[rvm] install rubies as root and use them as a user

[hiroshi]

hi,

I'd like to install rubies as root and "rvm use" as a user.
I figured out a way that installing rvm by both root and each user and
symlinking root installed rubies into user's .rvm directories like
that:
sudo rvm install ruby-1.9.2
(cd ~/.rvm/rubies && ln -s /usr/local/rvm/rubies/ruby-1.9.2-preview1
ruby-1.9.2-preview1)
(cd ~/.rvm/bin && ln -s /usr/local/rvm/bin/ruby-1.9.2-preview1
ruby-1.9.2-preview1)
(cd ~/.rvm/gems && ln -s /usr/local/rvm/gems/ruby-1.9.2-preview1
ruby-1.9.2-preview1)

After that, as a user I can:
rvm use ruby-1.9.2

If a gem is needed:
rvmsudo gem install bundler

Is it a right way to share root installed rvm rubies with users?
That symlinking all over and duplicated installation of rvm feel me
something wrong.
# I think symlinking rvm/rubies, bin gems will work, but it may
prevent users install own local rubies.

(I use rvm 0.1.27 via `sudo gem install rvm`)

Thanks

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[Wayne E. Seguin]

On Fri, Apr 16, 2010 at 8:03 AM, hiroshi <hiros...@gmail.com> wrote:
> hi,
>
> I'd like to install rubies as root and "rvm use" as a user.
> I figured out a way that installing rvm by both root and each user and
> symlinking root installed rubies into user's .rvm directories like
> that:
> sudo rvm install ruby-1.9.2
> (cd ~/.rvm/rubies && ln -s /usr/local/rvm/rubies/ruby-1.9.2-preview1
> ruby-1.9.2-preview1)
> (cd ~/.rvm/bin && ln -s /usr/local/rvm/bin/ruby-1.9.2-preview1
> ruby-1.9.2-preview1)
> (cd ~/.rvm/gems && ln -s /usr/local/rvm/gems/ruby-1.9.2-preview1
> ruby-1.9.2-preview1)
>
> After that, as a user I can:
> rvm use ruby-1.9.2
>
> If a gem is needed:
> rvmsudo gem install bundler

Very creative! I recommend against doing this.

Additionally, I recommend using 1.9.2-head instead of preview1
as it has far less bugs / pain points.

> Is it a right way to share root installed rvm rubies with users?
> That symlinking all over and duplicated installation of rvm feel me
> something wrong.
> # I think symlinking rvm/rubies, bin gems will work, but it may
> prevent users install own local rubies.
>
> (I use rvm 0.1.27 via `sudo gem install rvm`)

If you *must* install your rubies as root, then to share them for each user
set the following in each user's ~/.rvmrc file:

export rvm_gems_path="$HOME/.rvm/gems/"

Additionally, each user will have to source rvm slightly different from normal
at the end of their profiles (~/.bashrc / ~/.bash_profile):

source /usr/local/rvm/scripts/rvm

Users can then do 'gem install X' without needing sudo permissions and
use their own gemsets, etc. The restriction would be that they would not

~Wayne

[hiroshi saito]

Wayne,

> Additionally, I recommend using 1.9.2-head instead of preview1
> as it has far less bugs / pain points.

Yeah, I switched after seeing "[BUG] rb_add_method: unsupported method
type (8)" ;)

To be clear why I prefer to share root installed rubies and gems.
I have a small server which (will) hosts several rails apps dependent
on different version of rubies. (Yeah, I should use one ruby for a
server, but...)
I seldom maintain those apps on the server as a user. It seems natural using
same set of ruby and gems (at least for me).

Anyway,
after a while I posted, I found an improved way as you mentioned of .rvmrc.
My version of .rvmrc is:

rvm_rubies_path=/usr/local/rvm/rubies
rvm_gems_path=/usr/local/rvm/gems

with this settings and an extra process I got root installed rubies as a user.
The extra process is
(cd ~/.rvm/bin && ln -s /usr/local/rvm/bin/ruby-head ruby-head)

just after
rvmsudo rvm install ruby-head
.

I rather content with the result of it, but if you ask me what cause
the last symlink.

At a line of the file rvm/script/symlink;

ln -fs "$rvm_bin_path/$rvm_ruby_string" "$rvm_bin_path/${flag}_ruby"
for binary in gem irb rake ; do
ln -fs "$rvm_ruby_home/bin/${binary}" "$rvm_bin_path/${flag}_${binary}"
done

Why not:

for binary in ruby gem irb rake ; do
ln -fs "$rvm_ruby_home/bin/${binary}" "$rvm_bin_path/${flag}_${binary}"
done

Anyway, thanks for the greatness of RVM!

--
齋藤 宏
Hiroshi Saito
hiros...@gmail.com
http://blog.yakitara.com/
http://github.com/hiroshi
http://www.linkedin.com/pub/hiroshi-saito/8/aab/260

[Wayne E. Seguin]

On Fri, Apr 16, 2010 at 12:24 PM, hiroshi saito <hiros...@gmail.com> wrote:
> Wayne,
>
>> Additionally, I recommend using 1.9.2-head instead of preview1
>> as it has far less bugs / pain points.
> Yeah, I switched after seeing "[BUG] rb_add_method: unsupported method
> type (8)" ;)
>
> To be clear why I prefer to share root installed rubies and gems.
> I have a small server which (will) hosts several rails apps dependent
> on different version of rubies. (Yeah, I should use one ruby for a
> server, but...)
> I seldom maintain those apps on the server as a user. It seems natural using
> same set of ruby and gems (at least for me).

That's fine :)

> Anyway,
> after a while I posted, I found an improved way as you mentioned of .rvmrc.
> My version of .rvmrc is:
>
>  rvm_rubies_path=/usr/local/rvm/rubies
>  rvm_gems_path=/usr/local/rvm/gems
>
> with this settings and an extra process I got root installed rubies as a user.
> The extra process is
>  (cd ~/.rvm/bin && ln -s /usr/local/rvm/bin/ruby-head ruby-head)
>
> just after
>  rvmsudo rvm install ruby-head
> .
> I rather content with the result of it, but if you ask me what cause
> the last symlink.
>
> At a line of the file rvm/script/symlink;
>
>  ln -fs "$rvm_bin_path/$rvm_ruby_string" "$rvm_bin_path/${flag}_ruby"
>  for binary in gem irb rake ; do
>    ln -fs "$rvm_ruby_home/bin/${binary}" "$rvm_bin_path/${flag}_${binary}"
>  done
>
> Why not:
>
>  for binary in ruby gem irb rake ; do
>    ln -fs "$rvm_ruby_home/bin/${binary}" "$rvm_bin_path/${flag}_${binary}"
>  done

Due to the fact that the one in bin_path is actually a wrapper script
which sets environment...

I am now wondering if that is necessary at this point...

> Anyway, thanks for the greatness of RVM!

Enjoy!