Default Rails setup convention between "bundle install" and "rake"

Question: Has anyone thought about or worked on creating default Rails setup code for the work between "bundle install" and "rake" for Rails 4.0?

    -- Sub-question: Is it part of Rails or rake or joint effort?

    -- My initial guess at what should be included:         -a- Naming convention for hidden and multiple database.yml files.             -- template: database.<one_word>.yml             -- if only one hidden file, then                 -- database.example.yml             -- if one hidden file per database type, then                 -- use gem name as <one_word>                 -- database.sqlite3.yml, database.postgresql.yml,                 -- database.mysql2.yml, database.oracle.yml         -b- A rake command that exercise the typical steps between "bundle install" and "rake".             -- Mostly, but not completely, involving database setup.             -- Examples from existing projects:                 -- rake db:setup, rake setup, lots of rake db:<one_step>             -- Can you run this default rake command completely in batch mode?

Thanks, Al

PS. What is the right "rake" e-group to ask this question?