\n"; -} - -__END__ - -=head1 NAME - - catter - cats the blocks of the imager - -=head1 SYNOPSIS - - catter {idx} {destination} - -=head1 DESCRIPTION - -The B takes all the blocks from the IDX file and -cats them as one data stream. The destination can be any block device, -a file name or even B<-> (STDOUT). - - -=cut