Ruby 2.0 RPM - Rails can't find psych

[Peter Deffendol]

Hi,

I rebuilt the ruby-2.0.0.0-6 packages on CentOS 6 (requiring a couple of slight modifications to the spec file) and ran into some trouble:

[pete@centos railstest]$ ./script/rails c

/usr/share/ruby/yaml.rb:6:in `<top (required)>':
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
/usr/share/ruby/yaml.rb:7:in `require': cannot load such file -- psych (LoadError)
    from /usr/share/ruby/yaml.rb:7:in `<top (required)>'
<snip>

I have all of the relevant packages installed - rubygem-psych, libyaml (from EPEL).

If I run an irb session, it loads correctly:

[pete@centos ~]$ irb
irb(main):001:0> require 'yaml'
=> true

I'm not sure where to look.  The load path is identical in both situations (puts $:)

/usr/local/share/ruby/site_ruby
/usr/local/lib64/ruby/site_ruby
/usr/share/ruby/vendor_ruby
/usr/lib64/ruby/vendor_ruby
/usr/share/rubygems
/usr/share/ruby
/usr/lib64/ruby/

Can anyone confirm if this also occurs on the Fedora-built packages, and have any idea as to why this is happening?

Thanks!

Pete

--
Pete Deffendol
[e-mail]

[Vít Ondruch]

Dne 27.3.2013 00:28, Peter Deffendol napsal(a):
> Hi,
>
> I rebuilt the ruby-2.0.0.0-6 packages on CentOS 6 (requiring a couple of slight modifications to the spec file) and ran into some trouble:
>
> [pete@centos railstest]$ ./script/rails c
>
> /usr/share/ruby/yaml.rb:6:in `<top (required)>':
> It seems your ruby installation is missing psych (for YAML output).
> To eliminate this warning, please install libyaml and reinstall your ruby.
> /usr/share/ruby/yaml.rb:7:in `require': cannot load such file -- psych (LoadError)
>    from /usr/share/ruby/yaml.rb:7:in `<top (required)>'
>
> <snip>
>
> I have all of the relevant packages installed - rubygem-psych, libyaml (from EPEL).
>
> If I run an irb session, it loads correctly:
>
> [pete@centos ~]$ irb
> irb(main):001:0> require 'yaml'
> => true
>
> I'm not sure where to look.  The load path is identical in both situations (puts $:)
>
> /usr/local/share/ruby/site_ruby
> /usr/local/lib64/ruby/site_ruby
> /usr/share/ruby/vendor_ruby
> /usr/lib64/ruby/vendor_ruby
> /usr/share/rubygems
> /usr/share/ruby
> /usr/lib64/ruby/
>
> Can anyone confirm if this also occurs on the Fedora-built packages, and have any idea as to why this is happening?

This seems to be Bundler issue IMO. You should add Psych into your Gemfile.

Vít.

[Peter Deffendol]

On Mar 27, 2013, at 2:10 AM, Vít Ondruch  wrote:
> This seems to be Bundler issue IMO. You should add Psych into your Gemfile.

Thanks Vit - I had that thought as well.  However, I get a slightly different message after adding "gem 'psych'" to the Gemfile, running "bundle install", and then trying the Rails console:

[pete@centos yamltest]$ ./script/rails c
/usr/share/ruby/yaml.rb:6:in `<top (required)>':
It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.
/usr/share/gems/gems/psych-2.0.0/lib/psych.rb:1:in `require': cannot load such file -- psych.so (LoadError)

Pete

--
Pete Deffendol
[e-mail]

[Vít Ondruch]

Dne 27.3.2013 14:35, Peter Deffendol napsal(a):
> On Mar 27, 2013, at 2:10 AM, Vít Ondruch <[e-mail] 
> > wrote:
> > This seems to be Bundler issue IMO. You should add Psych into your 
> > Gemfile.
>
> Thanks Vit - I had that thought as well.  However, I get a slightly 
> different message after adding "gem 'psych'" to the Gemfile, running 
> "bundle install", and then trying the Rails console:
>
> [pete@centos yamltest]$ ./script/rails c
> /usr/share/ruby/yaml.rb:6:in `<top (required)>':
> It seems your ruby installation is missing psych (for YAML output).
> To eliminate this warning, please install libyaml and reinstall your ruby.
> /usr/share/gems/gems/psych-2.0.0/lib/psych.rb:1:in `require': cannot 
> load such file -- psych.so (LoadError)

You must use Fedora's Bundler. It is due to filesystem layout.

Vít
> Pete
>
> --
> Pete Deffendol
> [e-mail]
>
> ruby-sig mailing list
> [e-mail]
> https://admin.fedoraproject.org/mailman/listinfo/ruby-sig

[Peter Deffendol]

On Mar 27, 2013, at 8:07 AM, Vít Ondruch  wrote:
> Dne 27.3.2013 14:35, Peter Deffendol napsal(a):
> > [pete@centos yamltest]$ ./script/rails c
> > /usr/share/ruby/yaml.rb:6:in `<top (required)>':
> > It seems your ruby installation is missing psych (for YAML output).
> > To eliminate this warning, please install libyaml and reinstall your ruby.
> > /usr/share/gems/gems/psych-2.0.0/lib/psych.rb:1:in `require': cannot load such file -- psych.so (LoadError)
>
> You must use Fedora's Bundler. It is due to filesystem layout.

OK, I tried the patch in the Fedora bundler package.  That takes care of it.

Pete

--
Pete Deffendol
[e-mail]

[Vít Ondruch]

Dne 27.3.2013 16:22, Peter Deffendol napsal(a):
> On Mar 27, 2013, at 8:07 AM, Vít Ondruch <[e-mail] 
> > wrote:
> > Dne 27.3.2013 14:35, Peter Deffendol napsal(a):
> > > [pete@centos yamltest]$ ./script/rails c
> > > /usr/share/ruby/yaml.rb:6:in `<top (required)>':
> > > It seems your ruby installation is missing psych (for YAML output).
> > > To eliminate this warning, please install libyaml and reinstall your 
> > > ruby.
> > > /usr/share/gems/gems/psych-2.0.0/lib/psych.rb:1:in `require': cannot 
> > > load such file -- psych.so (LoadError)
> >
> > You must use Fedora's Bundler. It is due to filesystem layout.
>
> OK, I tried the patch in the Fedora bundler package.  That takes care 
> of it.

Yes, that is another possibility :)

Vít