%INC can hold undef. This can be hit on a Linux machine missing
Linux::Inotify2. Loading PublicInbox::KQNotify is attempted and
PublicInbox/KQNotify.pm always exists, causing the `undef' entry
in %INC when it fails to load IO::KQueue.
$ perl -MData::Dumper -I lib \
-E 'eval { require PublicInbox::KQNotify }; say Dumper(\%INC)'
my $dig = Digest::SHA->new(1);
push @out, "public-inbox blob OIDs of loaded features:\n";
for my $m (grep(m{^PublicInbox/}, sort keys %INC)) {
- my $f = $INC{$m};
+ my $f = $INC{$m} // next; # lazy require failed (missing dep)
$dig->add('blob '.(-s $f)."\0");
$dig->addfile($f);
push @out, ' '.$dig->hexdigest.' '.$m."\n";