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comp.lang.ruby

Ruby 1.9 and rubygems: should be able to use gem command?

David Palm

1/21/2008 12:18:00 PM

Hi all,
I've installed ruby 1.9 from trunk and I used the --prefix option to avoid conflicts with 1.8, like Dave Thomas advices here: http://pragdave.blogs.pragprog.com/pragdave/2007/12/ruby-19rig...

Everything seem to work splendidly, except for the "gem" command. The new install has an empty gems cache of course, so all operations that need to access that will try to bulk download the indexes from http://gems.rub...

All index downloading fails with a unhelpful "Error fetching remote gem cache: undefined method `[]=' for nil:NilClass"

I started to try to find out where the failure occurs and it seems like the guilty file is open-uri.rb (line 411), which is a call to the meta_add_field of the Meta module (adding http heders I guess) where the @meta inst var (a hash) is added to. The inst var isn't set, so that's the nil in the above error message. Why is @meta nil? I'd say it's because the Meta module isn't initialized properly, but I dont know why.

Before digging any deeper I wanted to ask you all: am I the only one having issues with the "gem" command? Should it work? Any workarounds? Am I missing something very basic?

Oh, versions:
gem -v => 1.0.1
ruby -v => ruby 1.9.0 (2008-01-21 revision 0) [i686-linux]

Platforms: MacOS X 10.5 and Ubuntu Feisty Fawn

Thanks for any pointers/comments!
2 Answers

Radoslaw Bulat

1/21/2008 5:51:00 PM

0

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Joel VanderWerf

1/21/2008 7:33:00 PM

0

David Palm wrote:
> Hi all,
> I've installed ruby 1.9 from trunk and I used the --prefix option to avoid conflicts with 1.8, like Dave Thomas advices here: http://pragdave.blogs.pragprog.com/pragdave/2007/12/ruby-19rig...
>
> Everything seem to work splendidly, except for the "gem" command. The new install has an empty gems cache of course, so all operations that need to access that will try to bulk download the indexes from http://gems.rub...
>
> All index downloading fails with a unhelpful "Error fetching remote gem cache: undefined method `[]=' for nil:NilClass"
>
> I started to try to find out where the failure occurs and it seems like the guilty file is open-uri.rb (line 411), which is a call to the meta_add_field of the Meta module (adding http heders I guess) where the @meta inst var (a hash) is added to. The inst var isn't set, so that's the nil in the above error message. Why is @meta nil? I'd say it's because the Meta module isn't initialized properly, but I dont know why.
>
> Before digging any deeper I wanted to ask you all: am I the only one having issues with the "gem" command? Should it work? Any workarounds? Am I missing something very basic?
>
> Oh, versions:
> gem -v => 1.0.1
> ruby -v => ruby 1.9.0 (2008-01-21 revision 0) [i686-linux]
>
> Platforms: MacOS X 10.5 and Ubuntu Feisty Fawn
>
> Thanks for any pointers/comments!

It seems to be working for me--I just installed the revactor gem for
1.9. My setup may be a little different. I configured with
--program-suffix=19 so that ruby 1.9 can live in /usr/local without
conflict.

$ gem19 -v
1.0.1
$ ruby19 -v
ruby 1.9.0 (2007-12-25 revision 14709) [i686-linux]
$ uname -a
Linux tumbleweed 2.6.22-14-generic #1 SMP Tue Dec 18 08:02:57 UTC 2007
i686 GNU/Linux

(That's Gutsy Gibbon)

--
vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407