-# Copyright (C) 2015-2020 all contributors <meta@public-inbox.org>
+# Copyright (C) 2015-2021 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
# based on notmuch, but with no concept of folders, files or flags
#
our %X = map { $_ => 0 } qw(BoolWeight Database Enquire QueryParser Stem Query);
our $Xap; # 'Search::Xapian' or 'Xapian'
our $NVRP; # '$Xap::'.('NumberValueRangeProcessor' or 'NumberRangeProcessor')
-our $ENQ_ASCENDING;
+
+# ENQ_DESCENDING and ENQ_ASCENDING weren't in SWIG Xapian.pm prior to 1.4.16,
+# let's hope the ABI is stable
+our $ENQ_DESCENDING = 0;
+our $ENQ_ASCENDING = 1;
sub load_xapian () {
return 1 if defined $Xap;
'NumberRangeProcessor' : 'NumberValueRangeProcessor');
$X{$_} = $Xap.'::'.$_ for (keys %X);
- # ENQ_ASCENDING doesn't seem exported by SWIG Xapian.pm,
- # so lets hope this part of the ABI is stable because it's
- # just an integer:
- $ENQ_ASCENDING = $x eq 'Xapian' ?
- 1 : Search::Xapian::ENQ_ASCENDING();
-
*sortable_serialise = $x.'::sortable_serialise';
*sortable_unserialise = $x.'::sortable_unserialise';
# n.b. FLAG_PURE_NOT is expensive not suitable for a public
}
}
-sub xdb_sharded {
+# returns all shards as separate Xapian::Database objects w/o combining
+sub xdb_shards_flat ($) {
my ($self) = @_;
- opendir(my $dh, $self->{xpfx}) or return; # not initialized yet
-
- # We need numeric sorting so shard[0] is first for reading
- # Xapian metadata, if needed
- my $last = max(grep(/\A[0-9]+\z/, readdir($dh))) // return;
+ my $xpfx = $self->{xpfx};
my (@xdb, $slow_phrase);
- for (0..$last) {
- my $shard_dir = "$self->{xpfx}/$_";
- if (-d $shard_dir && -r _) {
+ load_xapian();
+ if ($xpfx =~ m/xapian${\SCHEMA_VERSION}\z/) {
+ @xdb = ($X{Database}->new($xpfx));
+ $self->{qp_flags} |= FLAG_PHRASE() if !-f "$xpfx/iamchert";
+ } else {
+ opendir(my $dh, $xpfx) or return (); # not initialized yet
+ # We need numeric sorting so shard[0] is first for reading
+ # Xapian metadata, if needed
+ my $last = max(grep(/\A[0-9]+\z/, readdir($dh))) // return ();
+ for (0..$last) {
+ my $shard_dir = "$self->{xpfx}/$_";
push @xdb, $X{Database}->new($shard_dir);
$slow_phrase ||= -f "$shard_dir/iamchert";
- } else { # gaps from missing epochs throw off mdocid()
- warn "E: $shard_dir missing or unreadable\n";
- return;
}
+ $self->{qp_flags} |= FLAG_PHRASE() if !$slow_phrase;
}
- $self->{qp_flags} |= FLAG_PHRASE() if !$slow_phrase;
- $self->{nshard} = scalar(@xdb);
- my $xdb = shift @xdb;
- $xdb->add_database($_) for @xdb;
- $xdb;
-}
-
-sub _xdb {
- my ($self) = @_;
- my $dir = xdir($self, 1);
- $self->{qp_flags} //= $QP_FLAGS;
- if ($self->{ibx_ver} >= 2) {
- xdb_sharded($self);
- } else {
- $self->{qp_flags} |= FLAG_PHRASE() if !-f "$dir/iamchert";
- $X{Database}->new($dir);
- }
+ @xdb;
}
# v2 Xapian docids don't conflict, so they're identical to
sub mset_to_artnums {
my ($self, $mset) = @_;
- my $nshard = $self->{nshard} // 1;
+ my $nshard = $self->{nshard};
[ map { mdocid($nshard, $_) } $mset->items ];
}
sub xdb ($) {
my ($self) = @_;
$self->{xdb} //= do {
- load_xapian();
- $self->_xdb;
+ $self->{qp_flags} //= $QP_FLAGS;
+ my @xdb = $self->xdb_shards_flat or return;
+ $self->{nshard} = scalar(@xdb);
+ my $xdb = shift @xdb;
+ $xdb->add_database($_) for @xdb;
+ $xdb;
};
}
-sub xpfx_init ($) {
- my ($self) = @_;
- if ($self->{ibx_ver} == 1) {
- $self->{xpfx} .= '/public-inbox/xapian' . SCHEMA_VERSION;
- } else {
- $self->{xpfx} .= '/xap'.SCHEMA_VERSION;
- }
-}
-
sub new {
my ($class, $ibx) = @_;
ref $ibx or die "BUG: expected PublicInbox::Inbox object: $ibx";
- my $self = bless {
- xpfx => $ibx->{inboxdir}, # for xpfx_init
+ my $xap = $ibx->version > 1 ? 'xap' : 'public-inbox/xapian';
+ bless {
+ xpfx => "$ibx->{inboxdir}/$xap" . SCHEMA_VERSION,
altid => $ibx->{altid},
- ibx_ver => $ibx->version,
}, $class;
- xpfx_init($self);
- $self;
}
sub reopen {
$enquire->set_query($query);
$opts ||= {};
my $desc = !$opts->{asc};
- if (($opts->{mset} || 0) == 2) { # mset == 2: ORDER BY docid/UID
+ my $rel = $opts->{relevance} // 0;
+ if ($rel == -1) { # ORDER BY docid/UID
+ $enquire->set_weighting_scheme($X{BoolWeight}->new);
$enquire->set_docid_order($ENQ_ASCENDING);
+ } elsif ($rel == 0) {
+ $enquire->set_sort_by_value_then_relevance(TS, $desc);
+ } elsif ($rel == -2) {
$enquire->set_weighting_scheme($X{BoolWeight}->new);
- } elsif ($opts->{relevance}) {
+ $enquire->set_docid_order($ENQ_DESCENDING);
+ } else { # rel > 0
$enquire->set_sort_by_relevance_then_value(TS, $desc);
- } else {
- $enquire->set_sort_by_value_then_relevance(TS, $desc);
}
# `mairix -t / --threads' or JMAP collapseThreads
sub mset_to_smsg {
my ($self, $ibx, $mset) = @_;
- my $nshard = $self->{nshard} // 1;
+ my $nshard = $self->{nshard};
my $i = 0;
my %order = map { mdocid($nshard, $_) => ++$i } $mset->items;
my @msgs = sort {