add curl_command as serverspec extension

lib/voxpupuli/acceptance/serverspec_extensions.rb

@@ -0,0 +1,12 @@
+require 'serverspec'
+require_relative 'serverspec_extensions/curl_command'
+
+module Serverspec
+  module Helper
+    module Type
+      def curl_command(*args)
+        Voxpupuli::Acceptance::ServerspecExtensions::CurlCommand.new(*args)
+      end
+    end
+  end
+end

lib/voxpupuli/acceptance/serverspec_extensions/curl_command.rb

@@ -0,0 +1,56 @@
+# written by https://github.com/ekohl
+# https://github.com/mizzy/serverspec/pull/611 was rejected so adding it here.
+
+require 'serverspec'
+
+module Voxpupuli
+  module Acceptance
+    module ServerspecExtensions
+      class CurlCommand < Serverspec::Type::Command
+        def response_code
+          m = %r{Response-Code: (?<code>\d+)}.match(stderr)
+          return 0 unless m
+
+          m[:code].to_i
+        end
+
+        def body
+          command_result.stdout
+        end
+
+        def body_as_json
+          MultiJson.load(body)
+        end
+
+        private
+
+        def curl_command
+          command = "curl --silent --write-out '%{stderr}Response-Code: %{response_code}\\n' '#{@name}'"
+
+          @options.each do |option, value|
+            case option
+            when :cacert, :cert, :key
+              command += " --#{option} '#{value}'"
+            when :headers
+              value.each do |header, header_value|
+                command += if header_value
+                             " --header '#{header}: #{header_value}'"
+                           else
+                             " --header '#{header};'"
+                           end
+              end
+            else
+              raise "Unknown option #{option} (value: #{value})"
+            end
+          end
+
+          command
+        end
+
+        def command_result
+          @command_result ||= @runner.run_command(curl_command)
+        end
+      end
+    end
+  end
+end