Per-branch development database with Git and Ruby on Rails.

database.yml

<%
  DEFAULT_DB  = 'myapp_development'
  DB_BRANCHES = %w[ t79 ]
  branch = `git symbolic-ref HEAD 2> /dev/null`.chomp.split('/').last
  dev_db = DB_BRANCHES.include?(branch) ? branch.gsub(/[^a-zA-Z0-9_]/, '') : DEFAULT_DB
  puts "Using dev database: #{dev_db.inspect}"
%>
development:
  database: <%= dev_db %>

https://reinteractive.com/posts/22-branch-specific-database-yml
http://www.mobalean.com/blog/2013/03/03/keep-database-in-sync-with-current-branch
https://thebrainfiles.wearebrain.com/db-per-feature-in-rails-2c1b491bc3d4
https://stackoverflow.com/questions/4735058/how-to-work-with-git-branches-and-rails-migrations
https://blog.codeship.com/git-database-branches/
https://manas.tech/blog/2016/01/08/switching-rails-app-database-per-git-branch/

https://github.com/consolo/branchy