Added preserve options to rule generator yaml format. You need to

enlist the target document in the preserve line to withc on the
preserve option of the generator for the document.

1 files changed, 3 insertions, 1 deletions

diff --git a/qface/generator.py b/qface/generator.py
index b3a546a..ac1baeb 100644
--- a/qface/generator.py
+++ b/qface/generator.py
@@ -193,8 +193,10 @@ class RuleGenerator(Generator):
         self.context.update(context)
         self.context.update(rule.get('context', {}))
         self.destination = rule.get('destination', None)
+        preserved = rule.get('preserve', [])
         for target, source in rule.get('documents', {}).items():
-            self.write(target, source)
+            preserve = target in preserved
+            self.write(target, source, preserve=preserve)
 
 
 class FileSystem(object):