Install Ruby via RVM when not installed

[Peter Bittner]

As a developer I want Ruby, Sass and Compass be installed locally on my account (not globally on my machine) so that my machine setup is not polluted and I get a flexible Ruby installation (that doesn't require sudo for installing gems).

Details

Currently, Ruby, Sass and Compass are installed system-wide if they are not found when executing make bootstrap. So, as an alternative we could install only RVM globally, and the rest of the Ruby tool chain locally. Quick'n'dirty example:

$ \curl -sSL https://get.rvm.io | bash -s stable --ruby
$ echo "export PATH=$PATH:~/.rvm/rubies/default/bin" >> ~/.bash_aliases
$ echo "gem: --no-document" >> ~/.gemrc
$ gem install --pre sass-css-importer
$ gem install compass

The behavior is defined at Makefile (lines 32+).

[Peter Bittner]

The same should be true for Node.js via NVM. Both RVM and NVM should be installed (for front-end) before anything else.

See the "Development Notes" in the README of pelican-theme-cid-painless and the setup on the Dell XPS13 for the Painless website for some details.

[Peter Bittner]

Tracked in Mingle card #24.