This file is indexed.

/usr/lib/debbugs/expire is in debbugs 2.4.1ubuntu1.

This file is owned by root:root, with mode 0o755.

The actual contents of the file can be viewed below.

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#!/usr/bin/perl
# $Id: expire.in,v 1.16 2003/05/25 13:17:14 cjwatson Exp $

# Load modules and set envirnment
use File::Copy;
$config_path = '/etc/debbugs';
$lib_path = '/usr/lib/debbugs';

require("$config_path/config");
require("$config_path/text");
require("$lib_path/errorlib");
$ENV{'PATH'} = $lib_path.':'.$ENV{'PATH'};

chdir("$gSpoolDir") || die "chdir spool: $!\n";

#global variables
$debug = 0;
defined($startdate= time) || &quit("failed to get time: $!");

#get list of bugs (ie, status files)
opendir(DIR,"db-h") || &quit("opendir db: $!\n");
@dirs = sort { $a <=> $b } grep(s,^,db-h/,, grep(m/^\d+$/,readdir(DIR)));
close(DIR);
foreach my $dir (@dirs) {
	opendir(DIR,$dir);
	push @list, sort { $a <=> $b } grep(s/\.status$//,grep(m/^\d+\.status$/,readdir(DIR)));
	close(DIR);
}

#process each bug (ie, status file)
while (length($ref=shift(@list))) {
	print STDERR "$ref considering\n" if $debug;
    ($bfound, $data)= &lockreadbugmerge($ref);
	print STDERR "$ref read $bfound\n" if $debug;
    $bfound || next;
	print "$ref read ok (done $data->{done})\n" if $debug;
    (&unlockreadbugmerge($bfound), next) unless length($data->{done});
	print "$ref read done\n" if $debug;
    @aref= ($ref);
    if (length($data->{mergedwith})) { push(@aref,split / /,$data->{mergedwith}); }
	print "$ref aref @aref\n" if $debug;
    $oktoremove= 1;
    for $mref (@aref) {
	print "$ref $mref check\n" if $debug;
        if ($mref != $ref) {
	 	print "$ref $mref reading\n" if $debug;
            $newdata = &lockreadbug($mref) || die "huh $mref ?";
		print "$ref $mref read ok\n" if $debug;
            $bfound++;
        } else {
            $newdata = $data;
        }
	print "$ref $mref read/not\n" if $debug;
        $expectmerge= join(' ',grep($_ != $mref, sort { $a <=> $b } @aref));
        $newdata->{mergedwith} eq $expectmerge ||
            die "$ref -> $mref: ($newdata->{mergedwith}) vs. ($expectmerge) (@aref)";
		print "$ref $mref merge-ok\n" if $debug;
        length($newdata->{done}) || die "$ref -> $mref";
		print "$ref $mref done-ok\n" if $debug;
        $days= -M "db-h/".get_hashname($mref)."/$mref.log";
		print "ref $mref days $days\n" if $debug;
        if ($days <= $gRemoveAge) 
		{ print "$ref $mref saved\n" if $debug; $oktoremove= 0; }
    }
    if ($oktoremove) {
	print "$ref removing\n" if $debug;
        for $mref (@aref) {
	 	print "$ref removing $mref\n" if $debug;
		my $dir = get_hashname($mref);
		if ( $gSaveOldBugs ) {
			`mkdir -p "archive/$dir"`;
			link( "db-h/$dir/$mref.log", "archive/$dir/$mref.log" ) || copy( "db-h/$dir/$mref.log", "archive/$dir/$mref.log" );
			link( "db-h/$dir/$mref.status", "archive/$dir/$mref.status" ) || copy( "db-h/$dir/$mref.status", "archive/$dir/$mref.status" );
			link( "db-h/$dir/$mref.report", "archive/$dir/$mref.report" ) || copy( "db-h/$dir/$mref.report", "archive/$dir/$mref.report" );
            		print("archived $mref to archive/$dir (from $ref)\n") || &quit("output old: $!");
		}
		unlink("db-h/$dir/$mref.log", "db-h/$dir/$mref.status", "db-h/$dir/$mref.report");
		print("deleted $mref (from $ref)\n") || &quit("output old: $!");
		bughook_archive($mref);
        }
    }
	print "$ref unlocking $bfound\n" if $debug;
    for ($i=0; $i<$bfound; $i++) { &unfilelock; }
	print "$ref unlocking done\n" if $debug;
}

close(STDOUT) || &quit("close stdout: $!");