>It seems to me that something has changed quite a bit about how executable
>gems are handled in the last few versions?
>
>In the past there was a $GEM_HOME/bin directory but it doesn't seem to be
>there any more? Instead it seems the executable files for installed gems end
>up in the same place that the gem command exits? Is this right? Or am I off
>base on this?
>
>The reason I ask is I'm left wondering how best to separate a Ruby 1.8
>environment from a Ruby 1.9 environment so that they can each have a for
>example a 'rails' gem installed and work in both environments at the same time
>but with separate gems?
Michael,
I install ruby 1.9 into a whole different directory and the gems also live
there. If I am writing code for 1.9
This is how it works on my MacOS X 10.4.11 system.
My source for Ruby 1.9 lives here:
~/dev/ruby/src/ruby_1_9
The Ruby 1.9 install lives here:
~/dev/ruby/1.9_trunk
I build the source using these configure parameters:
./configure --prefix=/Users/stephen/dev/ruby/1.9_trunk/ --enable-pthread
--with-readline-dir=/usr/local --enable-shared
[I've already got an up-to-date copy of readline built and installed in
/usr/local]
Following this with make; make install creates my ruby 1.9 installation here
~/dev/ruby/1.9_trunk.
I set my path accordingly by executing this after I cd into
~/dev/ruby/1.9_trunk:
export PATH=`pwd`/bin:$PATH
I've now got a pristine new ruby 1.9 environment there. Gems installed there
won't conflict at all with the Ruby 1.8.6 p111 I have installed in /usr/local.
I do something very similar for my JRuby installs.
[~/dev/ruby/1.9_trunk]$ ruby --version
ruby 1.9.0 (2007-12-29 revision 0) [i686-darwin8.11.1]
[~/dev/ruby/1.9_trunk]$ gem environment
RubyGems Environment:
- RUBYGEMS VERSION: 1.0.1 (1.0.1)
- RUBY VERSION: 1.9.0 (2007-12-29 patchlevel 0) [i686-darwin8.11.1]
- INSTALLATION DIRECTORY:
/Users/stephen/dev/ruby/1.9_trunk/lib/ruby/gems/1.9.0
- RUBYGEMS PREFIX: /Users/stephen/dev/ruby/1.9_trunk/lib/ruby
- RUBY EXECUTABLE: /Users/stephen/dev/ruby/1.9_trunk/bin/ruby
- RUBYGEMS PLATFORMS:
- ruby
- x86-darwin-8
- GEM PATHS:
- /Users/stephen/dev/ruby/1.9_trunk/lib/ruby/gems/1.9.0
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- "rdoc" => "--template jamis --inline-source --line-numbers"
- REMOTE SOURCES:
- http://gems.rubyforge.org
[~/dev/ruby/1.9_trunk]$ gem list --local
*** LOCAL GEMS ***
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