Feature Request

Description

Add client identification to Redis connections created by Flask-Caching using the lib_name and lib_version parameters supported by redis-py.

Motivation

Redis servers support the lib_name and lib_version parameters (introduced in redis-py) to help operators identify which upstream libraries are connecting to their servers. This improves observability and debugging for Redis operators.

Currently, Flask-Caching doesn't set these parameters, so Redis operators cannot easily identify Flask-Caching connections.

Proposed Solution

• Set lib_name to redis-py(flask-caching_v<version>) following the redis-py convention for third-party libraries
• Set lib_version to the redis-py version
• Apply to all three Redis backend types: RedisCache, RedisSentinelCache, and RedisClusterCache
• Only set these parameters if not already provided by the user
• Follow redis-py best practices as documented in the CLIENT SETINFO command documentation

Example

With Flask-Caching v2.3.1 and redis-py v5.0.8:

• lib_name: redis-py(flask-caching_v2.3.1)
• lib_version: 5.0.8