Allow specifying a group of opal gems to require from

[illogikal]

I am developing an opal app with rack, and I have organized my gemfile like this.

gem 'normal gem'

group :opal, :development, :test, :production do
  gem 'opal gem'
  gem 'opal gem'
end

Tlhis alows me to easily and clearly specify which gems I want in my opal compilation.

https://github.com/cj/opal-webpack/blob/master/lib/getRubyMetadata.js#L22

  if (useBundler) {
    if (env.RAILS_ENV) {
      // using rails runner to try and take advantage of spring
      return bundlerExecute(`rails runner "${rubyCode}"`)
    }
    else {
      return bundlerExecute(`ruby -e "Bundler.require; ${rubyCode}"`)
      return bundlerExecute(`bundle exec ruby -e "Bundler.require(:opal); ${rubyCode}"`)
    }
  }

I have had to enable bundler to use opal, and have updated the line thusly
return bundlerExecute(`ruby -e "Bundler.require; ${rubyCode}"`)
to:
return bundlerExecute(`bundle exec ruby -e "Bundler.require(:opal); ${rubyCode}"`)
I added the bundle exec, because it was not working for me previously.

I think that setting a gemfile group is a good way to specify opal gems, and perhaps this could also become an opal-webpack config option?

[wied03]

Sorry, have had a lot going on. @cj - You still around?