1 # Copyright (C) 2015-2018 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::MID qw/mid_clean id_compress mid_mime mids references/;
15 use PublicInbox::MsgIter;
17 use POSIX qw(strftime);
18 require PublicInbox::Git;
23 OLD_PERM_EVERYBODY => 2,
25 PERM_EVERYBODY => 0664,
26 BATCH_BYTES => 1_000_000,
27 DEBUG => !!$ENV{DEBUG},
42 return $s unless ($s =~ /\A"(.*)"\z/);
44 $s =~ s/\\([abfnrtv])/$GIT_ESC{$1}/g;
45 $s =~ s/\\([0-7]{1,3})/chr(oct($1))/ge;
50 my ($class, $ibx, $creat, $part) = @_;
51 my $mainrepo = $ibx; # for "public-inbox-index" w/o entry in config
52 my $git_dir = $mainrepo;
56 $mainrepo = $ibx->{mainrepo};
57 $altid = $ibx->{altid};
58 $version = $ibx->{version} || 1;
60 require PublicInbox::AltId;
62 PublicInbox::AltId->new($ibx, $_);
67 $git = PublicInbox::Git->new($git_dir); # v1 only
69 require Search::Xapian::WritableDatabase;
71 mainrepo => $mainrepo,
76 my $perm = $self->_git_config_perm;
77 my $umask = _umask_for($perm);
78 $self->{umask} = $umask;
80 $self->{lock_path} = "$mainrepo/ssoma.lock";
81 } elsif ($version == 2) {
82 defined $part or die "partition is required for v2\n";
83 # partition is a number or "all"
84 $self->{partition} = $part;
85 $self->{lock_path} = undef;
86 $self->{msgmap_path} = "$mainrepo/msgmap.sqlite3";
88 die "unsupported inbox version=$version\n";
90 $self->{creat} = ($creat || 0) == 1;
96 my $xdb = delete $self->{xdb} or croak 'not acquired';
98 $self->lock_release if $self->{creat};
104 croak 'already acquired' if $self->{xdb};
105 my $dir = $self->xdir;
106 my $flag = Search::Xapian::DB_OPEN;
107 if ($self->{creat}) {
110 File::Path::mkpath($dir);
111 $flag = Search::Xapian::DB_CREATE_OR_OPEN;
113 $self->{xdb} = Search::Xapian::WritableDatabase->new($dir, $flag);
117 my ($doc, $col, $num) = @_;
118 $num = Search::Xapian::sortable_serialise($num);
119 $doc->add_value($col, $num);
122 sub add_values ($$) {
123 my ($doc, $values) = @_;
125 my $ts = $values->[PublicInbox::Search::TS];
126 add_val($doc, PublicInbox::Search::TS, $ts);
128 my $num = $values->[PublicInbox::Search::NUM];
129 defined($num) and add_val($doc, PublicInbox::Search::NUM, $num);
131 my $bytes = $values->[PublicInbox::Search::BYTES];
132 defined($bytes) and add_val($doc, PublicInbox::Search::BYTES, $bytes);
134 my $lines = $values->[PublicInbox::Search::LINES];
135 add_val($doc, PublicInbox::Search::LINES, $lines);
137 my $ds = $values->[PublicInbox::Search::DS];
138 add_val($doc, PublicInbox::Search::DS, $ds);
139 my $yyyymmdd = strftime('%Y%m%d', gmtime($ds));
140 add_val($doc, PublicInbox::Search::YYYYMMDD, $yyyymmdd);
143 sub index_users ($$) {
144 my ($tg, $smsg) = @_;
146 my $from = $smsg->from;
150 $tg->index_text($from, 1, 'A'); # A - author
151 $tg->increase_termpos;
152 $tg->index_text($to, 1, 'XTO') if $to ne '';
153 $tg->increase_termpos;
154 $tg->index_text($cc, 1, 'XCC') if $cc ne '';
155 $tg->increase_termpos;
158 sub index_diff_inc ($$$$) {
159 my ($tg, $text, $pfx, $xnq) = @_;
161 $tg->index_text(join("\n", @$xnq), 1, 'XNQ');
162 $tg->increase_termpos;
165 $tg->index_text($text, 1, $pfx);
166 $tg->increase_termpos;
169 sub index_old_diff_fn {
170 my ($tg, $seen, $fa, $fb, $xnq) = @_;
172 # no renames or space support for traditional diffs,
173 # find the number of leading common paths to strip:
174 my @fa = split('/', $fa);
175 my @fb = split('/', $fb);
176 while (scalar(@fa) && scalar(@fb)) {
177 $fa = join('/', @fa);
178 $fb = join('/', @fb);
180 unless ($seen->{$fa}++) {
181 index_diff_inc($tg, $fa, 'XDFN', $xnq);
191 sub index_diff ($$$) {
192 my ($tg, $lines, $doc) = @_;
198 if ($in_diff && s/^ //) { # diff context
199 index_diff_inc($tg, $_, 'XDFCTX', $xnq);
200 } elsif (/^-- $/) { # email signature begins
202 } elsif (m!^diff --git ("?a/.+) ("?b/.+)\z!) {
203 my ($fa, $fb) = ($1, $2);
204 my $fn = (split('/', git_unquote($fa), 2))[1];
205 $seen{$fn}++ or index_diff_inc($tg, $fn, 'XDFN', $xnq);
206 $fn = (split('/', git_unquote($fb), 2))[1];
207 $seen{$fn}++ or index_diff_inc($tg, $fn, 'XDFN', $xnq);
210 } elsif (m/^diff -(.+) (\S+) (\S+)$/) {
211 my ($opt, $fa, $fb) = ($1, $2, $3);
213 # only support unified:
214 next unless $opt =~ /[uU]/;
215 $in_diff = index_old_diff_fn($tg, \%seen, $fa, $fb,
217 } elsif (m!^--- ("?a/.+)!) {
218 my $fn = (split('/', git_unquote($1), 2))[1];
219 $seen{$fn}++ or index_diff_inc($tg, $fn, 'XDFN', $xnq);
221 } elsif (m!^\+\+\+ ("?b/.+)!) {
222 my $fn = (split('/', git_unquote($1), 2))[1];
223 $seen{$fn}++ or index_diff_inc($tg, $fn, 'XDFN', $xnq);
225 } elsif (/^--- (\S+)/) {
228 } elsif (defined $in_diff && /^\+\+\+ (\S+)/) {
229 $in_diff = index_old_diff_fn($tg, \%seen, $in_diff, $1,
231 } elsif ($in_diff && s/^\+//) { # diff added
232 index_diff_inc($tg, $_, 'XDFB', $xnq);
233 } elsif ($in_diff && s/^-//) { # diff removed
234 index_diff_inc($tg, $_, 'XDFA', $xnq);
235 } elsif (m!^index ([a-f0-9]+)\.\.([a-f0-9]+)!) {
236 my ($ba, $bb) = ($1, $2);
237 index_git_blob_id($doc, 'XDFPRE', $ba);
238 index_git_blob_id($doc, 'XDFPOST', $bb);
240 } elsif (/^@@ (?:\S+) (?:\S+) @@\s*$/) {
241 # traditional diff w/o -p
242 } elsif (/^@@ (?:\S+) (?:\S+) @@\s*(\S+.*)$/) {
243 # hunk header context
244 index_diff_inc($tg, $1, 'XDFHH', $xnq);
245 # ignore the following lines:
246 } elsif (/^(?:dis)similarity index/ ||
247 /^(?:old|new) mode/ ||
248 /^(?:deleted|new) file mode/ ||
249 /^(?:copy|rename) (?:from|to) / ||
250 /^(?:dis)?similarity index / ||
251 /^\\ No newline at end of file/ ||
252 /^Binary files .* differ/) {
258 warn "non-diff line: $_\n" if DEBUG && $_ ne '';
263 $tg->index_text(join("\n", @xnq), 1, 'XNQ');
264 $tg->increase_termpos;
267 sub index_body ($$$) {
268 my ($tg, $lines, $doc) = @_;
269 my $txt = join("\n", @$lines);
271 # does it look like a diff?
272 if ($txt =~ /^(?:diff|---|\+\+\+) /ms) {
274 index_diff($tg, $lines, $doc);
276 $tg->index_text($txt, 1, 'XNQ');
279 $tg->index_text($txt, 0, 'XQUOT');
281 $tg->increase_termpos;
286 # mime = Email::MIME object
287 my ($self, $mime, $bytes, $num, $oid, $mid0) = @_;
289 my $mids = mids($mime->header_obj);
290 my $skel = $self->{skeleton};
293 my $smsg = PublicInbox::SearchMsg->new($mime);
294 my $doc = $smsg->{doc};
295 my $subj = $smsg->subject;
298 $xpath = $self->subject_path($subj);
299 $xpath = id_compress($xpath);
302 my $lines = $mime->body_raw =~ tr!\n!\n!;
303 my @values = ($smsg->ds, $num, $bytes, $lines, $smsg->ts);
304 add_values($doc, \@values);
306 my $tg = $self->term_generator;
308 $tg->set_document($doc);
309 $tg->index_text($subj, 1, 'S') if $subj;
310 $tg->increase_termpos;
312 index_users($tg, $smsg);
314 msg_iter($mime, sub {
315 my ($part, $depth, @idx) = @{$_[0]};
316 my $ct = $part->content_type || 'text/plain';
317 my $fn = $part->filename;
318 if (defined $fn && $fn ne '') {
319 $tg->index_text($fn, 1, 'XFN');
322 return if $ct =~ m!\btext/x?html\b!i;
324 my $s = eval { $part->body_str };
326 if ($ct =~ m!\btext/plain\b!i) {
327 # Try to assume UTF-8 because Alpine
328 # seems to do wacky things and set
330 $part->charset_set('UTF-8');
331 $s = eval { $part->body_str };
332 $s = $part->body if $@;
335 defined $s or return;
338 my $body = $part->body;
339 my @lines = split(/\n/, $body);
340 while (defined(my $l = shift @lines)) {
342 index_body($tg, \@orig, $doc) if @orig;
345 index_body($tg, \@quot, 0) if @quot;
349 index_body($tg, \@quot, 0) if @quot;
350 index_body($tg, \@orig, $doc) if @orig;
353 # populates smsg->references for smsg->to_doc_data
354 my $refs = parse_references($smsg);
355 $mid0 = $mids->[0] unless defined $mid0; # v1 compatibility
356 my $data = $smsg->to_doc_data($oid, $mid0);
357 foreach my $mid (@$mids) {
358 $tg->index_text($mid, 1, 'XM');
360 $doc->set_data($data);
361 if (my $altid = $self->{-altid}) {
362 foreach my $alt (@$altid) {
363 my $pfx = $alt->{xprefix};
364 foreach my $mid (@$mids) {
365 my $id = $alt->mid2alt($mid);
366 next unless defined $id;
367 $doc->add_boolean_term($pfx . $id);
372 $self->delete_article($num) if defined $num; # for reindexing
374 push @values, $mids, $xpath, $data;
375 $skel->index_skeleton(\@values);
376 $doc->add_boolean_term('Q' . $_) foreach @$mids;
377 $doc->add_boolean_term('XNUM' . $num) if defined $num;
378 $doc_id = $self->{xdb}->add_document($doc);
380 $doc_id = link_and_save($self, $doc, $mids, $refs,
386 warn "failed to index message <".join('> <',@$mids).">: $@\n";
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->inc) {
400 push @ids, $head->get_docid;
407 my ($self, $mid) = @_;
408 my $db = $self->{xdb};
410 $mid = mid_clean($mid);
413 batch_do($self, 'Q' . $mid, sub {
415 $db->delete_document($_) for @$ids;
420 warn "failed to remove message <$mid>: $@\n";
422 warn "cannot remove non-existent <$mid>\n";
427 my ($self, $num) = @_;
429 batch_do($self, 'XNUM' . $num, sub {
431 $ndel += scalar @$ids;
432 $self->{xdb}->delete_document($_) for @$ids;
436 # MID is a hint in V2
438 my ($self, $oid, $mid) = @_;
439 my $db = $self->{xdb};
441 # XXX careful, we cannot use batch_do here since we conditionally
442 # delete documents based on other factors, so we cannot call
443 # find_doc_ids twice.
444 my ($head, $tail) = $self->find_doc_ids('Q' . $mid);
445 return if $head == $tail;
447 # there is only ONE element in @delete unless we
448 # have bugs in our v2writable deduplication check
450 for (; $head != $tail; $head->inc) {
451 my $docid = $head->get_docid;
452 my $doc = $db->get_document($docid);
453 my $smsg = PublicInbox::SearchMsg->wrap($doc, $mid);
455 push(@delete, $docid) if $smsg->{blob} eq $oid;
457 $db->delete_document($_) foreach @delete;
461 sub term_generator { # write-only
464 my $tg = $self->{term_generator};
467 $tg = Search::Xapian::TermGenerator->new;
468 $tg->set_stemmer($self->stemmer);
470 $self->{term_generator} = $tg;
473 # increments last_thread_id counter
474 # returns a 64-bit integer represented as a decimal string
477 my $db = $self->{xdb};
478 my $last_thread_id = int($db->get_metadata('last_thread_id') || 0);
480 $db->set_metadata('last_thread_id', ++$last_thread_id);
485 sub parse_references ($) {
487 my $mime = $smsg->{mime};
488 my $hdr = $mime->header_obj;
489 my $refs = references($hdr);
490 return $refs if scalar(@$refs) == 0;
492 # prevent circular references via References here:
493 my %mids = map { $_ => 1 } @{mids($hdr)};
495 foreach my $ref (@$refs) {
496 if (length($ref) > PublicInbox::MID::MAX_MID_SIZE) {
497 warn "References: <$ref> too long, ignoring\n";
503 $smsg->{references} = '<'.join('> <', @keep).'>' if @keep;
508 my ($self, $doc, $refs, $old_tid) = @_;
512 # first ref *should* be the thread root,
513 # but we can never trust clients to do the right thing
514 my $ref = shift @$refs;
515 $tid = resolve_mid_to_tid($self, $ref);
516 merge_threads($self, $tid, $old_tid) if defined $old_tid;
518 # the rest of the refs should point to this tid:
519 foreach $ref (@$refs) {
520 my $ptid = resolve_mid_to_tid($self, $ref);
521 merge_threads($self, $tid, $ptid);
524 $tid = defined $old_tid ? $old_tid : $self->next_thread_id;
526 $doc->add_boolean_term('G' . $tid);
531 my ($self, $doc, $mids, $refs, $num, $xpath) = @_;
532 my $db = $self->{xdb};
535 $doc->add_boolean_term('XNUM' . $num) if defined $num;
536 $doc->add_boolean_term('XPATH' . $xpath) if defined $xpath;
537 $doc->add_boolean_term('Q' . $_) foreach @$mids;
540 $self->{skel} and die "Should not have read-only skel here\n";;
541 foreach my $mid (@$mids) {
542 $self->each_smsg_by_mid($mid, sub {
544 my $type = $cur->type;
545 my $cur_tid = $cur->thread_id;
546 $old_tid = $cur_tid unless defined $old_tid;
547 if ($type eq 'mail') {
548 # do not break existing mail messages,
549 # just merge the threads
550 merge_threads($self, $old_tid, $cur_tid);
553 if ($type ne 'ghost') {
554 die "<$mid> has a bad type: $type\n";
556 my $tid = link_doc($self, $doc, $refs, $old_tid);
557 $old_tid = $tid unless defined $old_tid;
558 $doc_id = $cur->{doc_id};
559 $self->{xdb}->replace_document($doc_id, $doc);
565 my $id = '<'.join('> <', @$mids).'>';
566 warn "BUG: vivified multiple ($vivified) ghosts for $id\n";
568 # not really important, but we return any vivified ghost docid, here:
569 return $doc_id if defined $doc_id;
570 link_doc($self, $doc, $refs, $old_tid);
571 $self->{xdb}->add_document($doc);
574 sub index_git_blob_id {
575 my ($doc, $pfx, $objid) = @_;
577 my $len = length($objid);
578 for (my $len = length($objid); $len >= 7; ) {
579 $doc->add_term($pfx.$objid);
580 $objid = substr($objid, 0, --$len);
585 my ($self, $mime) = @_;
586 my $mid = eval { mid_clean(mid_mime($mime)) };
587 $self->remove_message($mid) if defined $mid;
591 my ($self, $mime) = @_;
592 my $mid = mid_clean(mid_mime($mime));
593 my $mm = $self->{mm};
594 my $num = $mm->mid_insert($mid);
595 return $num if defined $num;
597 # fallback to num_for since filters like RubyLang set the number
602 my ($self, $mime) = @_;
603 $self->{mm}->mid_delete(mid_clean(mid_mime($mime)));
607 my ($self, $mime, $bytes, $blob) = @_;
608 my $num = $self->{mm}->num_for(mid_clean(mid_mime($mime)));
609 add_message($self, $mime, $bytes, $num, $blob);
613 my ($self, $mime) = @_;
614 $self->{mm}->mid_delete(mid_clean(mid_mime($mime)));
615 unindex_blob($self, $mime);
619 my ($self, $mime, $bytes, $blob) = @_;
620 my $num = index_mm($self, $mime);
621 add_message($self, $mime, $bytes, $num, $blob);
625 my ($self, $mime) = @_;
626 unindex_blob($self, $mime);
627 unindex_mm($self, $mime);
631 my ($git, $blob, $sizeref) = @_;
633 my $str = $git->cat_file($blob, $sizeref);
634 # fixup bugs from import:
635 $$str =~ s/\A[\r\n]*From [^\r\n]*\r?\n//s;
636 PublicInbox::MIME->new($str);
642 my ($self, $opts) = @_;
643 with_umask($self, sub { $self->_index_sync($opts) });
646 sub batch_adjust ($$$$) {
647 my ($max, $bytes, $batch_cb, $latest) = @_;
651 $batch_cb->($latest, 1);
657 my ($self, $log, $add_cb, $del_cb, $batch_cb) = @_;
658 my $hex = '[a-f0-9]';
659 my $h40 = $hex .'{40}';
660 my $addmsg = qr!^:000000 100644 \S+ ($h40) A\t${hex}{2}/${hex}{38}$!;
661 my $delmsg = qr!^:100644 000000 ($h40) \S+ D\t${hex}{2}/${hex}{38}$!;
662 my $git = $self->{git};
665 my $max = BATCH_BYTES;
668 while (defined($line = <$log>)) {
669 if ($line =~ /$addmsg/o) {
671 my $mime = do_cat_mail($git, $blob, \$bytes) or next;
672 batch_adjust(\$max, $bytes, $batch_cb, $latest);
673 $add_cb->($self, $mime, $bytes, $blob);
674 } elsif ($line =~ /$delmsg/o) {
676 my $mime = do_cat_mail($git, $blob, \$bytes) or next;
677 batch_adjust(\$max, $bytes, $batch_cb, $latest);
678 $del_cb->($self, $mime);
679 } elsif ($line =~ /^commit ($h40)/o) {
683 $batch_cb->($latest, 0);
688 $self->{mm} ||= eval {
689 require PublicInbox::Msgmap;
690 my $msgmap_path = $self->{msgmap_path};
691 if (defined $msgmap_path) { # v2
692 PublicInbox::Msgmap->new_file($msgmap_path, 1);
694 PublicInbox::Msgmap->new($self->{mainrepo}, 1);
700 my ($self, $range) = @_;
701 $self->{git}->popen(qw/log --reverse --no-notes --no-color
702 --raw -r --no-abbrev/, $range);
705 # indexes all unindexed messages
707 my ($self, $opts) = @_;
708 my $tip = $opts->{ref} || 'HEAD';
709 my $reindex = $opts->{reindex};
710 my ($mkey, $last_commit, $lx, $xlog);
711 $self->{git}->batch_prepare;
712 my $xdb = _xdb_acquire($self);
713 $xdb->begin_transaction;
716 $mkey = 'last_commit';
717 $last_commit = $xdb->get_metadata('last_commit');
721 $mkey = undef if $last_commit ne '';
723 $xdb->cancel_transaction;
724 $xdb = _xdb_release($self);
726 # ensure we leak no FDs to "git log"
727 my $range = $lx eq '' ? $tip : "$lx..$tip";
728 $xlog = _git_log($self, $range);
730 $xdb = _xdb_acquire($self);
731 $xdb->begin_transaction;
732 } while ($xdb->get_metadata('last_commit') ne $last_commit);
734 my $mm = _msgmap_init($self);
735 my $dbh = $mm->{dbh} if $mm;
738 my ($commit, $more) = @_;
740 $mm->last_commit($commit) if $commit;
744 $xdb->set_metadata($mkey, $commit) if $mkey && $commit;
745 $xdb->commit_transaction;
746 $xdb = _xdb_release($self);
748 # let another process do some work... <
751 $xdb = _xdb_acquire($self);
752 $xdb->begin_transaction;
754 $dbh->begin_work if $dbh;
760 my $lm = $mm->last_commit || '';
762 # Common case is the indexes are synced,
763 # we only need to run git-log once:
764 rlog($self, $xlog, *index_both, *unindex_both, $cb);
766 # Uncommon case, msgmap and xapian are out-of-sync
767 # do not care for performance (but git is fast :>)
768 # This happens if we have to reindex Xapian since
769 # msgmap is a frozen format and our Xapian format
771 my $r = $lm eq '' ? $tip : "$lm..$tip";
773 # first, ensure msgmap is up-to-date:
774 my $mkey_prev = $mkey;
775 $mkey = undef; # ignore xapian, for now
776 my $mlog = _git_log($self, $r);
778 rlog($self, $mlog, *index_mm, *unindex_mm, $cb);
779 $mm_only = $mlog = undef;
781 # now deal with Xapian
784 rlog($self, $xlog, *index_mm2, *unindex_mm2, $cb);
787 # user didn't install DBD::SQLite and DBI
788 rlog($self, $xlog, *add_message, *unindex_blob, $cb);
792 # this will create a ghost as necessary
793 sub resolve_mid_to_tid {
794 my ($self, $mid) = @_;
796 $self->each_smsg_by_mid($mid, sub {
798 my $cur_tid = $smsg->thread_id;
800 merge_threads($self, $tid, $cur_tid);
802 $tid = $smsg->thread_id;
806 return $tid if defined $tid;
808 $self->create_ghost($mid)->thread_id;
812 my ($self, $mid) = @_;
814 my $tid = $self->next_thread_id;
815 my $doc = Search::Xapian::Document->new;
816 $doc->add_boolean_term('Q' . $mid);
817 $doc->add_boolean_term('G' . $tid);
818 $doc->add_boolean_term('T' . 'ghost');
820 my $smsg = PublicInbox::SearchMsg->wrap($doc, $mid);
821 $self->{xdb}->add_document($doc);
827 my ($self, $winner_tid, $loser_tid) = @_;
828 return if $winner_tid == $loser_tid;
829 my $db = $self->{xdb};
830 batch_do($self, 'G' . $loser_tid, sub {
832 foreach my $docid (@$ids) {
833 my $doc = $db->get_document($docid);
834 $doc->remove_term('G' . $loser_tid);
835 $doc->add_boolean_term('G' . $winner_tid);
836 $db->replace_document($docid, $doc);
841 sub _read_git_config_perm {
843 my @cmd = qw(config);
844 if ($self->{version} == 2) {
845 push @cmd, "--file=$self->{mainrepo}/all.git/config";
847 my $fh = $self->{git}->popen(@cmd, 'core.sharedRepository');
850 chomp $perm if defined $perm;
854 sub _git_config_perm {
856 my $perm = scalar @_ ? $_[0] : _read_git_config_perm($self);
857 return PERM_GROUP if (!defined($perm) || $perm eq '');
858 return PERM_UMASK if ($perm eq 'umask');
859 return PERM_GROUP if ($perm eq 'group');
860 if ($perm =~ /\A(?:all|world|everybody)\z/) {
861 return PERM_EVERYBODY;
863 return PERM_GROUP if ($perm =~ /\A(?:true|yes|on|1)\z/);
864 return PERM_UMASK if ($perm =~ /\A(?:false|no|off|0)\z/);
867 return PERM_UMASK if ($i == PERM_UMASK);
868 return PERM_GROUP if ($i == OLD_PERM_GROUP);
869 return PERM_EVERYBODY if ($i == OLD_PERM_EVERYBODY);
871 if (($i & 0600) != 0600) {
872 die "core.sharedRepository mode invalid: ".
873 sprintf('%.3o', $i) . "\nOwner must have permissions\n";
879 my ($perm) = @_; # _git_config_perm return value
881 return umask if $rv == 0;
883 # set +x bit if +r or +w were set
884 $rv |= 0100 if ($rv & 0600);
885 $rv |= 0010 if ($rv & 0060);
886 $rv |= 0001 if ($rv & 0006);
891 my ($self, $cb) = @_;
892 my $old = umask $self->{umask};
893 my $rv = eval { $cb->() };
901 # order matters for unlocking
902 $_[0]->{xdb} = undef;
903 $_[0]->{lockfh} = undef;
906 # remote_* subs are only used by SearchIdxPart and SearchIdxSkeleton
909 if (my $w = $self->{w}) {
910 print $w "commit\n" or die "failed to write commit: $!";
912 $self->commit_txn_lazy;
913 if (my $skel = $self->{skeleton}) {
914 $skel->commit_txn_lazy;
921 if (my $w = delete $self->{w}) {
922 my $pid = delete $self->{pid} or die "no process to wait on\n";
923 print $w "close\n" or die "failed to write to pid:$pid: $!\n";
924 close $w or die "failed to close pipe for pid:$pid: $!\n";
925 waitpid($pid, 0) == $pid or die "remote process did not finish";
926 $? == 0 or die ref($self)." pid:$pid exited with: $?";
928 die "transaction in progress $self\n" if $self->{txn};
929 $self->_xdb_release if $self->{xdb};
934 my ($self, $oid, $mid) = @_;
935 if (my $w = $self->{w}) {
936 # triggers remove_by_oid in partition or skeleton
937 print $w "D $oid $mid\n" or die "failed to write remove $!";
939 $self->begin_txn_lazy;
940 $self->remove_by_oid($oid, $mid);
946 return if $self->{txn};
947 my $xdb = $self->{xdb} || $self->_xdb_acquire;
948 $xdb->begin_transaction;
952 sub commit_txn_lazy {
954 delete $self->{txn} or return;
955 $self->{xdb}->commit_transaction;
960 die "$$ $0 xdb not released\n" if $self->{xdb};
961 die "$$ $0 still in transaction\n" if $self->{txn};