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Allow both bzip2 and xz compression

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This commit is contained in:
Eelco Dolstra 2012-07-01 18:46:38 -04:00
parent 000132cbd1
commit f4190c38ba
3 changed files with 67 additions and 29 deletions
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19
scripts/download-from-binary-cache.pl.in
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@ -4,7 +4,7 @@ use strict;
use Nix::Config;
use Nix::Store;
my @binaryCacheUrls = ("file:///tmp/binary-cache");
my @binaryCacheUrls = ("file:///tmp/binary-cache2");
sub getInfoFrom {
my ($storePath, $pathHash, $binaryCacheUrl) = @_;
@ -15,14 +15,15 @@ sub getInfoFrom {
print STDERR "GOT CURL REPLY ", $? >> 8, "\n";
return undef;
}
my ($storePath2, $url, $fileHash, $fileSize, $narHash, $narSize, $deriver);
my ($storePath2, $url, $compression, $fileHash, $fileSize, $narHash, $narSize, $deriver);
my @refs;
foreach my $line (split "\n", $s) {
$line =~ /^(.*): (.*)$/ or return undef;
if ($1 eq "StorePath") { $storePath2 = $2; }
elsif ($1 eq "URL") { $url = $2; }
elsif ($1 eq "CompressedHash") { $fileHash = $2; }
elsif ($1 eq "CompressedSize") { $fileSize = int($2); }
elsif ($1 eq "Compression") { $compression = $2; }
elsif ($1 eq "FileHash") { $fileHash = $2; }
elsif ($1 eq "FileSize") { $fileSize = int($2); }
elsif ($1 eq "NarHash") { $narHash = $2; }
elsif ($1 eq "NarSize") { $narSize = int($2); }
elsif ($1 eq "References") { @refs = split / /, $2; }
@ -34,6 +35,7 @@ sub getInfoFrom {
}
return
{ url => $url
, compression => ($compression || "bzip2")
, fileHash => $fileHash
, fileSize => $fileSize
, narHash => $narHash
@ -64,7 +66,14 @@ sub downloadBinary {
cache: foreach my $binaryCacheUrl (@binaryCacheUrls) {
my $info = getInfoFrom($storePath, $pathHash, $binaryCacheUrl);
if (defined $info) {
if (system("$Nix::Config::curl --fail --location $binaryCacheUrl/$info->{url} | $Nix::Config::xz -d | $Nix::Config::binDir/nix-store --restore $storePath") == 0) {
my $decompressor;
if ($info->{compression} eq "bzip2") { $decompressor = "$Nix::Config::bzip2 -d"; }
elsif ($info->{compression} eq "xz") { $decompressor = "$Nix::Config::xz -d"; }
else {
print STDERR "unknown compression method ‘$info->{compression}’\n";
next;
}
if (system("$Nix::Config::curl --fail --location $binaryCacheUrl/$info->{url} | $decompressor | $Nix::Config::binDir/nix-store --restore $storePath") == 0) {
return 1;
}
}