[enh] Manual migration if not weak password

locales/en.json

@@ -287,6 +287,7 @@
     "migration_0005_postgresql_94_not_installed": "Postgresql was not installed on your system. Nothing to do!",
     "migration_0005_postgresql_96_not_installed": "Postgresql 9.4 has been found to be installed, but not postgresql 9.6 !? Something weird might have happened on your system :( ...",
     "migration_0005_not_enough_space": "Not enough space is available in {path} to run the migration right now :(.",
+    "migration_0006_root_admin_sync_warning": "Yunohost now expect admin and root passwords to be synchronized. By running this migration, your root password is going to be replaced by your root password.",
     "migrations_backward": "Migrating backward.",
     "migrations_bad_value_for_target": "Invalid number for target argument, available migrations numbers are 0 or {}",
     "migrations_cant_reach_migration_file": "Can't access migrations files at path %s",

src/yunohost/data_migrations/0006_migrate_pwd.py

@@ -21,14 +21,26 @@ class MyMigration(Migration):
 
     def migrate(self):
 
-        if self._is_root_pwd_listed(SMALL_PWD_LIST):
-            new_hash = self._get_admin_hash()
-            self._replace_root_hash(new_hash)
+        new_hash = self._get_admin_hash()
+        self._replace_root_hash(new_hash)
 
     def backward(self):
-
         pass
 
+    @property
+    def mode(self):
+        if self._is_root_pwd_listed(SMALL_PWD_LIST):
+            return "auto"
+
+        return "manual"
+
+    @property
+    def disclaimer(self):
+        if self._is_root_pwd_listed(SMALL_PWD_LIST):
+            return None
+
+        return m18n.n("migration_0006_root_admin_sync_warning")
+
     def _get_admin_hash(self):
         """
         Ask for admin hash the ldap db