My Crystal Experiment

For a very long time, I have been planning to play with Crystal as possible substitute/complement for Ruby. With that goal, I have isolated a very small subset of the Ruby project I know the best and I'm migrating it to Crystal to get a general feeling about the language.

Content of the repository

The `ruby` directory

It's basically a small subset of yast-storage-ng with all dependencies removed. That mainly means no calls to the YaST logger or any other YaST API, no localization (which also depended on YaST and on gettext), no UI and no interaction with libstorage-ng.

Other than removing dependencies, the goal of this directory is to be as faithful to the real yast-storage-ng as possible, even for those classes or RSpec tests that are not exactly an example of Ruby/RSpec correctness.

The tests can be executed in any system with Ruby installed by simply running:

cd ruby
rake test

The `crystal` directory

The plan is to populate this directory with the Crystal equivalence to the ruby one, step by step. Since the main goal is to check how Crystal "feels" compared to Ruby, the conversion is done trying to perform the very minimum set of changes. For example, explicit type definitions are added only when needed or when they allow to remove guard clauses.

Displaying every Crystal class and test alongside its corresponding Ruby/RSpec one should clearly show the similarities and differences between both languages.

The tests can be executed in any system with Crystal and make installed by simply running: