[PATCH 2/3] treewide: warn on SQLite `PRAGMA optimize' failure

[Eric Wong <e@80x24.org>]

While `PRAGMA optimize' isn't a strict requirement for proper
functionality anywhere, displaying the failure can help detect
bigger problems in the future in case of failing hardware.
---
 lib/PublicInbox/LeiMailSync.pm | 5 +++--
 lib/PublicInbox/Msgmap.pm      | 9 +++++++++
 lib/PublicInbox/OverIdx.pm     | 1 +
 lib/PublicInbox/SearchIdx.pm   | 4 +---
 lib/PublicInbox/V2Writable.pm  | 7 ++-----
 5 files changed, 16 insertions(+), 10 deletions(-)

diff --git a/lib/PublicInbox/LeiMailSync.pm b/lib/PublicInbox/LeiMailSync.pm
index c498421c..d0f6d7b4 100644
--- a/lib/PublicInbox/LeiMailSync.pm
+++ b/lib/PublicInbox/LeiMailSync.pm
@@ -49,8 +49,9 @@ sub lms_write_prepare { ($_[0]->{dbh} //= dbh_new($_[0])); $_[0] }
 sub lms_pause {
 	my ($self) = @_;
 	$self->{fmap} = {};
-	my $dbh = delete $self->{dbh};
-	eval { $dbh->do('PRAGMA optimize') } if $dbh;
+	my $dbh = delete $self->{dbh} // return;
+	eval { $dbh->do('PRAGMA optimize') };
+	warn 'W: optimize ', $dbh->sqlite_db_filename, ': ', $@ if $@;
 }
 
 sub create_tables {
diff --git a/lib/PublicInbox/Msgmap.pm b/lib/PublicInbox/Msgmap.pm
index c4bc766d..3101fd7d 100644
--- a/lib/PublicInbox/Msgmap.pm
+++ b/lib/PublicInbox/Msgmap.pm
@@ -275,4 +275,13 @@ sub check_inodes {
 	$self->{dbh} //= PublicInbox::Over::dbh_new($self, !$rw);
 }
 
+sub mm_commit {
+	my ($self) = @_;
+	my $dbh = $self->{dbh} // return;
+	$dbh->commit;
+	eval { $dbh->do('PRAGMA optimize') };
+	warn 'W: optimize ', $dbh->sqlite_db_filename, ': ', $@ if $@;
+	$dbh;
+}
+
 1;
diff --git a/lib/PublicInbox/OverIdx.pm b/lib/PublicInbox/OverIdx.pm
index 4f8533f7..879ae045 100644
--- a/lib/PublicInbox/OverIdx.pm
+++ b/lib/PublicInbox/OverIdx.pm
@@ -439,6 +439,7 @@ sub commit_lazy {
 	delete $self->{txn} or return;
 	$self->{dbh}->commit;
 	eval { $self->{dbh}->do('PRAGMA optimize') };
+	warn 'W: optimize ', $self->{dbh}->sqlite_db_filename, ': ', $@ if $@;
 }
 
 sub begin_lazy {
diff --git a/lib/PublicInbox/SearchIdx.pm b/lib/PublicInbox/SearchIdx.pm
index 7829c7d4..48ba806a 100644
--- a/lib/PublicInbox/SearchIdx.pm
+++ b/lib/PublicInbox/SearchIdx.pm
@@ -860,9 +860,7 @@ sub v1_checkpoint ($$;$) {
 		}
 	}
 	${$sync->{max}} = $self->{batch_bytes};
-
-	$self->{mm}->{dbh}->commit;
-	eval { $self->{mm}->{dbh}->do('PRAGMA optimize') };
+	$self->{mm}->mm_commit;
 	my $xdb = $self->{xdb};
 	if ($newest && $xdb) {
 		my $cur = $xdb->get_metadata('last_commit');
diff --git a/lib/PublicInbox/V2Writable.pm b/lib/PublicInbox/V2Writable.pm
index f7057359..721fbb4a 100644
--- a/lib/PublicInbox/V2Writable.pm
+++ b/lib/PublicInbox/V2Writable.pm
@@ -522,11 +522,8 @@ sub checkpoint ($;$) {
 	$self->{im}->barrier if $self->{im};
 	my $shards = $self->{idx_shards};
 	if ($shards) {
-		my $dbh = $self->{mm}->{dbh} if $self->{mm};
-
-		# SQLite msgmap data is second in importance
-		$dbh->commit if $dbh;
-		eval { $dbh->do('PRAGMA optimize') };
+		# SQLite msgmap is second in importance (not in eidx)
+		my $dbh = $self->{mm} ? $self->{mm}->mm_commit : undef;
 
 		# SQLite overview is third
 		$self->{oidx}->commit_lazy;