-# 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>
# bidirectional Message-ID <-> Article Number mapping for the NNTP
# numbers for NNTP and allows prefix lookups for partial Message-IDs
# in case URLs get truncated from copy-n-paste errors by users.
#
-# This is maintained by ::SearchIdx
+# This is maintained by ::SearchIdx (v1) and ::V2Writable (v2)
package PublicInbox::Msgmap;
use strict;
+use v5.10.1;
use DBI;
use DBD::SQLite;
use PublicInbox::Over;
my $self = bless { filename => $f }, $class;
my $dbh = $self->{dbh} = PublicInbox::Over::dbh_new($self, $rw);
if ($rw) {
- # TRUNCATE reduces I/O compared to the default (DELETE)
- $dbh->do('PRAGMA journal_mode = TRUNCATE');
-
$dbh->begin_work;
create_tables($dbh);
$self->created_at(time) unless $self->created_at;
- my $max = $self->max // 0;
- $self->num_highwater($max);
+ $self->num_highwater(max($self));
$dbh->commit;
}
$self;
sub tmp_clone {
my ($self, $dir) = @_;
require File::Temp;
- my $tmp = "mm_tmp-$$-XXXXXX";
+ my $tmp = "mm_tmp-$$-XXXX";
my ($fh, $fn) = File::Temp::tempfile($tmp, EXLOCK => 0, DIR => $dir);
PublicInbox::Spawn::nodatacow_fd(fileno($fh));
$self->{dbh}->sqlite_backup_to_file($fn);
$self->meta_accessor("last_xap$version-$i", $commit);
}
+# this is the UIDVALIDITY for IMAP (cf. RFC 3501 sec 2.3.1.1. item 3)
sub created_at {
my ($self, $second) = @_;
$self->meta_accessor('created_at', $second);
my $sth = $_[0]->{dbh}->prepare_cached('SELECT MAX(num) FROM msgmap',
undef, 1);
$sth->execute;
- $sth->fetchrow_array;
+ $sth->fetchrow_array // 0;
}
sub minmax {
my $sth = $_[0]->{dbh}->prepare_cached('SELECT MIN(num) FROM msgmap',
undef, 1);
$sth->execute;
- ($sth->fetchrow_array, max($_[0]));
+ ($sth->fetchrow_array // 0, max($_[0]));
}
sub mid_delete {
}
-# used by NNTP.pm
-sub ids_after {
- my ($self, $num) = @_;
- my $ids = $self->{dbh}->selectcol_arrayref(<<'', undef, $$num);
-SELECT num FROM msgmap WHERE num > ?
-ORDER BY num ASC LIMIT 1000
-
- $$num = $ids->[-1] if @$ids;
- $ids;
-}
-
sub msg_range {
my ($self, $beg, $end, $cols) = @_;
$cols //= 'num,mid';