From: Damyan Ivanov <dmn@debian.org>
Date: Tue, 16 Nov 2021 06:02:29 +0000 (+0000)
Subject: do not crash when the playlist is cleared
X-Git-Url: https://git.ktnx.net/?p=mpd-feeder.git;a=commitdiff_plain;h=02b8ebf94e41430d2c90b39e3348fc647522f697

do not crash when the playlist is cleared

the 'playlist' idle event returns no result in this case which lead to
an attempt to dereference undefined value
---

diff --git a/lib/App/MPD/Feeder.pm b/lib/App/MPD/Feeder.pm
index 66f3ce1..ed5d276 100644
--- a/lib/App/MPD/Feeder.pm
+++ b/lib/App/MPD/Feeder.pm
@@ -174,7 +174,7 @@ use constant DEFAULT_CONFIG_FILE => '/etc/mpd-feeder/mpd-feeder.conf';
             $self->connect_mpd;
             $mpd->send('playlist')->on_done(
                 sub {
-                    my $present = scalar @{ $_[0] };
+                    my $present = scalar @{ $_[0] // [] };
 
                     $log->notice( "Playlist contains $present songs. Wanted: "
                             . $opt->target_queue_length );