Initial bundle registry code

sugar/activity/__init__.py

@@ -16,3 +16,10 @@ def get_default_type(activity_type):
 	splitted_id = activity_type.split('.')
 	splitted_id.reverse()
 	return '_' + '_'.join(splitted_id) + '._udp'
+
+from sugar.activity.bundleregistry import BundleRegistry
+
+_bundle_registry = BundleRegistry()
+
+def get_bundle_registry():
+	return _bundle_registry

sugar/activity/bundle.py

@@ -0,0 +1,52 @@
+import logging
+from ConfigParser import ConfigParser
+
+class Bundle:
+	"""Info about an activity bundle. Wraps the activity.info file."""
+	def __init__(self, info_path):
+		self._name = None
+		self._icon = None
+		self._service_name = None
+		self._show_launcher = False
+		self._valid = True
+
+		cp = ConfigParser()
+		cp.read([info_path])
+
+		if cp.has_option('Activity', 'service_name'):
+			self._service_name = cp.get('Activity', 'service_name')
+		else:
+			self._valid = False
+			logging.error('%s must specify a service name' % info_path)
+
+		if cp.has_option('Activity', 'name'):
+			self._service_name = cp.get('Activity', 'name')
+		else:
+			self._valid = False
+			logging.error('%s must specify a name' % info_path)
+
+		if cp.has_option('Activity', 'show_launcher'):
+			if cp.get('Activity', 'show_launcher') == 'yes':
+				self._show_launcher = True
+
+		if cp.has_option('Activity', 'icon'):
+			self._icon = cp.get('Activity', 'icon')
+
+	def is_valid(self):
+		return self._valid
+
+	def get_name(self):
+		"""Get the activity user visible name."""
+		return self._name
+
+	def get_service_name(self):
+		"""Get the activity service name"""
+		return self._id
+
+	def get_icon(self):
+		"""Get the activity icon name"""
+		return self._icon
+
+	def get_show_launcher(self):
+		"""Get whether there should be a visible launcher for the activity"""
+		return self._show_launcher

sugar/activity/bundleregistry.py

@@ -0,0 +1,32 @@
+from sugar.activity.bundle import Bundle
+
+class BundleRegistry:
+	"""Service that tracks the available activity bundles"""
+
+	def __init__(self):
+		self._bundles = {}
+		self._search_path = []
+
+	def get_bundle(self, service_name):
+		"""Returns an bundle given his service name"""
+		if self._bundles.has_key(service_name):
+			return self._bundles[service_name]
+		else:
+			return None
+
+	def append_search_path(self, path):
+		"""Append a directory to the bundles search path"""
+		self._search_path.append(path)
+		self._scan_directory(path)
+	
+	def __iter__(self):
+		return self._bundles.values()
+
+	def _scan_directory(self, path):
+		for bundle_dir in os.listdir(path):
+			if os.path.isdir(bundle_dir):
+				info_path = os.path.join(bundle_dir, activity_info)
+				if os.path.isfile(info_path):
+					bundle = Bundle(info_path)
+					if bundle.is_valid():
+						self._bundles.append(bundle)