mirror of
https://github.com/solero/houdini.git
synced 2024-11-14 22:58:21 +00:00
87 lines
3.0 KiB
Python
87 lines
3.0 KiB
Python
|
import sys
|
||
|
|
import importlib
|
||
|
|
import os.path
|
||
|
|
import copy
|
||
|
|
import asyncio
|
||
|
|
from watchdog.events import FileSystemEventHandler
|
||
|
|
|
||
|
|
from Houdini.Events import evaluate_handler_file_event
|
||
|
|
|
||
|
|
|
||
|
|
class PluginFileEventHandler(FileSystemEventHandler):
|
||
|
|
|
||
|
|
def __init__(self, server):
|
||
|
|
self.logger = server.logger
|
||
|
|
self.server = server
|
||
|
|
|
||
|
|
def on_created(self, event):
|
||
|
|
plugin_module_details = evaluate_handler_file_event(event)
|
||
|
|
|
||
|
|
if not plugin_module_details:
|
||
|
|
return
|
||
|
|
|
||
|
|
plugin_module_path, plugin_module = plugin_module_details
|
||
|
|
|
||
|
|
self.logger.debug('New handler module detected %s', plugin_module)
|
||
|
|
|
||
|
|
try:
|
||
|
|
plugin_module_object = importlib.import_module(plugin_module)
|
||
|
|
plugin_class = plugin_module_object.__name__.split(".")[2]
|
||
|
|
|
||
|
|
asyncio.run(self.server.load_plugin((plugin_module_object, plugin_class)))
|
||
|
|
|
||
|
|
self.logger.info('New plugin \'%s\' has been loaded.' % plugin_class)
|
||
|
|
except Exception as import_error:
|
||
|
|
self.logger.error('%s detected in %s, not importing.', import_error.__class__.__name__, plugin_module)
|
||
|
|
|
||
|
|
def on_deleted(self, event):
|
||
|
|
plugin_module_path = event.src_path[2:]
|
||
|
|
|
||
|
|
plugin_module = plugin_module_path.replace(os.path.pathsep, ".")
|
||
|
|
|
||
|
|
if plugin_module not in sys.modules:
|
||
|
|
return
|
||
|
|
|
||
|
|
self.logger.debug('Deleting listeners registered by %s.', plugin_module)
|
||
|
|
|
||
|
|
plugin_module_object = sys.modules[plugin_module]
|
||
|
|
plugin_class = plugin_module_object.__name__.split(".")[2]
|
||
|
|
|
||
|
|
self.server.unload_plugin((plugin_module_object, plugin_class))
|
||
|
|
|
||
|
|
def on_modified(self, event):
|
||
|
|
plugin_module_details = evaluate_handler_file_event(event)
|
||
|
|
|
||
|
|
if not plugin_module_details:
|
||
|
|
return
|
||
|
|
|
||
|
|
plugin_module_path, plugin_module = plugin_module_details
|
||
|
|
|
||
|
|
if plugin_module not in sys.modules:
|
||
|
|
return
|
||
|
|
|
||
|
|
self.logger.info('Reloading %s', plugin_module)
|
||
|
|
|
||
|
|
plugin_module_object = sys.modules[plugin_module]
|
||
|
|
plugin_class = plugin_module_object.__name__.split(".")[2]
|
||
|
|
|
||
|
|
xt_listeners, xml_listeners = copy.copy(self.server.xt_listeners), copy.copy(self.server.xml_listeners)
|
||
|
|
|
||
|
|
self.server.unload_plugin((plugin_module_object, plugin_class))
|
||
|
|
|
||
|
|
try:
|
||
|
|
new_plugin_module = importlib.reload(plugin_module_object)
|
||
|
|
asyncio.run(self.server.load_plugin((new_plugin_module, plugin_class)))
|
||
|
|
|
||
|
|
self.logger.info('Successfully reloaded %s!', plugin_module)
|
||
|
|
except LookupError as lookup_error:
|
||
|
|
self.logger.warn('Did not reload plugin \'%s\': %s.', plugin_class, lookup_error)
|
||
|
|
except Exception as rebuild_error:
|
||
|
|
self.logger.error('%s detected in %s, not reloading.', rebuild_error.__class__.__name__, plugin_module)
|
||
|
|
self.logger.info('Restoring handler references...')
|
||
|
|
|
||
|
|
self.server.xt_handlers = xt_listeners
|
||
|
|
self.server.xml_handlers = xml_listeners
|
||
|
|
|
||
|
|
self.logger.info('Restored handler references. Phew!')
|