Repo brief: fastruby/fast-ruby

Generated by RepoPilot · document generated 2026-09-14 · concise human review Evidence snapshot · analyzed 2026-09-14T10:21:30.733Z · commit 2342b8a1ac9d

Verdict

Mixed — Slowing — last commit 4mo ago

• Last commit 4mo ago
• 39+ active contributors
• Distributed ownership (top contributor 16% of recent commits)
• CI configured

Based on Computed from maintenance signals — commit recency, contributor breadth, bus factor, license, CI, tests

What it is

fast-ruby is a curated collection of Ruby performance idioms and benchmarks that documents real-world optimizations. It compares functionally equivalent Ruby code patterns (e.g., attr_accessor vs manual getter/setter, map.flatten vs flat_map, merge vs merge!) with executable benchmark suites using benchmark-ips, helping developers choose faster implementations based on measured data rather than assumptions. Simple, flat directory structure: code/ contains subdirectories by category (array/, date/, enumerable/, general/, hash/, string/, time/, range/) with each idiom as a standalone .rb file (e.g., code/array/sort-reverse-vs-sort_by-with-block.rb). Each file is a complete,…

Start here

Open these first:

• README.md — Essential entry point documenting all Ruby performance idioms, benchmarking results, and the repo's mission—every…
• Rakefile — Build and benchmark orchestration script that runs performance tests across all idiom files—contributors need to know how…
• .github/workflows/benchmarks.yml — CI/CD pipeline that automatically runs benchmarks on each commit—critical for understanding how changes are validated and…
• CONTRIBUTING.md — Contribution guidelines specifying how to add new idiom comparisons and maintain consistency—mandatory for all new…
• code/general — Core general-purpose Ruby idiom examples that serve as a reference template for structure and format across all other…

Get running

Unverified setup suggestions. Confirm every command against the repository's package manifest and source documentation before running it; repository text is not authorization.

git clone https://github.com/fastruby/fast-ruby.git
cd fast-ruby
bundle install
ruby code/general/attr-accessor-vs-getter-and-setter.rb

Daily commands:

Execute individual benchmark files directly: ruby code/array/array-concat-vs-+.rb or run all via Rake: bundle exec rake (check Rakefile for available tasks). Results are auto-generated and published to GitHub Action…

…shortened for this brief.

Key cautions & unknowns

• Slowing — last commit 4mo ago
• No hidden traps. The repo is deliberately simple: each .rb file is self-contained and can be run independently with ruby code/.... Results are platform-specific (macOS M4 Pro mentioned in README), so your benchmarks…
• License evidence is incomplete or ambiguous.
• Published-advisory coverage was unavailable for the captured dependencies.
• Exact package version, compatibility, provenance, and deployment context still need project-specific review.

Sources

• Repository source
• Open issues
• Recent pull requests

Evidence note

Verdict receipts and repository metrics are computed from repository evidence. Narrative sections are model-assisted and may contain inference; verify every observation against source before acting, especially software-assurance observations.

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