9fd5d70968
thanks to unionfs. For instance, nix-env and nixos-rebuild work. The tricky part was to build a Nix database (in the tmpfs/unionfs) which is now necessary to prevent store paths on the CD from being deleted right away because they otherwise wouldn't be valid. * nixos-install: use the /etc/nixos/configuration.nix from the target file system (don't copy it anymore). Since the user is supposed to mount the target file system on /mnt anyway, we may as well require that configuration.nix is placed in /mnt/etc/nixos. This also makes upgrading / reinstalling much easier, since it will automatically use the right configuration.nix. svn path=/nixos/trunk/; revision=10399
69 lines
1.6 KiB
Perl
69 lines
1.6 KiB
Perl
use strict;
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use File::Basename;
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my %storePaths;
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my %refs;
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foreach my $graph (@ARGV) {
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open GRAPH, "<$graph" or die;
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while (<GRAPH>) {
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chomp;
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my $storePath = "$_";
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$storePaths{$storePath} = 1;
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my $deriver = <GRAPH>; chomp $deriver;
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my $count = <GRAPH>; chomp $count;
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my @refs = ();
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for (my $i = 0; $i < $count; ++$i) {
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my $ref = <GRAPH>; chomp $ref;
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push @refs, $ref;
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}
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$refs{$storePath} = \@refs;
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}
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close GRAPH;
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}
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if ($ENV{"printManifest"} eq "1") {
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print "version {\n";
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print " ManifestVersion: 3\n";
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print "}\n";
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foreach my $storePath (sort (keys %storePaths)) {
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my $base = basename $storePath;
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print "localPath {\n";
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print " StorePath: $storePath\n";
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print " CopyFrom: /tmp/inst-store/$base\n";
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print " References: ";
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foreach my $ref (@{$refs{$storePath}}) {
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print "$ref ";
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}
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print "\n";
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print "}\n";
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}
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}
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elsif ($ENV{"printRegistration"} eq "1") {
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# This is the format used by `nix-store --register-validity
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# --hash-given' / `nix-store --load-db'.
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foreach my $storePath (sort (keys %storePaths)) {
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print "$storePath\n";
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print "0000000000000000000000000000000000000000000000000000000000000000\n"; # !!! fix
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print "\n"; # don't care about preserving the deriver
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print scalar(@{$refs{$storePath}}), "\n";
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foreach my $ref (@{$refs{$storePath}}) {
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print "$ref\n";
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}
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}
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}
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else {
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foreach my $storePath (sort (keys %storePaths)) {
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print "$storePath\n";
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}
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}
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