Using RCov with JRuby

Ruby JRuby
1

Hi,

To begin with, congratulations and thanks to all those involved in
getting JRuby in its current state. It’s amazing how much you have
achieved in just a few years. Hats off.

I’m trying to get Rcov running in conjunction with my JRuby based specs.
The instructions on the JRuby wiki [1] are very clear, but fail me at
this step:

jruby -S rake gem

with a

rake aborted!
Don’t know how to build task ‘gem’

Probably some simple setup issue. Any hints are welcome.

Menno

[1] http://kenai.com/projects/jruby/pages/RCov

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2

Hi.

On May 23, 2009, at 9:25 AM, Menno Jonkers wrote:

[1] http://kenai.com/projects/jruby/pages/RCov

I don’t know why the rake task is not there, but you can use gem
directly against gemspec:

$ jruby -S gem build rcov.gemspec
JRuby limited openssl loaded. gem install jruby-openssl for full
support.
http://wiki.jruby.org/wiki/JRuby_Builtin_OpenSSL
WARNING: no rubyforge_project specified
Successfully built RubyGem
Name: rcov
Version: 0.8.2.1
File: rcov-0.8.2.1.gem

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3

Hirotsugu A. wrote:

I don’t know why the rake task is not there, but you can use gem
directly against gemspec:
[…]

That did it! Thanks a lot.

Menno

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4

Menno Jonkers wrote:

Hirotsugu A. wrote:

I don’t know why the rake task is not there, but you can use gem
directly against gemspec:
[…]

That did it! Thanks a lot.

FWIW, if you want to run the jruby fork of RCov, you can just:

gem install --source http://gems.github.com jruby-rcov

We’re hoping to keep that a maintained version into the future.

  • Charlie

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