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Make initrd and the kernel builds repeatable.

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This commit is contained in:
Alexander Kjeldaas 2013-08-16 02:42:11 +02:00
parent c69eb7c2c1
commit f67015cae4
5 changed files with 35 additions and 4 deletions
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20
pkgs/build-support/kernel/cpio-clean.pl Normal file
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@ -0,0 +1,20 @@
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);

5
pkgs/build-support/kernel/make-initrd.nix
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@ -12,10 +12,10 @@
# `contents = {object = ...; symlink = /init;}' is a typical
# argument.
{stdenv, perl, cpio, contents, ubootChooser, compressor}:
{stdenv, perl, perlArchiveCpio, cpio, contents, ubootChooser, compressor}:
let
inputsFun = ubootName : [perl cpio]
inputsFun = ubootName : [perl cpio perlArchiveCpio ]
++ stdenv.lib.optional (ubootName != null) [ (ubootChooser ubootName) ];
makeUInitrdFun = ubootName : (ubootName != null);
in
@ -35,6 +35,7 @@ stdenv.mkDerivation {
exportReferencesGraph =
map (x: [("closure-" + baseNameOf x.symlink) x.object]) contents;
pathsFromGraph = ./paths-from-graph.pl;
cpioClean = ./cpio-clean.pl;
crossAttrs = {
nativeBuildInputs = inputsFun stdenv.cross.platform.uboot;

2
pkgs/build-support/kernel/make-initrd.sh
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@ -36,7 +36,7 @@ storePaths=$(perl $pathsFromGraph closure-*)
# Put the closure in a gzipped cpio archive.
mkdir -p $out
(cd root && find * -print0 | cpio -o -H newc --null | $compressor > $out/initrd)
(cd root && find * -print0 | cpio -o -H newc --null | perl $cpioClean | $compressor > $out/initrd)
if [ -n "$makeUInitrd" ]; then
mv $out/initrd $out/initrd.gz

4
pkgs/top-level/all-packages.nix
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@ -354,7 +354,7 @@ let
makeInitrd = {contents, compressor ? "gzip -9"}:
import ../build-support/kernel/make-initrd.nix {
inherit stdenv perl cpio contents ubootChooser compressor;
inherit stdenv perl perlArchiveCpio cpio contents ubootChooser compressor;
};
makeWrapper = makeSetupHook { } ../build-support/setup-hooks/make-wrapper.sh;
@ -6179,6 +6179,8 @@ let
ack = perlPackages.ack;
perlArchiveCpio = perlPackages.ArchiveCpio;
perlcritic = perlPackages.PerlCritic;
planetary_annihilation = callPackage ../games/planetaryannihilation { };

8
pkgs/top-level/perl-packages.nix
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@ -200,6 +200,14 @@ let self = _self // overrides; _self = with self; {
};
};
ArchiveCpio = buildPerlPackage {
name = "Archive-Cpio-0.09";
src = fetchurl {
url = mirror://cpan/authors/id/P/PI/PIXEL/Archive-Cpio-0.09.tar.gz;
sha256 = "1cf8k5zjykdbc1mn8lixlkij6jklwn6divzyq2grycj3rpd36g5c";
};
};
ArchiveZip = buildPerlPackage {
name = "Archive-Zip-1.16";
src = fetchurl {