option is string type

slapos/recipe/download.py

@@ -43,6 +43,7 @@ class Recipe(object):
     self._name = name
     mode = options.get('mode')
     log = logging.getLogger(name)
+    self._shared = shared = (options.get('shared', '').lower() == 'true')
     if mode is not None:
       mode = int(mode, 8)
     self._mode = mode
@@ -52,8 +53,6 @@ class Recipe(object):
 
     destination = options.get('destination', None)
     if destination is None:
-      shared = options.get('shared')
-      self._shared = shared
       if shared:
         shared_part = buildout['buildout'].get('shared-part', None)
         if not shared_part:

slapos/recipe/downloadunpacked.py

@@ -48,7 +48,7 @@ class Recipe:
           'exclusive.')
     self.parts = None
     self.destination = self.options.get('destination', None)
-    self.shared = shared = options.get('shared', '')
+    self.shared = shared = is_true(options.get('shared', '').lower())
     if self.destination is None:
       if shared:
         shared_part = buildout['buildout'].get('shared-part', None)