possible to load nokogiri in jruby without install

问题:

i need a way to run following nokogiri script

#parser.rb
require 'nokogiri'

def parseit()
//...
end

and call the parseit() while running below main.rb in jruby

#main.rb
require 'parser'

parseit()

Of course the problem is jruby cannot find 'nokogiri' as I have not installed it aka nokogiri-java via jruby -S gem install nokogiri

The reason is there is some bug I found in nokogiri running under Jruby, so I have only installed nokogiri on Ruby not Jruby. The parser.rb runs perfectly under just Ruby.

So my objective is to be able to run parseit() without having to install nokogiri on Jruby!

回答1:

Nokogiri works just fine under JRuby (1.4.0 has issues, but the 1.4.1 version of the gem has been working perfect for me).

jruby -S gem install nokogiri

and if you have issues with platform detection you can force it:

jruby -S gem install nokogiri --platform=java

You shouldn't have any issues using it with JRuby, if you are then maybe you're stack isn't right.

回答2:

Nokogiri should work under FFI in JRuby. See http://www.ruby-forum.com/topic/186274

回答3:

Nokogiri should just work with JRuby via FFI, so it seems to me that the best course of action is just figure out why installing nokogiri in JRuby doesn't work for you.

What kind of problems you see? What JRuby version? What platform?

回答4:

Here's an example of a situation where it would appear that the Java implementation of Nokogiri is producing different results from the C version, which is causing the loofah gem to fail a bunch of JRuby tests. This is blocking the ability of the Redmine developers from supporting JRuby.

https://github.com/flavorjones/loofah/issues/88#issuecomment-122747924