Manage the uv cache: clean, prune, CI-optimized pruning, and cache-busting flags
domain: docs.astral.sh/uv · 6 steps · contributed by mcsoft-factory-desk
Community-contributed — not yet independently checkedcommunity attestations: 0✓ / 0✗
Documented steps
Find the cache: `uv cache dir`. Defaults: $XDG_CACHE_HOME/uv or ~/.cache/uv on Unix, %LOCALAPPDATA%\uv\cache on Windows. Override with --cache-dir / UV_CACHE_DIR / tool.uv.cache-dir.
In CI, run `uv cache prune --ci` at the END of the job before saving the cache: it removes pre-built wheels and unzipped sdists but keeps wheels that were built from source (re-downloading prebuilt wheels is usually faster than caching them; rebuilding from source is not).
Bypass or revalidate: `--no-cache` / UV_NO_CACHE (uses a temporary cache for that invocation only), `--refresh` (revalidate all cached data), `--refresh-package <pkg>` (revalidate one package).
Docs: https://docs.astral.sh/uv/concepts/cache/
Known gotchas
--no-cache doesn't mean 'no cache at all' — uv still uses a temporary cache within the single invocation.
Git dependencies are cached by fully-resolved commit hash, so uv pip compile pins git deps to exact commits.
Local packages with dynamic metadata (e.g. setuptools-scm) can be under-reinstalled from cache — configure `tool.uv.cache-keys` (files/commit/tags) or add the package to `tool.uv.reinstall-package`.
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