mirror of
https://github.com/privatevoid-net/nix-super.git
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70 lines
2 KiB
Perl
70 lines
2 KiB
Perl
#! /usr/bin/perl -w
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my @pushlist;
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foreach my $hash (@ARGV) {
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die unless $hash =~ /^([0-9a-z]{32})$/;
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# Get all paths referenced by the normalisation of the given
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# fstate expression.
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my @paths;
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open PATHS, "nix -qrh $hash 2> /dev/null |" or die "nix -qrh";
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while (<PATHS>) {
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chomp;
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next unless /^\//;
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push @paths, $_;
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}
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close PATHS;
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# For each path, create a Fix expression that turns the path into
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# a Nix archive.
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foreach my $path (@paths) {
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# Hash the path.
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my $phash = `nix-hash $path`;
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$? and die "nix-hash";
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chomp $phash;
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die unless $phash =~ /^([0-9a-z]{32})$/;
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# Construct a name for the Nix archive. If the file is an
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# fstate successor, encode this into the name.
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my $name = $phash;
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if ($path =~ /-s-([0-9a-z]{32}).nix$/) {
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$name = "$name-s-$1";
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}
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$name = $name . ".nar.bz2";
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# Construct a Fix expression that creates a Nix archive.
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my $fixexpr =
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"App(IncludeFix(\"nar/nar.fix\"), " .
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"[ (\"path\", Path(\"$path\", Hash(\"$phash\"), [Include(\"$hash\")]))" .
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", (\"name\", \"$name\")" .
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"])";
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my $fixfile = "/tmp/nix-push-tmp.fix";
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open FIX, ">$fixfile";
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print FIX $fixexpr;
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close FIX;
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# Instantiate a Nix expression from the Fix expression.
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my $nhash = `fix $fixfile`;
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$? and die "instantiating Nix archive expression";
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chomp $nhash;
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die unless $nhash =~ /^([0-9a-z]{32})$/;
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# Realise the Nix expression.
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my $npath = `nix -qph $nhash 2> /dev/null`;
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$? and die "creating Nix archive";
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chomp $npath;
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push @pushlist, $npath;
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print "$path -> $npath\n";
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}
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}
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# Push the prebuilts to the server. !!! FIXME
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if (scalar @pushlist > 0) {
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system "rsync -av -e ssh @pushlist eelco\@losser.st-lab.cs.uu.nl:/home/eelco/public_html/nix-dist/";
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}
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