rubocop
by rubocop
RuboCop is a Ruby static code analyzer and formatter that enforces community style guidelines and can automatically fix many code issues.
A Ruby static code analyzer and formatter, based on the community Ruby style guide.
Primary Use Case
RuboCop is primarily used by Ruby developers to ensure their code adheres to the community Ruby Style Guide, improving code quality and consistency. It is ideal for integrating into development workflows and CI pipelines to automate style checking and formatting as part of DevSecOps practices.
- Static code analysis and linting for Ruby
- Automatic code formatting and fixing
- Enforces Ruby community style guide by default
- Highly configurable via YAML configuration files
- Supports integration with editors via built-in LSP server
- Stable API and configuration compatibility between minor versions
- Supports MRI Ruby 2.7+ and JRuby 9.4+ runtimes
- Provides badges for README to indicate style compliance
Installation
- Run `gem install rubocop` to install the tool globally
- Alternatively, add `gem 'rubocop', require: false` to your Gemfile for bundler installation
- Use conservative version locking in Gemfile to avoid unwanted updates, e.g., `gem 'rubocop', '~> 1.76', require: false`
Usage
>_ rubocopRuns RuboCop analysis on the current Ruby project directory, reporting style violations and issues.
>_ gem install rubocopInstalls RuboCop as a Ruby gem globally.
>_ gem 'rubocop', require: falseAdd this line to your Gemfile to include RuboCop as a development dependency without auto-requiring it.
>_ rubocop --auto-correctAutomatically fixes many of the detected style offenses (implied from description though not explicitly in README).
- Integrate RuboCop into CI/CD pipelines to automate detection of insecure coding patterns early in development.
- Extend RuboCop with custom cops to detect organization-specific security issues and enforce internal policies.
- Use RuboCop's auto-correct feature to reduce manual remediation effort and improve developer productivity.
- Combine RuboCop analysis results with vulnerability scanners for comprehensive application security assessments.
- Leverage RuboCop's LSP support to provide real-time feedback to developers within their editors, enhancing secure coding practices.
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