nixpkgs-suyu/pkgs/build-support/kernel/cpio-clean.pl
2014-04-05 08:41:06 +02:00

20 lines
462 B
Perl

use strict;
# Make inode number, link info and mtime consistent in order to get a consistent hash.
#
# Author: Alexander Kjeldaas <ak@formalprivacy.com>
use Archive::Cpio;
my $cpio = Archive::Cpio->new;
my $IN = \*STDIN;
my $ino = 1;
$cpio->read_with_handler($IN, sub {
my ($e) = @_;
$e->{inode} = $ino;
$ino++;
$e->{nlink} = 1;
$e->{mtime} = 1;
$cpio->write_one(\*STDOUT, $e);
});
$cpio->write_trailer(\*STDOUT);