Add a hostmaster migrate command

migrate.hostmaster.inc

+<?php
+
+/**
+ * @file manual site migrate system
+ */
+
+function drush_provision_hostmaster_migrate_validate($site, $platform) {
+  // verify the target platform:
+  $data = drush_get_merged_options(); // XXX: necessary because the remote
+                                      // platform may not have been
+                                      // initialised by the frontend (this
+                                      // should be checked instead)
+  $data['root'] = $platform;
+  $data['r'] = $platform;
+  drush_backend_invoke('provision verify', $data);
+  // verify the current platform
+  drush_backend_invoke('provision verify', array('root' => drush_get_option(array('r', 'root'), drush_locate_root())));
+  // verify the site prior to migration
+  drush_backend_invoke('provision verify', array($site));
+}
+
+function drush_provision_pre_hostmaster_migrate($site, $platform) {
+  drush_backend_invoke('hostmaster park', array($site, 'uri' => $site));
+}
+
+function drush_provision_hostmaster_migrate($site, $platform) { 
+  drush_backend_invoke('provision clone', array($site, $site, $platform));
+}
+
+function drush_provision_hostmaster_migrate_rollback($site, $platform) {
+  drush_backend_invoke('provision delete ', array($site, 'root' => $platform));
+}
+
+function drush_provision_post_hostmaster_migrate($site, $platform) {
+  drush_backend_invoke('hostmaster unpark', array($site, 'uri' => $site, 'root' => $platform));
+  if (!drush_get_error()) {
+    drush_backend_invoke('provision delete', array($site));
+    drush_backend_invoke('provision verify', array($site, 'root' => $platform, 'publish_path' => $platform));
+  }
+}

provision.drush.inc

@@ -121,6 +121,15 @@ function provision_drush_command() {
     'bootstrap' => DRUSH_BOOTSTRAP_DRUPAL_ROOT
   );
 
+  $items['hostmaster migrate'] = array(
+    'description' => dt('Migrate an instance of the Hostmaster front end to a new platform'),
+    'bootstrap' => DRUSH_BOOTSTRAP_DRUPAL_ROOT,
+    'arguments' => array(
+      'example.com' => dt('The name of the site to migrate'),
+      '/path/to/platform' => dt('The platform to migrate the site to.')
+    ),
+  );
+
  
   return $items;
 }