How to debug ruby code

Question

I want to debug my Ruby code using the Ruby Mine IDE. In the drop down list Select Run/Debug Configuration , I chose My Project - development , then pressed Shift + F9 . The Debugger started well, but did not stop at my break points. Why?

Answer 1

Ensure your Gemfile contains this:

gem 'linecache19', '>= 0.5.13', :git => 'https://github.com/robmathews/linecache19 0.5.13.git'
gem 'ruby-debug-base19x', '>= 0.11.30.pre12'
gem 'ruby-debug-ide', '>= 0.4.17.beta17'

maybe for details see that answer

Answer 2

Try using command line debugger: https://github.com/cldwalker/debugger

See also

• http://railscasts.com/episodes/54-debugging-with-ruby-debug
• http://railscasts.com/episodes/54-debugging-ruby-revised

Answer 3

pry is an interactive Ruby shell (or "REPL"), which can be used as a debugger (best combined with the pry-nav and pry-stack_explorer gems). It has a lot of features which make it much nicer to use than the debugger gem. For general exploration and experimentation with Ruby code, it's also nicer to use than irb .

For more info:

http://pryrepl.org/

https://github.com/pry/pry

After adding pry to your Gemfile and bundling, you can add a "breakpoint" with the following Ruby code: binding.pry