forked from lix-project/lix
133 lines
3.7 KiB
Text
133 lines
3.7 KiB
Text
#! @perl@ -w -I@libexecdir@/nix
|
|
|
|
use strict;
|
|
use File::Temp qw(tempdir);
|
|
use readmanifest;
|
|
|
|
my $tmpDir = tempdir("nix-pull.XXXXXX", CLEANUP => 1, TMPDIR => 1)
|
|
or die "cannot create a temporary directory";
|
|
|
|
my $binDir = $ENV{"NIX_BIN_DIR"} || "@bindir@";
|
|
my $libexecDir = ($ENV{"NIX_LIBEXEC_DIR"} or "@libexecdir@");
|
|
my $storeDir = ($ENV{"NIX_STORE_DIR"} or "@storedir@");
|
|
my $stateDir = ($ENV{"NIX_STATE_DIR"} or "@localstatedir@/nix");
|
|
my $manifestDir = ($ENV{"NIX_MANIFESTS_DIR"} or "$stateDir/manifests");
|
|
|
|
|
|
# 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'";
|
|
}
|
|
|
|
|
|
# Process the URLs specified on the command line.
|
|
my %narFiles;
|
|
my %localPaths;
|
|
my %patches;
|
|
|
|
my $skipWrongStore = 0;
|
|
|
|
sub downloadFile {
|
|
my $url = shift;
|
|
$ENV{"PRINT_PATH"} = 1;
|
|
$ENV{"QUIET"} = 1;
|
|
my ($dummy, $path) = `$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 $manifest;
|
|
|
|
# First see if a bzipped manifest is available.
|
|
if (system("@curl@ --fail --silent --head '$url'.bz2 > /dev/null") == 0) {
|
|
print "fetching list of Nix archives at `$url.bz2'...\n";
|
|
my $bzipped = downloadFile "$url.bz2";
|
|
|
|
$manifest = "$tmpDir/MANIFEST";
|
|
|
|
system("@bunzip2@ < $bzipped > $manifest") == 0
|
|
or die "cannot decompress manifest";
|
|
|
|
$manifest = (`$binDir/nix-store --add $manifest`
|
|
or die "cannot copy $manifest to the store");
|
|
chomp $manifest;
|
|
}
|
|
|
|
# Otherwise, just get the uncompressed manifest.
|
|
else {
|
|
print "obtaining list of Nix archives at `$url'...\n";
|
|
$manifest = downloadFile $url;
|
|
}
|
|
|
|
my $version = readManifest($manifest, \%narFiles, \%localPaths, \%patches);
|
|
|
|
die "`$url' is not a manifest or it is too old (i.e., for Nix <= 0.7)\n" if $version < 3;
|
|
die "manifest `$url' is too new\n" if $version >= 5;
|
|
|
|
if ($skipWrongStore) {
|
|
foreach my $path (keys %narFiles) {
|
|
if (substr($path, 0, length($storeDir) + 1) ne "$storeDir/") {
|
|
print STDERR "warning: manifest `$url' assumes a Nix store at a different location than $storeDir, skipping...\n";
|
|
exit 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
my $baseName = "unnamed";
|
|
if ($url =~ /\/([^\/]+)\/[^\/]+$/) { # get the forelast component
|
|
$baseName = $1;
|
|
}
|
|
|
|
my $hash = `$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 "$url";
|
|
close URL;
|
|
|
|
my $finalPath = "$manifestDir/$baseName-$hash.nixmanifest";
|
|
|
|
unlink $finalPath if -e $finalPath;
|
|
|
|
symlink("$manifest", "$finalPath")
|
|
or die "cannot link `$finalPath to `$manifest'";
|
|
|
|
# Delete all old manifests downloaded from this URL.
|
|
for my $urlFile2 (glob "$manifestDir/*.url") {
|
|
next if $urlFile eq $urlFile2;
|
|
open URL, "<$urlFile2" or die;
|
|
my $url2 = <URL>;
|
|
chomp $url2;
|
|
close URL;
|
|
next unless $url eq $url2;
|
|
my $base = $urlFile2; $base =~ s/.url$//;
|
|
unlink "${base}.url";
|
|
unlink "${base}.nixmanifest";
|
|
}
|
|
}
|
|
|
|
while (@ARGV) {
|
|
my $url = shift @ARGV;
|
|
if ($url eq "--skip-wrong-store") {
|
|
$skipWrongStore = 1;
|
|
} else {
|
|
processURL $url;
|
|
}
|
|
}
|
|
|
|
|
|
my $size = scalar (keys %narFiles) + scalar (keys %localPaths);
|
|
print "$size store paths in manifest\n";
|