v2writable: make OO calls to last_commit-related methods

We'll try to reuse as much V2Writable code as possible for
external indices, but the way "last_commit" info is stored
must be different as external indices will deal with last_commit
info for multiple inboxes.

diff --git a/lib/PublicInbox/V2Writable.pm b/lib/PublicInbox/V2Writable.pm
index 9d08549f675c65e9fae6ffda6ae35483b0f376c2..de89b7292c147625cfe79bb6a5a12d9dd50682da 100644 (file)
--- a/lib/PublicInbox/V2Writable.pm
+++ b/lib/PublicInbox/V2Writable.pm
@@ -953,7 +953,7 @@ sub index_oid { # cat_async callback
 }
 
 # only update last_commit for $i on reindex iff newer than current
-sub update_last_commit ($$$$) {
+sub update_last_commit {
        my ($self, $git, $i, $cmt) = @_;
        my $last = last_epoch_commit($self, $i);
        if (defined $last && is_ancestor($git, $last, $cmt)) {
@@ -1034,7 +1034,7 @@ sub sync_prepare ($$$) {
 
        # reindex stops at the current heads and we later rerun index_sync
        # without {reindex}
-       my $reindex_heads = last_commits($self, $epoch_max) if $sync->{reindex};
+       my $reindex_heads = $self->last_commits($epoch_max) if $sync->{reindex};
 
        for (my $i = $epoch_max; $i >= 0; $i--) {
                my $git_dir = git_dir_n($self, $i);
@@ -1229,7 +1229,7 @@ sub index_epoch ($$$) {
                }
        }
        $all->async_wait_all;
-       update_last_commit($self, $git, $i, $stk->{latest_cmt});
+       $self->update_last_commit($git, $i, $stk->{latest_cmt});
 }
 
 sub xapian_only {