With the release of 0.9.9, we've settled on mostly-final values for a
number of CONFIG properties. They report things like Java version
targeted for a build, Java version on which JRuby was run, and so on.
There are two prominent uses of these data: RubyGems and Tattle.
RubyGems uses it to help determine source and target platform
information when installing gems. This will be more important in the
future. Tattle uses it to report information about what platforms and
versions people are running Ruby on.
And Tattle works quite well in JRuby.
So I think it would be useful to start showing that JRubyists are out
there by tattling your JRuby install. All you have to do is "gem install
tattle", accept the dependencies, and then run "jruby -S tattle".
Ideally people would only do this with 0.9.9, since the previous CONFIG
values are not ideal. But I would just love to see numbers of folks out
there running JRuby, and who's running on what Java versions.
The tattle information is available here:
http://tattle.rubygarden.org/
And Chad Fowler's original post about it is here:
http://www.chadfowler.com/2007/1/8/tattle-the-ruby-census
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