23bf99b8e2
According to following two benchmarks: - https://www.rootusers.com/gzip-vs-bzip2-vs-xz-performance-comparison/ - http://catchchallenger.first-world.info/wiki/Quick_Benchmark:_Gzip_vs_Bzip2_vs_LZMA_vs_XZ_vs_LZ4_vs_LZO xz has better compression ratio than bzip2 at lowest compression rate. https://github.com/vasi/pixz has been chosen as it can scale compressing over multiple cores linearly. We're using this in snabblab for a month now and it has improved CPU wise the main Hydra server.
53 lines
1.4 KiB
Perl
53 lines
1.4 KiB
Perl
package Hydra::View::NARInfo;
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use File::Basename;
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use Hydra::Helper::CatalystUtils;
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use MIME::Base64;
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use Nix::Manifest;
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use Nix::Store;
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use Nix::Utils;
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use base qw/Catalyst::View/;
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use strict;
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sub process {
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my ($self, $c) = @_;
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my $storePath = $c->stash->{storePath};
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$c->response->content_type('text/x-nix-narinfo'); # !!! check MIME type
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my ($deriver, $narHash, $time, $narSize, $refs) = queryPathInfo($storePath, 1);
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my $info;
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$info .= "StorePath: $storePath\n";
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$info .= "URL: nar/" . basename $storePath. "\n";
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$info .= "Compression: xz\n";
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$info .= "NarHash: $narHash\n";
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$info .= "NarSize: $narSize\n";
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$info .= "References: " . join(" ", map { basename $_ } @{$refs}) . "\n";
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if (defined $deriver) {
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$info .= "Deriver: " . basename $deriver . "\n";
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if (isValidPath($deriver)) {
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my $drv = derivationFromPath($deriver);
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$info .= "System: $drv->{platform}\n";
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}
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}
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# Optionally, sign the NAR info file we just created.
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my $secretKeyFile = $c->config->{binary_cache_secret_key_file};
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if (defined $secretKeyFile) {
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my $secretKey = readFile $secretKeyFile;
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my $fingerprint = fingerprintPath($storePath, $narHash, $narSize, $refs);
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my $sig = signString($secretKey, $fingerprint);
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$info .= "Sig: $sig\n";
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}
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setCacheHeaders($c, 24 * 60 * 60);
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$c->response->body($info);
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return 1;
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}
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1;
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