1 # Copyright (C) 2015-2020 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 parent qw(PublicInbox::Search PublicInbox::Lock Exporter);
14 use PublicInbox::InboxWritable;
15 use PublicInbox::MID qw(mids_for_index mids);
16 use PublicInbox::MsgIter;
17 use PublicInbox::IdxStack;
19 use POSIX qw(strftime);
20 use PublicInbox::OverIdx;
21 use PublicInbox::Spawn qw(spawn);
22 use PublicInbox::Git qw(git_unquote);
23 use PublicInbox::MsgTime qw(msg_timestamp msg_datestamp);
24 our @EXPORT_OK = qw(crlf_adjust log2stack is_ancestor check_size nodatacow_dir);
25 my $X = \%PublicInbox::Search::X;
26 my ($DB_CREATE_OR_OPEN, $DB_OPEN);
28 our $BATCH_BYTES = $ENV{XAPIAN_FLUSH_THRESHOLD} ? 0x7fffffff : 1_000_000;
29 use constant DEBUG => !!$ENV{DEBUG};
31 my $xapianlevels = qr/\A(?:full|medium)\z/;
33 my $OID = $hex .'{40,}';
36 my ($class, $ibx, $creat, $shard) = @_;
37 ref $ibx or die "BUG: expected PublicInbox::Inbox object: $ibx";
38 my $levels = qr/\A(?:full|medium|basic)\z/;
39 my $inboxdir = $ibx->{inboxdir};
40 my $version = $ibx->version;
41 my $indexlevel = 'full';
42 my $altid = $ibx->{altid};
44 require PublicInbox::AltId;
45 $altid = [ map { PublicInbox::AltId->new($ibx, $_); } @$altid ];
47 if ($ibx->{indexlevel}) {
48 if ($ibx->{indexlevel} =~ $levels) {
49 $indexlevel = $ibx->{indexlevel};
51 die("Invalid indexlevel $ibx->{indexlevel}\n");
54 $ibx = PublicInbox::InboxWritable->new($ibx);
57 xpfx => $inboxdir, # for xpfx_init
60 indexlevel => $indexlevel,
63 $self->{-set_indexlevel_once} = 1 if $indexlevel eq 'medium';
66 $self->{lock_path} = "$inboxdir/ssoma.lock";
67 my $dir = $self->xdir;
68 $self->{over} = PublicInbox::OverIdx->new("$dir/over.sqlite3");
69 $self->{over}->{-no_fsync} = 1 if $ibx->{-no_fsync};
70 $self->{index_max_size} = $ibx->{index_max_size};
71 } elsif ($version == 2) {
72 defined $shard or die "shard is required for v2\n";
74 $self->{shard} = $shard;
75 $self->{lock_path} = undef;
77 die "unsupported inbox version=$version\n";
79 $self->{creat} = ($creat || 0) == 1;
83 sub need_xapian ($) { $_[0]->{indexlevel} =~ $xapianlevels }
86 my ($self, $wake) = @_;
87 if (need_xapian($self)) {
88 my $xdb = delete $self->{xdb} or croak 'not acquired';
91 $self->lock_release($wake) if $self->{creat};
95 sub load_xapian_writable () {
96 return 1 if $X->{WritableDatabase};
97 PublicInbox::Search::load_xapian() or return;
98 my $xap = $PublicInbox::Search::Xap;
99 for (qw(Document TermGenerator WritableDatabase)) {
100 $X->{$_} = $xap.'::'.$_;
102 eval 'require '.$X->{WritableDatabase} or die;
103 *sortable_serialise = $xap.'::sortable_serialise';
104 $DB_CREATE_OR_OPEN = eval($xap.'::DB_CREATE_OR_OPEN()');
105 $DB_OPEN = eval($xap.'::DB_OPEN()');
106 my $ver = (eval($xap.'::major_version()') << 16) |
107 (eval($xap.'::minor_version()') << 8);
108 $DB_NO_SYNC = 0x4 if $ver >= 0x10400;
112 sub nodatacow_dir ($) {
114 opendir my $dh, $dir or die "opendir($dir): $!\n";
115 PublicInbox::Spawn::set_nodatacow(fileno($dh));
121 my $dir = $self->xdir;
122 if (need_xapian($self)) {
123 croak 'already acquired' if $self->{xdb};
124 load_xapian_writable();
125 $flag = $self->{creat} ? $DB_CREATE_OR_OPEN : $DB_OPEN;
127 if ($self->{creat}) {
131 # don't create empty Xapian directories if we don't need Xapian
132 my $is_shard = defined($self->{shard});
133 if (!-d $dir && (!$is_shard ||
134 ($is_shard && need_xapian($self)))) {
135 File::Path::mkpath($dir);
139 return unless defined $flag;
140 $flag |= $DB_NO_SYNC if $self->{ibx}->{-no_fsync};
141 my $xdb = eval { ($X->{WritableDatabase})->new($dir, $flag) };
143 die "Failed opening $dir: ", $@;
149 my ($doc, $col, $num) = @_;
150 $num = sortable_serialise($num);
151 $doc->add_value($col, $num);
154 sub term_generator ($) { # write-only
157 $self->{term_generator} //= do {
158 my $tg = $X->{TermGenerator}->new;
159 $tg->set_stemmer($self->stemmer);
164 sub index_text ($$$$) {
165 my ($self, $text, $wdf_inc, $prefix) = @_;
166 my $tg = term_generator($self); # man Search::Xapian::TermGenerator
168 if ($self->{indexlevel} eq 'full') {
169 $tg->index_text($text, $wdf_inc, $prefix);
170 $tg->increase_termpos;
172 $tg->index_text_without_positions($text, $wdf_inc, $prefix);
176 sub index_headers ($$) {
177 my ($self, $smsg) = @_;
178 my @x = (from => 'A', # Author
179 subject => 'S', to => 'XTO', cc => 'XCC');
180 while (my ($field, $pfx) = splice(@x, 0, 2)) {
181 my $val = $smsg->{$field};
182 index_text($self, $val, 1, $pfx) if $val ne '';
186 sub index_diff_inc ($$$$) {
187 my ($self, $text, $pfx, $xnq) = @_;
189 index_text($self, join("\n", @$xnq), 1, 'XNQ');
192 index_text($self, $text, 1, $pfx);
195 sub index_old_diff_fn {
196 my ($self, $seen, $fa, $fb, $xnq) = @_;
198 # no renames or space support for traditional diffs,
199 # find the number of leading common paths to strip:
200 my @fa = split('/', $fa);
201 my @fb = split('/', $fb);
202 while (scalar(@fa) && scalar(@fb)) {
203 $fa = join('/', @fa);
204 $fb = join('/', @fb);
206 unless ($seen->{$fa}++) {
207 index_diff_inc($self, $fa, 'XDFN', $xnq);
217 sub index_diff ($$$) {
218 my ($self, $txt, $doc) = @_;
223 foreach (split(/\n/, $txt)) {
224 if ($in_diff && s/^ //) { # diff context
225 index_diff_inc($self, $_, 'XDFCTX', $xnq);
226 } elsif (/^-- $/) { # email signature begins
228 } elsif (m!^diff --git "?[^/]+/.+ "?[^/]+/.+\z!) {
229 # wait until "---" and "+++" to capture filenames
232 } elsif (m/^diff -(.+) (\S+) (\S+)$/) {
233 my ($opt, $fa, $fb) = ($1, $2, $3);
235 # only support unified:
236 next unless $opt =~ /[uU]/;
237 $in_diff = index_old_diff_fn($self, \%seen, $fa, $fb,
239 } elsif (m!^--- ("?[^/]+/.+)!) {
241 $fn = (split('/', git_unquote($fn), 2))[1];
242 $seen{$fn}++ or index_diff_inc($self, $fn, 'XDFN', $xnq);
244 } elsif (m!^\+\+\+ ("?[^/]+/.+)!) {
246 $fn = (split('/', git_unquote($fn), 2))[1];
247 $seen{$fn}++ or index_diff_inc($self, $fn, 'XDFN', $xnq);
249 } elsif (/^--- (\S+)/) {
252 } elsif (defined $in_diff && /^\+\+\+ (\S+)/) {
253 $in_diff = index_old_diff_fn($self, \%seen, $in_diff,
255 } elsif ($in_diff && s/^\+//) { # diff added
256 index_diff_inc($self, $_, 'XDFB', $xnq);
257 } elsif ($in_diff && s/^-//) { # diff removed
258 index_diff_inc($self, $_, 'XDFA', $xnq);
259 } elsif (m!^index ([a-f0-9]+)\.\.([a-f0-9]+)!) {
260 my ($ba, $bb) = ($1, $2);
261 index_git_blob_id($doc, 'XDFPRE', $ba);
262 index_git_blob_id($doc, 'XDFPOST', $bb);
264 } elsif (/^@@ (?:\S+) (?:\S+) @@\s*$/) {
265 # traditional diff w/o -p
266 } elsif (/^@@ (?:\S+) (?:\S+) @@\s*(\S+.*)$/) {
267 # hunk header context
268 index_diff_inc($self, $1, 'XDFHH', $xnq);
269 # ignore the following lines:
270 } elsif (/^(?:dis)similarity index/ ||
271 /^(?:old|new) mode/ ||
272 /^(?:deleted|new) file mode/ ||
273 /^(?:copy|rename) (?:from|to) / ||
274 /^(?:dis)?similarity index / ||
275 /^\\ No newline at end of file/ ||
276 /^Binary files .* differ/) {
279 # possible to be in diff context, some mail may be
280 # stripped by MUA or even GNU diff(1). "git apply"
281 # treats a bare "\n" as diff context, too
284 warn "non-diff line: $_\n" if DEBUG && $_ ne '';
289 index_text($self, join("\n", @xnq), 1, 'XNQ');
292 sub index_xapian { # msg_iter callback
293 my $part = $_[0]->[0]; # ignore $depth and $idx
294 my ($self, $doc) = @{$_[1]};
295 my $ct = $part->content_type || 'text/plain';
296 my $fn = $part->filename;
297 if (defined $fn && $fn ne '') {
298 index_text($self, $fn, 1, 'XFN');
300 if ($part->{is_submsg}) {
301 my $mids = mids_for_index($part);
302 index_ids($self, $doc, $part, $mids);
303 my $smsg = bless {}, 'PublicInbox::Smsg';
304 $smsg->populate($part);
305 index_headers($self, $smsg);
308 my ($s, undef) = msg_part_text($part, $ct);
309 defined $s or return;
310 $_[0]->[0] = $part = undef; # free memory
312 # split off quoted and unquoted blocks:
313 my @sections = PublicInbox::MsgIter::split_quotes($s);
314 undef $s; # free memory
315 for my $txt (@sections) {
317 index_text($self, $txt, 0, 'XQUOT');
319 # does it look like a diff?
320 if ($txt =~ /^(?:diff|---|\+\+\+) /ms) {
321 index_diff($self, $txt, $doc);
323 index_text($self, $txt, 1, 'XNQ');
326 undef $txt; # free memory
330 sub index_ids ($$$$) {
331 my ($self, $doc, $hdr, $mids) = @_;
332 for my $mid (@$mids) {
333 index_text($self, $mid, 1, 'XM');
335 # because too many Message-IDs are prefixed with
337 if ($mid =~ /\w{12,}/) {
338 my @long = ($mid =~ /(\w{3,}+)/g);
339 index_text($self, join(' ', @long), 1, 'XM');
342 $doc->add_boolean_term('Q' . $_) for @$mids;
343 for my $l ($hdr->header_raw('List-Id')) {
344 $l =~ /<([^>]+)>/ or next;
346 $doc->add_boolean_term('G' . $lid);
347 index_text($self, $lid, 1, 'XL'); # probabilistic
351 sub add_xapian ($$$$) {
352 my ($self, $eml, $smsg, $mids) = @_;
353 my $doc = $X->{Document}->new;
354 add_val($doc, PublicInbox::Search::TS(), $smsg->{ts});
355 my @ds = gmtime($smsg->{ds});
356 my $yyyymmdd = strftime('%Y%m%d', @ds);
357 add_val($doc, PublicInbox::Search::YYYYMMDD(), $yyyymmdd);
358 my $dt = strftime('%Y%m%d%H%M%S', @ds);
359 add_val($doc, PublicInbox::Search::DT(), $dt);
360 add_val($doc, PublicInbox::Search::BYTES(), $smsg->{bytes});
361 add_val($doc, PublicInbox::Search::UID(), $smsg->{num});
363 my $tg = term_generator($self);
364 $tg->set_document($doc);
365 index_headers($self, $smsg);
367 msg_iter($eml, \&index_xapian, [ $self, $doc ]);
368 index_ids($self, $doc, $eml, $mids);
369 $smsg->{to} = $smsg->{cc} = ''; # WWW doesn't need these, only NNTP
370 PublicInbox::OverIdx::parse_references($smsg, $eml, $mids);
371 my $data = $smsg->to_doc_data;
372 $doc->set_data($data);
373 if (my $altid = $self->{-altid}) {
374 foreach my $alt (@$altid) {
375 my $pfx = $alt->{xprefix};
376 foreach my $mid (@$mids) {
377 my $id = $alt->mid2alt($mid);
378 next unless defined $id;
379 $doc->add_boolean_term($pfx . $id);
383 $self->{xdb}->replace_document($smsg->{num}, $doc);
386 sub _msgmap_init ($) {
388 die "BUG: _msgmap_init is only for v1\n" if $self->{ibx_ver} != 1;
389 $self->{mm} //= eval {
390 require PublicInbox::Msgmap;
391 my $rw = $self->{ibx}->{-no_fsync} ? 2 : 1;
392 PublicInbox::Msgmap->new($self->{ibx}->{inboxdir}, $rw);
397 # mime = PublicInbox::Eml or Email::MIME object
398 my ($self, $mime, $smsg, $sync) = @_;
399 my $mids = mids_for_index($mime);
400 $smsg //= bless { blob => '' }, 'PublicInbox::Smsg'; # test-only compat
401 $smsg->{mid} //= $mids->[0]; # v1 compatibility
402 $smsg->{num} //= do { # v1
404 index_mm($self, $mime, $smsg->{blob}, $sync);
408 $smsg->populate($mime, $sync);
409 $smsg->{bytes} //= length($mime->as_string);
412 # order matters, overview stores every possible piece of
413 # data in doc_data (deflated). Xapian only stores a subset
414 # of the fields which exist in over.sqlite3. We may stop
415 # storing doc_data in Xapian sometime after we get multi-inbox
417 if (my $over = $self->{over}) { # v1 only
418 $over->add_overview($mime, $smsg);
420 if (need_xapian($self)) {
421 add_xapian($self, $mime, $smsg, $mids);
426 warn "failed to index message <".join('> <',@$mids).">: $@\n";
433 my ($self, $oid, @removed) = @_;
434 my $xdb = $self->{xdb} or return;
435 for my $num (@removed) {
436 my $doc = eval { $xdb->get_document($num) };
438 warn "E: $@\n" if $@;
439 warn "E: #$num $oid missing in Xapian\n";
442 my $smsg = bless {}, 'PublicInbox::Smsg';
443 $smsg->load_expand($doc);
444 my $blob = $smsg->{blob} // '(unset)';
446 $xdb->delete_document($num);
448 warn "E: #$num $oid != $blob in Xapian\n";
454 my ($self, $oid, $num) = @_;
455 die "BUG: remove_by_oid is v2-only\n" if $self->{over};
456 $self->begin_txn_lazy;
457 xdb_remove($self, $oid, $num) if need_xapian($self);
460 sub index_git_blob_id {
461 my ($doc, $pfx, $objid) = @_;
463 my $len = length($objid);
464 for (my $len = length($objid); $len >= 7; ) {
465 $doc->add_term($pfx.$objid);
466 $objid = substr($objid, 0, --$len);
472 my ($self, $oid, $eml) = @_;
473 my $mids = mids($eml);
476 for my $mid (@$mids) {
477 my @removed = eval { $self->{over}->remove_oid($oid, $mid) };
479 warn "E: failed to remove <$mid> from overview: $@\n";
481 $nr += scalar @removed;
482 $tmp{$_}++ for @removed;
486 $mids = join('> <', @$mids);
487 warn "W: <$mids> missing for removal from overview\n";
489 while (my ($num, $nr) = each %tmp) {
490 warn "BUG: $num appears >1 times ($nr) for $oid\n" if $nr != 1;
493 $self->{mm}->num_delete($_) for (keys %tmp);
494 } else { # just in case msgmap and over.sqlite3 become desynched:
495 $self->{mm}->mid_delete($mids->[0]);
497 xdb_remove($self, $oid, keys %tmp) if need_xapian($self);
501 my ($self, $mime, $oid, $sync) = @_;
502 my $mids = mids($mime);
503 my $mm = $self->{mm};
504 if ($sync->{reindex}) {
505 my $over = $self->{over};
506 for my $mid (@$mids) {
507 my ($num, undef) = $over->num_mid0_for_oid($oid, $mid);
508 return $num if defined $num;
510 $mm->num_for($mids->[0]) // $mm->mid_insert($mids->[0]);
512 # fallback to num_for since filters like RubyLang set the number
513 $mm->mid_insert($mids->[0]) // $mm->num_for($mids->[0]);
517 # returns the number of bytes to add if given a non-CRLF arg
518 sub crlf_adjust ($) {
519 if (index($_[0], "\r\n") < 0) {
520 # common case is LF-only, every \n needs an \r;
521 # so favor a cheap tr// over an expensive m//g
523 } else { # count number of '\n' w/o '\r', expensive:
524 scalar(my @n = ($_[0] =~ m/(?<!\r)\n/g));
528 sub index_both { # git->cat_async callback
529 my ($bref, $oid, $type, $size, $sync) = @_;
530 my ($nr, $max) = @$sync{qw(nr max)};
533 $size += crlf_adjust($$bref);
534 my $smsg = bless { bytes => $size, blob => $oid }, 'PublicInbox::Smsg';
535 my $self = $sync->{sidx};
536 my $eml = PublicInbox::Eml->new($bref);
537 $smsg->{num} = index_mm($self, $eml, $oid, $sync) or
538 die "E: could not generate NNTP article number for $oid";
539 add_message($self, $eml, $smsg, $sync);
542 sub unindex_both { # git->cat_async callback
543 my ($bref, $oid, $type, $size, $self) = @_;
544 unindex_eml($self, $oid, PublicInbox::Eml->new($bref));
547 # called by public-inbox-index
549 my ($self, $opts) = @_;
550 delete $self->{lock_path} if $opts->{-skip_lock};
551 $self->{ibx}->with_umask(\&_index_sync, $self, $opts);
552 if ($opts->{reindex}) {
554 delete @again{qw(rethread reindex)};
555 index_sync($self, \%again);
559 sub check_size { # check_async cb for -index --max-size=...
560 my ($oid, $type, $size, $arg, $git) = @_;
561 (($type // '') eq 'blob') or die "E: bad $oid in $git->{git_dir}";
562 if ($size <= $arg->{index_max_size}) {
563 $git->cat_async($oid, $arg->{index_oid}, $arg);
565 warn "W: skipping $oid ($size > $arg->{index_max_size})\n";
569 sub v1_checkpoint ($$;$) {
570 my ($self, $sync, $stk) = @_;
571 $self->{ibx}->git->check_async_wait;
572 $self->{ibx}->git->cat_async_wait;
574 # latest_cmt may be undef
575 my $newest = $stk ? $stk->{latest_cmt} : undef;
577 my $cur = $self->{mm}->last_commit || '';
578 if (need_update($self, $cur, $newest)) {
579 $self->{mm}->last_commit($newest);
582 ${$sync->{max}} = $BATCH_BYTES;
585 $self->{mm}->{dbh}->commit;
586 if ($newest && need_xapian($self)) {
587 my $cur = $self->{xdb}->get_metadata('last_commit');
588 if (need_update($self, $cur, $newest)) {
589 $self->{xdb}->set_metadata('last_commit', $newest);
593 $self->{over}->rethread_done($sync->{-opt}) if $newest; # all done
594 commit_txn_lazy($self);
595 $self->{ibx}->git->cleanup;
596 my $nr = ${$sync->{nr}};
597 idx_release($self, $nr);
598 # let another process do some work...
599 if (my $pr = $sync->{-opt}->{-progress}) {
600 $pr->("indexed $nr/$sync->{ntodo}\n") if $nr;
602 if (!$stk) { # more to come
603 begin_txn_lazy($self);
604 $self->{mm}->{dbh}->begin_work;
610 my ($self, $sync, $stk) = @_;
611 my $git = $self->{ibx}->git;
612 my $max = $BATCH_BYTES;
615 $sync->{max} = \$max;
616 $sync->{sidx} = $self;
618 $self->{mm}->{dbh}->begin_work;
619 if (my @leftovers = keys %{delete($sync->{D}) // {}}) {
620 warn('W: unindexing '.scalar(@leftovers)." leftovers\n");
621 for my $oid (@leftovers) {
622 $oid = unpack('H*', $oid);
623 $git->cat_async($oid, \&unindex_both, $self);
626 if ($sync->{index_max_size} = $self->{ibx}->{index_max_size}) {
627 $sync->{index_oid} = \&index_both;
629 while (my ($f, $at, $ct, $oid) = $stk->pop_rec) {
631 my $arg = { %$sync, autime => $at, cotime => $ct };
632 if ($sync->{index_max_size}) {
633 $git->check_async($oid, \&check_size, $arg);
635 $git->cat_async($oid, \&index_both, $arg);
637 v1_checkpoint($self, $sync) if $max <= 0;
638 } elsif ($f eq 'd') {
639 $git->cat_async($oid, \&unindex_both, $self);
642 v1_checkpoint($self, $sync, $stk);
645 sub log2stack ($$$$) {
646 my ($sync, $git, $range, $ibx) = @_;
647 my $D = $sync->{D}; # OID_BIN => NR (if reindexing, undef otherwise)
649 if ($ibx->version == 1) {
650 my $path = $hex.'{2}/'.$hex.'{38}';
651 $add = qr!\A:000000 100644 \S+ ($OID) A\t$path$!;
652 $del = qr!\A:100644 000000 ($OID) \S+ D\t$path$!;
654 $del = qr!\A:\d{6} 100644 $OID ($OID) [AM]\td$!;
655 $add = qr!\A:\d{6} 100644 $OID ($OID) [AM]\tm$!;
658 # Count the new files so they can be added newest to oldest
659 # and still have numbers increasing from oldest to newest
660 my $fh = $git->popen(qw(log --raw -r --pretty=tformat:%at-%ct-%H
661 --no-notes --no-color --no-renames --no-abbrev),
665 if (/\A([0-9]+)-([0-9]+)-($OID)$/o) {
666 ($at, $ct) = ($1 + 0, $2 + 0);
667 $stk //= PublicInbox::IdxStack->new($3);
670 if ($D) { # reindex case
671 $D->{pack('H*', $oid)}++;
672 } else { # non-reindex case:
673 $stk->push_rec('d', $at, $ct, $oid);
678 my $oid_bin = pack('H*', $oid);
679 my $nr = --$D->{$oid_bin};
680 delete($D->{$oid_bin}) if $nr <= 0;
682 # nr < 0 (-1) means it never existed
683 $stk->push_rec('m', $at, $ct, $oid) if $nr < 0;
685 $stk->push_rec('m', $at, $ct, $oid);
689 close $fh or die "git log failed: \$?=$?";
690 $stk //= PublicInbox::IdxStack->new;
694 sub prepare_stack ($$$) {
695 my ($self, $sync, $range) = @_;
696 my $git = $self->{ibx}->git;
698 if (index($range, '..') < 0) {
699 # don't show annoying git errors to users who run -index
701 $git->qx(qw(rev-parse -q --verify), "$range^0");
702 return PublicInbox::IdxStack->new->read_prepare if $?;
704 $sync->{D} = $sync->{reindex} ? {} : undef; # OID_BIN => NR
705 log2stack($sync, $git, $range, $self->{ibx});
708 # --is-ancestor requires git 1.8.0+
709 sub is_ancestor ($$$) {
710 my ($git, $cur, $tip) = @_;
711 return 0 unless $git->check($cur);
712 my $cmd = [ 'git', "--git-dir=$git->{git_dir}",
713 qw(merge-base --is-ancestor), $cur, $tip ];
714 my $pid = spawn($cmd);
715 waitpid($pid, 0) == $pid or die join(' ', @$cmd) .' did not finish';
719 sub need_update ($$$) {
720 my ($self, $cur, $new) = @_;
721 my $git = $self->{ibx}->git;
722 return 1 if $cur && !is_ancestor($git, $cur, $new);
723 my $range = $cur eq '' ? $new : "$cur..$new";
724 chomp(my $n = $git->qx(qw(rev-list --count), $range));
725 ($n eq '' || $n > 0);
728 # The last git commit we indexed with Xapian or SQLite (msgmap)
729 # This needs to account for cases where Xapian or SQLite is
730 # out-of-date with respect to the other.
732 my ($self, $mm) = @_;
733 my $lm = $mm->last_commit || '';
735 if (need_xapian($self)) {
736 $lx = $self->{xdb}->get_metadata('last_commit') || '';
740 # Use last_commit from msgmap if it is older or unset
741 if (!$lm || ($lx && $lm && is_ancestor($self->{ibx}->git, $lm, $lx))) {
747 sub reindex_from ($$) {
748 my ($reindex, $last_commit) = @_;
749 return $last_commit unless $reindex;
750 ref($reindex) eq 'HASH' ? $reindex->{from} : '';
753 # indexes all unindexed messages (v1 only)
755 my ($self, $opts) = @_;
756 my $tip = $opts->{ref} || 'HEAD';
757 my $git = $self->{ibx}->git;
759 my $pr = $opts->{-progress};
760 my $sync = { reindex => $opts->{reindex}, -opt => $opts };
761 my $xdb = $self->begin_txn_lazy;
762 $self->{over}->rethread_prepare($opts);
763 my $mm = _msgmap_init($self);
764 if ($sync->{reindex}) {
765 my $last = $mm->last_commit;
769 # somebody just blindly added --reindex when indexing
770 # for the first time, allow it:
771 undef $sync->{reindex};
774 my $last_commit = _last_x_commit($self, $mm);
775 my $lx = reindex_from($sync->{reindex}, $last_commit);
776 my $range = $lx eq '' ? $tip : "$lx..$tip";
777 $pr->("counting changes\n\t$range ... ") if $pr;
778 my $stk = prepare_stack($self, $sync, $range);
779 $sync->{ntodo} = $stk ? $stk->num_records : 0;
780 $pr->("$sync->{ntodo}\n") if $pr; # continue previous line
781 process_stack($self, $sync, $stk);
785 # order matters for unlocking
786 $_[0]->{xdb} = undef;
787 $_[0]->{lockfh} = undef;
790 # remote_* subs are only used by SearchIdxPart
793 if (my $w = $self->{w}) {
794 print $w "commit\n" or die "failed to write commit: $!";
796 $self->commit_txn_lazy;
802 if (my $w = delete $self->{w}) {
803 my $pid = delete $self->{pid} or die "no process to wait on\n";
804 print $w "close\n" or die "failed to write to pid:$pid: $!\n";
805 close $w or die "failed to close pipe for pid:$pid: $!\n";
806 waitpid($pid, 0) == $pid or die "remote process did not finish";
807 $? == 0 or die ref($self)." pid:$pid exited with: $?";
809 die "transaction in progress $self\n" if $self->{txn};
810 idx_release($self) if $self->{xdb};
815 my ($self, $oid, $num) = @_;
816 if (my $w = $self->{w}) {
817 # triggers remove_by_oid in a shard
818 print $w "D $oid $num\n" or die "failed to write remove $!";
820 $self->remove_by_oid($oid, $num);
826 my $xdb = $self->{xdb} || idx_acquire($self);
827 $self->{over}->begin_lazy if $self->{over};
828 $xdb->begin_transaction if $xdb;
835 $self->{ibx}->with_umask(\&_begin_txn, $self) if !$self->{txn};
838 # store 'indexlevel=medium' in v2 shard=0 and v1 (only one shard)
839 # This metadata is read by Admin::detect_indexlevel:
843 if (!$self->{shard} && # undef or 0, not >0
844 delete($self->{-set_indexlevel_once})) {
845 my $xdb = $self->{xdb};
846 my $level = $xdb->get_metadata('indexlevel');
847 if (!$level || $level ne 'medium') {
848 $xdb->set_metadata('indexlevel', 'medium');
855 if (my $xdb = $self->{xdb}) {
856 set_indexlevel($self);
857 $xdb->commit_transaction;
859 $self->{over}->commit_lazy if $self->{over};
862 sub commit_txn_lazy {
864 delete($self->{txn}) and
865 $self->{ibx}->with_umask(\&_commit_txn, $self);
870 if (need_xapian($self)) {
871 die "$$ $0 xdb not released\n" if $self->{xdb};
873 die "$$ $0 still in transaction\n" if $self->{txn};