Added udevmonitord to monitor udev changes

udevmonitord.py

@@ -0,0 +1,94 @@
+#!/usr/bin/python
+
+"""
+udevmonitord runs in the background and monitors changes in plugged devices
+
+Examples:
+
+# Print to console
+./udevmonitord.py -s 'echo "Device $action $sys_name:$sys_number, $device_type"'
+
+# Show notification
+./udevmonitord.py -s 'notify-send "Device $action $sys_name:$sys_number, $device_type"'
+
+# Run script
+./udevmonitord.py -s /home/lanxu/Scripts/echo.sh
+
+"""
+import os
+import re
+import sys
+import getopt
+
+import pyudev
+import subprocess
+
+import logging
+
+
+__author__ = 'lanxu <jukka.lankinen@gmail.com>'
+
+LOGGING_FORMAT = "%(asctime)s %(levelname)s %(message)s"
+
+def main(argv):
+    ''' main function to parse input and setup logging'''
+    loglevel = logging.ERROR
+    log_file = __file__ + '.log'
+    script_file = None
+
+    try:
+        opts, args = getopt.getopt(argv,"hs:l:v",["scriptfile=","logfile="])
+    except getopt.GetoptError:
+        print('test.py -i <inputfile> -o <outputfile>')
+        sys.exit(1)
+
+    for opt, arg in opts:
+        if opt == '-h':
+            print(__file__ + ' -l logfile.log -s script.sh [-v]')
+            sys.exit()
+        elif opt in ("-v", "--verbose"):
+            loglevel = logging.DEBUG
+        elif opt in ("-l", "--logfile"):
+            log_file = arg
+        elif opt in ("-s", "--scriptfile"):
+            script_file = arg
+
+    logging.basicConfig(format=LOGGING_FORMAT, level=loglevel, handlers=[logging.FileHandler(log_file), logging.StreamHandler()])
+    monitor(script_file)
+
+def monitor(script_file):
+    ''' Start monitoring main loop'''
+    context = pyudev.Context()
+    monitor = pyudev.Monitor.from_netlink(context)
+
+    # Iterate over polled devices
+    for device in iter(monitor.poll, None):
+        # Filter out none types
+        if device.device_type is not None:
+            args = {
+                'action': device.action,
+                'sys_name': device.sys_name,
+                'sys_number': device.sys_number,
+                'driver': device.driver,
+                'device_type': device.device_type
+            }
+            logging.debug(args)
+
+            # Run script if it is defined
+            if script_file:
+                script_env = os.environ.copy()
+                for key, value in args.items():
+                    if value is not None:
+                        script_env[key] = value
+                try:
+                    subprocess.run([script_file], shell=True, check=True, env=script_env)
+                except:
+                    logging.error('Something went wrong!')
+
+
+
+if __name__ == "__main__":
+    main(sys.argv[1:])
+
+
+