@prettier/plugin-ruby is a prettier plugin for the Ruby programming language (versions 2.5 and above). prettier is an opinionated code formatter that supports multiple languages and integrates with most editors. The idea is to eliminate discussions of style in code review and allow developers to get back to thinking about code design instead.

For example, the below code segment:

        d=[30644250780,9003106878,
    30636278846,66641217692,4501790980,
 671_24_603036,131_61973916,66_606629_920,
   30642677916,30643069058];a,s=[],$*[0]
      s.each_byte{|b|a<<("%036b"%d[b.
         chr.to_i]).scan(/\d{6}/)}
          a.transpose.each{ |a|
            a.join.each_byte{\
             |i|print i==49?\
               ($*[1]||"#")\
                 :32.chr}
                   puts
                    }

when run through @prettier/plugin-ruby will generate:

d = [
  30_644_250_780,
  9_003_106_878,
  30_636_278_846,
  66_641_217_692,
  4_501_790_980,
  671_24_603036,
  131_61973916,
  66_606629_920,
  30_642_677_916,
  30_643_069_058
]
a, s = [], $*[0]
s.each_byte { |b| a << ('%036b' % d[b.chr.to_i]).scan(/\d{6}/) }
a.transpose.each do |a|
  a.join.each_byte { |i| print i == 49 ? ($*[1] || '#') : 32.chr }
  puts
end

To run prettier with the Ruby plugin, you're going to need ruby (version 2.5 or newer) and node (version 8.3 or newer). If you're integrating with a project that is not already using prettier, you should use the ruby gem. Otherwise you can use the npm package directly.

Add this line to your application's Gemfile:

gem 'prettier'

And then execute:

bundle

Or install it yourself as:

gem install prettier

The rbprettier executable is now installed and ready for use:

bundle exec rbprettier --write '**/*.rb'

If you're using the npm CLI, then add the plugin by:

npm install --save-dev prettier @prettier/plugin-ruby

Or if you're using yarn, then add the plugin by:

yarn add --dev prettier @prettier/plugin-ruby

The prettier executable is now installed and ready for use:

./node_modules/.bin/prettier --write '**/*.rb'

Below are the options (from src/ruby.js) that @prettier/plugin-ruby currently supports:

Any of these can be added to your existing prettier configuration file. For example:

{
  "preferSingleQuotes": false
}

Or, they can be passed to prettier as arguments:

prettier --prefer-single-quotes false --write '**/*.rb'

Check out our contributing guide. Bug reports and pull requests are welcome on GitHub at https://github.com/prettier/plugin-ruby.

The package is available as open source under the terms of the MIT License.

Thanks goes to these wonderful people (emoji key):

Kevin Deisz 💻 📖 ⚠️ 🐛	Alan Foster 💻 📖 ⚠️ 🐛	johnschoeman ⚠️	Aaron Jensen 📖	Cameron Bothner 💻	localhost.dev 🐛 💻	David Buchan-Swanson 🐛 💻
Jordan Pickwell 🐛	Josh Justice 🐛	xipgroc 🐛	Gregoire Lejeune 🐛	Pete Van Klaveren 🐛	meleyal 📖	Lipis 📖
Jan Piotrowski 📖	Andy Waite 📖	Jonathan Viney 🐛	acrewdson 🐛	Louis Orleans 🐛	Colton Voege 🐛	Stefan Kracht 🐛
jakeprime 🐛

This project follows the all-contributors specification. Contributions of any kind welcome!