forked from lix-project/lix
99 lines
2.5 KiB
Text
Executable file
99 lines
2.5 KiB
Text
Executable file
#! @perl@ -w @perlFlags@
|
||
|
||
use strict;
|
||
use Nix::Config;
|
||
use Nix::Manifest;
|
||
|
||
my $manifestDir = $Nix::Config::manifestDir;
|
||
|
||
|
||
# Prevent access problems in shared-stored installations.
|
||
umask 0022;
|
||
|
||
|
||
# Create the manifests directory if it doesn't exist.
|
||
if (! -e $manifestDir) {
|
||
mkdir $manifestDir, 0755 or die "cannot create directory ‘$manifestDir’";
|
||
}
|
||
|
||
|
||
# Make sure that the manifests directory is scanned for GC roots.
|
||
my $gcRootsDir = "$Nix::Config::stateDir/gcroots";
|
||
my $manifestDirLink = "$gcRootsDir/manifests";
|
||
if (! -l $manifestDirLink) {
|
||
symlink($manifestDir, $manifestDirLink) or die "cannot create symlink ‘$manifestDirLink’";
|
||
}
|
||
|
||
|
||
# Process the URLs specified on the command line.
|
||
|
||
sub downloadFile {
|
||
my $url = shift;
|
||
$ENV{"PRINT_PATH"} = 1;
|
||
$ENV{"QUIET"} = 1;
|
||
my ($dummy, $path) = `$Nix::Config::binDir/nix-prefetch-url '$url'`;
|
||
die "cannot fetch ‘$url’" if $? != 0;
|
||
die "nix-prefetch-url did not return a path" unless defined $path;
|
||
chomp $path;
|
||
return $path;
|
||
}
|
||
|
||
sub processURL {
|
||
my $url = shift;
|
||
|
||
$url =~ s/\/$//;
|
||
|
||
my $manifest;
|
||
|
||
my $origUrl = $ENV{'NIX_ORIG_URL'} || $url;
|
||
|
||
# First see if a bzipped manifest is available.
|
||
if (system("$Nix::Config::curl --fail --silent --location --head '$url'.bz2 > /dev/null") == 0) {
|
||
print "fetching list of Nix archives at ‘$url.bz2’...\n";
|
||
$manifest = downloadFile "$url.bz2";
|
||
}
|
||
|
||
# Otherwise, just get the uncompressed manifest.
|
||
else {
|
||
print "fetching list of Nix archives at ‘$url’...\n";
|
||
$manifest = downloadFile $url;
|
||
}
|
||
|
||
my $baseName = "unnamed";
|
||
if ($url =~ /\/([^\/]+)\/[^\/]+$/) { # get the forelast component
|
||
$baseName = $1;
|
||
}
|
||
|
||
my $hash = `$Nix::Config::binDir/nix-hash --flat '$manifest'`
|
||
or die "cannot hash ‘$manifest’";
|
||
chomp $hash;
|
||
|
||
my $urlFile = "$manifestDir/$baseName-$hash.url";
|
||
open URL, ">$urlFile" or die "cannot create ‘$urlFile’";
|
||
print URL $origUrl;
|
||
close URL;
|
||
|
||
my $finalPath = "$manifestDir/$baseName-$hash.nixmanifest";
|
||
|
||
unlink $finalPath if -e $finalPath;
|
||
|
||
symlink("$manifest", "$finalPath")
|
||
or die "cannot link ‘$finalPath’ to ‘$manifest’";
|
||
|
||
deleteOldManifests($origUrl, $urlFile);
|
||
}
|
||
|
||
while (@ARGV) {
|
||
my $url = shift @ARGV;
|
||
if ($url eq "--help") {
|
||
exec "man nix-pull" or die;
|
||
} elsif ($url eq "--skip-wrong-store") {
|
||
# No-op, no longer supported.
|
||
} else {
|
||
processURL $url;
|
||
}
|
||
}
|
||
|
||
|
||
# Update the cache.
|
||
updateManifestDB();
|