Lazy load some gems

Only load them when they are used.

Author: orgads

features/steps/mongrel_helper.rb

@@ -30,6 +30,7 @@ def process(request, response)
       reply_with(response, 406, 'No deflate accept encoding found in request')
     else
       response.start do |head, body|
+        require 'zlib'
         head['Content-Encoding'] = 'deflate'
         body.write Zlib::Deflate.deflate(response_body)
       end
@@ -53,6 +54,7 @@ def process(request, response)
   protected
 
   def gzip(string)
+    require 'zlib'
     sio = StringIO.new('', 'r+')
     gz = Zlib::GzipWriter.new sio
     gz.write string

lib/httparty.rb

@@ -3,11 +3,6 @@
 require 'pathname'
 require 'net/http'
 require 'uri'
-require 'zlib'
-require 'multi_xml'
-require 'mime/types'
-require 'json'
-require 'csv'
 
 require 'httparty/module_inheritable_attributes'
 require 'httparty/cookie_hash'

lib/httparty/logger/logstash_formatter.rb

@@ -24,6 +24,7 @@ def format(request, response)
       attr_reader :request, :response
 
       def logstash_message
+        require 'json'
         {
           '@timestamp' => current_time,
           '@version' => 1,

lib/httparty/parser.rb

@@ -118,16 +118,19 @@ def parse
     protected
 
     def xml
+      require 'multi_xml'
       MultiXml.parse(body)
     end
 
     UTF8_BOM = "\xEF\xBB\xBF"
 
     def json
+      require 'json'
       JSON.parse(body, :quirks_mode => true, :allow_nan => true)
     end
 
     def csv
+      require 'csv'
       CSV.parse(body)
     end
 

lib/httparty/request/body.rb

@@ -84,6 +84,7 @@ def content_body(object)
 
       def content_type(object)
         return object.content_type if object.respond_to?(:content_type)
+        require 'mime/types'
         mime = MIME::Types.type_for(object.path)
         mime.empty? ? 'application/octet-stream' : mime[0].content_type
       end

spec/httparty/logger/logstash_formatter_spec.rb

@@ -1,3 +1,4 @@
+require 'json'
 require 'spec_helper'
 
 RSpec.describe HTTParty::Logger::LogstashFormatter do

spec/httparty/parser_spec.rb

@@ -1,4 +1,5 @@
 require 'spec_helper'
+require 'multi_xml'
 
 RSpec.describe HTTParty::Parser do
   describe ".SupportedFormats" do
@@ -183,6 +184,7 @@ def self.name
     end
 
     it "parses csv with CSV" do
+      require 'csv'
       expect(CSV).to receive(:parse).with('body')
       subject.send(:csv)
     end