# Rdoc-data 2.5.1 Released

**URL:** <https://www.ruby-forum.com/t/rdoc-data-2-5-1-released/186158>\
**Category:** Ruby\
**Created:** [April 1, 2010, 10:21am UTC](https://www.ruby-forum.com/t/rdoc-data-2-5-1-released/186158 "2010-04-01T10:21:33Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![miracleofmagick](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/71c47a/32.png) [@miracleofmagick](https://www.ruby-forum.com/u/miracleofmagick)\
**Post date:** [April 1, 2010, 10:21am UTC](https://www.ruby-forum.com/t/rdoc-data-2-5-1-released/186158/1 "2010-04-01T10:21:33Z")

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rdoc-data contains core ri data for use with RDoc 2.5

To install run `gem install rdoc-data` followed by  
`rdoc-data`.

This will allow you to look up RDoc for core and standard library files  
like Kernel, Array or Date.

rdoc-data contains ri information for Ruby 1.8.6, 1.8.7 and 1.9.1.

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**Author:** ![miracleofmagick](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/71c47a/32.png) [@miracleofmagick](https://www.ruby-forum.com/u/miracleofmagick)\
**Post date:** [April 7, 2010, 12:51am UTC](https://www.ruby-forum.com/t/rdoc-data-2-5-1-released/186158/2 "2010-04-07T00:51:08Z")

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> This will allow you to look up RDoc for core and standard library files  
> like Kernel, Array or Date.
> 
> rdoc-data contains ri information for Ruby 1.8.6, 1.8.7 and 1.9.1.

One feature request would be to be able to pull down the patch number of  
the ruby version you’re on (or SVN checkout number). Or maybe an option  
to pull from trunk. Then you could get more up to date docs for trunk,  
since they seem to be most up to date there.  
Thoughts?  
-rp

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**Author:** ![miracleofmagick](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/71c47a/32.png) [@miracleofmagick](https://www.ruby-forum.com/u/miracleofmagick)\
**Post date:** [April 9, 2010, 1:51am UTC](https://www.ruby-forum.com/t/rdoc-data-2-5-1-released/186158/3 "2010-04-09T01:51:01Z")

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Eric H. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> rdoc-data contains core ri data for use with RDoc 2.5
> 
> To install run `gem install rdoc-data`  
> followed by `rdoc-data`.

$ rdoc-data  
/Library/Ruby/Site/1.8/rubygems.rb:230:in `activate': can't activate rdoc (~> 2.5, runtime) for ["rdoc-data-2.5.1"], already activated rdoc-2.4.3 for ["rdoc_osx_dictionary-1.3.1"] (Gem::LoadError) from /Library/Ruby/Site/1.8/rubygems.rb:246:in `activate’  
from /Library/Ruby/Site/1.8/rubygems.rb:245:in `each' from /Library/Ruby/Site/1.8/rubygems.rb:245:in `activate’  
from /Library/Ruby/Site/1.8/rubygems.rb:1056:in `gem’  
from /usr/bin/rdoc-data:18  
$ rdoc --version  
rdoc 2.4.3

So is the problem that it isn’t seeing rdoc 2.5.1? How do I get to see  
this? It is installed. Somewhere…

m.

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<div class="post-metadata">

**Author:** ![miracleofmagick](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/71c47a/32.png) [@miracleofmagick](https://www.ruby-forum.com/u/miracleofmagick)\
**Post date:** [April 9, 2010, 1:04am UTC](https://www.ruby-forum.com/t/rdoc-data-2-5-1-released/186158/4 "2010-04-09T01:04:47Z")

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On Apr 6, 2010, at 15:51, Roger P. wrote:

> > This will allow you to look up RDoc for core and standard library files  
> > like Kernel, Array or Date.
> > 
> > rdoc-data contains ri information for Ruby 1.8.6, 1.8.7 and 1.9.1.
> 
> One feature request would be to be able to pull down the patch number of  
> the ruby version you’re on (or SVN checkout number).

rdoc-data is a Rakefile that uses multiruby and a small installer. I  
chose the latest patchlevels of 1.8.6, 1.8.7 and 1.9.1, but if you  
wanted a different patchlevel you could unpack the gem and generate ri  
data for whichever version and patchlevel you choose.

> Or maybe an option to pull from trunk. Then you could get more up to date docs for trunk,  
> since they seem to be most up to date there.

There’s no need to include documentation from trunk because it has RDoc  
2.5. It also would have documentation for methods and features which  
don’t exist in previous versions.

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**Author:** ![miracleofmagick](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/71c47a/32.png) [@miracleofmagick](https://www.ruby-forum.com/u/miracleofmagick)\
**Post date:** [June 10, 2010, 7:13pm UTC](https://www.ruby-forum.com/t/rdoc-data-2-5-1-released/186158/5 "2010-06-10T19:13:19Z")

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> rdoc-data contains ri information for Ruby 1.8.6, 1.8.7 and 1.9.1.

As a note, I see that rdoc-data’s gemspec file is 1.4M

This takes quite awhile to load. You may want to consider something  
other distribution mechanism.  
-r