How do I drop to the IRB prompt from a running script?
you can use ruby-debug to get access to irb
require 'rubygems'
require 'ruby-debug'
x = 23
puts "welcome"
debugger
puts "end"
when program reaches debugger you will get access to irb.
Pry (an IRB alternative) also lets you do this, in fact it was designed from the ground up for exactly this use case :)
It's as easy as putting binding.pry at the point you want to start the session:
require 'pry'
x = 10
binding.pry
And inside the session:
pry(main)> puts x
=> 10
Check out the website: http://pry.github.com
Pry let's you:
- drop into a session at any point in your code
- view method source code
- view method documentation (not using RI so you dont have to pre-generate it)
- pop in and out of different contexts
- syntax highlighting
- gist integration
- view and replay history
- open editors to edit methods using
edit obj.my_methodsyntax
A tonne more great and original features