ROpen3

Adds rbenv compatibility to the Open3 suite of process tools for easier instantiation of alternate Ruby versions from a Ruby parent process.

Installation

Add this line to your application's Gemfile:

gem 'ropen3'

And then execute:

bundle install

Or install it yourself as:

gem install ropen3

Usage

To use ROpen3, establish the required version and Gemfile parameters, then issue one or more popen3 operations:

ro = ROpen3.new(version: '2.3.3')

ro.popen3('gem env') do |_sin, sout, serr, proc|
  print sout.read
end

This can also be done using a block style:

ROpen3.new(version: '2.3.3') do |ro|
  ro.popen3('gem env') do |_sin, sout, serr, proc|
    print sout.read
  end
end

All popen3 options, including environment variable overrides, are supported as these are forwarded through:

ROpen3.new(version: '2.3.3') do |ro|
  ro.popen3({ 'VERBOSE' => '1' }, 'example', binmode: true) do |_sin, sout, serr, proc|
    print sout.read
  end
end

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/postageapp/ropen3. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

License

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

Code of Conduct

Everyone interacting in the ROpen3 project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.