1 files changed, 93 insertions, 0 deletions
diff --git a/.i3/scripts/offlineimap-daemon.py b/.i3/scripts/offlineimap-daemon.py
new file mode 100755
index 0000000..fea76fc
--- /dev/null
+++ b/.i3/scripts/offlineimap-daemon.py
@@ -0,0 +1,93 @@
+#!/usr/bin/env python3
+
+import subprocess
+import signal
+import threading
+import sys
+
+import dbus
+from dbus.mainloop.glib import DBusGMainLoop
+from gi.repository import GLib
+
+
+class OfflineimapCtl(object):
+	def __init__(self):
+		self.daemon_proc = None
+		self.run_ev = threading.Event()
+		self.run_daemon = False
+
+	def run(self):
+		t = threading.Thread(target=self._watch_daemon, daemon=True)
+		t.start()
+
+	def _watch_daemon(self):
+		while True:
+			self.run_ev.wait()
+			self.run_ev.clear()
+			if self.run_daemon:
+				self.is_running = True
+				print('offlineimap is being started')
+				self._spawn_daemon()
+				print('offlineimap has stopped')
+				self.run_ev.set() # check state and restart if needed
+
+	def _spawn_daemon(self):
+		self.daemon_proc = subprocess.Popen(['offlineimap', '-u', 'basic'], shell=False)
+		self.daemon_proc.wait()
+		self.daemon_proc = None
+
+	def start(self):
+		print('starting offlineimap')
+		self.run_daemon = True
+		self.run_ev.set()
+
+	def stop(self):
+		print('stopping offlineimap')
+		self.run_daemon = False
+		if self.daemon_proc:
+			try:
+				self.daemon_proc.send_signal(signal.SIGUSR2)
+			except OSError:
+				print('Unable to stop offlineimap')
+
+	def restart(self):
+		print('restarting offlineimap')
+		if self.run_daemon:
+			self.stop()
+			self.start()
+
+	def onConnectivityChanged(self, state):
+		# 70 means fully connected
+		if state == 70:
+			self.start()
+		else:
+			self.stop()
+
+def main():
+	oi_ctl = OfflineimapCtl()
+	oi_ctl.run()
+
+	try:
+		bus = dbus.SystemBus(mainloop=DBusGMainLoop())
+		network_manager = bus.get_object(
+			'org.freedesktop.NetworkManager',
+			'/org/freedesktop/NetworkManager')
+		network = dbus.Interface(network_manager,
+			dbus_interface='org.freedesktop.NetworkManager')
+
+		network.connect_to_signal('StateChanged', oi_ctl.onConnectivityChanged)
+
+		# send current state as first event
+		state = network.state()
+		oi_ctl.onConnectivityChanged(state)
+
+	except dbus.exceptions.DBusException:
+		print('Unable to connect to dbus')
+		sys.exit(3)
+
+	# start receiving events from dbus
+	loop = GLib.MainLoop()
+	loop.run()
+
+if __name__ == '__main__':
+	main()