rust-lang / rust-lang/rust-clippy

Support running a single lint rule with --fix

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C-enhancement
Dominant language
Rust
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Forks
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Avg merge
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Merged PRs (30d)
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Description

Description

The only way to automatically get rid of unused imports in Rust right now is using clippy --fix. But if I only want to remove unused imports, I would have to specify all other lint rules to be allowed:

cargo fix -- -W unused_imports -A dead_code .......

Can we add a way to (potentially to not rust check) to only run lint rule specified on the command line? One nice way would be if this worked:

cargo fix -- -W unused_imports -A warnings .......

alas no matter the position of the -A and -W flags the -A flag is always applied.

Version

No response

Additional Labels

@rustbot label +C-enhancement

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the cargo fix and clippy command-line examples in the issue, comparing how -W unused_imports and -A warnings are applied regardless of order. Trace the command-line handling for cargo fix and Clippy lint selection, then add focused coverage showing that --fix can target only the requested lint rule while preserving existing behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
cli, tooling
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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