can now install as well as reinstall

islandora.drush.inc

@@ -176,11 +176,11 @@ function drush_islandora_solution_pack_install_content_models() {
     $info = islandora_solution_packs_get_required_objects($module);
     $objects_to_add = array();
     foreach ($info['objects'] as $key => $candidate) {
-      $object = islandora_object_load($candidate);
-      if (in_array('fedora-system:ContentModel-3.0', $object->models)) {
+      if (in_array('fedora-system:ContentModel-3.0', $candidate->models)) {
         $objects_to_add[] = $candidate;
       }
     }
+    if (count($objects_to_add) > 0) {
       foreach ($objects_to_add as $object_to_add) {
         $old_object = islandora_object_load($object_to_add->id);
         if ($old_object) {
@@ -193,7 +193,8 @@ function drush_islandora_solution_pack_install_content_models() {
         $new_object = islandora_add_object($object_to_add);
         $verb = $deleted ? dt("Replaced") : dt("Added");
         if ($new_object) {
-        drush_log("$verb " . $object_to_add->id . " - " . $object_to_add->label);
+          drush_print("$verb " . $object_to_add->id . " - " . $object_to_add->label);
+        }
       }
     }
   }