Rust Cache Action
A GitHub Action that implements smart caching for rust/cargo projects with sensible defaults.
Example usage
- uses: Swatinem/rust-cache@v1
Cache Details
The cache currently caches the following directories:
~/.cargo/registry/index~/.cargo/registry/cache~/.cargo/git./target
This cache is automatically keyed by:
- the github
job, - the rustc release / host / hash, and
- a hash of the
Cargo.lock/Cargo.tomlfiles.
An additional input key can be provided if the builtin keys are not sufficient.
Before persisting, the cache is cleaned of intermediate artifacts and
anything that is not a workspace dependency.
In particular, no caching of workspace crates will be done. For
this reason, this action will automatically set CARGO_INCREMENTAL=0 to
disable incremental compilation.
The action will try to restore from a previous Cargo.lock version as well, so
lockfile updates should only re-build changed dependencies.
Additionally, the action automatically works around cargo#8603 / actions/cache#403 which would otherwise corrupt the cache on macOS builds.