[PATCH 23/26] xcpdb|compact: support some xapian-compact switches

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

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.
---
 lib/PublicInbox/Xapcmd.pm   | 17 ++++++++++++-----
 script/public-inbox-compact |  3 ++-
 script/public-inbox-xcpdb   |  3 ++-
 3 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/lib/PublicInbox/Xapcmd.pm b/lib/PublicInbox/Xapcmd.pm
index 488c616..74abf99 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: $!";
diff --git a/script/public-inbox-compact b/script/public-inbox-compact
index 4f58d5a..4bdadfc 100755
--- a/script/public-inbox-compact
+++ b/script/public-inbox-compact
@@ -10,7 +10,8 @@ use PublicInbox::Admin;
 PublicInbox::Admin::require_or_die('-index');
 my $usage = "Usage: public-inbox-compact REPO_DIR\n";
 my $opt = { compact => 1, -coarse_lock => 1 };
-GetOptions($opt, qw(quiet|q)) or die "bad command-line args\n$usage";
+GetOptions($opt, @PublicInbox::Xapcmd::COMPACT_OPT) or
+	die "bad command-line args\n$usage";
 my @ibxs = PublicInbox::Admin::resolve_inboxes(\@ARGV) or die $usage;
 foreach (@ibxs) {
 	my $ibx = PublicInbox::InboxWritable->new($_);
diff --git a/script/public-inbox-xcpdb b/script/public-inbox-xcpdb
index bda7be0..badb95e 100755
--- a/script/public-inbox-xcpdb
+++ b/script/public-inbox-xcpdb
@@ -9,7 +9,8 @@ use PublicInbox::Admin;
 PublicInbox::Admin::require_or_die('-search');
 my $usage = "Usage: public-inbox-xcpdb INBOX_DIR\n";
 my $opt = {};
-GetOptions($opt, qw(compact quiet|q)) or die "bad command-line args\n$usage";
+GetOptions($opt, qw(compact), @PublicInbox::Xapcmd::COMPACT_OPT) or
+	die "bad command-line args\n$usage";
 my @ibxs = PublicInbox::Admin::resolve_inboxes(\@ARGV) or die $usage;
 foreach (@ibxs) {
 	my $ibx = PublicInbox::InboxWritable->new($_);
-- 
EW