[ruby-core:37190] [Archive91 - Backport #1773][Closed] Gem path doesn't honor user gem?

Issue #1773 has been updated by Eric Hodel.

Tracker changed from Bug to Backport
Status changed from Assigned to Closed

I think this is largely a bug of ruby 1.9.1's gem_prelude.  Ruby 1.9.2's gem prelude works better, please reopen if you can reproduce the issue there.
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Backport #1773: Gem path doesn't honor user gem?
http://redmine.ruby-lang.org/issues/1773

Author: Lin Jen-Shin
Status: Closed
Priority: Normal
Assignee: Eric Hodel
Category: 
Target version: 
ruby -v: ruby 1.9.1p129 (2009-05-12 revision 23412) [i686-linux]


=begin
 Sorry that I don't have much time to investigate it or
 find out if this is fixed in trunk, please tell me if this
 is duplicated or fixed, or I need to provide more
 information about it.
 
 The problem is that I use only user's gem path
 instead of system's gem path. There's no gem
 in system's gem path (i.e. /usr/lib/ruby19/gems/1.9.1)
 
 I know that setting $GEM_HOME could resolve this,
 but this would be hard to setup correctly between versions of Ruby.
 using `ENV['GEM_HOME'] = "..."' and `Gem.clear_paths' could
 resolve too, but it's not that clear, and Gem.set_home, Gem.set_paths,
 Gem.use_paths doesn't work well.
 
 p.s. Anything above and below are fine with:
 ruby 1.8.7 (2008-12-21 MBARI 6 on patchlevel 72) [i686-linux]
 So I suppose this is a bug.
 
 $ gem which rack
 (checking gem rack-1.0.0 for rack)
 /home/photos/.gem/ruby/1.9.1/gems/rack-1.0.0/lib/rack.rb
 
 $ ruby -ve 'gem "rack"'
 ruby 1.9.1p129 (2009-05-12 revision 23412) [i686-linux]
 <internal:gem_prelude>:234:in `push_gem_version_on_load_path': Could not find RubyGem rack (>= 0) (Gem::LoadError)
 	from <internal:gem_prelude>:14:in `gem'
 	from -e:1:in `<main>'
 
 $ cat .gemrc
 #gemhome: /home/photos/.gem/ruby/1.8
 #gempath: - /home/photos/.gem/ruby/1.8
 #         - /home/photos/.gem/ruby/1.9.1
 gem: --no-rdoc --no-ri --user-install --format-executable
 
 $ gem env
 RubyGems Environment:
   - RUBYGEMS VERSION: 1.3.4
   - RUBY VERSION: 1.9.1 (2009-05-12 patchlevel 129) [i686-linux]
   - INSTALLATION DIRECTORY: /usr/lib/ruby19/gems/1.9.1
   - RUBYGEMS PREFIX: /usr/lib/ruby19/gems/1.9.1/gems/rubygems-update-1.3.4
   - RUBY EXECUTABLE: /usr/bin/ruby19
   - EXECUTABLE DIRECTORY: /usr/bin
   - RUBYGEMS PLATFORMS:
     - ruby
     - x86-linux
   - GEM PATHS:
      - /usr/lib/ruby19/gems/1.9.1
      - /home/photos/.gem/ruby/1.9.1
   - GEM CONFIGURATION:
      - :update_sources => true
      - :verbose => true
      - :benchmark => false
      - :backtrace => false
      - :bulk_threshold => 1000
      - "gem" => "--no-rdoc --no-ri --user-install --format-executable"
   - REMOTE SOURCES:
      - http://gems.rubyforge.org/
 
 $ ruby -ve 'p Gem.path'
 ruby 1.9.1p129 (2009-05-12 revision 23412) [i686-linux]
 ["/usr/lib/ruby19/gems/1.9.1"]
 
 Gem.set_paths:
 $ ruby -ve 'Gem.set_paths("/home/photos/.gem/ruby/1.9.1"); p Gem.path; gem "rack"'
 ruby 1.9.1p129 (2009-05-12 revision 23412) [i686-linux]
 ["/home/photos/.gem/ruby/1.9.1", "/usr/lib/ruby19/gems/1.9.1"]
 <internal:gem_prelude>:234:in `push_gem_version_on_load_path': Could not find RubyGem rack (>= 0) (Gem::LoadError)
 	from <internal:gem_prelude>:14:in `gem'
 	from -e:1:in `<main>'
 
 Gem.set_home:
 $ ruby -ve 'Gem.set_home("/home/photos/.gem/ruby/1.9.1"); p Gem.path; gem "rack"'
 ruby 1.9.1p129 (2009-05-12 revision 23412) [i686-linux]
 ["/usr/lib/ruby19/gems/1.9.1"]
 <internal:gem_prelude>:234:in `push_gem_version_on_load_path': Could not find RubyGem rack (>= 0) (Gem::LoadError)
 	from <internal:gem_prelude>:14:in `gem'
 	from -e:1:in `<main>'
 
 
 Gem.use_paths and calling gem first is fine, but not for require first:
 $ ruby -ve 'Gem.use_paths("/home/photos/.gem/ruby/1.9.1"); p Gem.path; gem "rack"'
 ruby 1.9.1p129 (2009-05-12 revision 23412) [i686-linux]
 ["/home/photos/.gem/ruby/1.9.1"]
 
 $ ruby -ve 'Gem.use_paths("/home/photos/.gem/ruby/1.9.1"); p Gem.path; require "rack"'
 ruby 1.9.1p129 (2009-05-12 revision 23412) [i686-linux]
 ["/home/photos/.gem/ruby/1.9.1"]
 -e:1:in `require': no such file to load -- rack (LoadError)
 	from -e:1:in `<main>'
 
 Many thanks for your listening.
=end



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