Is there a way to get JRuby use an existing CRuby Gem repository, or
is this a bad idea?
I think I have read of this, but could not find anything on it.
Thanks,
Michael
On 7/27/08, Charles Oliver N. [email protected] wrote:
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You need to set an environment variable, I think it’s GEM_PATH or
GEM_HOME.
Be careful though, I’ve seen this cause havoc on a machine where the
owner forgot that they’d done this (and it was set in an obscure place
that eluded detection).
Tom
On 28/07/2008, at 7:37 AM, Michael G. wrote:
method in rexml that’s blowing up. Two things you should do:
Thanks for the report!
Problematic frame:
1_dot_8
Thanks!
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On Mon, Jul 28, 2008 at 6:37 AM, Michael G. [email protected]
wrote:
Is there a way to get JRuby use an existing CRuby Gem repository, or
is this a bad idea?
Sharing the same repository is not recommended since rubygems installs
native extensions. So if you install using CRuby and then try and run
it using JRuby it will blow up because we cannot load C extensions
(vice-versa if you install with JRuby and then try to use with CRuby).
If you only use gems with no extensions then it is ok to do this.
-Tom
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Le 28 juil. 08 à 03:36, Thomas E Enebo a écrit :
-Tom
i knew that, however, when i do :
$ sudo jruby -S gem install monkeybars
monkeybars is installed under CRuby
also doing :
$ jruby -S gem list --local
the list i get is the CRuby one.
in my shell config, obviously i have :
export RUBYOPT=rubygems
export GEM_HOME=/opt/local/lib/ruby/gems/1.8
export RUBYLIB=/opt/local/lib/ruby/:/opt/local/lib/ruby/site_ruby/
1.8:/opt/local/lib/ruby/site_ruby/1.9.0
export RUBYGEMS=/opt/local/lib/ruby/site_ruby/1.8
this is for CRuby
Also i’ve added /opt/jruby/bin to my PATH
$ jruby -v
ruby 1.8.6 (2008-03-18 rev 6255) [ppc-jruby1.1RC3]
I’ve read the file /opt/jruby/bin/gem
and i see nothing especial for jruby.
I suppose we have to put some specific environment variables for jRuby ?
in such a case, what are the keys name ?
best,
Yvon
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Yvon,
I’m not sure of the question, but it looks as though you have GEM_HOME
set to the MRI ruby install location, so JRuby will install gems and
list gems from this location also.
From reading your description below, the behaviour you describe is
the expected behaviour; you’ve told JRuby to use GEM_HOME, so it
dutifully puts gems there.
If you don’t want JRuby to use the MRI ruby directory, just unset
the GEM_HOME variable. JRuby will then use the default location.
Not sure if this helps or hinders…
Cheers,
Tom
On 28/07/2008, at 5:06 PM, yvon.thoraval wrote:
native extensions. So if you install using CRuby and then try and
export GEM_HOME=/opt/local/lib/ruby/gems/1.8
Yvon
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Hey,
quiet frankly i put those env vars years ago and i don’t know if if
still usefull for CRuby…
anyway, thanks !
This is the same problem a good friend of mine ran into last week, the
variables for his shell were not in .profile or .bashrc, (~/.MacOSX/
Info.plist or such) so he had a hard time finding them. Like you, he
did this a while ago, before he started using JRuby.
I’m glad you’ve got it resolved!
Cheers,
Tom
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2008/7/28 Tom A. [email protected]:
Yvon,
If you don’t want JRuby to use the MRI ruby directory, just unset the
GEM_HOME variable. JRuby will then use the default location.
clear enough, after unsetting GEM_HOME, i got monkeybars under jruby
then, I’ll add :
ENV[‘GEM_HOME’]=‘’
in the /opt/jruby/bin/gem
and see if it’s sufficiant avoiding to do that by hand (unset
GEM_HOME) each time i need to use :
$ sudo jruby -S gem install some_gem
quiet frankly i put those env vars years ago and i don’t know if if
still usefull for CRuby…
anyway, thanks !
–
yvon
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Michael G. wrote:
Is there a way to get JRuby use an existing CRuby Gem repository,
or is this a bad idea?
I’m sharing repositories between different kind of interpreters. I’m
using following bunch of script (self-describing). It easy to get used
to and works relatively well.
/space/ruby/gem-repo # shared one
/space/ruby/gem-repo-c # MRI native extensions
/space/ruby/gem-repo-c # JRuby native extensions
But YMMV, as you’ve read from majority of others (shebang lines omitted,
having ~/bin/ruby on $PATH):
~/bin/ruby$ cat cgem
. ~/bin/ruby/set_gems_cruby
gem $@
~/bin/ruby$ cat jgem
. ~/bin/ruby/set_gems_jruby
jruby -S gem $@
~/bin/ruby$ cat cgem_install
repo="/space/ruby/gem-repo-c"
cgem install -i $repo $@
~/bin/ruby$ cat jgem_install
repo="/space/ruby/gem-repo-j"
jgem install -i $repo $@
~/bin/ruby$ cat set_gems_jruby
export GEM_HOME="/space/ruby/gem-repo"
export GEM_PATH="/space/ruby/gem-repo-j"
export PATH="$GEM_PATH/bin:$PATH"
~/bin/ruby$ cat set_gems_cruby
export GEM_HOME="/space/ruby/gem-repo"
export GEM_PATH="/space/ruby/gem-repo-c"
export PATH="$GEM_PATH/bin:$PATH"
m.
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The Rails wiki has a useful page on this stuff (although it doesn’t
talk about JRuby):
http://wiki.rubyonrails.org/rails/pages/HowToUseMultipleGemRepositories
–
James M. | [email protected]
Ruby and Ruby on Rails consulting
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On a somewhat related topic, what is the preferred way to upgrade to a
new
version of JRuby without having to reinstall all your gems? I have a
few
dozen gems in JRuby 1.1.4, and I’d like to move to JRuby 1.1.6 without
having to reinstall all of them. Would I use GEM_HOME and GEM_PATH to
point
to my 1.1.4 gem repository, or is there a better way to do this?
Thanks,
Lee
James M.-7 wrote:
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Martin K. wrote:
/space/ruby/gem-repo-c # JRuby native extensions
Sorry, last one should be ‘/space/ruby/gem-repo-j’.
m.
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nabblee wrote:
On a somewhat related topic, what is the preferred way to upgrade to a new
version of JRuby without having to reinstall all your gems? I have a few
dozen gems in JRuby 1.1.4, and I’d like to move to JRuby 1.1.6 without
having to reinstall all of them. Would I use GEM_HOME and GEM_PATH to point
to my 1.1.4 gem repository, or is there a better way to do this?
I think a lot of people have just been moving everything under
lib/ruby/gems/1.8 from the old install to the new install, and things
continue working ok. I’d like a better solution, but this one is pretty
painless.
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