Added upgrade step executed before schmema is upgraded

Class PreSchemaUpdate is executed before ldap schema update

This is required by ticket: https://fedorahosted.org/freeipa/ticket/3210

Reviewed-By: Martin Kosek <mkosek@redhat.com>

1 files changed, 14 insertions, 1 deletions

diff --git a/ipaserver/install/ldapupdate.py b/ipaserver/install/ldapupdate.py
index ecdf8e6e1..b6c6d2b90 100644
--- a/ipaserver/install/ldapupdate.py
+++ b/ipaserver/install/ldapupdate.py
@@ -42,7 +42,8 @@ from ipalib import api
 from ipaplatform.paths import paths
 from ipapython.dn import DN
 from ipapython.ipa_log_manager import *
-from ipaserver.install.plugins import PRE_UPDATE, POST_UPDATE
+from ipaserver.install.plugins import (PRE_UPDATE, POST_UPDATE,
+                                       PRE_SCHEMA_UPDATE)
 from ipaserver.plugins import ldap2
 
 UPDATES_DIR=paths.UPDATES_DIR
@@ -794,6 +795,18 @@ class LDAPUpdate:
         for dn, update in sorted_updates:
             self._delete_record(update)
 
+    def pre_schema_update(self, ordered=False):
+        """Execute the update before the LDPA schema is updated.
+        """
+        if self.plugins:
+            self.info('PRE_SCHEMA_UPDATE')
+            all_updates = {}
+            updates = api.Backend.updateclient.update(PRE_SCHEMA_UPDATE, self.dm_password, self.ldapi, self.live_run)
+            self.merge_updates(all_updates, updates)
+            self._run_updates(all_updates)
+
+        return self.modified
+
     def update(self, files, ordered=False):
         """Execute the update. files is a list of the update files to use.