Require Ruby 1.9.3 or higher

.travis.yml

@@ -1,20 +1,17 @@
 bundler_args: --without development
+env:
+  global:
+    - JRUBY_OPTS="$JRUBY_OPTS --debug"
 language: ruby
 rvm:
-  - 1.8.7
   - 1.9.3
   - 2.0.0
-  - 2.1.0
+  - 2.1
+  - jruby-19mode
+  - jruby-head
   - rbx-2
   - ruby-head
 matrix:
-  include:
-    - rvm: jruby-18mode
-      env: JRUBY_OPTS="$JRUBY_OPTS --debug"
-    - rvm: jruby-19mode
-      env: JRUBY_OPTS="$JRUBY_OPTS --debug"
-    - rvm: jruby-head
-      env: JRUBY_OPTS="$JRUBY_OPTS --debug"
   allow_failures:
     - rvm: jruby-head
     - rvm: ruby-head

Gemfile

@@ -6,20 +6,13 @@ gem 'jruby-openssl', :platforms => :jruby
 
 group :development do
   gem 'pry'
-  platforms :ruby_19, :ruby_20 do
-    gem 'pry-debugger'
-    gem 'pry-stack_explorer'
-  end
 end
 
 group :test do
   gem 'backports'
   gem 'coveralls'
-  gem 'json', :platforms => [:rbx, :ruby_19, :ruby_18]
-  gem 'mime-types', '~> 1.25', :platforms => [:jruby, :ruby_18]
-  gem 'rest-client', '~> 1.6.0', :platforms => [:jruby, :ruby_18]
   gem 'rspec', '>= 2.11'
-  gem 'rubocop', '>= 0.23', :platforms => [:ruby_19, :ruby_20, :ruby_21]
+  gem 'rubocop', '>= 0.23'
   gem 'simplecov', '>= 0.9'
   gem 'webmock'
   gem 'yardstick'

README.md

@@ -119,8 +119,6 @@ Ruby wrapper for the RubyGems.org API.
 This library aims to support and is [tested against][travis] the following Ruby
 implementations:
 
-* Ruby 1.8.7
-* Ruby 1.9.2
 * Ruby 1.9.3
 * Ruby 2.0.0
 * Ruby 2.1.0

gems.gemspec

@@ -17,6 +17,7 @@ Gem::Specification.new do |spec|
   spec.licenses      = %w(MIT)
   spec.name          = 'gems'
   spec.require_paths = %w(lib)
+  spec.required_ruby_version = '>= 1.9.3'
   spec.summary       = spec.description
   spec.test_files    = Dir.glob('spec/**/*')
   spec.version       = Gems::VERSION

lib/gems/request.rb

@@ -52,7 +52,7 @@ def request(method, path, data, content_type, request_host = host) # rubocop:dis
     end
 
     def hash_to_query_string(hash)
-      hash.keys.inject('') do |query_string, key|
+      hash.keys.each_with_object('') do |key, query_string|
         query_string << '&' unless key == hash.keys.first
         query_string << "#{URI.encode(key.to_s)}=#{URI.encode(hash[key])}"
       end