rbcop 0.1.4

Merge pull request #712 from costajohnt/release/0.1.4-checksums

Pin the v0.1.4 release checksums

rbcop 0.1.3

rbcop 0.1.3 still targets RuboCop 1.91.0. Changes since 0.1.2:

• --lsp (#669) and --mcp (#671) servers, and the server options (#667).
• --changed [REVISION] (#677).
• AllCops/UseProjectIndex: the project index and the 17 cops that use it (#674), plus ProjectIndexIncludesGems and the index in --lsp/--mcp (#678).
• The RuboCop fallback is on by default when a config needs cops rbcop cannot run natively; RBCOP_FALLBACK=0 turns it off (#670). docs/known-gaps.md lists every case where rbcop runs Ruby.
• -V lists plugin versions (#668).
• rubocop-capybara 3.1.0 (#676).
• -A on Lint/UnescapedBracketInRegexp Regexp.new strings now finishes (#681).

Install: gem install rbcop, brew install costajohnt/tap/rbcop, or the GitHub Action costajohnt/rbcop@v0.1.3. Checksums: packaging/checksums/0.1.3.sha256.

rbcop 0.1.2

Pin the v0.1.2 release checksums (#666)

Claude-Session: https://claude.ai/code/session_01NQaWbAKB7RgVFxkobx7c4h

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

rbcop 0.1.1

First gem release with ERB config support. New since v0.1.0: .rubocop.yml files containing ERB are rendered the way RuboCop renders them (through ruby -rerb), so projects inheriting rubocop-shopify's config now work (#650).

rbcop is RuboCop 1.91.0 reimplemented in Rust, with byte-identical output: same offenses, messages, -a/-A corrections, formatters and exit codes for the same files and .rubocop.yml.

Install

# Gemfile
gem "rbcop", require: false

then bundle exec rbcop wherever you ran bundle exec rubocop. Prebuilt binaries for macOS (arm64, x86_64) and Linux (x86_64, aarch64, glibc and musl); no Rust toolchain needed. See docs/migration.md for binstubs, CI and editors.

What runs

• All 613 cops in RuboCop 1.91.0's default config.
• Native ports of rubocop-performance 1.27.0, rubocop-rails 2.38.0, rubocop-minitest 0.41.0, rubocop-rspec 3.10.2, rubocop-rspec_rails 2.33.0, rubocop-factory_bot 2.28.0 and rubocop-capybara 3.0.0.
• Cops from other plugins or your own Ruby code are not run; rbcop names them on stderr, and RBCOP_FALLBACK=1 hands them to RuboCop.

Speed

CI-shaped runs, each project with its own .rubocop.yml, 2 vCPUs, RuboCop 1.91.0 --parallel with an empty result cache vs rbcop (median of 3): rails 98.7 s vs 4.89 s, discourse 273.7 s vs 19.31 s, mastodon 116.0 s vs 12.11 s (docs/benchmarks.md).

Known gaps

docs/known-gaps.md lists every known difference. The ones most likely to matter:

• Remote inherit_from URLs are not supported yet (#294). ERB in config needs a ruby on PATH, and the template cannot see RuboCop's own constants (such as RuboCop::Version).
• No result cache (#281), --auto-gen-config (#288), LSP or server mode (#292, #293).
• Windows is not supported.

Checksums for every file are in SHA256SUMS and pinned in packaging/checksums/0.1.1.sha256.

rbcop 0.1.0

v0.1.0

docs: README speed section with average speedup over eight corpora (#…