add helper function to discovery to list plugins

mythril/plugin/discovery.py

@@ -2,6 +2,8 @@ import pkg_resources
 from mythril.support.support_utils import Singleton
 from mythril.plugin.interface import MythrilPlugin
 
+from typing import List
+
 
 class PluginDiscovery(object, metaclass=Singleton):
     """PluginDiscovery class
@@ -9,7 +11,7 @@ class PluginDiscovery(object, metaclass=Singleton):
      This plugin implements the logic to discover and build plugins in installed python packages
     """
 
-    # Installed plugins structure. Retreives all modules that have an entry point for mythril.plugins
+    # Installed plugins structure. Retrieves all modules that have an entry point for mythril.plugins
     _installed_plugins = {
         entry_point.name: entry_point.load()
         for entry_point in pkg_resources.iter_entry_points("mythril.plugins")
@@ -30,3 +32,17 @@ class PluginDiscovery(object, metaclass=Singleton):
             raise ValueError(f"No valid plugin was found for {plugin_name}")
 
         return plugin
+
+    def get_plugins(self, default_enabled=None) -> List[str]:
+        """ Gets a list of installed mythril plugins
+
+        :param default_enabled: Select plugins that are enabled by default
+        :return: List of plugin names
+        """
+        if default_enabled is None:
+            return list(self._installed_plugins.keys())
+
+        return [
+            plugin_name for plugin_name, plugin_class
+            in self._installed_plugins.items() if plugin_class.default_enabled == default_enabled
+        ]