X-Git-Url: https://sipb.mit.edu/gitweb.cgi/ikiwiki.git/blobdiff_plain/cb80809aec56e1b6f0194f3d6f778fc8db3c7783..9b62dac4bcf62f3a1f76ec5a7ed5a90db16ea1c8:/ikiwiki-mass-rebuild

diff --git a/ikiwiki-mass-rebuild b/ikiwiki-mass-rebuild
index 710db4eac..f13033e7f 100755
--- a/ikiwiki-mass-rebuild
+++ b/ikiwiki-mass-rebuild
@@ -15,6 +15,23 @@ sub supplemental_groups {
 	return @list;
 }
 
+sub samelists {
+	my %a=map { $_ => 1 } split(' ', shift());
+	my %b=map { $_ => 1 } split(' ', shift());
+
+	foreach my $i (keys %b) {
+		if (! exists $a{$i}) {
+			return 0;
+		}
+	}
+	foreach my $i (keys %a) {
+		if (! exists $b{$i}) {
+			return 0;
+		}
+	}
+	return 1;
+}
+
 sub processline {
 	my $user=shift;
 	my $setup=shift;
@@ -33,10 +50,9 @@ sub processline {
 	defined(my $pid = fork) or die "Can’t fork: $!";
 	if (! $pid) {
 		my ($uuid, $ugid) = (getpwnam($user))[2, 3];
-		my $grouplist=join(" ", $ugid, $ugid, supplemental_groups($user));
-		$)=$grouplist;
-		if ($!) {
-			die "failed to set egid $grouplist";
+		my $grouplist=join(" ", $ugid, sort {$a <=> $b} $ugid, supplemental_groups($user));
+		if (! samelists(($)=$grouplist), $grouplist)) {
+			die "failed to set egid $grouplist (got back $))";
 		}
 		$(=$ugid;
 		$<=$uuid;