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#!/usr/bin/perl | |
# Perl script to add rTorrent fast resume data to torrent files. | |
# Original URL: https://github.com/lethanhviet/autoExport/blob/master/rtorrent_fast_resume.pl | |
# | |
# Usage: | |
# rtorrent_fast_resume.pl [base-directory] < plain.torrent > with_fast_resume.torrent | |
use warnings; | |
use strict; | |
use Convert::Bencode qw(bencode bdecode); | |
$/=undef; | |
my $t = bdecode(scalar <STDIN>); | |
my $d = $ARGV[0]; | |
die "$d is not a directory\n" if $d and not -d $d; | |
$d ||= "."; | |
$d .= "/" unless $d =~ m#/$#; | |
die "No info key.\n" unless ref $t eq "HASH" and exists $t->{info}; | |
my $psize = $t->{info}{"piece length"} or die "No piece length key.\n"; | |
my @files; | |
my $tsize = 0; | |
if (exists $t->{info}{files}) { | |
print STDERR "Multi file torrent: $t->{info}{name}\n"; | |
for (@{$t->{info}{files}}) { | |
push @files, join "/", $t->{info}{name},@{$_->{path}}; | |
$tsize += $_->{length}; | |
} | |
} else { | |
print STDERR "Single file torrent: $t->{info}{name}\n"; | |
@files = ($t->{info}{name}); | |
$tsize = $t->{info}{length}; | |
} | |
my $chunks = int(($tsize + $psize - 1) / $psize); | |
print STDERR "Total size: $tsize bytes; $chunks chunks; ", scalar @files, " files.\n"; | |
die "Inconsistent piece information!\n" if $chunks*20 != length $t->{info}{pieces}; | |
$t->{libtorrent_resume}{bitfield} = $chunks; | |
for (0..$#files) { | |
die "$d$files[$_] not found.\n" unless -e "$d$files[$_]"; | |
my $mtime = (stat "$d$files[$_]")[9]; | |
$t->{libtorrent_resume}{files}[$_] = { priority => 2, mtime => $mtime }; | |
}; | |
print bencode $t; |
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