DryerConfig
Contains most of the files of a pristine "rails new" "config" directories. They will be available to your application by the engine nature of this gem.
Your private "config" directory (and your repository) will contain just your particular requirements/options (e.g. config/database.yml).
Version numbering is according to the Rails versions, e.g. use
gem 'dryer-config', '= 5.0.0' # for a Rails 5.0.0 applications
in your Gemfile.
It is expected that the version 5.0.0 is fine for the complete Rails 5 serie. If not, a new version of this gem will be released (hopefully).
Why
Usually I run several applications based on the same Rails on one server. There is no need to waste disk space (mostly irrelevant today, but I still don't like wasting).
Several "config" files will be out of the way (less attention) for the developer.
Lastly, during the port of a Rails application to another version a pristine configuration is handy. The few remaining options in your "config" files needs less attention/work.
Installation
To install add the following to your Gemfile (e.g.):
gem 'dryer-config', '~> 5.0'
and run bundle.
Configuration
The following original config files have been dropped:
./config/application.rb
./config/initializers/session_store.rb
./config/locales/*
./config/routes.rb
./config/secrets.yml
Create your owns.
The following original config files are unused:
./config/boot.rb
./config/cable.yml
./config/database.yml
./config/environment.rb
./config/puma.rb
./config/spring.rb
Create/copy your owns. They are still there for inspection.
The following file may require your attention:
./config/initializers/assets.rb
Create your own. It will run after the one from the gem.
See also
http://railsdiff.org/