Enable discord.py logger by default. (modmail-dev#3216)

* Enable `discord.py` logger by default.

* Revert:

- Restore import orders
- Logging stuff is now completely handled in `core.models.configure_logging`

* Update logging configurations

* Updated changelog

* Fix overflow characters in logs when using `?debug` command.

* Update changelog

---------

Co-authored-by: Taku <45324516+Taaku18@users.noreply.github.com>

(cherry picked from commit 43fbc31)
Signed-off-by: Khakers <22665282+khakers@users.noreply.github.com>

Author: Jerrie-Aries

CHANGELOG.md

@@ -52,6 +52,7 @@ however, insignificant breaking changes do not guarantee a major version bump, s
 - Support for trailing space in `?prefix` command, example: `?prefix "mm "` for `mm ping`.
 - Added logviewer as built-in local plugin `?plugin load @local/logviewer`.
 - `?plugin uninstall` is now an alias for `?plugin remove` ([GH #3260](https://github.com/modmail-dev/modmail/issues/3260))
+- `DISCORD_LOG_LEVEL` environment variable to set the log level of discord.py. ([PR #3216](https://github.com/modmail-dev/Modmail/pull/3216))
 
 ### Changed
 - Guild icons in embed footers and author urls now have a fixed size of 128. ([PR #3261](https://github.com/modmail-dev/modmail/pull/3261))
@@ -80,6 +81,9 @@ however, insignificant breaking changes do not guarantee a major version bump, s
 ### Internal
 - `ConfigManager.get` no longer accepts two positional arguments: the `convert` argument is now keyword-only.
 
+### Internal
+- Renamed `Bot.log_file_name` to `Bot.log_file_path`. Log files are now created at `temp/logs/modmail.log`. ([PR #3216](https://github.com/modmail-dev/Modmail/pull/3216))
+
 # v4.0.2
 
 ### Breaking

bot.py

@@ -49,11 +49,10 @@
 )
 from core.thread import ThreadManager
 from core.time import human_timedelta
-from core.utils import normalize_alias, parse_alias, truncate, tryint, human_join
+from core.utils import human_join, normalize_alias, parse_alias, truncate, tryint
 
 logger = getLogger(__name__)
 
-
 temp_dir = os.path.join(os.path.dirname(os.path.abspath(__file__)), "temp")
 if not os.path.exists(temp_dir):
     os.mkdir(temp_dir)
@@ -85,8 +84,11 @@ def __init__(self):
 
         self.threads = ThreadManager(self)
 
-        self.log_file_name = os.path.join(temp_dir, f"{self.token.split('.')[0]}.log")
-        self._configure_logging()
+        log_dir = os.path.join(temp_dir, "logs")
+        if not os.path.exists(log_dir):
+            os.mkdir(log_dir)
+        self.log_file_path = os.path.join(log_dir, "modmail.log")
+        configure_logging(self)
 
         self.plugin_db = PluginDatabaseClient(self)  # Deprecated
 
@@ -186,29 +188,6 @@ async def load_extensions(self):
                 logger.exception("Failed to load %s.", cog)
         logger.line("debug")
 
-    def _configure_logging(self):
-        level_text = self.config["log_level"].upper()
-        logging_levels = {
-            "CRITICAL": logging.CRITICAL,
-            "ERROR": logging.ERROR,
-            "WARNING": logging.WARNING,
-            "INFO": logging.INFO,
-            "DEBUG": logging.DEBUG,
-        }
-        logger.line()
-
-        log_level = logging_levels.get(level_text)
-        if log_level is None:
-            log_level = self.config.remove("log_level")
-            logger.warning("Invalid logging level set: %s.", level_text)
-            logger.warning("Using default logging level: INFO.")
-        else:
-            logger.info("Logging level: %s", level_text)
-
-        logger.info("Log file: %s", self.log_file_name)
-        configure_logging(self.log_file_name, log_level)
-        logger.debug("Successfully configured logging.")
-
     @property
     def version(self):
         return parse_version(__version__)
@@ -1771,16 +1750,6 @@ def main():
     except ImportError:
         pass
 
-    # Set up discord.py internal logging
-    if os.environ.get("LOG_DISCORD"):
-        logger.debug(f"Discord logging enabled: {os.environ['LOG_DISCORD'].upper()}")
-        d_logger = logging.getLogger("discord")
-
-        d_logger.setLevel(os.environ["LOG_DISCORD"].upper())
-        handler = logging.FileHandler(filename="discord.log", encoding="utf-8", mode="w")
-        handler.setFormatter(logging.Formatter("%(asctime)s:%(levelname)s:%(name)s: %(message)s"))
-        d_logger.addHandler(handler)
-
     bot = ModmailBot()
     bot.run()
 

cogs/utility.py

@@ -368,13 +368,7 @@ async def about(self, ctx: commands.Context):
     async def debug(self, ctx):
         """Shows the recent application logs of the bot."""
 
-        log_file_name = self.bot.token.split(".")[0]
-
-        with open(
-            os.path.join(os.path.dirname(os.path.abspath(__file__)), f"../temp/{log_file_name}.log"),
-            "r+",
-            encoding="utf-8",
-        ) as f:
+        with open(self.bot.log_file_path, "r+", encoding="utf-8") as f:
             logs = f.read().strip()
 
         if not logs:
@@ -400,7 +394,7 @@ async def debug(self, ctx):
                     msg = "```Haskell\n"
             msg += line
             if len(msg) + 3 > 2000:
-                msg = msg[:1993] + "[...]```"
+                msg = msg[:1992] + "[...]```"
                 messages.append(msg)
                 msg = "```Haskell\n"
 
@@ -422,12 +416,8 @@ async def debug_hastebin(self, ctx):
         """Posts application-logs to Hastebin."""
 
         haste_url = os.environ.get("HASTE_URL", "https://hastebin.cc")
-        log_file_name = self.bot.token.split(".")[0]
 
-        with open(
-            os.path.join(os.path.dirname(os.path.abspath(__file__)), f"../temp/{log_file_name}.log"),
-            "rb+",
-        ) as f:
+        with open(self.bot.log_file_path, "rb+") as f:
             logs = BytesIO(f.read().strip())
 
         try:
@@ -458,12 +448,7 @@ async def debug_hastebin(self, ctx):
     async def debug_clear(self, ctx):
         """Clears the locally cached logs."""
 
-        log_file_name = self.bot.token.split(".")[0]
-
-        with open(
-            os.path.join(os.path.dirname(os.path.abspath(__file__)), f"../temp/{log_file_name}.log"),
-            "w",
-        ):
+        with open(self.bot.log_file_path, "w"):
             pass
         await ctx.send(
             embed=discord.Embed(color=self.bot.main_color, description="Cached logs are now cleared.")

core/config.py

@@ -177,6 +177,7 @@ class ConfigManager:
         "disable_updates": False,
         # Logging
         "log_level": "INFO",
+        "discord_log_level": "INFO",
         # data collection
         "data_collection": True,
     }

core/config_help.json

@@ -1121,6 +1121,14 @@
             "This configuration can only be set through `.env` file or environment (config) variables."
         ]
     },
+    "discord_log_level": {
+        "default": "INFO",
+        "description": "The `discord.py` library logging level for logging to stdout.",
+        "examples": [],
+        "notes": [
+          "This configuration can only to be set through `.env` file or environment (config) variables."
+        ]
+    },
     "enable_plugins": {
         "default": "Yes",
         "description": "Whether plugins should be enabled and loaded into Modmail.",
@@ -1171,4 +1179,4 @@
             "If you would like to display the top role of a user regardless of if it's hoisted or not, disable `use_hoisted_top_role`."
         ]
     }
-}
+}