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jruby+truffle setup creates gems in 'ruby' directory but jruby looks in 'jruby' directory #3569

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tinco opened this issue Dec 28, 2015 · 6 comments
Closed

jruby+truffle setup creates gems in 'ruby' directory but jruby looks in 'jruby' directory #3569

tinco opened this issue Dec 28, 2015 · 6 comments
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@pitr-ch
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@tinco
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tinco commented Dec 28, 2015

When running a truffle project I get the following exception:

  cannot load such file -- rack (LoadError)

Steps to reproduce:

  1. Add a Gemfile to project, enter 'rack' gem
  2. Run jruby+truffle setup, it should create a .jruby+truffle_bundle/ruby directory
  3. Add a ruby file that does require 'rack'
  4. Have a wrapper around jruby nightly like so: echo 'exec /jruby-master/bin/jruby -X+T -r "./.jruby+truffle_bundle/bundler/setup.rb" "$@"' > /jruby-master/bin/ruby && chmod +x /jruby-master/bin/ruby
  5. Use it to run the ruby file, see the error
  6. Rename the gem directory to jruby, error should disappear

I wrote these steps from heart, it might be that I missed something crucial. There's a docker environment that had the problem here: phusion/truffle-test@6395e74
@chrisseaton
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I believe this happens because the tool is being run by a system Ruby rather than JRuby - but the tool shouldn't let that happen.

As @tinco says the workaround is to rename .jruby+truffle_bundle/ruby to .jruby+truffle_bundle/jruby, but there may be other symptoms of the system Ruby being used to run the tool, such as the wrong version of gems being installed.

Ping @pitr-ch

@chrisseaton chrisseaton added this to the truffle-dev milestone Dec 28, 2015
@pitr-ch
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pitr-ch commented Jan 4, 2016

Hello @tinco,
let my try to help, couple of questions first:

(2.) how do you run jruby+truffle setup ? I couldn't find it in the Dockerfile.
(4.) why wrapper is used instead of jruby+truffle run a_file.rb ?

I've tried to reproduce your steps (without docker) but the wrapper worked for me in setup environment.

@pitr-ch
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pitr-ch commented Jan 4, 2016

Ah, @nirvdrum helped me to figure out why do you see ruby instead of jruby, fix is coming. For now switching your env. to jruby-master before running jruby+truffle setup should help.

@pitr-ch
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pitr-ch commented Jan 4, 2016

jruby+truffle setup is fixed to use correct bundler.

@tinco
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tinco commented Jan 5, 2016

Good work and thanks 👍

@chrisseaton
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Can this be closed?

@tinco tinco closed this as completed Jan 10, 2016
@enebo enebo added this to the Non-Release milestone Dec 7, 2017
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