hydra-notify: listen for build_queued events

src/lib/Hydra/Event.pm

@@ -3,10 +3,12 @@ package Hydra::Event;
 use strict;
 use warnings;
 use Hydra::Event::BuildFinished;
+use Hydra::Event::BuildQueued;
 use Hydra::Event::BuildStarted;
 use Hydra::Event::StepFinished;
 
 my %channels_to_events = (
+  build_queued => \&Hydra::Event::BuildQueued::parse,
   build_started => \&Hydra::Event::BuildStarted::parse,
   step_finished => \&Hydra::Event::StepFinished::parse,
   build_finished => \&Hydra::Event::BuildFinished::parse,

src/lib/Hydra/Event/BuildQueued.pm

@@ -0,0 +1,47 @@
+package Hydra::Event::BuildQueued;
+
+use strict;
+use warnings;
+
+sub parse :prototype(@) {
+    unless (@_ == 1) {
+        die "build_queued: payload takes only one argument, but ", scalar(@_), " were given";
+    }
+
+    my ($build_id) = @_;
+
+    unless ($build_id =~ /^\d+$/) {
+        die "build_queued: payload argument should be an integer, but '", $build_id, "' was given"
+    }
+
+    return Hydra::Event::BuildQueued->new(int($build_id));
+}
+
+sub new {
+    my ($self, $id) = @_;
+    return bless {
+        "build_id" => $id,
+        "build" => undef
+    }, $self;
+}
+
+sub load {
+    my ($self, $db) = @_;
+
+    if (!defined($self->{"build"})) {
+        $self->{"build"} = $db->resultset('Builds')->find($self->{"build_id"})
+            or die "build $self->{'build_id'} does not exist\n";
+    }
+}
+
+sub execute {
+    my ($self, $db, $plugin) = @_;
+
+    $self->load($db);
+
+    $plugin->buildQueued($self->{"build"});
+
+    return 1;
+}
+
+1;

src/script/hydra-notify

@@ -93,6 +93,7 @@ my $task_dispatcher = Hydra::TaskDispatcher->new(
 my $dbh = $db->storage->dbh;
 
 my $listener = Hydra::PostgresListener->new($dbh);
+$listener->subscribe("build_queued");
 $listener->subscribe("build_started");
 $listener->subscribe("build_finished");
 $listener->subscribe("step_finished");