[jruby-user] Issue w/ rspec-rails

[Robert Sanford]

Running OS X Snow Leopard

I installed JRuby to /opt/local/jruby

I put /opt/local/jruby/bin on my path ahead of /opt/local/bin which has my Ruby 1.8.7 installed via MacPorts (or is that the base install?).

jruby gem install rails

jruby gem install rspec

jruby gem install rspec-rails

All of those work just fine and dandy. Now I get to the point in the instructions for installing rspec-rails (https://github.com/rspec/rspec-rails#readme) that says:

Install

gem install rspec-rails

This installs the following gems:

rspec

rspec-core

rspec-expectations

rspec-mocks

rspec-rails

Configure:

Add rspec-rails to the :test and :development groups in the Gemfile:

group :test, :development do

  gem "rspec-rails", "~> 2.4"

end

It needs to be in the :development group to expose generators and rake tasks without having to type RAILS_ENV=test.

Now you can run:

script/rails generate rspec:install

This adds the spec directory and some skeleton files, including the "rake spec" task.

Issue #1 - When it says "Add rspec-rails to the :test and :development groups in the Gemfile:" to which Gemfile is it referring? I'm assuming that it means rspec-rails and not one of the Gemfiles from the other gems (rspec, rspec-core, rspec-expectations, etc.) although it could mean the rspec gem but the "gem install" was for rspec-rails so I'm going with that one. Let me know if I'm wrong there please.

Issue #2 - When I run "which script" I get /usr/bin rather than in the JRuby directory so I'm a bit worried about that. Is "script" a generic command or is it a Ruby and/or Rails specific command and that indicates that I have either a path or installation problem?

Issue #3 - To be safe I run "jruby script/rails generate rspec:install" and I get 

Macintosh-2:gems wobbet$ jruby script/rails rspec:install

Error opening script file: /opt/local/jruby/lib/ruby/gems/1.8/gems/script/rails (No such file or directory)

I'm hoping that means I'm not having an issue with my path by explicitly invoking jruby at the front although I'm not certain. Either way I have an error that I don't understand.

Any help is appreciated.

Many thanks!!!

rjsjr

[Jeffrey Lembeck]

Hey Robert,

On [Monday, January 24] at 5:50 AM, Robert Sanford wrote:

Running OS X Snow Leopard

I installed JRuby to /opt/local/jruby

I put /opt/local/jruby/bin on my path ahead of /opt/local/bin which has my Ruby 1.8.7 installed via MacPorts (or is that the base install?).

jruby gem install rails

jruby gem install rspec

jruby gem install rspec-rails

All of those work just fine and dandy. Now I get to the point in the instructions for installing rspec-rails (https://github.com/rspec/rspec-rails#readme) that says:

 Ruby 1.8.7 is the base install on Snow Leopard.  If you're moving into using JRuby, I can't recommend using RVM enough, especially on Snow Leopard, as it is just dead simple.  RVM allows you to switch between versions of Ruby and it manages your gems along the way, without you having to worry about path problems.

Install

gem install rspec-rails

This installs the following gems:

rspec

rspec-core

rspec-expectations

rspec-mocks

rspec-rails

Configure:

Add rspec-rails to the :test and :development groups in the Gemfile:

group :test, :development do

  gem "rspec-rails", "~> 2.4"

end

It needs to be in the :development group to expose generators and rake tasks without having to type RAILS_ENV=test.

Now you can run:

script/rails generate rspec:install

This adds the spec directory and some skeleton files, including the "rake spec" task.

Issue #1 - When it says "Add rspec-rails to the :test and :development groups in the Gemfile:" to which Gemfile is it referring? I'm assuming that it means rspec-rails and not one of the Gemfiles from the other gems (rspec, rspec-core, rspec-expectations, etc.) although it could mean the rspec gem but the "gem install" was for rspec-rails so I'm going with that one. Let me know if I'm wrong there please.

Gemfile is actually a file inside of your generated rails project that is used by Bundler in order to manage your gems, their dependencies, and to keep your executables within the context of the project.

 

Issue #2 - When I run "which script" I get /usr/bin rather than in the JRuby directory so I'm a bit worried about that. Is "script" a generic command or is it a Ruby and/or Rails specific command and that indicates that I have either a path or installation problem?

script is a rails command that doesn't get used anymore with Rails 3.   In order to run the equivalent of generate these days, it is: rails g, or for jruby, jruby -S rails g.  The -S is really nice there, as it is a flag that tells jruby  to look for the script in bin or using PATH environment variable.

Issue #3 - To be safe I run "jruby script/rails generate rspec:install" and I get 

Macintosh-2:gems wobbet$ jruby script/rails rspec:install

Error opening script file: /opt/local/jruby/lib/ruby/gems/1.8/gems/script/rails (No such file or directory)

I'm hoping that means I'm not having an issue with my path by explicitly invoking jruby at the front although I'm not certain. Either way I have an error that I don't understand.

The fixes up above should help with this. Once again, I can't recommend RVM enough. Once you have it installed, you can use: rvm install jruby-1.6.0.rc1 (to grab the latest release candidate) or just rvm install jruby and it will properly install jruby on your system.  At that point, you can just type rvm use jruby(or jruby-1.6.0.rc1) in order to switch to that version of ruby.

Information is here: http://rvm.beginrescueend.com/

Also, information on Bundler can be found here: http://gembundler.com/