Can't using Ruby Gems

[yurifarod]

Hello everybody,
Maybe this doubt seems to be very simple, but I'm caught in there a lot of time.
First i follow the steps from the samples using de JRuby to install a gem in the Ruby Extension directory (inside and outsid of directory "../data-integration\plugins\ruby-for-pentaho-kettle\gems").
In this case i receive the Error message: " org.jruby.embed.EvalFailedException: (LoadError) no such file to load -- chronic"
I tryin change RUBY_GEM_HOME and GEM_HOME like the Sample, but in this case the Ruby Extension crash and not work.
I need to point out that i use the Extension in many projects in Production Environment.

If anybody have a little video, images or a clear explanation of how you configure the environment to use Gems I would be very grateful.
Thank u everybody.

[yurifarod]

Another information i'm using Windows 10, is this a impediment?

[slawo-ch]

Which gem is it that you're trying to install?

[yurifarod]

I need use one script with the gem 'classifier-reborn', but i tried tests with 'chronic' (when i followed the steps of sample) and i cant't use this gem either.

[slawo-ch]

I was able to reproduce the issue. It seems JRuby changed the way they handle gem paths at some point. I'm looking into it. In the meantime, you can export GEM_HOME=/path/to/your/gems in spoon.sh as a workaround. If you're on windows you'll probably need to set GEM_HOME as an environment variable.

The JRuby runtime picks up on that environment variable even when running a scripting container.

[slawo-ch]

I've released version 1.3.5 that upgrades JRuby and fixes setting the default GEM_HOME. Give it a spin and see if it works.

[yurifarod]

I replaced the vesion 1.3.4 for this. My other transformation with Ruby still working, but the script with "require 'chronic'" still not working..
This is the full message of error:

"2018/12/20 10:31:10 - Ruby Script.0 - ERROR (version 7.1.0.0-12, build 1 from 2017-05-16 17.18.02 by buildguy) : Unexpected error
2018/12/20 10:31:10 - Ruby Script.0 - ERROR (version 7.1.0.0-12, build 1 from 2017-05-16 17.18.02 by buildguy) : org.pentaho.di.core.exception.KettleException:
2018/12/20 10:31:10 - Ruby Script.0 - org.jruby.embed.EvalFailedException: (LoadError) no such file to load -- chronic
2018/12/20 10:31:10 - Ruby Script.0 - (LoadError) no such file to load -- chronic
2018/12/20 10:31:10 - Ruby Script.0 -
2018/12/20 10:31:10 - Ruby Script.0 - at com.twineworks.kettle.ruby.step.execmodels.SimpleExecutionModel.onProcessRow(SimpleExecutionModel.java:602)
2018/12/20 10:31:10 - Ruby Script.0 - at com.twineworks.kettle.ruby.step.RubyStep.processRow(RubyStep.java:51)
2018/12/20 10:31:10 - Ruby Script.0 - at org.pentaho.di.trans.step.RunThread.run(RunThread.java:62)
2018/12/20 10:31:10 - Ruby Script.0 - at java.lang.Thread.run(Thread.java:748)
2018/12/20 10:31:10 - Ruby Script.0 - Caused by: org.jruby.embed.EvalFailedException: (LoadError) no such file to load -- chronic
2018/12/20 10:31:10 - Ruby Script.0 - at org.jruby.embed.internal.EmbedEvalUnitImpl.run(EmbedEvalUnitImpl.java:131)
2018/12/20 10:31:10 - Ruby Script.0 - at com.twineworks.kettle.ruby.step.execmodels.SimpleExecutionModel.onProcessRow(SimpleExecutionModel.java:580)
2018/12/20 10:31:10 - Ruby Script.0 - ... 3 more
2018/12/20 10:31:10 - Ruby Script.0 - Caused by: org.jruby.exceptions.LoadError: (LoadError) no such file to load -- chronic
2018/12/20 10:31:10 - Ruby Script.0 - at org.jruby.RubyKernel.require(org/jruby/RubyKernel.java:983)
2018/12/20 10:31:10 - Ruby Script.0 - at RUBY.require(uri:classloader:/META-INF/jruby.home/lib/ruby/stdlib/rubygems/core_ext/kernel_require.rb:59)
2018/12/20 10:31:10 - Ruby Script.0 - at RUBY.

(Ruby Script:1)"

[slawo-ch]

You do have the chronic gem installed though, right?

[yurifarod]

Off course!
"irb(main):001:0> require 'chronic'
=> true"

[slawo-ch]

Hmm, seems like I had my GEM_HOME exported manually when I verified the last solution. Let me look at it again. In the meantime, having GEM_HOME set as an environment variable seems to work as a workaround.

[slawo-ch]

Just released 1.3.6, would you like to give that a test?

[yurifarod]

Don't work yet.
I use the CPython from marketplace to resolve my problem (because it was urgent), but I really wish I could use yours Ruby App to futures problem.
I'm a Ruby entusiast and developer a many time.