Okay, one elegant way to do make gems visible to MacRuby in XCode4 is to add
environment variables GEM_HOME and GEM_PATH in the "Scheme".
If you have ruby 1.9.2 installed via rvm (rvm.beginrescueend.com) as I do, type:
>rvm 1.9.2
>rvm info
Look for the GEM_HOME and GEM_PATH values, and add these into the Environment
Variables table in the Arguments tab of the XCode/Scheme/Edit Scheme dialog
(whew!).
Then just install whatever gems you need at the command line within rvm.
PD
Begin forwarded message:
> From: Paul Davis <peedeem...@gmail.com>
> Date: 15 April 2011 7:24:50 AM NZST
> To: macruby-devel@lists.macosforge.org
> Subject: Re: [MacRuby-devel] How do I get gems into XCode/MacRuby environment?
>
> Good suggestion.
>
> macgem install hpricot # installs the gem (apparently)
> macgem list --local # now shows rake and hpricot as the only two local
> gems...
>
> After experimentation this appears to be because these are the only two
> loaded under rvm for ruby 1.9.2. "macgem list --local" is just picking up
> whatever gems are in the currently selected rvm environment, but not all of
> these are showing up in XCode.
>
> Code snippet in rb_main.rb:
>> ['rubygems', 'pp', 'rake'].each {|gem|
>> puts "Loading '#{gem}'... #{require gem}" #=> true
>> }
>> system ('macgem list --local')
>
>
> ==>
>
>> Loading 'rubygems'... true
>> Loading 'pp'... true
>> Loading 'rake'... true
>>
>> *** LOCAL GEMS ***
>>
>>
>> applicationDidFinishLaunching
>
>
> More testing later.
>
> On 15-Apr-11, at 2:00 AM, macruby-devel-requ...@lists.macosforge.org wrote:
>
>> Try using "macgem". All of the MacRuby binaries are prefixed with "mac-"
>> (macruby, macirb, macri, etc.)
>>
>> On Thu, Apr 14, 2011 at 1:44 AM, Paul Davis <peedeem...@gmail.com> wrote:
>>
>>> I'm past the Hello World tutorial, and want to try something useful but I
>>> cannot seem to access my gems from within the XCode/MacRuby environment.
>>> rubygems is there, as is pp; but not, for instance hpricot.
>>>
>>> $gem list --local
>>> ...
>>> hpricot (0.8.1, 0.6.164)
>>> ...
>>> rack (1.0.1)
>>> rails (2.3.5, 2.3.4, 1.2.6)
>>> ...
>>>
>>> Within rb_main.rb:
>>>
>>> puts "Loading rubygems... #{require 'rubygems'}" #=> true
>>> puts "Loading pp... #{require 'pp'}" #=> true
>>>
>>> but
>>>
>>> puts "Loading hpricot... #{require 'hpricot'}"
>>>
>>> gets me "no such file to load -- hpricot (LoadError)"
>>>
>>> Any hints? Do I need to hunt down the full path?
>>> _______________________________________________
>>> MacRuby-devel mailing list
>>> MacRuby-devel@lists.macosforge.org
>>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
>>>
>>
>
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