scanner exception handling

README.md

@@ -115,6 +115,7 @@ python3 src/main.py
 * **v1.14**
   * `mobile/mention` arg to fix mobile bug
   * `%repeat`, `%mobile` to repeat commands
+  * bug fix
 * **v1.13**
   * improved scan `%words`
   * remove old and unused logs at start and guild leaving

src/scanners/scanner.py

@@ -57,6 +57,8 @@ class Scanner(ABC):
     ):
         args = list(args)
         guild = message.guild
+        progress = None
+        try:
             with GuildLogs(guild) as logs:
                 # If "%cmd help" redirect to "%help cmd"
                 if "help" in args:
@@ -168,7 +170,8 @@ class Scanner(ABC):
                                         logs.channels[channel.id].start_date
                                         for channel in self.channels
                                         if channel.id in logs.channels
-                                    and logs.channels[channel.id].start_date is not None
+                                        and logs.channels[channel.id].start_date
+                                        is not None
                                     ]
                                 ),
                             )
@@ -221,7 +224,9 @@ class Scanner(ABC):
                                     self.stop_date,
                                 )
                             )
-                        logging.info(f"scan {guild.id} > results in {delta(t0):,}ms")
+                            logging.info(
+                                f"scan {guild.id} > results in {delta(t0):,}ms"
+                            )
                             response = ""
                             first = True
                             allowed_mentions = (
@@ -249,6 +254,14 @@ class Scanner(ABC):
                             command_cache.cache(self, message, args)
                 # Delete custom progress message
                 await progress.delete()
+        except Exception as error:
+            logging.exception(error)
+            await message.channel.send(
+                "An unexpected error happened while computing your command, we're sorry for the inconvenience.",
+                reference=message,
+            )
+            if progress is not None:
+                await progress.delete()
 
     @abstractmethod
     async def init(self, message: discord.Message, *args: str) -> bool: