v2writable: purge ignores non-existent git epoch directories

We don't require every git epoch to exist since we support
the --skip feature in public-inbox-init.

1 files changed, 3 insertions, 1 deletions

diff --git a/lib/PublicInbox/V2Writable.pm b/lib/PublicInbox/V2Writable.pm
index 08d18fc0..970244eb 100644
--- a/lib/PublicInbox/V2Writable.pm
+++ b/lib/PublicInbox/V2Writable.pm
@@ -286,7 +286,9 @@ sub purge_oids {
         my $pfx = "$self->{-inbox}->{mainrepo}/git";
         my $purges = [];
         foreach my $i (0..$self->{epoch_max}) {
-                my $git = PublicInbox::Git->new("$pfx/$i.git");
+                my $git_dir = "$pfx/$i.git";
+                -d $git_dir or next;
+                my $git = PublicInbox::Git->new($git_dir);
                 my $im = $self->import_init($git, 0, 1);
                 $purges->[$i] = $im->purge_oids($purge);
         }