From e6fa2fb1cf54d536278bd591573094b3da03bded Mon Sep 17 00:00:00 2001
From: Fabio Erculiani <lxnay@sabayon.org>
Date: Mon, 2 Apr 2012 14:09:21 +0200
Subject: [PATCH] [RigoDaemon] automatically shutdown on executable change

---
 rigo/RigoDaemon/app.py      | 18 ++++++++++++++----
 rigo/RigoDaemon/shutdown.py | 19 -------------------
 2 files changed, 14 insertions(+), 23 deletions(-)
 delete mode 100644 rigo/RigoDaemon/shutdown.py

diff --git a/rigo/RigoDaemon/app.py b/rigo/RigoDaemon/app.py
index 643042d1e..77a6659df 100755
--- a/rigo/RigoDaemon/app.py
+++ b/rigo/RigoDaemon/app.py
@@ -58,7 +58,7 @@ from entropy.exceptions import DependenciesNotFound, \
     DependenciesCollision, DependenciesNotRemovable, SystemDatabaseError
 from entropy.i18n import _
 from entropy.misc import LogFile, ParallelTask, TimeScheduled, \
-    ReadersWritersSemaphore
+    ReadersWritersSemaphore, DirectoryMonitor
 from entropy.fetchers import UrlFetcher
 from entropy.output import TextInterface, purple
 from entropy.client.interfaces import Client
@@ -449,15 +449,24 @@ class RigoDaemonService(dbus.service.Object):
         Entropy.set_daemon(self)
         self._entropy = Entropy()
         self._fakeout = FakeOutFile(self._entropy)
+        exec_path = sys.argv[0]
         write_output(
-            "__init__: dbus service loaded, pid: %d, ppid: %d" %  (
-                os.getpid(), os.getppid(),)
-                )
+            "__init__: dbus service loaded, "
+            "pid: %d, ppid: %d, exec: %s" %  (
+                os.getpid(), os.getppid(), exec_path,)
+            )
 
         self._deferred_shutdown = False
         self._deferred_shutdown_mutex = Lock()
         signal.signal(signal.SIGUSR2, self._activate_deferred_shutdown)
 
+        flags = DirectoryMonitor.DN_MODIFY | DirectoryMonitor.DN_DELETE | \
+            DirectoryMonitor.DN_RENAME | DirectoryMonitor.DN_CREATE
+        self._mon = DirectoryMonitor(
+            os.path.dirname(exec_path),
+            self._activate_deferred_shutdown,
+            event_flags=flags)
+
     def _activate_deferred_shutdown(self, *args):
         """
         Activate deferred shutdown starting the ping/pong
@@ -569,6 +578,7 @@ class RigoDaemonService(dbus.service.Object):
         """
         write_output("stop(): called", debug=True)
         with self._activity_mutex:
+            GLib.idle_add(self._mon.close)
             self._stop_signal = True
             self._action_queue_waiter.release()
             self._close_local_resources()
diff --git a/rigo/RigoDaemon/shutdown.py b/rigo/RigoDaemon/shutdown.py
deleted file mode 100644
index 063d2c817..000000000
--- a/rigo/RigoDaemon/shutdown.py
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/usr/bin/python
-import sys
-sys.path.insert(0, "./")
-sys.path.insert(1, "/usr/lib/rigo")
-
-import dbus
-from dbus.mainloop.glib import DBusGMainLoop
-from RigoDaemon.config import DbusConfig
-
-if __name__ == "__main__":
-    mainloop = DBusGMainLoop(set_as_default=True)
-    bus = dbus.SystemBus(mainloop=mainloop)
-    entropy_bus = bus.get_object(
-        DbusConfig.BUS_NAME,
-        DbusConfig.OBJECT_PATH)
-    dbus.Interface(
-        entropy_bus,
-        dbus_interface=DbusConfig.BUS_NAME).reload()
-    raise SystemExit(0)