Set up appraisal

and move build-specific dependencies to the Appraisals.

.gitignore

@@ -6,3 +6,6 @@
 /doc
 /.bundle
 /vendor/gems
+
+/gemfiles/*.gemfile.lock
+/gemfiles/.bundle

Appraisals

@@ -0,0 +1,63 @@
+appraise "rails42" do
+  gem 'rails', '~> 4.2.0'
+end
+
+appraise "rails50" do
+  gem 'rails', '~> 5.0.0'
+end
+
+appraise "rails51" do
+  gem 'rails', '~> 5.1.0'
+end
+
+appraise "rails42_haml" do
+  gem 'rails', '~> 4.2.0'
+  gem 'haml'
+end
+
+appraise "rails50_haml" do
+  gem 'rails', '~> 5.0.0'
+  gem 'haml'
+end
+
+appraise "rails51_haml" do
+  gem 'rails', '~> 5.1.0'
+  gem 'haml'
+end
+
+appraise "rails42_boc" do
+  gem 'rails', '~> 4.2.0'
+  gem "binding_of_caller", platforms: :ruby
+end
+
+appraise "rails50_boc" do
+  gem 'rails', '~> 5.0.0'
+  gem "binding_of_caller", platforms: :ruby
+end
+
+appraise "rails51_boc" do
+  gem 'rails', '~> 5.1.0'
+  gem "binding_of_caller", platforms: :ruby
+end
+
+appraise 'rack' do
+end
+
+appraise 'rack_boc' do
+  gem 'binding_of_caller'
+end
+
+# To be removed in the future once the Pry REPL is extracted from this project.
+appraise "pry09" do
+  gem "pry", "~> 0.9.12"
+end
+
+# To be removed in the future once the Pry REPL is extracted from this project.
+appraise "pry010" do
+  gem "pry", "~> 0.10.0"
+end
+
+# To be removed in the future once the Pry REPL is extracted from this project.
+appraise "pry011" do
+  gem "pry", "~> 0.11.0pre"
+end

Gemfile

@@ -2,6 +2,7 @@ source 'https://rubygems.org'
 
 gemspec
 
-gem "rack", "1.6.4"
-gem "binding_of_caller", platforms: :ruby
-gem "pry", "0.9.12"
+# gem "pry-byebug"
+
+# Allows us to generate multiple Gemfiles to run tests against multiple versions of dependencies.
+gem "appraisal"

README.md

@@ -79,6 +79,21 @@ See [the wiki for instructions on configuring the editor](https://github.com/cha
 
 If you're using better_errors, I'd love to hear from you. Drop me a line and tell me what you think!
 
+## Development
+
+After checking out the repo, run `bundle install` to install the basic dependencies.
+
+You can run the tests with the most recent version of Rails running `bundle exec rake`.
+
+To run the tests against the other sets of dependencies, though, you will need to use Appraisal.
+Run `appraisal install` to run install the dependencies for each of the possible combinations.
+
+Then you can run `appraisal rake` to run all tests, or (for example) `appraisal rails_42_boc rake` to only run the specs with Rails 4.2 and binding_of_caller.
+
+To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
+
+On CI, the specs are run against each major release of Ruby in addition to each Appraisal gemfile.
+
 ## Contributing
 
 1. Fork it

gemfiles/pry010.gemfile

@@ -0,0 +1,8 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "pry", "~> 0.10.0"
+
+gemspec path: "../"

gemfiles/pry011.gemfile

@@ -0,0 +1,8 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "pry", "~> 0.11.0pre"
+
+gemspec path: "../"

gemfiles/pry09.gemfile

@@ -0,0 +1,8 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "pry", "~> 0.9.12"
+
+gemspec path: "../"

gemfiles/rack.gemfile

@@ -0,0 +1,7 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+
+gemspec path: "../"

gemfiles/rack_boc.gemfile

@@ -0,0 +1,8 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "binding_of_caller"
+
+gemspec path: "../"

gemfiles/rails42.gemfile

@@ -0,0 +1,8 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "rails", "~> 4.2.0"
+
+gemspec path: "../"

gemfiles/rails42_boc.gemfile

@@ -0,0 +1,9 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "rails", "~> 4.2.0"
+gem "binding_of_caller", platforms: :ruby
+
+gemspec path: "../"

gemfiles/rails42_haml.gemfile

@@ -0,0 +1,9 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "rails", "~> 4.2.0"
+gem "haml"
+
+gemspec path: "../"

gemfiles/rails50.gemfile

@@ -0,0 +1,8 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "rails", "~> 5.0.0"
+
+gemspec path: "../"

gemfiles/rails50_boc.gemfile

@@ -0,0 +1,9 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "rails", "~> 5.0.0"
+gem "binding_of_caller", platforms: :ruby
+
+gemspec path: "../"

gemfiles/rails50_haml.gemfile

@@ -0,0 +1,9 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "rails", "~> 5.0.0"
+gem "haml"
+
+gemspec path: "../"

gemfiles/rails51.gemfile

@@ -0,0 +1,8 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "rails", "~> 5.1.0"
+
+gemspec path: "../"

gemfiles/rails51_boc.gemfile

@@ -0,0 +1,9 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "rails", "~> 5.1.0"
+gem "binding_of_caller", platforms: :ruby
+
+gemspec path: "../"

gemfiles/rails51_haml.gemfile

@@ -0,0 +1,9 @@
+# This file was generated by Appraisal
+
+source "https://rubygems.org"
+
+gem "appraisal"
+gem "rails", "~> 5.1.0"
+gem "haml"
+
+gemspec path: "../"