astral-sh/uv

uv cache size limit

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#5,731 opened on Aug 2, 2024

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 (28 comments) (43 reactions) (0 assignees)Rust (84,934 stars) (3,111 forks)batch import
cacheenhancementhelp wantedneeds-design

Description

Unless I missed it, I think currently there is no way to limit the cache size.

I think this would be valuable in ci self-hosted runners where the cache can grow pretty big due to the need to support many python versions packages downloads, we have seen it growing up to ~40GB.

E.g. sccache has a SCCACHE_CACHE_SIZE that sets a maximum size of the cache.

At the moment, if it grows to big you run uv cache clean and start over the game again, but with a cache size limit one wouldn't have to worry.

What do you think?

PS.: thanks for making pip installs great again

Contributor guide

Tech stack
rust
Domain
clitooling
Issue type
feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
3-5 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
Basic Rust knowledgeFamiliarity with uv's cache systemUnderstanding of cache eviction strategies
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
35
Research direction
Review the current cache implementation in uv, particularly the `uv cache` crate. Examine the discussion in issue #5731 for proposed approaches and any tentative design. Study sccache's `SCCACHE CACHE SIZE` configuration as a reference. Implement a configuration option and size based cache eviction.