Gemfile の Dual Boot 方法 - id:onk のはてなブログ

Gemfile 内で切り替える こういう ENV で切り替えるやつとか、eval_gemfile を使うやつとか。 https://github.com/discourse/discourse/blob/v2.6.2/Gemfile#L9-L16 def rails_master? ENV["RAILS_MASTER"] == '1' end if rails_master? gem 'arel', git: 'https://github.com/rails/arel.git' gem 'rails', git: 'https://github.com/rails/rails.git' else # NOTE: Until rubygems gives us optional dependencies we are stuck with this needing to be explic

[sue445]

Gemfile.nextなるほど。Gemfile.local懐かしいw