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v0.1.0

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@npow npow released this 15 Feb 20:28

Initial release.

Highlights

oxicop is a Ruby linter written in Rust. It reads your existing .rubocop.yml and runs 2-30x faster than RuboCop, with zero Ruby dependencies.

Cops

21 cops ship in this release:

Layout: TrailingWhitespace, TrailingEmptyLines, LeadingEmptyLines, EndOfLine, IndentationStyle, IndentationWidth, SpaceAfterComma, SpaceAroundOperators, EmptyLineBetweenDefs, SpaceInsideParens

Style: FrozenStringLiteralComment, StringLiterals, NegatedIf, RedundantReturn, EmptyMethod

Lint: Debugger, LiteralInCondition, DuplicateMethods

Naming: MethodName, VariableName, ConstantName

Performance

Benchmarked on 5 real-world Ruby projects (Jekyll, RuboCop, Mastodon, Rails, Discourse). Same cops, median of 5 runs.

Jekyll     (160 files)    rubocop: 797ms  oxicop:  25ms  ~32x faster
RuboCop    (1,665 files)  rubocop: 778ms  oxicop:  78ms  ~10x faster
Mastodon   (3,057 files)  rubocop: 765ms  oxicop: 103ms   ~7x faster
Rails      (3,384 files)  rubocop: 778ms  oxicop: 184ms   ~4x faster
Discourse  (8,975 files)  rubocop: 775ms  oxicop: 405ms   ~2x faster

Install

cargo install oxicop

What's next

  • More cops (porting from RuboCop's 700+)
  • --fix autocorrect
  • tree-sitter-ruby integration for AST-accurate analysis
  • Editor/LSP support