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Is there a way to move gems from 1.8.4 to 1.8.6?

Wes Gamble

7/25/2007 5:30:00 AM

I am currently on Ruby 1.8.4 on Windows XP.

I'd like to move to 1.8.6 - do I need to reinstall all of my gems or is
there a way for me to move them to my new 1.8.6 installation?

Thanks,
Wes
--
Posted via http://www.ruby-....
5 Answers

Travis D Warlick Jr

7/25/2007 6:00:00 AM

0

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Wes Gamble wrote:
> I am currently on Ruby 1.8.4 on Windows XP.
>
> I'd like to move to 1.8.6 - do I need to reinstall all of my gems or is
> there a way for me to move them to my new 1.8.6 installation?

In my upgrades, I upgrade Ruby, then run

gem update -y

Your gems are separate from your ruby install, so all your gems will stay put.

I recommend checking that all your gems support 1.8.6 (don't know of any
conflicts, just a disclaimer)

- --
Travis Warlick

"Programming in Java is like dealing with your mom --
it's kind, forgiving, and gently chastising.
Programming in C++ is like dealing with a disgruntled
girlfriend -- it's cold, unforgiving, and doesn't tell
you what you've done wrong."
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James Britt

7/25/2007 6:26:00 AM

0

Travis D Warlick Jr wrote:
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>
> Wes Gamble wrote:
>> I am currently on Ruby 1.8.4 on Windows XP.
>>
>> I'd like to move to 1.8.6 - do I need to reinstall all of my gems or is
>> there a way for me to move them to my new 1.8.6 installation?
>
> In my upgrades, I upgrade Ruby, then run
>
> gem update -y
>
> Your gems are separate from your ruby install, so all your gems will stay put.

Are you sure? I haven't installed on windows in a while, but last I
recall, if you used the packaged (i.e. "1-click") installer, it deleted
the entire existing Ruby install, gems and all.

James

Travis D Warlick Jr

7/25/2007 6:51:00 AM

0

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James Britt wrote:
> Travis D Warlick Jr wrote:
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> Wes Gamble wrote:
>>> I am currently on Ruby 1.8.4 on Windows XP.
>>>
>>> I'd like to move to 1.8.6 - do I need to reinstall all of my gems or is
>>> there a way for me to move them to my new 1.8.6 installation?
>>
>> In my upgrades, I upgrade Ruby, then run
>>
>> gem update -y
>>
>> Your gems are separate from your ruby install, so all your gems will
>> stay put.
>
> Are you sure? I haven't installed on windows in a while, but last I
> recall, if you used the packaged (i.e. "1-click") installer, it deleted
> the entire existing Ruby install, gems and all.

I didn't use the 1-click installer, I just downloaded the Binary version and
unzipped it into the ruby directory.

- --
Travis Warlick

"Programming in Java is like dealing with your mom --
it's kind, forgiving, and gently chastising.
Programming in C++ is like dealing with a disgruntled
girlfriend -- it's cold, unforgiving, and doesn't tell
you what you've done wrong."
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Wes Gamble

7/25/2007 10:53:00 PM

0

Under Windows, the gems are not separate from the Ruby installation,
hence my question.

RUBY_HOME=C:\ruby

Gems live in C:\ruby\lib\ruby\gems.

I plan to just copy them over in the new installation directory for now.

Thanks,
Wes
--
Posted via http://www.ruby-....

Patrick Hurley

7/26/2007 12:59:00 PM

0

On 7/25/07, Wes Gamble <weyus@att.net> wrote:
> Under Windows, the gems are not separate from the Ruby installation,
> hence my question.
>
> RUBY_HOME=C:\ruby
>
> Gems live in C:\ruby\lib\ruby\gems.
>
> I plan to just copy them over in the new installation directory for now.

Wes, don't forget that some gems install a binary component which if
you just copy the gem tree, you will miss. I would suggest that you
get all the gems from your gem cache directory. Your cache directory
can be found by:

gem environment <enter>
RubyGems Environment:
- VERSION: 0.9.2 (0.9.2)
- INSTALLATION DIRECTORY: /opt/local/lib/ruby/gems/1.8
- GEM PATH:
- /opt/local/lib/ruby/gems/1.8
- REMOTE SOURCES:
- http://gems.rub...

The GEM PATH plus cache, so on my system
/opt/local/lib/ruby/gems/1.8/cache is where all the gem files live.
Copy these off and then update your ruby, then (with gem installed if
necessary it is part of the one click installer), in the directory
where you copied off the gems:

gem install *.gem --force

You need the force to simplify the handling of dependencies and
assumedly all the dependencies were valid in your previous install.

Note this can take a while if you have a lot of gems, but this has
worked for me in the past.

Good luck
pth