Add class method to set global default timeout

Closes gh-36

lib/httparty.rb

@@ -94,6 +94,18 @@ module HTTParty
       default_options[:default_params].merge!(h)
     end
 
+    # Allows setting a default timeout for all HTTP calls
+    # Timeout is specified in seconds.
+    #
+    #   class Foo
+    #     include HTTParty
+    #     default_timeout 10
+    #   end
+    def default_timeout(t)
+      raise ArgumentError, 'Timeout must be an integer' unless t && t.is_a?(Integer)
+      default_options[:timeout] = t
+    end
+
     # Set an output stream for debugging, defaults to $stderr.
     # The output stream is passed on to Net::HTTP#set_debug_output.
     #

spec/httparty_spec.rb

@@ -203,6 +203,17 @@ describe HTTParty do
     end
   end
 
+  describe "default timeout" do
+    it "should default to nil" do
+      @klass.default_options[:timeout].should == nil
+    end
+
+    it "should support updating" do
+      @klass.default_timeout 10
+      @klass.default_options[:timeout].should == 10
+    end
+  end
+
   describe "debug_output" do
     it "stores the given stream as a default_option" do
       @klass.debug_output $stdout