Added debug mode activated with --debug and some additional error handling logic

settings.json.example

@@ -19,21 +19,24 @@
             "default": {
                 "formatter": "standard",
                 "class": "logging.StreamHandler",
-                "stream": "ext://sys.stdout"
+                "stream": "ext://sys.stdout",
+                "level": 0
             },
             "file": {
                "formatter": "standard",
                "class": "logging.handlers.TimedRotatingFileHandler",
-               "filename": "error.log",
+               "filename": "logs/error.log",
                 "interval": 7,
-                "when": "D"
+                "when": "D",
+                "level": 25
            }
         },
         "loggers": {
             "": {
                 "level": 0,
                 "handlers": [
-                    "default"
+                    "default",
+                    "file"
                 ]
             },
             "rcgcdb.bot": {},

src/argparser.py

@@ -0,0 +1,5 @@
+import argparse
+
+parser = argparse.ArgumentParser(description="Starts the bot to retrieve wiki recent changes.")
+parser.add_argument("-d", "--debug", action='store_true', help="Starts debugging session, will cause exceptions to return immediately")
+command_line_args = parser.parse_args()

src/bot.py

@@ -3,10 +3,12 @@ import asyncio
 import logging.config
 import signal
 import sys
+import traceback
 from collections import defaultdict
 
 import requests
 
+from src.argparser import command_line_args
 from src.config import settings
 from src.database import db_cursor
 from src.exceptions import *
@@ -14,12 +16,15 @@ from src.misc import get_paths
 from src.msgqueue import messagequeue
 from src.queue_handler import DBHandler
 from src.wiki import Wiki, process_cats, process_mwmsgs, essential_info
-from src.discord import DiscordMessage
+from src.discord import DiscordMessage, formatter_exception_logger
 
 logging.config.dictConfig(settings["logging"])
 logger = logging.getLogger("rcgcdb.bot")
 logger.debug("Current settings: {settings}".format(settings=settings))
-logger.info("RcGcDb v.{} is starting up.".format("1.0"))
+logger.info("RcGcDb v{} is starting up.".format("1.0"))
+
+if command_line_args.debug:
+	logger.info("Debug mode is active!")
 
 # Log Fail states with structure wiki_url: number of fail states
 all_wikis: dict = {}
@@ -78,7 +83,7 @@ async def wiki_scanner():
 						wiki_response = await local_wiki.fetch_wiki(extended, db_wiki["wiki"], session)
 						await local_wiki.check_status(db_wiki["wiki"], wiki_response.status)
 					except (WikiServerError, WikiError):
-						logger.exception("Exeption when fetching the wiki")
+						logger.error("Exeption when fetching the wiki")
 						continue  # ignore this wiki if it throws errors
 					try:
 						recent_changes_resp = await wiki_response.json()
@@ -114,8 +119,14 @@ async def wiki_scanner():
 				for change in recent_changes:  # Yeah, second loop since the categories require to be all loaded up
 					if change["rcid"] > db_wiki["rcid"]:
 						for target in targets.items():
+							try:
 								await essential_info(change, categorize_events, local_wiki, db_wiki, target, paths,
 							                     recent_changes_resp)
+							except:
+								if command_line_args.debug:
+									raise  # reraise the issue
+								else:
+									await formatter_exception_logger(db_wiki["wiki"], change, traceback.format_exc())
 				if recent_changes:
 					DBHandler.add(db_wiki["wiki"], change["rcid"])
 				DBHandler.update_db()
@@ -143,7 +154,10 @@ def global_exception_handler(loop, context):
 	"""Global exception handler for asyncio, lets us know when something crashes"""
 	msg = context.get("exception", context["message"])
 	logger.error("Global exception handler: {}".format(msg))
+	if command_line_args.debug is False:
 		requests.post("https://discord.com/api/webhooks/"+settings["monitoring_webhook"], data=repr(DiscordMessage("compact", "monitoring", [settings["monitoring_webhook"]], wiki=None, content="[RcGcDb] Global exception handler: {}".format(msg))), headers={'Content-Type': 'application/json'})
+	else:
+		shutdown(loop)
 
 async def main_loop():
 	loop = asyncio.get_event_loop()

src/discord.py

@@ -6,6 +6,7 @@ from src.config import settings
 from src.database import db_cursor
 from src.i18n import langs
 from asyncio import TimeoutError
+
 import aiohttp
 
 logger = logging.getLogger("rcgcdb.discord")
@@ -105,6 +106,18 @@ async def wiki_removal_monitor(wiki_url, status):
 	await send_to_discord_webhook_monitoring(DiscordMessage("compact", "webhook/remove", content="Removing {} because {}.".format(wiki_url, status), webhook_url=[None], wiki=None))
 
 
+async def formatter_exception_logger(wiki_url, change, exception):
+	"""Creates a Discord message reporting a crash in RC formatter area"""
+	message = DiscordMessage("embed", "bot/exception", [None], wiki=None)
+	message["description"] = exception
+	message["title"] = "RC Exception Report"
+	change = change[0:1000]
+	message.add_field("Wiki URL", wiki_url)
+	message.add_field("Change", change)
+	message.finish_embed()
+	await send_to_discord_webhook_monitoring(message)
+
+
 async def send_to_discord_webhook_monitoring(data: DiscordMessage):
 	header = settings["header"]
 	header['Content-Type'] = 'application/json'