Rails - Jul 2006 - ROR dev on Different Ruby versions

Hi,

First I would like to ask if someone could give me the direct link to 
the mailing list this forum mirrors. This is so I can do searches 
directly and not bother folks with repeat questions.

Now my question:
I recently installed a ROR app built on Ruby 1.8.2 and moved it to ROR 
on Ruby 1.8.4. I got a few errors and had to regenerate my app in the 
later and copy the App files and a few other directories from the 
former.

These two versions are on 2 different machines.

I was wondering whether it Is it possible to install two versions of 
Ruby say 1.8.2 and 1.8.4 along with rails on the same machine and 
somehow switch over between ruby versions to test the apps ? Or can you 
suggest best practices when dealing with these types of situations ? Off 
the bat, I think that I could setup virtual machines on another computer 
and load up an installation for each machine... but are there other 
(better) ways ?

TIA,
Tuka

PS: I am devlopeng in the windows environment....

-- 
Posted via http://www.ruby-forum.com/.

Tuka Opaleye wrote:
> I was wondering whether it Is it possible to install two versions of 
> Ruby say 1.8.2 and 1.8.4 along with rails on the same machine and 
> somehow switch over between ruby versions to test the apps ? 
You can freeze rails to a specific version for a specific application.

http://www.google.com/search?q=freeze+rails

You may be able to install multiple versions of the One-Click Ruby 
installer and create .bat files to setup the path differently depending 
on which version you wanted to use. But I imagine there could be a lot 
of problems trying to get that working.

Matt Griffith
http://mattgriffith.net


-- 
Posted via http://www.ruby-forum.com/.

Tuka Opaleye wrote:
> Hi,
>
> First I would like to ask if someone could give me the direct link to 
> the mailing list this forum mirrors. This is so I can do searches 
> directly and not bother folks with repeat questions.
>
> Now my question:
> I recently installed a ROR app built on Ruby 1.8.2 and moved it to ROR 
> on Ruby 1.8.4. I got a few errors and had to regenerate my app in the 
> later and copy the App files and a few other directories from the 
> former.
>
> These two versions are on 2 different machines.
>
> I was wondering whether it Is it possible to install two versions of 
> Ruby say 1.8.2 and 1.8.4 along with rails on the same machine and 
> somehow switch over between ruby versions to test the apps ? Or can you 
> suggest best practices when dealing with these types of situations ? Off 
> the bat, I think that I could setup virtual machines on another computer 
> and load up an installation for each machine... but are there other 
> (better) ways ?
>   
Well, I haven''t met a situation where a particular version of Ruby 
hasn''t worked for me (I''ve used 1.8.2 and 1.8.4
interchangeably), but in
case it does pop up.. Why not install / compile the two ruby versions 
into two separate directories, then simply alter the "shebang" line in
the application that requires Ruby 1.8.2 to point to the alternate 
version of ruby on your disk?

(the shebang, if you don''t know, is the #!/usr/local/bin/ruby, 
#!/c:/ruby/bin/ruby etc... line at the beginning of your dispatch.* 
files in the public directory.

You''d also have to explicitly type the whole path to ruby before 
script/server etc on windows (i.e. c:\ruby\1.8.2\bin\ruby script/server).

The mailing list can be found at http://rubyonrails.org/community along 
with some other useful stuff (like the official Wiki).

-- 
Henning Kilset
Rails Foundry
http://railsfoundry.com/