xcpdb|compact: support some xapian-compact switches

Allow users to specify the --blocksize <B>, --no-full, --fuller
options for xapian-compact(1) for fine-tuning compact behavior
for low-traffic/inactive inboxes.

We also won't support --multipass, since it doesn't seem
compatible with our requirement to use --no-renumber.

We also won't support --single-file, since it only seems
intended for totally dead inboxes; and it doesn't seem
worth the support overhead when "totally dead" turns out
to be a misdiagnosis.

1 files changed, 12 insertions, 5 deletions

diff --git a/lib/PublicInbox/Xapcmd.pm b/lib/PublicInbox/Xapcmd.pm
index 488c6165..74abf999 100644
--- a/lib/PublicInbox/Xapcmd.pm
+++ b/lib/PublicInbox/Xapcmd.pm
@@ -13,6 +13,7 @@ use File::Basename qw(dirname);
 # support testing with dev versions of Xapian which installs
 # commands with a version number suffix (e.g. "xapian-compact-1.5")
 our $XAPIAN_COMPACT = $ENV{XAPIAN_COMPACT} || 'xapian-compact';
+our @COMPACT_OPT = qw(quiet|q blocksize|b=s no-full|n fuller|F);
 
 sub commit_changes ($$$) {
         my ($ibx, $tmp, $opt) = @_;
@@ -213,13 +214,19 @@ sub compact ($$) {
                 defined(my $dfd = $opt->{$fd}) or next;
                 $rdr->{$fd} = $dfd;
         }
-        if ($pr) {
-                $pr->("$pfx compacting...\n");
-                $rdr->{1} = fileno($w) if pipe($r, $w);
-        }
+        $rdr->{1} = fileno($w) if $pr && pipe($r, $w);
 
         # we rely on --no-renumber to keep docids synched to NNTP
-        my $cmd = [ $XAPIAN_COMPACT, '--no-renumber', $src, $dst ];
+        my $cmd = [ $XAPIAN_COMPACT, '--no-renumber' ];
+        for my $sw (qw(no-full fuller)) {
+                push @$cmd, "--$sw" if $opt->{$sw};
+        }
+        for my $sw (qw(blocksize)) {
+                defined(my $v = $opt->{$sw}) or next;
+                push @$cmd, "--$sw", $v;
+        }
+        $pr->("$pfx `".join(' ', @$cmd)."'\n") if $pr;
+        push @$cmd, $src, $dst;
         my $pid = spawn($cmd, undef, $rdr);
         if ($pr) {
                 close $w or die "close: \$w: $!";