Add special __DEFAULT__ gemset to include all default gems

[tomykaira]

"Global" gemset is not used when no gemset is active.
A rbenv user usually installs gems into the default directory, not "global" gemset.
This option make it easy to reuse these gems in the default directory.

Current implementation get gempath by

RBENV_GEMSETS=" " gem env gempath

but it is ugly. Please modify if there is a better way

Example:

# .rbenv-gemsets
my-gemset
__DEFAULT__

[joefiorini]

I'll take a look at this soon, thanks for submitting!

[nagas]

I would love to have it!

[jf]

hey @tomykaira, interesting idea!

RBENV_GEMSETS=" " gem env gemdir

would be better, though. This will result in only one directory - that of the real "default" directory where gems will be installed!

[tomykaira]

@jf Thank you for advice.

I intend to access all gems which is available in the default (without gemset) environment.
gemdir gives only one directory, and gempath gives one or more, but all of gempath directories are looked up in the default.
Therefore I think gempath is better.

Let me know if I misunderstand something.

[jf]

Yes, but really, practically, would anything really get installed with rbenv into your ~/.gem ? That is what I'm getting at. The gempath might include some subdirectory in ~/.gem - but for all practical intents and purposes, if you don't specify a gemset, your gems will really only get installed into gemdir ...

[jf]

hey @tomykaira , I hope the latest version works for you. I'm not going to add in what is in my opinion unnecessary gem paths at this point in time. Really only ONE of the gem paths is used (and that's the gemdir!); and that's the one I've included. I am officially closing this now.