Use Ruff for format and linting (#201)

And use pyupgrade to modernize code.

Signed-off-by: Inada Naoki <songofacandy@gmail.com>

.github/workflows/test.yml

@@ -7,6 +7,17 @@ on:
   pull_request:
 
 jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - name: Install Ruff
+      run: pipx install ruff
+    - name: Ruff check
+      run: ruff check
+    - name: Ruff format
+      run: ruff format --diff
+
   test:
     runs-on: ubuntu-latest
     strategy:

fluent/__about__.py

@@ -1 +1 @@
-__version__ = '0.10.1dev1'
+__version__ = "0.10.1dev1"

fluent/asynchandler.py

@@ -1,13 +1,11 @@
-# -*- coding: utf-8 -*-
-
 from fluent import asyncsender
 from fluent import handler
 
 
 class FluentHandler(handler.FluentHandler):
-    '''
+    """
     Asynchronous Logging Handler for fluent.
-    '''
+    """
 
     def getSenderClass(self):
         return asyncsender.FluentSender
@@ -18,7 +16,7 @@ def close(self):
             try:
                 self.sender.close()
             finally:
-                super(FluentHandler, self).close()
+                super().close()
         finally:
             self.release()
 

fluent/asyncsender.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 import threading
 from queue import Queue, Full, Empty
 
@@ -17,8 +15,7 @@
 
 
 def _set_global_sender(sender):  # pragma: no cover
-    """ [For testing] Function to set global sender directly
-    """
+    """[For testing] Function to set global sender directly"""
     global _global_sender
     _global_sender = sender
 
@@ -37,41 +34,53 @@ def close():  # pragma: no cover
 
 
 class FluentSender(sender.FluentSender):
-    def __init__(self,
-                 tag,
-                 host='localhost',
-                 port=24224,
-                 bufmax=1 * 1024 * 1024,
-                 timeout=3.0,
-                 verbose=False,
-                 buffer_overflow_handler=None,
-                 nanosecond_precision=False,
-                 msgpack_kwargs=None,
-                 queue_maxsize=DEFAULT_QUEUE_MAXSIZE,
-                 queue_circular=DEFAULT_QUEUE_CIRCULAR,
-                 queue_overflow_handler=None,
-                 **kwargs):
+    def __init__(
+        self,
+        tag,
+        host="localhost",
+        port=24224,
+        bufmax=1 * 1024 * 1024,
+        timeout=3.0,
+        verbose=False,
+        buffer_overflow_handler=None,
+        nanosecond_precision=False,
+        msgpack_kwargs=None,
+        queue_maxsize=DEFAULT_QUEUE_MAXSIZE,
+        queue_circular=DEFAULT_QUEUE_CIRCULAR,
+        queue_overflow_handler=None,
+        **kwargs,
+    ):
         """
         :param kwargs: This kwargs argument is not used in __init__. This will be removed in the next major version.
         """
-        super(FluentSender, self).__init__(tag=tag, host=host, port=port, bufmax=bufmax, timeout=timeout,
-                                           verbose=verbose, buffer_overflow_handler=buffer_overflow_handler,
-                                           nanosecond_precision=nanosecond_precision,
-                                           msgpack_kwargs=msgpack_kwargs,
-                                           **kwargs)
+        super().__init__(
+            tag=tag,
+            host=host,
+            port=port,
+            bufmax=bufmax,
+            timeout=timeout,
+            verbose=verbose,
+            buffer_overflow_handler=buffer_overflow_handler,
+            nanosecond_precision=nanosecond_precision,
+            msgpack_kwargs=msgpack_kwargs,
+            **kwargs,
+        )
         self._queue_maxsize = queue_maxsize
         self._queue_circular = queue_circular
         if queue_circular and queue_overflow_handler:
             self._queue_overflow_handler = queue_overflow_handler
         else:
             self._queue_overflow_handler = self._queue_overflow_handler_default
 
-        self._thread_guard = threading.Event()  # This ensures visibility across all variables
+        self._thread_guard = (
+            threading.Event()
+        )  # This ensures visibility across all variables
         self._closed = False
 
         self._queue = Queue(maxsize=queue_maxsize)
-        self._send_thread = threading.Thread(target=self._send_loop,
-                                             name="AsyncFluentSender %d" % id(self))
+        self._send_thread = threading.Thread(
+            target=self._send_loop, name="AsyncFluentSender %d" % id(self)
+        )
         self._send_thread.daemon = True
         self._send_thread.start()
 
@@ -121,7 +130,7 @@ def _send(self, bytes_):
             return True
 
     def _send_loop(self):
-        send_internal = super(FluentSender, self)._send_internal
+        send_internal = super()._send_internal
 
         try:
             while True:

fluent/event.py

@@ -1,13 +1,11 @@
-# -*- coding: utf-8 -*-
-
 import time
 
 from fluent import sender
 
 
-class Event(object):
+class Event:
     def __init__(self, label, data, **kwargs):
-        assert isinstance(data, dict), 'data must be a dict'
-        sender_ = kwargs.get('sender', sender.get_global_sender())
-        timestamp = kwargs.get('time', int(time.time()))
+        assert isinstance(data, dict), "data must be a dict"
+        sender_ = kwargs.get("sender", sender.get_global_sender())
+        timestamp = kwargs.get("time", int(time.time()))
         sender_.emit_with_time(label, timestamp, data)

fluent/handler.py

@@ -1,19 +1,12 @@
-# -*- coding: utf-8 -*-
-
+import json
 import logging
 import socket
-import sys
-
-try:
-    import simplejson as json
-except ImportError:  # pragma: no cover
-    import json
 
 from fluent import sender
 
 
-class FluentRecordFormatter(logging.Formatter, object):
-    """ A structured formatter for Fluent.
+class FluentRecordFormatter(logging.Formatter):
+    """A structured formatter for Fluent.
 
     Best used with server storing data in an ElasticSearch cluster for example.
 
@@ -33,36 +26,49 @@ class FluentRecordFormatter(logging.Formatter, object):
         Can be an iterable.
     """
 
-    def __init__(self, fmt=None, datefmt=None, style='%', fill_missing_fmt_key=False, format_json=True,
-                 exclude_attrs=None):
-        super(FluentRecordFormatter, self).__init__(None, datefmt)
-
-        if sys.version_info[0:2] >= (3, 2) and style != '%':
+    def __init__(
+        self,
+        fmt=None,
+        datefmt=None,
+        style="%",
+        fill_missing_fmt_key=False,
+        format_json=True,
+        exclude_attrs=None,
+    ):
+        super().__init__(None, datefmt)
+
+        if style != "%":
             self.__style, basic_fmt_dict = {
-                '{': (logging.StrFormatStyle, {
-                    'sys_host': '{hostname}',
-                    'sys_name': '{name}',
-                    'sys_module': '{module}',
-                }),
-                '$': (logging.StringTemplateStyle, {
-                    'sys_host': '${hostname}',
-                    'sys_name': '${name}',
-                    'sys_module': '${module}',
-                }),
+                "{": (
+                    logging.StrFormatStyle,
+                    {
+                        "sys_host": "{hostname}",
+                        "sys_name": "{name}",
+                        "sys_module": "{module}",
+                    },
+                ),
+                "$": (
+                    logging.StringTemplateStyle,
+                    {
+                        "sys_host": "${hostname}",
+                        "sys_name": "${name}",
+                        "sys_module": "${module}",
+                    },
+                ),
             }[style]
         else:
             self.__style = None
             basic_fmt_dict = {
-                'sys_host': '%(hostname)s',
-                'sys_name': '%(name)s',
-                'sys_module': '%(module)s',
+                "sys_host": "%(hostname)s",
+                "sys_name": "%(name)s",
+                "sys_module": "%(module)s",
             }
 
         if exclude_attrs is not None:
             self._exc_attrs = set(exclude_attrs)
             self._fmt_dict = None
             self._formatter = self._format_by_exclusion
-            self.usesTime = super(FluentRecordFormatter, self).usesTime
+            self.usesTime = super().usesTime
         else:
             self._exc_attrs = None
             if not fmt:
@@ -89,7 +95,7 @@ def __init__(self, fmt=None, datefmt=None, style='%', fill_missing_fmt_key=False
 
     def format(self, record):
         # Compute attributes handled by parent class.
-        super(FluentRecordFormatter, self).format(record)
+        super().format(record)
         # Add ours
         record.hostname = self.hostname
 
@@ -103,7 +109,7 @@ def usesTime(self):
         """This method is substituted on construction based on settings for performance reasons"""
 
     def _structuring(self, data, record):
-        """ Melds `msg` into `data`.
+        """Melds `msg` into `data`.
 
         :param data: dictionary to be sent to fluent server
         :param msg: :class:`LogRecord`'s message to add to `data`.
@@ -118,7 +124,7 @@ def _structuring(self, data, record):
         elif isinstance(msg, str):
             self._add_dic(data, self._format_msg(record, msg))
         else:
-            self._add_dic(data, {'message': msg})
+            self._add_dic(data, {"message": msg})
 
     def _format_msg_json(self, record, msg):
         try:
@@ -131,7 +137,7 @@ def _format_msg_json(self, record, msg):
             return self._format_msg_default(record, msg)
 
     def _format_msg_default(self, record, msg):
-        return {'message': super(FluentRecordFormatter, self).format(record)}
+        return {"message": super().format(record)}
 
     def _format_by_exclusion(self, record):
         data = {}
@@ -175,17 +181,18 @@ class FluentHandler(logging.Handler):
     Logging Handler for fluent.
     """
 
-    def __init__(self,
-                 tag,
-                 host='localhost',
-                 port=24224,
-                 timeout=3.0,
-                 verbose=False,
-                 buffer_overflow_handler=None,
-                 msgpack_kwargs=None,
-                 nanosecond_precision=False,
-                 **kwargs):
-
+    def __init__(
+        self,
+        tag,
+        host="localhost",
+        port=24224,
+        timeout=3.0,
+        verbose=False,
+        buffer_overflow_handler=None,
+        msgpack_kwargs=None,
+        nanosecond_precision=False,
+        **kwargs,
+    ):
         self.tag = tag
         self._host = host
         self._port = port
@@ -213,37 +220,53 @@ def sender(self):
                 buffer_overflow_handler=self._buffer_overflow_handler,
                 msgpack_kwargs=self._msgpack_kwargs,
                 nanosecond_precision=self._nanosecond_precision,
-                **self._kwargs
+                **self._kwargs,
             )
         return self._sender
 
-    def getSenderInstance(self, tag, host, port, timeout, verbose,
-                          buffer_overflow_handler, msgpack_kwargs,
-                          nanosecond_precision, **kwargs):
+    def getSenderInstance(
+        self,
+        tag,
+        host,
+        port,
+        timeout,
+        verbose,
+        buffer_overflow_handler,
+        msgpack_kwargs,
+        nanosecond_precision,
+        **kwargs,
+    ):
         sender_class = self.getSenderClass()
-        return sender_class(tag,
-                            host=host, port=port,
-                            timeout=timeout, verbose=verbose,
-                            buffer_overflow_handler=buffer_overflow_handler,
-                            msgpack_kwargs=msgpack_kwargs,
-                            nanosecond_precision=nanosecond_precision, **kwargs)
+        return sender_class(
+            tag,
+            host=host,
+            port=port,
+            timeout=timeout,
+            verbose=verbose,
+            buffer_overflow_handler=buffer_overflow_handler,
+            msgpack_kwargs=msgpack_kwargs,
+            nanosecond_precision=nanosecond_precision,
+            **kwargs,
+        )
 
     def emit(self, record):
         data = self.format(record)
         _sender = self.sender
-        return _sender.emit_with_time(None,
-                                      sender.EventTime(record.created)
-                                      if _sender.nanosecond_precision
-                                      else int(record.created),
-                                      data)
+        return _sender.emit_with_time(
+            None,
+            sender.EventTime(record.created)
+            if _sender.nanosecond_precision
+            else int(record.created),
+            data,
+        )
 
     def close(self):
         self.acquire()
         try:
             try:
                 self.sender.close()
             finally:
-                super(FluentHandler, self).close()
+                super().close()
         finally:
             self.release()