142 lines
3.1 KiB
Perl
142 lines
3.1 KiB
Perl
#! /usr/bin/perl -w
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use strict;
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use POSIX qw(tmpnam);
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my $tmpdir;
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do { $tmpdir = tmpnam(); }
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until mkdir $tmpdir, 0777;
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my $fixfile = "$tmpdir/create-nars.fix";
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my $manifest = "$tmpdir/MANIFEST";
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END { unlink $manifest; unlink $fixfile; rmdir $tmpdir; }
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open FIX, ">$fixfile";
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print FIX "[";
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my $first = 1;
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my @paths;
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foreach my $id (@ARGV) {
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die unless $id =~ /^\//;
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# Get all paths referenced by the normalisation of the given
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# Nix expression.
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system "nix --install $id > /dev/null";
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if ($?) { die "`nix --install' failed"; }
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open PATHS, "nix --query --requisites --include-successors $id 2> /dev/null |" or die "nix -qr";
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while (<PATHS>) {
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chomp;
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die "bad: $_" 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 $path (@paths) {
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die unless ($path =~ /\/[0-9a-z]{32}.*$/);
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print "$path\n";
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# Construct a Fix expression that creates a Nix archive.
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my $fixexpr =
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"Call(IncludeFix(\"nar/nar.fix\"), " .
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"[ (\"path\", Closure([\"$path\"], [(\"$path\", [])]))" .
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"])";
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print FIX "," unless ($first);
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$first = 0;
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print FIX $fixexpr;
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}
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}
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print FIX "]";
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close FIX;
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# Instantiate a Nix expression from the Fix expression.
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my @nids;
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print STDERR "running fix...\n";
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open NIDS, "fix $fixfile |" or die "cannot run fix";
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while (<NIDS>) {
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chomp;
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die unless /^\//;
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push @nids, $_;
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}
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close NIDS;
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# Realise the Nix expression.
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print STDERR "creating archives...\n";
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system "nix --install -v @nids > /dev/null";
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if ($?) { die "`nix --install' failed"; }
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my @narpaths;
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open NIDS, "nix --query --list @nids |" or die "cannot run nix";
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while (<NIDS>) {
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chomp;
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die unless (/^\//);
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push @narpaths, "$_";
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}
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close NIDS;
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# Create the manifest.
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print STDERR "creating manifest...\n";
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open MANIFEST, ">$manifest";
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my @pushlist;
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push @pushlist, $manifest;
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for (my $n = 0; $n < scalar @paths; $n++) {
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my $storepath = $paths[$n];
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my $nardir = $narpaths[$n];
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$storepath =~ /\/([^\/]*)$/;
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my $basename = $1;
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defined $basename or die;
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my $narname = "$basename.nar.bz2";
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my $narfile = "$nardir/$narname";
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(-f $narfile) or die "narfile for $storepath not found";
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push @pushlist, $narfile;
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open MD5, "$nardir/md5" or die "cannot open hash";
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my $hash = <MD5>;
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chomp $hash;
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$hash =~ /^[0-9a-z]{32}$/ or die "invalid hash";
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close MD5;
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print MANIFEST "{\n";
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print MANIFEST " StorePath: $storepath\n";
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print MANIFEST " NarName: $narname\n";
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print MANIFEST " MD5: $hash\n";
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if ($storepath =~ /\.nix$/) {
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open PREDS, "nix --query --predecessors $storepath |" or die "cannot run nix";
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while (<PREDS>) {
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chomp;
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die unless (/^\//);
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print MANIFEST " SuccOf: $_\n";
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}
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close PREDS;
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}
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print MANIFEST "}\n";
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}
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close MANIFEST;
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# Push the prebuilts to the server. !!! FIXME
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print STDERR "pushing to server...\n";
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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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