Easily build Portfiles from ruby gems

Paul Guyot pguyot at kallisys.net
Mon Nov 6 13:57:31 PST 2006

Le 7 nov. 06 à 01:00, James Berry a écrit :

> Hey Paul,
> On Nov 6, 2006, at 6:40 AM, Paul Guyot wrote:
>> In both cases, it creates a new directory, rb-gem_name, with the  
>> Portfile in it. Please note that this portfile uses the new  
>> rubyforge_gem fetch syntax (available with the ruby group  
>> modification I just committed to the svn repository). The second  
>> version will download the gem in the current directory. I need the  
>> file to be able to compute the checksums. Besides, if several gems  
>> exist and some of them are binaries, it will ask you to choose a  
>> version (using the native gem mechanism).
> Looks great! I think this is a good step forward. The gem issues  
> were getting a bit weird. This will help MacPorts really shine as a  
> source for ruby software.
>> This script requires gems (sudo port install rb-rubygems).
>> With such a script, there's no reason to continue to use gem to  
>> install ruby gems. Using gem may yield in inconsistencies. I know  
>> that most ruby tutorial around say: get ruby with darwinports,  
>> then use gem. But I strongly disagree. At some point, we may  
>> rename gem binary and put a fake one that displays a warning message.
> Question: does it make sense to now make the gem software installed  
> by MacPorts actually install gems into the "usual" location rather  
> that in /opt/local? That would mean that MacPorts can source gem,  
> but gem installs gems in a typical fashion, not intermingling them  
> into /opt/local, which I think would complete the separation.

I'm not sure I understand what you mean by the "usual" location.
/opt/local/bin/gem installs stuff in /opt/local
/opt/local/bin/port also does, when it uses gem and when it doesn't.

Technically, the only difference when using a port based on the new  
script and gem is that with a port:
- you can deactivate the port.
- the files are registered in MacPorts database (filemap).

Otherwise, the files are at the same place.

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