Rubygems, RVM and Bundler Confusion

Ruby
1

I am really confused with how these three (rubygems, rvm and bundler)
work in isolation when we are installing gems. Please do not tell me how
you work :slight_smile: :slight_smile: that will help me but I won’t learn what is exactly
happening when we play with rubygems, rvm and bundler.

My above single confusion can be broken down into these questions below.

  1. When I just have rubygems (without rvm or bundler), and when i
    install a gem, where is it getting installed ?
  2. When rubygems + rvm is installed, and when i install a gem, where
    is it getting installed ?
  3. when rubygems + rvm + bundler is installed, and when i install a
    gem, where is it getting installed?

Please help me understand this stuff. thanks a ton.

2
  1. When I just have rubygems (without rvm or bundler), and when i
    install a gem, where is it getting installed ?

If you ‘gem install’, it gets installed to your home directory. If you
‘sudo
gem install’, it gets installed to a global directory, I don’t quite
remember at the moment.

  1. When rubygems + rvm is installed, and when i install a gem, where
    is it getting installed ?

Into ~/.rvm/rubies/the_ruby_i’m_using/lib/ruby/gems/1.9/gems, or
something
very similar.

  1. when rubygems + rvm + bundler is installed, and when i install a
    gem, where is it getting installed?

The same place. Bundler only automates which gems get installed, not
where
they go.

3
  1. when rubygems + rvm + bundler is installed, and when i install a
    gem, where is it getting installed?

The same place. Bundler only automates which gems get installed, not
where
they go.

thanks. what about a directory called .bundle in our app’s root folder.
what does it have and what role does it play ?

4

On Wed, Jan 5, 2011 at 4:53 AM, lucky Developer [email protected]
wrote:

  1. When I just have rubygems (without rvm or bundler), and when i
    install a gem, where is it getting installed ?
  2. When rubygems + rvm is installed, and when i install a gem, where
    is it getting installed ?
  3. when rubygems + rvm + bundler is installed, and when i install a
    gem, where is it getting installed?

gem env will show you where things are getting installed (and a lot
more, actually).

You might also want to run gem --help to get more familiar with the
capabilities and options.

HTH,

5

thanks. what about a directory called .bundle in our app’s root folder.
what does it have and what role does it play ?

It contains a file, config, which is a YAML file that saves the options
you
ran bundler with, that way they can become the default.

Sometimes, if you run certain commands, it can contain a cache of your
gems.
But that’s not usual.

Also, you’ll want to put .bundle in your .gitignore, and Gemfile and
Gemfile.lock into your repository UNLESS you’re developing a gem, in
which
case, you just want the Gemfile. More here: