What is CircleCI caching and how does it work?

What is CircleCI caching and how does it work?

CircleCI caching is a feature that allows you to store dependencies and build artifacts to speed up your builds. It works by saving files from previous builds and reusing them in future builds, reducing the time and resources needed.

What types of files can be cached in CircleCI?

You can cache various types of files, including dependencies like npm packages, Docker images, and build artifacts. Essentially, any file that can be reused in future builds can be cached.

How do I set up caching in my CircleCI configuration?

To set up caching, you need to define a cache key in your .circleci/config.yml file and specify the paths to the files you want to cache. CircleCI will handle the rest.

Are there any best practices for using CircleCI caching?

Yes, some best practices include using unique cache keys for different branches, regularly cleaning up old caches, and caching only what is necessary to avoid bloating your cache.