ruby-debug with Ruby 1.9.3?

Question

I just updated to Ruby 1.9.3p0 and Rails 3.1.1. Now when I try to launch the server, it complains that I should install ruby-debug, even though it\'s already in

Answer 1

Someone else posted in a comment to try Pry, which is what I did. This is what's necessary for Rails:

# Gemfile
gem 'pry-rails'


# In your Rails Project where you want a 'debugger'

puts 'i want to insert some code between this'

binding.pry

puts 'and this'

Immediately after installing I notice my .irbrc doesn't load, so I don't get pretty console output. I also added this to my '~/.pryrc'

# setting up pry to have irb helpers like reload!
if defined?(Rails) && Rails.env
  extend Rails::ConsoleMethods
end

Pry has some nice features that I've wanted to check out, and I may yet return to ruby-debug once there's a simple way to integrate it into a Rails project for Ruby 1.9.3. I can run the curl command from the other answers, but this is something I'll have to point my teammates to for our Rails project, so it doesn't scale well IMO.

Answer 2

BTW, if you use the newest patch for ruby1.9.3 (falcon, https://gist.github.com/1688857), use following commands

wget http://rubyforge.org/frs/download.php/75414/linecache19-0.5.13.gem
wget http://rubyforge.org/frs/download.php/75415/ruby-debug-base19-0.11.26.gem

gem install linecache19-0.5.13.gem
## with rvm: 
gem install ruby-debug-base19-0.11.26.gem -- --with-ruby-include=$HOME/.rvm/src/ruby-1.9.3-p0-falcon
## with rbenv (this is a guess): 
gem install ruby-debug-base19-0.11.26.gem -- --with-ruby-include=$HOME/.rbenv/source/ruby-1.9.3-p0-falcon

Answer 3

Update (April 28, 2012)

Try the new debugger gem as a replacement for ruby-debug.

^{(credit to @ryanb)}

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Update (March 2, 2012)

Installation of linecache19 and ruby-debug-base19 can be easily done with:

bash < <(curl -L https://raw.github.com/gist/1333785)

^{(credit to @fredostarr)}

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Original answer

Have you looked at ruby-debug19 on ruby-1.9.3-preview1?

Here's a temporary solution: http://blog.wyeworks.com/2011/11/1/ruby-1-9-3-and-ruby-debug

Excerpt from the site:

First download linecache19-0.5.13.gem and ruby-debug-base19-0.11.26.gem from http://rubyforge.org/frs/?group_id=8883, then …

$ gem install linecache19-0.5.13.gem 
Building native extensions.  This could take a while...
Successfully installed linecache19-0.5.13
1 gem installed
$ gem install ruby-debug-base19-0.11.26.gem -- --with-ruby-include=/Users/santiago/.rbenv/source/ruby-1.9.3-p0  
Building native extensions.  This could take a while...
Successfully installed ruby-debug-base19-0.11.26
1 gem installed
$ irb
irb(main):001:0> require 'ruby-debug'
=> true