Start to support bundles in plugins

CHANGES.txt

@@ -4,6 +4,7 @@ New in master
 Features
 --------
 
+* Plugins can declare JS and CSS assets to be bundled (Issue #656)
 * Compatibility with doit v0.28.0 (Issue #1655)
 * AddThis is no longer added by default to users’ sites
 * New translations (az, fil, tl, uk, zh_TW)

nikola/plugin_categories.py

@@ -75,7 +75,6 @@ def inject_templates(self):
             # so let’s just ignore it and be done with it.
             pass
 
-
 class Command(BasePlugin, DoitCommand):
     """These plugins are exposed via the command line.
     They implement the doit Command interface."""

nikola/plugins/task/bundles.py

@@ -118,13 +118,19 @@ def build_bundle(output, inputs):
                 yield utils.apply_filters(task, kw['filters'])
 
 
-def get_theme_bundles(themes):
+def get_all_bundles(site):
     """Given a theme chain, return the bundle definitions."""
     bundles = {}
-    for theme_name in themes:
-        bundles_path = os.path.join(
-            utils.get_theme_path(theme_name), 'bundles')
-        if os.path.isfile(bundles_path):
+    themes = filter(
+        os.path.isfile,
+        [os.path.join(utils.get_theme_path(theme_name), 'bundles') for theme_name in site.THEMES]
+    )
+    plugins = filter(
+        os.path.isfile, 
+        [os.path.join(p.path, 'bundles') for p in site.plugin_manager.getAllPlugins()]
+    )
+
+    for bundles_path in themes:
             with open(bundles_path) as fd:
                 for line in fd:
                     try:
@@ -136,3 +142,20 @@ def get_theme_bundles(themes):
                         pass
                 break
     return bundles
+
+def get_plugin_bundles(site):
+    """Get all the bundles declared by all the plugins in the site."""
+    bundles = {}
+
+    bundles_paths = filter(os.path.isfile, bundles_paths)
+    for p in bundles_paths:
+        with open(p) as fd:
+            for line in fd:
+                try:
+                    name, files = line.split('=')
+                    files = [f.strip() for f in files.split(',')]
+                    bundles[name.strip().replace('/', os.sep)] = files
+                except ValueError:
+                    # for empty lines
+                    pass
+    return bundles