X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=lib%2FPublicInbox%2FV2Writable.pm;h=2b849ddffb0d1221a1d20a2829823174f7cb0d4a;hb=e8d6c34c749d1b0fd1dc1278cd4a2a310b31a9ac;hp=531a72b28abd5d8bb101839662c352d27fa3d548;hpb=b3cf37096874c6c80ef554e5153e5d995c72ab95;p=public-inbox.git

diff --git a/lib/PublicInbox/V2Writable.pm b/lib/PublicInbox/V2Writable.pm
index 531a72b2..2b849ddf 100644
--- a/lib/PublicInbox/V2Writable.pm
+++ b/lib/PublicInbox/V2Writable.pm
@@ -1351,11 +1351,19 @@ sub index_sync {
 	$opt //= {};
 	return xapian_only($self, $opt) if $opt->{xapian_only};
 
-	my $pr = $opt->{-progress};
 	my $epoch_max;
-	my $latest = $self->{ibx}->git_dir_latest(\$epoch_max);
-	return unless defined $latest;
+	my $latest = $self->{ibx}->git_dir_latest(\$epoch_max) // return;
+	if ($opt->{'fast-noop'}) { # nanosecond (st_ctim) comparison
+		use Time::HiRes qw(stat);
+		if (my @mm = stat("$self->{ibx}->{inboxdir}/msgmap.sqlite3")) {
+			my $c = $mm[10]; # 10 = ctime (nsec NV)
+			my @hd = stat("$latest/refs/heads");
+			my @pr = stat("$latest/packed-refs");
+			return if $c > ($hd[10] // 0) && $c > ($pr[10] // 0);
+		}
+	}
 
+	my $pr = $opt->{-progress};
 	my $seq = $opt->{sequential_shard};
 	my $art_beg; # the NNTP article number we start xapian_only at
 	my $idxlevel = $self->{ibx}->{indexlevel};