Rails < 5 must use Nokogiri 1.6.x

Author: maschwenk

Appraisals

@@ -1,8 +1,10 @@
 [ '4.0', '4.1', '4.2' , '5.0', '5.1' ].each do |ver|
+  nokogiri_ver = ver.to_i < 5 ? '1.6' : '1.7'
   appraise "rails-#{ver}" do
     gem 'actionpack',   "~> #{ver}.0"
     gem 'activerecord', "~> #{ver}.0"
     gem 'railties',     "~> #{ver}.0"
+    gem 'nokogiri',     "~> #{nokogiri_ver}.0"
   end
 end
 

gemfiles/rails_4.0.gemfile

@@ -5,5 +5,6 @@ source "https://rubygems.org"
 gem "actionpack", "~> 4.0.0"
 gem "activerecord", "~> 4.0.0"
 gem "railties", "~> 4.0.0"
+gem "nokogiri", "~> 1.6.0"
 
 gemspec :path => "../"

gemfiles/rails_4.1.gemfile

@@ -5,5 +5,6 @@ source "https://rubygems.org"
 gem "actionpack", "~> 4.1.0"
 gem "activerecord", "~> 4.1.0"
 gem "railties", "~> 4.1.0"
+gem "nokogiri", "~> 1.6.0"
 
 gemspec :path => "../"

gemfiles/rails_4.2.gemfile

@@ -5,5 +5,6 @@ source "https://rubygems.org"
 gem "actionpack", "~> 4.2.0"
 gem "activerecord", "~> 4.2.0"
 gem "railties", "~> 4.2.0"
+gem "nokogiri", "~> 1.6.0"
 
 gemspec :path => "../"

gemfiles/rails_5.0.gemfile

@@ -5,5 +5,6 @@ source "https://rubygems.org"
 gem "actionpack", "~> 5.0.0"
 gem "activerecord", "~> 5.0.0"
 gem "railties", "~> 5.0.0"
+gem "nokogiri", "~> 1.7.0"
 
 gemspec :path => "../"

gemfiles/rails_5.1.gemfile

@@ -5,5 +5,6 @@ source "https://rubygems.org"
 gem "actionpack", "~> 5.1.0"
 gem "activerecord", "~> 5.1.0"
 gem "railties", "~> 5.1.0"
+gem "nokogiri", "~> 1.7.0"
 
 gemspec :path => "../"