Rails зависит от Arel, так что вам нужно вручную захватить их обоих. На данный момент это кровотечение край каждого:
gem 'rails', '~> 5.1.0.alpha', github: 'rails/rails', ref: 'abfd091980faaa4404db5fbfdf77c68a35684d08'
gem 'arel', '~> 8.0', github: 'rails/arel', ref: 'd6af2090b16f7d061aa43913d610c6fada58b7e2'
rails/rails commit history
rails/arel commit history
Добавить те на ваш Gemfile и запустить bundle
.
Предположив нет никаких конфликтов, вы должны получить вывод, который выглядит следующим образом:
19:46:18$ bundle
Fetching https://github.com/rails/rails.git
Fetching https://github.com/rails/arel.git
Fetching gem metadata from https://rubygems.org/.........
Fetching version metadata from https://rubygems.org/..
Fetching dependency metadata from https://rubygems.org/.
Resolving dependencies...
Using rake 12.0.0
Using concurrent-ruby 1.0.4
Installing i18n 0.8.0 (was 0.7.0)
Using minitest 5.10.1
Using thread_safe 0.3.5
Using builder 3.2.3
Installing erubi 1.5.0
Using mini_portile2 2.1.0
Using rack 2.0.1
Installing nio4r 2.0.0 (was 1.2.1) with native extensions
Using websocket-extensions 0.1.2
Using mime-types-data 3.2016.0521
Using arel 8.0.0 (was 7.1.4) from https://github.com/rails/arel.git (at [email protected])
Using bundler 1.13.1
Using byebug 9.0.6
Using coffee-script-source 1.12.2
Using execjs 2.7.0
Using method_source 0.8.2
Using thor 0.19.4
Using debug_inspector 0.0.2
Using ffi 1.9.17
Using multi_json 1.12.1
Using rb-fsevent 0.9.8
Using puma 3.6.2
Using sass 3.4.23
Using tilt 2.0.5
Using sqlite3 1.3.13
Using turbolinks-source 5.0.0
Using tzinfo 1.2.2
Using nokogiri 1.7.0.1
Using rack-test 0.6.3
Using sprockets 3.7.1
Installing websocket-driver 0.6.5 (was 0.6.4) with native extensions
Using mime-types 3.1
Using coffee-script 2.4.1
Using uglifier 3.0.4
Using rb-inotify 0.9.7
Using turbolinks 5.0.1
Using activesupport 5.1.0.alpha (was 5.0.1) from https://github.com/rails/rails.git (at [email protected])
Using loofah 2.0.3
Using mail 2.6.4
Using listen 3.0.8
Using rails-dom-testing 2.0.2
Using globalid 0.3.7
Using activemodel 5.1.0.alpha (was 5.0.1) from https://github.com/rails/rails.git (at [email protected])
Using jbuilder 2.6.1
Using spring 2.0.1
Using rails-html-sanitizer 1.0.3
Using activejob 5.1.0.alpha (was 5.0.1) from https://github.com/rails/rails.git (at [email protected])
Using activerecord 5.1.0.alpha (was 5.0.1) from https://github.com/rails/rails.git (at [email protected])
Using spring-watcher-listen 2.0.1
Using actionview 5.1.0.alpha (was 5.0.1) from https://github.com/rails/rails.git (at [email protected])
Using actionpack 5.1.0.alpha (was 5.0.1) from https://github.com/rails/rails.git (at [email protected])
Using actioncable 5.1.0.alpha (was 5.0.1) from https://github.com/rails/rails.git (at [email protected])
Using actionmailer 5.1.0.alpha (was 5.0.1) from https://github.com/rails/rails.git (at [email protected])
Using railties 5.1.0.alpha (was 5.0.1) from https://github.com/rails/rails.git (at [email protected])
Using sprockets-rails 3.2.0
Using coffee-rails 4.2.1
Using jquery-rails 4.2.2
Using web-console 3.4.0
Using rails 5.1.0.alpha (was 5.0.1) from https://github.com/rails/rails.git (at [email protected])
Using sass-rails 5.0.6
Bundle complete! 16 Gemfile dependencies, 62 gems now installed.
Use `bundle show [gemname]` to see where a bundled gem is installed.
~/test_application
19:49:25$
Это показывает Rails на самом переднем крае: abfd091
, на данный момент.
Здесь должны быть включены обычные слова предупреждения, которые очень опасны для использования кратковременного кровотечения по сравнению с последним стабильным выпуском!
Я думал, что добавлю этот ответ, http://stackoverflow.com/a/8524483 –