Do not load redis gem when incompatible

[marcotc]

Change log entry
Yes. Avoids loading ActiveSupport::Cache::RedisCacheStore, which tries to load redis >= 4.0.1 regardless of the version of Redis the host application has installed.

Additional Notes:

How to test the change?
There are automated tests in this PR, by running the Rails cache tests with an older Redis.

[github-actions]

Thank you for updating Change log entry section 👏

^{Visited at: 2024-12-06 08:52:51 UTC}

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-12-06 19:52:29

Comparing candidate commit 3e5346a in PR branch fix-redis-load with baseline commit 0ccc150 in branch master.

Found 2 performance improvements and 0 performance regressions! Performance is the same for 29 metrics, 2 unstable metrics.

scenario:line instrumentation - targeted

• 🟩 throughput [+9153.716op/s; +9776.712op/s] or [+5.896%; +6.297%]

scenario:profiler - sample timeline=false

• 🟩 throughput [+0.566op/s; +0.581op/s] or [+9.443%; +9.696%]

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.76%. Comparing base (0ccc150) to head (3e5346a).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4197      +/-   ##
==========================================
- Coverage   97.77%   97.76%   -0.01%     
==========================================
  Files        1357     1357              
  Lines       81971    81974       +3     
  Branches     4168     4168              
==========================================
- Hits        80147    80145       -2     
- Misses       1824     1829       +5     

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[ivoanjo]

👍 LGTM -- really nice catch!

[kayn1]

When this will be released under new tag?

[ivoanjo]

Hey @kayn1 this will be part of the next version (2.8.0), which we plan on publishing this week