new plugin listener

opt/ahenk/base/plugin/plugin_install_listener.py

@@ -0,0 +1,47 @@
+import os
+import signal
+import time
+
+from watchdog.events import FileSystemEventHandler
+from watchdog.observers import Observer
+
+from base.command.commander import Commander
+from base.system.system import System
+
+
+class FileEventHandler(FileSystemEventHandler):
+    def __init__(self, plugin_path):
+        self.path = plugin_path
+
+    def process(self, event):
+
+        if event.event_type == 'created':
+            result = Commander().set_event([None, 'load', '-p', event.src_path.replace(self.path, '')])
+            if result is True:
+                if System.Ahenk.is_running() is True:
+                    os.kill(int(System.Ahenk.get_pid_number()), signal.SIGALRM)
+        elif event.event_type == 'deleted':
+            # TODO
+            print('plugin removed')
+
+    def on_created(self, event):
+        if event.is_directory:
+            self.process(event)
+
+    def on_deleted(self, event):
+        if event.is_directory:
+            self.process(event)
+
+
+class PluginInstallListener:
+    def listen(self, path):
+        observer = Observer()
+        event_handler = FileEventHandler(path)
+        observer.schedule(event_handler, path, recursive=False)
+        observer.start()
+        try:
+            while True:
+                time.sleep(1)
+        except KeyboardInterrupt:
+            observer.stop()
+        observer.join()