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feat(caching): Cache clojure dependencies #831
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Fixes netlify#485. This speeds up builds that use the [Clojure CLI][clojure-cli] by avoiding network calls to download dependencies. When a repo has a `deps.edn` file, we assume it is a Clojure repo. We cache its dependencies by caching the following files: * `.m2` As a JVM language, most Clojure dependencies are stored in the global `.m2` directory. * `.gitlibs` The Clojure CLI can also download dependencies directly from git repositories rather than from a package manager. It caches these downloads in the `.gitlibs` directory. * `.cpcache` Clojure uses the `.cpcache` directory to avoid unnecessarily re-calculating the JVM classpath. Caching this directory won't prevent downloads, but does improve build time slightly. [clojure-cli]: https://clojure.org/reference/deps_and_cli
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Summary
Fixes #485.
Projects that contain a
deps.ednfile are compiled by the Clojure CLI. (This is analogous to a Gemfile, which signals that a project is built with ruby.)This PR speeds up builds of these projects by caching their dependencies. The following directories are now cached:
.m2As a JVM language, most Clojure dependencies are stored in the global.m2directory..gitlibsThe Clojure CLI can also download dependencies directly from git repositories rather than from a package manager. It saves these downloads in the.gitlibsdirectory..cpcacheClojure uses the.cpcachedirectory to avoid unnecessarily re-calculating the JVM classpath. Caching this directory won't prevent downloads, but does improve build time slightly.For us to review and ship your PR efficiently, please perform the following steps:
Update or add tests (if any source code was changed or added) 🧪Update the included software doc (if you updated included software) 📄Update or add documentation (if features were changed or added) 📝