Bundler-DuplicatedGem.md

Pattern: Duplicate gem

Issue: -

Description

A Gem's requirements should be listed only once in a Gemfile.

Examples

# bad
gem 'rubocop'
gem 'rubocop'

# bad
group :development do
  gem 'rubocop'
end

group :test do
  gem 'rubocop'
end

# good
group :development, :test do
  gem 'rubocop'
end

# good
gem 'rubocop', groups: [:development, :test]

Default configuration

Attribute	Value
Include	**/Gemfile, **/gems.rb

Further Reading

• RuboCop - Bundler/DuplicatedGem