23 lines
357 B
Perl
Executable File
23 lines
357 B
Perl
Executable File
#! /usr/bin/perl -w
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my $prefix = $ENV{"NIX"} || "/nix"; # !!! use prefix
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my $linkdir = "$prefix/var/nix/links";
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my %alive;
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open HASHES, "nix closure \$(cat $linkdir/*.hash) |";
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while (<HASHES>) {
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chomp;
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$alive{$_} = 1;
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}
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close HASHES;
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open HASHES, "nix listinst |";
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while (<HASHES>) {
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chomp;
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if (!$alive{$_}) {
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print "$_\n";
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}
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}
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close HASHES;
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