Add delta logging

example.env

@@ -44,3 +44,4 @@ tmo_print_config=True
 # tmo_print_config      # {True | False } Output configuration to console
 # tmo_logfile           # Filename for logging output
 # tmo_log_all           # Log all connection statistics
+# tmo_log_delta         # Log any change in connection statistics

tmo-monitor.py

@@ -14,6 +14,8 @@
 import os
 from dotenv import load_dotenv, find_dotenv
 import re
+import tailer
+from parse import *
 
 class TrashCanController:
   def __init__(self, username, password):
@@ -188,7 +190,7 @@ def __init__(self):
     self.ping = dict([('interface', ''), ('ping_host', 'google.com'), ('ping_count', 1), ('ping_interval', 10)])
     self.connection = dict([('primary_band', ''), ('secondary_band', 'n41'), ('enbid', ''), ('uptime', '')])
     self.reboot = dict([('uptime', 90), ('ping', False), ('4G_band', False), ('5G_band', False), ('enbid', False)])
-    self.general = dict([('print_config', False), ('logfile', '')])
+    self.general = dict([('print_config', False), ('logfile', ''), ('log_all', False), ('log_delta', False)])
 
     # Command line arguments override defaults & .env file
     self.read_environment()
@@ -245,23 +247,16 @@ def read_environment(self):
         self.reboot[var] = True
       else:
         self.reboot[var] = False
-    tmp = os.environ.get('tmo_print_config')
-    if tmp != None:
-        if tmp.lower() == 'true':
-          self.general['print_config'] = True
-        else:
-          self.general['print_config'] = False
     tmp = os.environ.get('tmo_logfile')
     if tmp != None:
         self.general['logfile'] = tmp
-    tmp = os.environ.get('tmo_log_all')
-    if tmp != None:
-        if tmp.lower() == 'true':
-          self.general['log_all'] = True
-        else:
-          self.general['log_all'] = False
-
-
+    for var in {'print_config', 'log_all', 'log_delta'}:
+      tmp = os.environ.get('tmo_' + var)    
+      if tmp != None:
+          if tmp.lower() == 'true':
+            self.general[var] = True
+          else:
+            self.general[var] = False
 
   def parse_commandline(self):
     self.parser = argparse.ArgumentParser(description='Check T-Mobile Home Internet cellular band(s) and connectivity and reboot if necessary')
@@ -357,7 +352,7 @@ def print_config(self):
     reboot_requested = False
 
   log_all = False  
-  if config.general['log_all']:
+  if config.general['log_all'] or config.general['log_delta']:
     log_all = True
     connection = dict([('4G', ''), ('5G', ''), ('enbid', ''), ('ping', '')])
 
@@ -443,9 +438,40 @@ def print_config(self):
   else:
     print('No reboot necessary.')
 
-  if log_all:
+  if log_all and config.general['log_delta'] and config.general['logfile']:
+    logline = tailer.tail(open(config.general['logfile']), 1)
+    for line in logline:
+        if line.__contains__('|'):
+            data = parse("{0} [INFO] 4G: {1} |  5G: {2} | eNB ID: {3} | Avg Ping: {4} ms | Uptime: {5} sec", line)
+
+    if data[1] != connection['4G']:
+      msg = "4G connection is {0}, was {1}".format(connection['4G'], data[1])
+      print(msg)
+      logging.info(msg)
+      config.general['log_all'] = True
+    if data[2] != connection['5G']:
+      msg = "5G connection is {0}, was {1}".format(connection['5G'], data[2])
+      print(msg)
+      logging.info(msg)
+      config.general['log_all'] = True
+    if int(data[3]) != connection['enbid']:
+      msg = "eNB ID is {0}, was {1}".format(connection['enbid'], data[3])
+      print(msg)
+      logging.info(msg)
+      config.general['log_all'] = True
+    if int(data[4]) * 3 < connection['ping']:
+      msg = "Ping ms {0}, over 3x {1} ms".format(connection['ping'], data[4])
+      print(msg)
+      logging.info(msg)
+      config.general['log_all'] = True
+    if int(data[5]) > connection['uptime']:
+      msg = "Uptime {0} sec, less than {1} sec".format(connection['uptime'], data[5])
+      print(msg)
+      logging.info(msg)
+      config.general['log_all'] = True
+
+  if log_all and config.general['log_all']:
     msg = "4G: {0} |  5G: {1} | eNB ID: {2} | Avg Ping: {3} ms | Uptime: {4} sec".format(
       connection['4G'], connection['5G'], connection['enbid'], connection['ping'], connection['uptime'])
     print(msg)
     logging.info(msg)
-