[Status] Add statusdev clearchannels command (#104)

Closes #101

status/commands/statusdev_com.py

@@ -213,3 +213,21 @@ async def devenvvars(self, ctx: commands.Context):
         except Exception:
             _log.exception("Unable to add dev env vars.")
             await ctx.send("I was unable to add them. Check the logs.")
+
+    @commands.before_invoke(unsupported)
+    @statusdev.command(aliases=["cl"], hidden=True)
+    async def clearchannels(self, ctx: commands.Context):
+        """Clear channels from Config that no longer exists."""
+        data = await self.config.all_channels()
+        count = 0
+        for channel_id in data.keys():
+            channel = self.bot.get_channel(channel_id)
+            if channel is None:
+                await self.config.channel_from_id(channel_id).clear()
+                count += 1
+
+        await ctx.send(
+            f"Successfully cleared out {count:,} channels."
+            if count
+            else "There was no channels to clear."
+        )

status/updateloop/utils.py

@@ -60,7 +60,11 @@ async def get_channel_data(bot: Red, c_id: int, settings: ConfChannelSettings) -
     channel = bot.get_channel(c_id)
     if channel is None:
         # TODO: maybe remove from config
-        _log.info(f"I can't find the channel with id {c_id} - skipping")
+        _log.info(
+            f"I can't find the channel with id {c_id} - skipping. "
+            "You can use the [p]statusdev clearchannels in order to "
+            "remove all no longer existing channels"
+        )
         raise NotFound
 
     if TYPE_CHECKING: