allow manifest to return env for usage from external

Signed-off-by: Nico Schottelius <nico@brief.schottelius.org>

cdist/core/manifest.py

@@ -78,21 +78,23 @@ class Manifest(object):
             self.env.update({'__cdist_debug': "yes" })
 
 
-    def run_initial_manifest(self, script):
+    def env_initial_manifest(self, script):
         env = os.environ.copy()
         env.update(self.env)
         env['__manifest'] = self.local.manifest_path
         env['__cdist_manifest'] = script
+
+        return env
+
+    def run_initial_manifest(self, script):
         self.log.info("Running initial manifest " + self.local.manifest_path)
 
         if not os.path.isfile(self.local.manifest_path):
             raise cdist.Error("Initial manifest is missing")
 
-        self.local.run_script(script, env=env)
+        self.local.run_script(script, env=self.env_initial_manifest(script))
 
-    def run_type_manifest(self, cdist_object):
-        script = os.path.join(self.local.type_path, cdist_object.cdist_type.manifest_path)
-        if os.path.isfile(script):
+    def env_type_manifest(self, cdist_object):
         env = os.environ.copy()
         env.update(self.env)
         env.update({
@@ -103,4 +105,10 @@ class Manifest(object):
             '__type': cdist_object.cdist_type.absolute_path,
             '__cdist_manifest': script,
         })
-            self.local.run_script(script, env=env)
+
+        return env
+
+    def run_type_manifest(self, cdist_object):
+        script = os.path.join(self.local.type_path, cdist_object.cdist_type.manifest_path)
+        if os.path.isfile(script):
+           self.local.run_script(script, env=self.env_type_manifest(cdist_object))