Add --actions flag to watch command

It's often useful to see the pipeline actions when watching a pipeline that was
enqueued by a higher level workflow engine.

pipelines/internal/commands/watch/watch.go

@@ -30,6 +30,7 @@ import (
 var (
 	flags = flag.NewFlagSet("", flag.ExitOnError)
 
+	actions = flags.Bool("actions", false, "show action details")
 	details = flags.Bool("details", false, "show event details")
 )
 
@@ -68,6 +69,15 @@ func watch(ctx context.Context, service *genomics.Service, name string) (interfa
 			return nil, fmt.Errorf("parsing metadata: %v", err)
 		}
 
+		if *actions {
+			*actions = false
+			encoded, err := json.MarshalIndent(metadata.Pipeline.Actions, "", "  ")
+			if err != nil {
+				return nil, fmt.Errorf("encoding actions: %v", err)
+			}
+			fmt.Printf("%s\n", encoded)
+		}
+
 		if len(events) != len(metadata.Events) {
 			for i := len(metadata.Events) - len(events) - 1; i >= 0; i-- {
 				timestamp, _ := time.Parse(time.RFC3339Nano, metadata.Events[i].Timestamp)