Debug-action-cache //top\\ May 2026
You changed one line of a README file, but the entire C++ library is recompiling. Why did the hash change?
If you are struggling with cache performance, run through this list: debug-action-cache
In systems like Bazel, you can use flags like --execution_log_json_file . This allows you to see the exact metadata sent to the cache. You can compare logs from two different builds to see which file or environment variable caused the discrepancy. 2. Identifying "Dirty" Environment Variables You changed one line of a README file,
