From: Lothar Scholz <mailinglists@...>
Date: 2004-11-24T11:16:51+09:00
Subject: 3 Errors in Ruby Gems

Hello ,

While tracking a bug report for ArachnoRuby i found three errors in the
0.8.1 gems code. My program sets the environment "GEM_PATH".

1) If i use a normal windows path with backslashes in the environment
variable, then this does not work, because Dir::glob will fail.
So please convert all '\' to '/' this before feeding glob.

2) For some reasons Gem::@gem_path will have "/lib/ruby/gems/1.8" after
the directory that is given in GEM_PATH. Also @gem_home is set to this
wrong directory. Don't think that it is a good default value on
windows.

3) Error in Gem::Specification::build_paths

   def self.build_paths
      @paths = []
      ::Gem.path.each do |gempath|
        @specs = Dir.glob("#{gempath}/specifications/*.gemspec").collect { |specfile| eval(File.read(specfile)) }.sort!
        @specs.each do |spec|
          spec.require_paths.each {|path| 
             @paths << "#{gempath}/gems/#{spec.full_name}/#{path}"
             foo = "hallo"
             }
        end
      end
    end

Here you iterate over the gem path members but always reset @specs. So
in my case it founds the specs for in "c:/ruby/lib/ruby/gems/1.8" but
when trying to glob "/lib/ruby/gems/1.8" it clears the @specs member.
Later in     def self.search_gempath(file)  it will never find the
specification and so never activate the gem and always return
"false".

And by the way, on   http://rubygems.rubyforge.org/wiki/wiki.pl?UserGuide
you talk about a RUBY_GEMS environment variable, instead of GEM_PATH.
I think this is an also an mistake.


-- 
 Best regards,                        emailto: scholz at scriptolutions dot com
 Lothar Scholz                        http://www.ruby-ide.com
 CTO Scriptolutions                   Ruby, PHP, Python IDE 's