Refactored logging rotating handlers for improved flexibility.
diff --git a/Doc/howto/logging-cookbook.rst b/Doc/howto/logging-cookbook.rst
index 7dc8021..37b2f29 100644
--- a/Doc/howto/logging-cookbook.rst
+++ b/Doc/howto/logging-cookbook.rst
@@ -1102,3 +1102,31 @@
For more information about this configuration, you can see the `relevant
section <https://docs.djangoproject.com/en/1.3/topics/logging/#configuring-logging>`_
of the Django documentation.
+
+.. _cookbook-rotator-namer:
+
+Using a rotator and namer to customise log rotation processing
+--------------------------------------------------------------
+
+An example of how you can define a namer and rotator is given in the following
+snippet, which shows zlib-based compression of the log file::
+
+ def namer(name):
+ return name + ".gz"
+
+ def rotator(source, dest):
+ with open(source, "rb") as sf:
+ data = sf.read()
+ compressed = zlib.compress(data, 9)
+ with open(dest, "wb") as df:
+ df.write(compressed)
+ os.remove(source)
+
+ rh = logging.handlers.RotatingFileHandler(...)
+ rh.rotator = rotator
+ rh.namer = namer
+
+These are not “true” .gz files, as they are bare compressed data, with no
+“container” such as you’d find in an actual gzip file. This snippet is just
+for illustration purposes.
+