Move log compression to a plugin

src/lib/Hydra/Plugin/CompressLog.pm

@@ -0,0 +1,19 @@
+package Hydra::Plugin::CompressLog;
+
+use strict;
+use utf8;
+use parent 'Hydra::Plugin';
+use Hydra::Helper::CatalystUtils;
+
+sub stepFinished {
+    my ($self, $step, $logPath) = @_;
+
+    my $doCompress = $self->{config}->{'compress_build_logs'} // "1";
+
+    if ($doCompress eq "1" && -e $logPath) {
+        print STDERR "compressing ‘$logPath’...\n";
+        system("bzip2", "--force", $logPath);
+    }
+}
+
+1;