45 lines
1.1 KiB
Perl
Executable File
45 lines
1.1 KiB
Perl
Executable File
#! /usr/bin/perl -w
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my $prefix = $ENV{"NIX"} || "/nix"; # !!! use prefix
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my $etcdir = "$prefix/etc/nix";
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my $exportdir = "$prefix/var/nix/prebuilts/exports";
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my $knowns = "$prefix/var/nix/known-prebuilts";
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umask 0022;
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# For performance, put the known hashes in an associative array.
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my %knowns = ();
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open KNOWNS, "<$knowns";
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while (<KNOWNS>) {
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next unless /([0-9a-z]{32})/;
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$knowns{$1} = 1;
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}
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close KNOWNS;
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# For each installed package, check whether a prebuilt is known.
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open PKGS, "nix listinst|";
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while (<PKGS>) {
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chomp;
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next unless /([0-9a-z]{32})/;
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my $pkghash = $1;
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if (!defined $knowns{$1}) {
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# No known prebuilt exists for this package; so export it.
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print "exporting $pkghash...\n";
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system "nix export '$exportdir' $pkghash";
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if ($?) { die "`nix export' failed"; }
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}
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}
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close PKGS;
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# Push the prebuilts to the server. !!! FIXME
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system "rsync -av -e ssh '$exportdir'/ eelco\@losser.st-lab.cs.uu.nl:/home/eelco/public_html/nix-prebuilts/";
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# Rerun `nix-pull-prebuilts' to rescan the prebuilt source locations.
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print "running nix-pull-prebuilts...";
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system "nix-pull-prebuilts";
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