Which Http Web Server How to Use to Debug Ruby Code Using Rubymine 3.0.1

Is there a way to tell RubyMine to not use webrick?

Recent RubyMine versions allow to specify what web server to use in the Rails Run/Debug configuration:

rails 3, why I can't use command line at ubuntu?

I don't believe your rvm has been setup correctly. For sake of simplicity, let's start from the beginning following the instructions here:

http://beginrescueend.com/rvm/install/

Install in command line.

user$ bash -s stable < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer )

Open your .bashrc folder in your home directory.

user$ vim .bashrc

Edit and add:

[[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function

Source your .bashrc file and close the terminal

user$ source ~/.bashrc
user$ exit

Reopen terminal and check if rvm is working.

user$ type rvm | head -1

If it returns

rvm is a function

We're good. Check if you have all of the prerequisites:

rvm requirements

Install as necessary. Pick your favorite flavor of ruby (it seems like it is 1.8.7, if so follow the exact command or replace it with your choice).

rvm install 1.8.7

When its done,

rvm use 1.8.7 --default

If this didn't work, please update post by running

which ruby

How to fix Your Ruby version is 1.9.3, but your Gemfile specified 2.0.0

If you run ruby -v you're going to see that you've installed Ruby 1.9.3, but the first line in your Gemfile specifies that you want to use Ruby 2.0.0.

You should either install Ruby 2.0.0 or change the first line in your Gemfile to specify Ruby 1.9.3.

sample of Gemfile:

source 'https://rubygems.org'
ruby "1.9.3"

gem 'pry'

gem 'pry-nav'

# Use with command-line debugging, but not RubyMine
#gem 'debugger'

gem 'bundler'

How to debug Ruby scripts

Use Pry (GitHub).

Install via:

$ gem install pry
$ pry

Then add:

require 'pry'; binding.pry

into your program.

As of pry 0.12.2 however, there are no navigation commands such as next, break, etc. Some other gems additionally provide this, see for example pry-byebug.

Bundler::GemNotFound: Could not find rake-10.3.2 in any of the sources

bundle config set --local path 'vendor/cache'

generally fixes it as that is the more common problem. Basically, your bundler path configuration is messed up. See their documentation (first paragraph) for where to find those configurations and change them manually if needed.

Debugging with Torquebox and RubyMine

According to this comment it's already implemented and will be available in RubyMine 5.0 and next IDEA plug-in.

You can already try it in RubyMine 5.0 EAP.

Is it possible to do ruby-debug on a remote server?

ruby-debug has had out-of-process debugging for a long while. In fact the code mentioned in that Noufal Ibrahim cites, is using the same underlying common code.

However I've just added some documentation describing how it works in the reference manual.

See http://bashdb.sourceforge.net/ruby-debug.html#Remote-Debugging and http://bashdb.sourceforge.net/ruby-debug.html#Out_002dof_002dprocess-execution-options

How do I view the HTTP response to an ActiveResource request?

It's easy. Just look at the response that comes back. :)

Two options:

• You have the source file on your computer. Edit it. Put a puts response.inspect at the appropriate place. Remember to remove it.
• Ruby has open classes. Find the right method and redefine it to do exactly what you want, or use aliases and call chaining to do this. There's probably a method that returns the response -- grab it, print it, and then return it.

Here's a silly example of the latter option.

# Somewhere buried in ActiveResource:
class Network
  def get
    return get_request
  end

  def get_request
    "I'm a request!"
  end
end

# Somewhere in your source files:
class Network
  def print_request
    request = old_get_request
    puts request
    request
  end
  alias :old_get_request :get_request
  alias :get_request :print_request
end

Imagine the first class definition is in the ActiveRecord source files. The second class definition is in your application somewhere.

$ irb -r openclasses.rb 
>> Network.new.get
I'm a request!
=> "I'm a request!"

You can see that it prints it and then returns it. Neat, huh?

(And although my simple example doesn't use it since it isn't using Rails, check out alias_method_chain to combine your alias calls.)

Debugging with Torquebox and RubyMine

According to this comment it's already implemented and will be available in RubyMine 5.0 and next IDEA plug-in.

You can already try it in RubyMine 5.0 EAP.

---

Related Topics