nntp: resolve inboxes immediately on group listings

[public-inbox.git] / lib / PublicInbox / NNTPD.pm

diff --git a/lib/PublicInbox/NNTPD.pm b/lib/PublicInbox/NNTPD.pm
index 953228d0287823ea691e461fb5fae5b86f8c6e99..6e79f0be697fc909ac49ad301b54a4447eebfdc6 100644 (file)
--- a/lib/PublicInbox/NNTPD.pm
+++ b/lib/PublicInbox/NNTPD.pm
@@ -1,14 +1,15 @@
-# Copyright (C) 2016-2020 all contributors <meta@public-inbox.org>
+# Copyright (C) all contributors <meta@public-inbox.org>
 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
 
 # represents an NNTPD (currently a singleton),
 # see script/public-inbox-nntpd for how it is used
 package PublicInbox::NNTPD;
 use strict;
-use warnings;
+use v5.10.1;
 use Sys::Hostname;
 use PublicInbox::Config;
 use PublicInbox::InboxIdle;
+use PublicInbox::NNTPdeflate; # loads PublicInbox::NNTP
 
 sub new {
        my ($class) = @_;
@@ -36,10 +37,12 @@ sub refresh_groups {
        my ($self, $sig) = @_;
        my $pi_cfg = $sig ? PublicInbox::Config->new : $self->{pi_cfg};
        my $groups = $pi_cfg->{-by_newsgroup}; # filled during each_inbox
+       my $cache = eval { $pi_cfg->ALL->misc->nntpd_cache_load } // {};
        $pi_cfg->each_inbox(sub {
                my ($ibx) = @_;
-               my $ngname = $ibx->{newsgroup};
-               if (defined($ngname) && $ibx->nntp_usable) {
+               my $ngname = $ibx->{newsgroup} // return;
+               my $ce = $cache->{$ngname};
+               if (($ce and (%$ibx = (%$ibx, %$ce))) || $ibx->nntp_usable) {
                        # only valid if msgmap and over works
                        # preload to avoid fragmentation:
                        $ibx->description;
@@ -52,7 +55,7 @@ sub refresh_groups {
                        # run in the same process someday.
                }
        });
-       $self->{groupnames} = [ sort(keys %$groups) ];
+       @{$self->{groupnames}} = sort(keys %$groups);
        # this will destroy old groups that got deleted
        $self->{pi_cfg} = $pi_cfg;
 }