What are CircleCI cache keys and how do I use them?

What are CircleCI cache keys and how do I use them?

CircleCI cache keys are identifiers used to store and retrieve cached files in your builds, improving build times.

How do I define a cache key in my CircleCI config?

You can define a cache key in your CircleCI config file using the cache key under a job, like this: cache: paths: - ~/.cache.

Can I use multiple cache keys?

Yes, you can use multiple cache keys by defining them in an array format, allowing you to cache different paths.

What happens if my cache key changes?

If your cache key changes, CircleCI will create a new cache entry, and the old cache will be invalidated.