# V2 Rust Local Build Cache

`V2/ue/Tools/manage-v2-rust-local-build-cache.py` creates a developer-local
compiled crate cache plan. It reuses the same content key inputs as
`plan-v2-rust-artifact-cache.py`, then stores branch-agnostic artifact objects
under `.cache/v2/rust-local-build-cache/objects/sha256`.

Branch names are only refs. A branch ref points at a content-addressed object,
so switching from `feature/a` to `feature/b` can restore the same compiled crate
when the crate inputs, dependency closure, Rust version, target triple, and
profile match. This prevents duplicate local archives for identical artifacts
while still leaving a branch-scoped audit trail.

The generated plan includes restore commands, save commands, branch ref paths,
and content addresses for each crate/profile/target entry. The cache root is
already covered by the repository `.gitignore` through `.cache/`.

Horde gates require `rust-local-build-cache-plan-generated`,
`rust-local-build-cache-content-addressed`, and
`rust-local-build-cache-restore-coverage`.