Check disk free space ahead of time when updating toolchains

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#4,653 opened on Dec 20, 2025 0 comments 1 reaction 0 assignees View on GitHub

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Assessment

Difficulty: 5/5
Estimated time: Over a week
Newbie friendliness: 35/100

Issue type: Feature
Clarity: Needs clarification
Activity status: Stale
Tech stack: rust
Domain: cli

Research direction

No files, tests, or entry points are named. Start by tracing the toolchain update and rollback flow, then identify how available disk space and toolchain sizes can be determined before the update; done means low-space updates fail with a user-facing prompt before consuming the remaining space.

Written by the indexing model from the issue text.

Description

enhancement

Problem you are trying to solve

Currently, when the disk free space is low (still usable, but not enough for the old toolchain and new toolchain to coexist), the update proceeds, then when using up all remaining space, it rolls back.

Solution you'd like

This processed could be enhanced to estimating remaining space a head of time, and failing and prompting user early.

Notes

No response

Dominant language: Rust
Stars: 7k
Forks: 1.1k
Avg merge: 1d 1h
Merged PRs (30d): 46

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