53 lines
1.2 KiB
Text
Executable file
53 lines
1.2 KiB
Text
Executable file
#! @perl@ -w
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use strict;
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my $profilesDir = "@localstatedir@/nix/profiles";
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my $binDir = $ENV{"NIX_BIN_DIR"} || "@bindir@";
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# Process the command line arguments.
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my @args = ();
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my $removeOld = 0;
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for my $arg (@ARGV) {
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if ($arg eq "--delete-old" || $arg eq "-d") {
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$removeOld = 1;
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} else {
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push @args, $arg;
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}
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}
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# If `-d' was specified, remove all old generations of all profiles.
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# Of course, this makes rollbacks to before this point in time
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# impossible.
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sub removeOldGenerations;
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sub removeOldGenerations {
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my $dir = shift;
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my $dh;
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opendir $dh, $dir or die;
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foreach my $name (sort (readdir $dh)) {
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next if $name eq "." || $name eq "..";
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$name = $dir . "/" . $name;
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if (-l $name && (readlink($name) =~ /link/)) {
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print STDERR "removing old generations of profile $name\n";
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system("$binDir/nix-env", "-p", $name, "--delete-generations", "old");
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}
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elsif (! -l $name && -d $name) {
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removeOldGenerations $name;
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}
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}
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closedir $dh or die;
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}
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removeOldGenerations $profilesDir if $removeOld;
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# Run the actual garbage collector.
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exec "$binDir/nix-store", "--gc", @args;
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