1 files changed, 4 insertions, 1 deletions
diff --git a/lib/PublicInbox/WwwListing.pm b/lib/PublicInbox/WwwListing.pm
index bcb968af..e19ae8a1 100644
--- a/lib/PublicInbox/WwwListing.pm
+++ b/lib/PublicInbox/WwwListing.pm
@@ -127,7 +127,9 @@ sub _json () {
  
  sub fingerprint ($) {
          my ($git) = @_;
-        my $fh = $git->popen('show-ref') or
+        # TODO: convert to qspawn for fairness when there's
+        # thousands of repos
+        my ($fh, $pid) = $git->popen('show-ref') or
                  die "popen($git->{git_dir} show-ref) failed: $!";
  
          my $dig = Digest::SHA->new(1);
@@ -135,6 +137,7 @@ sub fingerprint ($) {
                  $dig->add($buf);
          }
          close $fh;
+        waitpid($pid, 0);
          return if $?; # empty, uninitialized git repo
          $dig->hexdigest;
  }