Rules: New options replace_name to replace %{name} in attributes

If you use the regex feature of Rules/Defaults you may need the real name
of the matched entry in an attribute (for example home of POSIXUser).
You can now enable replace_name for rules or defaults and %{name} will be
replaces in the attribues of the Element before adding them to the target
entry.

This allows you to write something like that in Defaults to assing a default
home directory somewhere else to all users with unset home:

    <POSIXUser name='.*' home='/somewhere/%{name}'/>

1 files changed, 14 insertions, 0 deletions

diff --git a/src/lib/Bcfg2/Server/Plugin/helpers.py b/src/lib/Bcfg2/Server/Plugin/helpers.py
index 3b62a3217..6b521dfd6 100644
--- a/src/lib/Bcfg2/Server/Plugin/helpers.py
+++ b/src/lib/Bcfg2/Server/Plugin/helpers.py
@@ -1064,6 +1064,20 @@ class PrioDir(Plugin, Generator, XMLDirectoryBacked):
                     data = candidate
                     break
 
+        self._apply(entry, data)
+
+    def _apply(self, entry, data):
+        """ Apply all available values from data onto entry. This
+        sets the available attributes (for all attribues unset in
+        the entry), adds all children and copies the text from data
+        to entry.
+
+        :param entry: The entry to apply the changes
+        :type entry: lxml.etree._Element
+        :param data: The entry to get the data from
+        :type data: lxml.etree._Element
+        """
+
         if data.text is not None and data.text.strip() != '':
             entry.text = data.text
         for item in data.getchildren():