1 # Copyright (C) 2015-2019 all contributors <meta@public-inbox.org>
2 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
3 # based on notmuch, but with no concept of folders, files or flags
5 # Indexes mail with Xapian and our (SQLite-based) ::Msgmap for use
6 # with the web and NNTP interfaces. This index maintains thread
7 # relationships for use by PublicInbox::SearchThread.
8 # This writes to the search index.
9 package PublicInbox::SearchIdx;
12 use base qw(PublicInbox::Search PublicInbox::Lock);
13 use PublicInbox::MIME;
14 use PublicInbox::InboxWritable;
15 use PublicInbox::MID qw/mid_clean id_compress mid_mime mids_for_index/;
16 use PublicInbox::MsgIter;
18 use POSIX qw(strftime);
19 use PublicInbox::OverIdx;
20 use PublicInbox::Spawn qw(spawn);
21 use PublicInbox::Git qw(git_unquote);
22 my $X = \%PublicInbox::Search::X;
23 my ($DB_CREATE_OR_OPEN, $DB_OPEN);
25 BATCH_BYTES => defined($ENV{XAPIAN_FLUSH_THRESHOLD}) ?
26 0x7fffffff : 1_000_000,
27 DEBUG => !!$ENV{DEBUG},
30 my $xapianlevels = qr/\A(?:full|medium)\z/;
33 my ($class, $ibx, $creat, $shard) = @_;
34 ref $ibx or die "BUG: expected PublicInbox::Inbox object: $ibx";
35 my $levels = qr/\A(?:full|medium|basic)\z/;
36 my $inboxdir = $ibx->{inboxdir};
37 my $version = $ibx->{version} || 1;
38 my $indexlevel = 'full';
39 my $altid = $ibx->{altid};
41 require PublicInbox::AltId;
42 $altid = [ map { PublicInbox::AltId->new($ibx, $_); } @$altid ];
44 if ($ibx->{indexlevel}) {
45 if ($ibx->{indexlevel} =~ $levels) {
46 $indexlevel = $ibx->{indexlevel};
48 die("Invalid indexlevel $ibx->{indexlevel}\n");
51 $ibx = PublicInbox::InboxWritable->new($ibx);
53 inboxdir => $inboxdir,
58 indexlevel => $indexlevel,
62 $self->{lock_path} = "$inboxdir/ssoma.lock";
63 my $dir = $self->xdir;
64 $self->{over} = PublicInbox::OverIdx->new("$dir/over.sqlite3");
65 } elsif ($version == 2) {
66 defined $shard or die "shard is required for v2\n";
68 $self->{shard} = $shard;
69 $self->{lock_path} = undef;
71 die "unsupported inbox version=$version\n";
73 $self->{creat} = ($creat || 0) == 1;
77 sub need_xapian ($) { $_[0]->{indexlevel} =~ $xapianlevels }
81 if (need_xapian($self)) {
82 my $xdb = delete $self->{xdb} or croak 'not acquired';
85 $self->lock_release if $self->{creat};
89 sub load_xapian_writable () {
90 return 1 if $X->{WritableDatabase};
91 PublicInbox::Search::load_xapian() or return;
92 my $xap = $PublicInbox::Search::Xap;
93 for (qw(Document TermGenerator WritableDatabase)) {
94 $X->{$_} = $xap.'::'.$_;
96 eval 'require '.$X->{WritableDatabase} or die;
97 *sortable_serialise = $xap.'::sortable_serialise';
98 $DB_CREATE_OR_OPEN = eval($xap.'::DB_CREATE_OR_OPEN()');
99 $DB_OPEN = eval($xap.'::DB_OPEN()');
106 my $dir = $self->xdir;
107 if (need_xapian($self)) {
108 croak 'already acquired' if $self->{xdb};
109 load_xapian_writable();
110 $flag = $self->{creat} ? $DB_CREATE_OR_OPEN : $DB_OPEN;
112 if ($self->{creat}) {
116 # don't create empty Xapian directories if we don't need Xapian
117 my $is_shard = defined($self->{shard});
118 if (!$is_shard || ($is_shard && need_xapian($self))) {
119 File::Path::mkpath($dir);
122 return unless defined $flag;
123 my $xdb = eval { ($X->{WritableDatabase})->new($dir, $flag) };
125 die "Failed opening $dir: ", $@;
131 my ($doc, $col, $num) = @_;
132 $num = sortable_serialise($num);
133 $doc->add_value($col, $num);
136 sub index_text ($$$$)
138 my ($self, $field, $n, $text) = @_;
139 my $tg = $self->term_generator;
141 if ($self->{indexlevel} eq 'full') {
142 $tg->index_text($field, $n, $text);
143 $tg->increase_termpos;
145 $tg->index_text_without_positions($field, $n, $text);
149 sub index_users ($$) {
150 my ($self, $smsg) = @_;
152 my $from = $smsg->from;
156 $self->index_text($from, 1, 'A'); # A - author
157 $self->index_text($to, 1, 'XTO') if $to ne '';
158 $self->index_text($cc, 1, 'XCC') if $cc ne '';
161 sub index_diff_inc ($$$$) {
162 my ($self, $text, $pfx, $xnq) = @_;
164 $self->index_text(join("\n", @$xnq), 1, 'XNQ');
167 $self->index_text($text, 1, $pfx);
170 sub index_old_diff_fn {
171 my ($self, $seen, $fa, $fb, $xnq) = @_;
173 # no renames or space support for traditional diffs,
174 # find the number of leading common paths to strip:
175 my @fa = split('/', $fa);
176 my @fb = split('/', $fb);
177 while (scalar(@fa) && scalar(@fb)) {
178 $fa = join('/', @fa);
179 $fb = join('/', @fb);
181 unless ($seen->{$fa}++) {
182 $self->index_diff_inc($fa, 'XDFN', $xnq);
192 sub index_diff ($$$) {
193 my ($self, $lines, $doc) = @_;
199 if ($in_diff && s/^ //) { # diff context
200 $self->index_diff_inc($_, 'XDFCTX', $xnq);
201 } elsif (/^-- $/) { # email signature begins
203 } elsif (m!^diff --git ("?a/.+) ("?b/.+)\z!) {
204 my ($fa, $fb) = ($1, $2);
205 my $fn = (split('/', git_unquote($fa), 2))[1];
206 $seen{$fn}++ or $self->index_diff_inc($fn, 'XDFN', $xnq);
207 $fn = (split('/', git_unquote($fb), 2))[1];
208 $seen{$fn}++ or $self->index_diff_inc($fn, 'XDFN', $xnq);
211 } elsif (m/^diff -(.+) (\S+) (\S+)$/) {
212 my ($opt, $fa, $fb) = ($1, $2, $3);
214 # only support unified:
215 next unless $opt =~ /[uU]/;
216 $in_diff = $self->index_old_diff_fn(\%seen, $fa, $fb,
218 } elsif (m!^--- ("?a/.+)!) {
220 $fn = (split('/', git_unquote($fn), 2))[1];
221 $seen{$fn}++ or $self->index_diff_inc($fn, 'XDFN', $xnq);
223 } elsif (m!^\+\+\+ ("?b/.+)!) {
225 $fn = (split('/', git_unquote($fn), 2))[1];
226 $seen{$fn}++ or $self->index_diff_inc($fn, 'XDFN', $xnq);
228 } elsif (/^--- (\S+)/) {
231 } elsif (defined $in_diff && /^\+\+\+ (\S+)/) {
232 $in_diff = $self->index_old_diff_fn(\%seen, $in_diff, $1,
234 } elsif ($in_diff && s/^\+//) { # diff added
235 $self->index_diff_inc($_, 'XDFB', $xnq);
236 } elsif ($in_diff && s/^-//) { # diff removed
237 $self->index_diff_inc($_, 'XDFA', $xnq);
238 } elsif (m!^index ([a-f0-9]+)\.\.([a-f0-9]+)!) {
239 my ($ba, $bb) = ($1, $2);
240 index_git_blob_id($doc, 'XDFPRE', $ba);
241 index_git_blob_id($doc, 'XDFPOST', $bb);
243 } elsif (/^@@ (?:\S+) (?:\S+) @@\s*$/) {
244 # traditional diff w/o -p
245 } elsif (/^@@ (?:\S+) (?:\S+) @@\s*(\S+.*)$/) {
246 # hunk header context
247 $self->index_diff_inc($1, 'XDFHH', $xnq);
248 # ignore the following lines:
249 } elsif (/^(?:dis)similarity index/ ||
250 /^(?:old|new) mode/ ||
251 /^(?:deleted|new) file mode/ ||
252 /^(?:copy|rename) (?:from|to) / ||
253 /^(?:dis)?similarity index / ||
254 /^\\ No newline at end of file/ ||
255 /^Binary files .* differ/) {
261 warn "non-diff line: $_\n" if DEBUG && $_ ne '';
266 $self->index_text(join("\n", @xnq), 1, 'XNQ');
269 sub index_body ($$$) {
270 my ($self, $lines, $doc) = @_;
271 my $txt = join("\n", @$lines);
273 # does it look like a diff?
274 if ($txt =~ /^(?:diff|---|\+\+\+) /ms) {
276 $self->index_diff($lines, $doc);
278 $self->index_text($txt, 1, 'XNQ');
281 $self->index_text($txt, 0, 'XQUOT');
286 sub add_xapian ($$$$$) {
287 my ($self, $mime, $num, $oid, $mids, $mid0) = @_;
288 my $smsg = PublicInbox::SearchMsg->new($mime);
289 my $doc = $X->{Document}->new;
290 my $subj = $smsg->subject;
291 add_val($doc, PublicInbox::Search::TS(), $smsg->ts);
292 my @ds = gmtime($smsg->ds);
293 my $yyyymmdd = strftime('%Y%m%d', @ds);
294 add_val($doc, PublicInbox::Search::YYYYMMDD(), $yyyymmdd);
295 my $dt = strftime('%Y%m%d%H%M%S', @ds);
296 add_val($doc, PublicInbox::Search::DT(), $dt);
298 my $tg = $self->term_generator;
300 $tg->set_document($doc);
301 $self->index_text($subj, 1, 'S') if $subj;
302 $self->index_users($smsg);
304 msg_iter($mime, sub {
305 my ($part, $depth, @idx) = @{$_[0]};
306 my $ct = $part->content_type || 'text/plain';
307 my $fn = $part->filename;
308 if (defined $fn && $fn ne '') {
309 $self->index_text($fn, 1, 'XFN');
312 my ($s, undef) = msg_part_text($part, $ct);
313 defined $s or return;
316 my @lines = split(/\n/, $s);
317 while (defined(my $l = shift @lines)) {
319 $self->index_body(\@orig, $doc) if @orig;
322 $self->index_body(\@quot, 0) if @quot;
326 $self->index_body(\@quot, 0) if @quot;
327 $self->index_body(\@orig, $doc) if @orig;
330 foreach my $mid (@$mids) {
331 $self->index_text($mid, 1, 'XM');
333 # because too many Message-IDs are prefixed with
335 if ($mid =~ /\w{12,}/) {
336 my @long = ($mid =~ /(\w{3,}+)/g);
337 $self->index_text(join(' ', @long), 1, 'XM');
340 $smsg->{to} = $smsg->{cc} = '';
341 PublicInbox::OverIdx::parse_references($smsg, $mid0, $mids);
342 my $data = $smsg->to_doc_data($oid, $mid0);
343 $doc->set_data($data);
344 if (my $altid = $self->{-altid}) {
345 foreach my $alt (@$altid) {
346 my $pfx = $alt->{xprefix};
347 foreach my $mid (@$mids) {
348 my $id = $alt->mid2alt($mid);
349 next unless defined $id;
350 $doc->add_boolean_term($pfx . $id);
354 $doc->add_boolean_term('Q' . $_) foreach @$mids;
355 $self->{xdb}->replace_document($num, $doc);
359 # mime = Email::MIME object
360 my ($self, $mime, $bytes, $num, $oid, $mid0) = @_;
361 my $mids = mids_for_index($mime->header_obj);
362 $mid0 = $mids->[0] unless defined $mid0; # v1 compatibility
363 unless (defined $num) { # v1
365 $num = index_mm($self, $mime);
368 if (need_xapian($self)) {
369 $self->add_xapian($mime, $num, $oid, $mids, $mid0)
371 if (my $over = $self->{over}) {
372 $over->add_overview($mime, $bytes, $num, $oid, $mid0);
377 warn "failed to index message <".join('> <',@$mids).">: $@\n";
383 # returns begin and end PostingIterator
385 my ($self, $termval) = @_;
386 my $db = $self->{xdb};
388 ($db->postlist_begin($termval), $db->postlist_end($termval));
393 my ($self, $termval, $cb) = @_;
394 my $batch_size = 1000; # don't let @ids grow too large to avoid OOM
396 my ($head, $tail) = $self->find_doc_ids($termval);
397 return if $head == $tail;
399 for (; $head != $tail && @ids < $batch_size; $head++) {
400 push @ids, $head->get_docid;
406 # v1 only, where $mid is unique
408 my ($self, $mid) = @_;
409 $mid = mid_clean($mid);
411 if (my $over = $self->{over}) {
412 my $nr = eval { $over->remove_oid(undef, $mid) };
414 warn "failed to remove <$mid> from overview: $@\n";
416 warn "<$mid> missing for removal from overview\n";
419 return unless need_xapian($self);
420 my $db = $self->{xdb};
423 batch_do($self, 'Q' . $mid, sub {
425 $db->delete_document($_) for @$ids;
430 warn "failed to remove <$mid> from Xapian: $@\n";
432 warn "<$mid> missing for removal from Xapian\n";
436 # MID is a hint in V2
438 my ($self, $oid, $mid) = @_;
440 $self->{over}->remove_oid($oid, $mid) if $self->{over};
442 return unless need_xapian($self);
443 my $db = $self->{xdb};
445 # XXX careful, we cannot use batch_do here since we conditionally
446 # delete documents based on other factors, so we cannot call
447 # find_doc_ids twice.
448 my ($head, $tail) = $self->find_doc_ids('Q' . $mid);
449 return if $head == $tail;
451 # there is only ONE element in @delete unless we
452 # have bugs in our v2writable deduplication check
454 for (; $head != $tail; $head++) {
455 my $docid = $head->get_docid;
456 my $doc = $db->get_document($docid);
457 my $smsg = PublicInbox::SearchMsg->wrap($mid);
458 $smsg->load_expand($doc);
459 if ($smsg->{blob} eq $oid) {
460 push(@delete, $docid);
463 $db->delete_document($_) foreach @delete;
467 sub term_generator { # write-only
470 my $tg = $self->{term_generator};
473 $tg = $X->{TermGenerator}->new;
474 $tg->set_stemmer($self->stemmer);
476 $self->{term_generator} = $tg;
479 sub index_git_blob_id {
480 my ($doc, $pfx, $objid) = @_;
482 my $len = length($objid);
483 for (my $len = length($objid); $len >= 7; ) {
484 $doc->add_term($pfx.$objid);
485 $objid = substr($objid, 0, --$len);
490 my ($self, $mime) = @_;
491 my $mid = eval { mid_clean(mid_mime($mime)) };
492 $self->remove_message($mid) if defined $mid;
496 my ($self, $mime) = @_;
497 my $mid = mid_clean(mid_mime($mime));
498 my $mm = $self->{mm};
501 if (defined $self->{regen_down}) {
502 $num = $mm->num_for($mid) and return $num;
504 while (($num = $self->{regen_down}--) > 0) {
505 if ($mm->mid_set($num, $mid) != 0) {
509 } elsif (defined $self->{regen_up}) {
510 $num = $mm->num_for($mid) and return $num;
512 # this is to fixup old bugs due to add-remove-add
513 while (($num = ++$self->{regen_up})) {
514 if ($mm->mid_set($num, $mid) != 0) {
520 $num = $mm->mid_insert($mid) and return $num;
522 # fallback to num_for since filters like RubyLang set the number
527 my ($self, $mime) = @_;
528 $self->{mm}->mid_delete(mid_clean(mid_mime($mime)));
532 my ($self, $mime, $bytes, $blob) = @_;
533 my $num = index_mm($self, $mime);
534 add_message($self, $mime, $bytes, $num, $blob);
538 my ($self, $mime) = @_;
539 unindex_blob($self, $mime);
540 unindex_mm($self, $mime);
544 my ($git, $blob, $sizeref) = @_;
546 my $str = $git->cat_file($blob, $sizeref);
547 # fixup bugs from import:
548 $$str =~ s/\A[\r\n]*From [^\r\n]*\r?\n//s;
549 PublicInbox::MIME->new($str);
554 # called by public-inbox-index
556 my ($self, $opts) = @_;
557 delete $self->{lock_path} if $opts->{-skip_lock};
558 $self->{-inbox}->with_umask(sub { $self->_index_sync($opts) })
561 sub batch_adjust ($$$$$) {
562 my ($max, $bytes, $batch_cb, $latest, $nr) = @_;
566 $batch_cb->($nr, $latest);
572 my ($self, $log, $add_cb, $del_cb, $batch_cb) = @_;
573 my $hex = '[a-f0-9]';
574 my $h40 = $hex .'{40}';
575 my $addmsg = qr!^:000000 100644 \S+ ($h40) A\t${hex}{2}/${hex}{38}$!;
576 my $delmsg = qr!^:100644 000000 ($h40) \S+ D\t${hex}{2}/${hex}{38}$!;
577 my $git = $self->{git};
580 my $max = BATCH_BYTES;
586 while (defined($line = <$log>)) {
587 if ($line =~ /$addmsg/o) {
589 if (delete $D{$blob}) {
590 if (defined $self->{regen_down}) {
591 my $num = $self->{regen_down}--;
592 $self->{mm}->num_highwater($num);
596 my $mime = do_cat_mail($git, $blob, \$bytes) or next;
597 batch_adjust(\$max, $bytes, $batch_cb, $latest, ++$nr);
598 $add_cb->($self, $mime, $bytes, $blob);
599 } elsif ($line =~ /$delmsg/o) {
602 } elsif ($line =~ /^commit ($h40)/o) {
607 close($log) or die "git log failed: \$?=$?";
609 foreach my $blob (keys %D) {
610 my $mime = do_cat_mail($git, $blob, \$bytes) or next;
611 $del_cb->($self, $mime);
613 $batch_cb->($nr, $latest, $newest);
618 die "BUG: _msgmap_init is only for v1\n" if $self->{version} != 1;
619 $self->{mm} ||= eval {
620 require PublicInbox::Msgmap;
621 PublicInbox::Msgmap->new($self->{inboxdir}, 1);
626 my ($self, $opts, $range) = @_;
627 my $git = $self->{git};
629 if (index($range, '..') < 0) {
630 # don't show annoying git errrors to users who run -index
632 $git->qx(qw(rev-parse -q --verify), "$range^0");
634 open my $fh, '<', '/dev/null' or
635 die "failed to open /dev/null: $!\n";
640 # Count the new files so they can be added newest to oldest
641 # and still have numbers increasing from oldest to newest
643 my $pr = $opts->{-progress};
644 $pr->("counting changes\n\t$range ... ") if $pr;
645 # can't use 'rev-list --count' if we use --diff-filter
646 my $fh = $git->popen(qw(log --pretty=tformat:%h
647 --no-notes --no-color --no-renames
648 --diff-filter=AM), $range);
649 ++$fcount while <$fh>;
650 close $fh or die "git log failed: \$?=$?";
651 my $high = $self->{mm}->num_highwater;
652 $pr->("$fcount\n") if $pr; # continue previous line
653 $self->{ntodo} = $fcount;
655 if (index($range, '..') < 0) {
656 if ($high && $high == $fcount) {
657 # fix up old bugs in full indexes which caused messages to
658 # not appear in Msgmap
659 $self->{regen_up} = $high;
661 # normal regen is for for fresh data
662 $self->{regen_down} = $fcount;
665 # Give oldest messages the smallest numbers
666 $self->{regen_down} = $high + $fcount;
669 $git->popen(qw/log --no-notes --no-color --no-renames
670 --raw -r --no-abbrev/, $range);
673 # --is-ancestor requires git 1.8.0+
674 sub is_ancestor ($$$) {
675 my ($git, $cur, $tip) = @_;
676 return 0 unless $git->check($cur);
677 my $cmd = [ 'git', "--git-dir=$git->{git_dir}",
678 qw(merge-base --is-ancestor), $cur, $tip ];
679 my $pid = spawn($cmd);
680 defined $pid or die "spawning ".join(' ', @$cmd)." failed: $!";
681 waitpid($pid, 0) == $pid or die join(' ', @$cmd) .' did not finish';
685 sub need_update ($$$) {
686 my ($self, $cur, $new) = @_;
687 my $git = $self->{git};
688 return 1 if $cur && !is_ancestor($git, $cur, $new);
689 my $range = $cur eq '' ? $new : "$cur..$new";
690 chomp(my $n = $git->qx(qw(rev-list --count), $range));
691 ($n eq '' || $n > 0);
694 # The last git commit we indexed with Xapian or SQLite (msgmap)
695 # This needs to account for cases where Xapian or SQLite is
696 # out-of-date with respect to the other.
698 my ($self, $mm) = @_;
699 my $lm = $mm->last_commit || '';
701 if (need_xapian($self)) {
702 $lx = $self->{xdb}->get_metadata('last_commit') || '';
706 # Use last_commit from msgmap if it is older or unset
707 if (!$lm || ($lx && $lm && is_ancestor($self->{git}, $lm, $lx))) {
713 sub reindex_from ($$) {
714 my ($reindex, $last_commit) = @_;
715 return $last_commit unless $reindex;
716 ref($reindex) eq 'HASH' ? $reindex->{from} : '';
719 # indexes all unindexed messages (v1 only)
721 my ($self, $opts) = @_;
722 my $tip = $opts->{ref} || 'HEAD';
723 my ($last_commit, $lx, $xlog);
724 my $git = $self->{git};
726 my $pr = $opts->{-progress};
728 my $xdb = $self->begin_txn_lazy;
729 my $mm = _msgmap_init($self);
732 close($xlog) or die "git log failed: \$?=$?";
735 $last_commit = _last_x_commit($self, $mm);
736 $lx = reindex_from($opts->{reindex}, $last_commit);
738 $self->{over}->rollback_lazy;
739 $self->{over}->disconnect;
742 $xdb->cancel_transaction if $xdb;
743 $xdb = _xdb_release($self);
745 # ensure we leak no FDs to "git log" with Xapian <= 1.2
746 my $range = $lx eq '' ? $tip : "$lx..$tip";
747 $xlog = _git_log($self, $opts, $range);
749 $xdb = $self->begin_txn_lazy;
750 } while (_last_x_commit($self, $mm) ne $last_commit);
752 my $dbh = $mm->{dbh} if $mm;
754 my ($nr, $commit, $newest) = @_;
757 my $cur = $mm->last_commit || '';
758 if (need_update($self, $cur, $newest)) {
759 $mm->last_commit($newest);
764 if ($newest && need_xapian($self)) {
765 my $cur = $xdb->get_metadata('last_commit');
766 if (need_update($self, $cur, $newest)) {
767 $xdb->set_metadata('last_commit', $newest);
770 $self->commit_txn_lazy;
772 $xdb = _xdb_release($self);
773 # let another process do some work... <
774 $pr->("indexed $nr/$self->{ntodo}\n") if $pr && $nr;
776 $xdb = $self->begin_txn_lazy;
777 $dbh->begin_work if $dbh;
782 read_log($self, $xlog, *index_both, *unindex_both, $cb);
786 # order matters for unlocking
787 $_[0]->{xdb} = undef;
788 $_[0]->{lockfh} = undef;
791 # remote_* subs are only used by SearchIdxPart
794 if (my $w = $self->{w}) {
795 print $w "commit\n" or die "failed to write commit: $!";
797 $self->commit_txn_lazy;
803 if (my $w = delete $self->{w}) {
804 my $pid = delete $self->{pid} or die "no process to wait on\n";
805 print $w "close\n" or die "failed to write to pid:$pid: $!\n";
806 close $w or die "failed to close pipe for pid:$pid: $!\n";
807 waitpid($pid, 0) == $pid or die "remote process did not finish";
808 $? == 0 or die ref($self)." pid:$pid exited with: $?";
810 die "transaction in progress $self\n" if $self->{txn};
811 $self->_xdb_release if $self->{xdb};
816 my ($self, $oid, $mid) = @_;
817 if (my $w = $self->{w}) {
818 # triggers remove_by_oid in a shard
819 print $w "D $oid $mid\n" or die "failed to write remove $!";
821 $self->begin_txn_lazy;
822 $self->remove_by_oid($oid, $mid);
828 return if $self->{txn};
830 $self->{-inbox}->with_umask(sub {
831 my $xdb = $self->{xdb} || $self->_xdb_acquire;
832 $self->{over}->begin_lazy if $self->{over};
833 $xdb->begin_transaction if $xdb;
839 sub commit_txn_lazy {
841 delete $self->{txn} or return;
842 $self->{-inbox}->with_umask(sub {
843 if (my $xdb = $self->{xdb}) {
845 # store 'indexlevel=medium' in v2 shard=0 and
846 # v1 (only one shard)
847 # This metadata is read by Admin::detect_indexlevel:
848 if (!$self->{shard} # undef or 0, not >0
849 && $self->{indexlevel} eq 'medium') {
850 $xdb->set_metadata('indexlevel', 'medium');
853 $xdb->commit_transaction;
855 $self->{over}->commit_lazy if $self->{over};
861 if (need_xapian($self)) {
862 die "$$ $0 xdb not released\n" if $self->{xdb};
864 die "$$ $0 still in transaction\n" if $self->{txn};