Question

I have a gem. It can optionally be run as a command line app myapp_cli, or as an app with a local web ui myapp_web.

When working on my app, I can run bundle exec myapp_cli for the command line UI, or
I can run bundle exec rackup for the web UI.

Now I’d like bin/myapp_web to essentially be a synonym for rackup. So when someone installs my gem, they can just run myapp_cli or myapp_web.

Is there a nice way of doing that?

I can make my myapp_web look like

Rack::Handler::WEBrick.run(
      App.new,
      :Port => 9000
  )

but that doesn’t give me all the goodies that rackup gives me.

Answer 1

All I had to do was browse the source.

require 'rack'
Rack::Server.start