add raw on transformation

Author: bishosilwal

lib/imagekitio/constants/supported_transformation.rb

@@ -57,6 +57,7 @@ module SupportedTransformation
         'effect_contrast': "e-contrast",
         'effect_gray': "e-grayscale",
         'original': "orig",
+        'raw': 'raw',
       }
     end
   end

lib/imagekitio/url.rb

@@ -161,6 +161,8 @@ def transformation_to_str(transformation)
 
           if transformation[i][key] == "-"
             parsed_transform_step.push(transform_key)
+          elsif transform_key == 'raw'
+            parsed_transform_step.push(transformation[i][key])
           else
             parsed_transform_step.push("#{transform_key}#{constants.TRANSFORM_KEY_VALUE_DELIMITER}#{transformation[i][key]}")
           end

test/imagekit/url_test.rb

@@ -196,10 +196,11 @@
                                      effect_contrast: true,
                                      effect_gray: true,
                                      original: true,
+                                     raw: 'w-200,h-200'
                                    },]
       }
       url = url_obj.generate_url(options)
-      expect(url).to eq("https://imagekit.io/your-imgekit-id/tr:h-300,w-400,ar-4-3,q-40,c-force,cm-extract,fo-left,f-jpeg,r-50,bg-A94D34,b-5-A94D34,rt-90,bl-10,n-some_name,ox-35,oy-35,ofo-bottom,oh-20,ow-20,oi-folder@@file.jpg,oit-false,oiar-4:3,oibg-0F0F0F,oib-10_0F0F0F,oidpr-2,oiq-50,oic-force,ot-two words,ots-20,otf-Open Sans,otc-00FFFF,oa-5,ott-b,obg-00AAFF55,ote-b3ZlcmxheSBtYWRlIGVhc3k%3D,otw-50,otbg-00AAFF55,otp-40,otia-left,or-10,pr-true,lo-true,t-5,md-true,cp-true,di-folder@@file.jpg,dpr-3,e-sharpen-10,e-usm-2-2-0.8-0.024,e-contrast-true,e-grayscale-true,orig-true/default-image.jpg?ik-sdk-version=ruby-#{ImageKitIo::Sdk::VERSION}")
+      expect(url).to eq("https://imagekit.io/your-imgekit-id/tr:h-300,w-400,ar-4-3,q-40,c-force,cm-extract,fo-left,f-jpeg,r-50,bg-A94D34,b-5-A94D34,rt-90,bl-10,n-some_name,ox-35,oy-35,ofo-bottom,oh-20,ow-20,oi-folder@@file.jpg,oit-false,oiar-4:3,oibg-0F0F0F,oib-10_0F0F0F,oidpr-2,oiq-50,oic-force,ot-two words,ots-20,otf-Open Sans,otc-00FFFF,oa-5,ott-b,obg-00AAFF55,ote-b3ZlcmxheSBtYWRlIGVhc3k%3D,otw-50,otbg-00AAFF55,otp-40,otia-left,or-10,pr-true,lo-true,t-5,md-true,cp-true,di-folder@@file.jpg,dpr-3,e-sharpen-10,e-usm-2-2-0.8-0.024,e-contrast-true,e-grayscale-true,orig-true,w-200,h-200/default-image.jpg?ik-sdk-version=ruby-#{ImageKitIo::Sdk::VERSION}")
     end
 
     it "test_generate_url_with_chained_transformation" do