-# Copyright (C) 2020 all contributors <meta@public-inbox.org>
+# Copyright (C) 2020-2021 all contributors <meta@public-inbox.org>
# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
+# read-only counterpart for PublicInbox::LeiStore
package PublicInbox::LeiSearch;
use strict;
use v5.10.1;
use parent qw(PublicInbox::ExtSearch);
-use PublicInbox::Search;
+use PublicInbox::Search qw(xap_terms);
+use PublicInbox::ContentHash qw(content_digest content_hash);
+use PublicInbox::MID qw(mids mids_in);
-sub combined_docid ($$) {
+# get combined docid from over.num:
+# (not generic Xapian, only works with our sharding scheme)
+sub num2docid ($$) {
my ($self, $num) = @_;
- ($num - 1) * $self->{nshard} + 1;
+ my $nshard = $self->{nshard};
+ ($num - 1) * $nshard + $num % $nshard + 1;
}
sub msg_keywords {
my ($self, $num) = @_; # num_or_mitem
my $xdb = $self->xdb; # set {nshard};
- my $docid = ref($num) ? $num->get_docid : do {
- # get combined docid from over.num:
- # (not generic Xapian, only works with our sharding scheme)
- my $nshard = $self->{nshard};
- ($num - 1) * $nshard + $num % $nshard + 1;
- };
- my %kw;
- eval {
- my $end = $xdb->termlist_end($docid);
- my $cur = $xdb->termlist_begin($docid);
- for (; $cur != $end; $cur++) {
- $cur->skip_to('K');
- last if $cur == $end;
- my $kw = $cur->get_termname;
- $kw =~ s/\AK//s and $kw{$kw} = undef;
- }
- };
+ my $docid = ref($num) ? $num->get_docid : num2docid($self, $num);
+ my $kw = xap_terms('K', $xdb, $docid);
warn "E: #$docid ($num): $@\n" if $@;
- wantarray ? sort(keys(%kw)) : \%kw;
+ wantarray ? sort(keys(%$kw)) : $kw;
+}
+
+# when a message has no Message-IDs at all, this is needed for
+# unsent Draft messages, at least
+sub content_key ($) {
+ my ($eml) = @_;
+ my $dig = content_digest($eml);
+ my $chash = $dig->clone->digest;
+ my $mids = mids_in($eml,
+ qw(Message-ID X-Alt-Message-ID Resent-Message-ID));
+ unless (@$mids) {
+ $eml->{-lei_fake_mid} = $mids->[0] =
+ PublicInbox::Import::digest2mid($dig, $eml);
+ }
+ ($chash, $mids);
+}
+
+sub _cmp_1st { # git->cat_async callback
+ my ($bref, $oid, $type, $size, $cmp) = @_; # cmp: [chash, found, smsg]
+ return if defined($cmp->[1]->[0]); # $found->[0]
+ if (content_hash(PublicInbox::Eml->new($bref)) eq $cmp->[0]) {
+ push @{$cmp->[1]}, $cmp->[2]->{num};
+ }
+}
+
+# returns true if $eml is indexed by lei/store and keywords don't match
+sub kw_changed {
+ my ($self, $eml, $new_kw_sorted) = @_;
+ my ($chash, $mids) = content_key($eml);
+ my $over = $self->over;
+ my $git = $self->git;
+ my $found = [];
+ for my $mid (@$mids) {
+ my ($id, $prev);
+ while (my $cur = $over->next_by_mid($mid, \$id, \$prev)) {
+ $git->cat_async($cur->{blob}, \&_cmp_1st,
+ [ $chash, $found, $cur ]);
+ last if scalar(@$found);
+ }
+ }
+ $git->cat_async_wait;
+ my $num = $found->[0] // return;
+ my @cur_kw = msg_keywords($self, $num);
+ join("\0", @$new_kw_sorted) eq join("\0", @cur_kw) ? 0 : 1;
}
1;