Optional hooks for before and after the rendering loop.

django_medusa/management/commands/staticsitegen.py

@@ -1,14 +1,19 @@
-from django.core.management.base import BaseCommand, CommandError
+from django.core.management.base import BaseCommand
+from django_medusa.renderers import StaticSiteRenderer
 from django_medusa.utils import get_static_renderers
 
+
 class Command(BaseCommand):
     can_import_settings = True
 
     help = 'Looks for \'renderers.py\' in each INSTALLED_APP, which defines '\
            'a class for processing one or more URL paths into static files.'
 
     def handle(self, *args, **options):
+        StaticSiteRenderer.initialize_output()
+
         for Renderer in get_static_renderers():
             r = Renderer()
             r.generate()
 
+        StaticSiteRenderer.finalize_output()

django_medusa/renderers/base.py

@@ -23,6 +23,31 @@ class BaseStaticSiteRenderer(object):
     through the Django testclient.
     """
 
+    @classmethod
+    def initialize_output(cls):
+        """
+        Things that should be done only once to the output directory BEFORE
+        rendering occurs (i.e. setting up a config file, creating dirs,
+        creating an external resource, starting an atomic deploy, etc.)
+
+        Management command calls this once before iterating over all
+        renderer instances.
+        """
+        pass
+
+    @classmethod
+    def finalize_output(cls):
+        """
+        Things that should be done only once to the output directory AFTER
+        rendering occurs (i.e. writing end of config file, setting up
+        permissions, calling an external "deploy" method, finalizing an
+        atomic deploy, etc.)
+
+        Management command calls this once after iterating over all
+        renderer instances.
+        """
+        pass
+
     def get_paths(self):
         """ Override this in a subclass to define the URLs to process """
         raise NotImplementedError