Merge branch 'tomhughes-svgo'

CHANGELOG.markdown

@@ -5,6 +5,7 @@
 * Unify getting description of option default value using `default_description` [@toy](https://github.com/toy)
 * Don't use `-strip` option for optipng when the bin version is less than 0.7 [#106](https://github.com/toy/image_optim/issues/106) [@toy](https://github.com/toy)
 * Use quality `0..100` by default in lossy mode of pngquant worker [#77](https://github.com/toy/image_optim/issues/77) [@toy](https://github.com/toy)
+* Add `:disable_plugins` and `:enable_plugins` options to `svgo` worker [#110](https://github.com/toy/image_optim/pull/110) [@tomhughes](https://github.com/tomhughes)
 
 ## v0.21.0 (2015-05-30)
 

README.markdown

@@ -320,7 +320,8 @@ Worker has no options
 * `:speed` — speed/quality trade-off: `1` - slow, `3` - default, `11` - fast & rough *(defaults to `3`)*
 
 ### svgo:
-Worker has no options
+* `:disable_plugins` — List of plugins to disable *(defaults to `[]`)*
+* `:enable_plugins` — List of plugins to enable *(defaults to `[]`)*
 
 <!---</worker-options>-->
 

lib/image_optim/worker/svgo.rb

@@ -4,11 +4,27 @@ class ImageOptim
   class Worker
     # https://github.com/svg/svgo
     class Svgo < Worker
+      DISABLE_PLUGINS_OPTION =
+      option(:disable_plugins, [], 'List of plugins to disable') do |v|
+        Array(v).map(&:to_s)
+      end
+
+      ENABLE_PLUGINS_OPTION =
+      option(:enable_plugins, [], 'List of plugins to enable') do |v|
+        Array(v).map(&:to_s)
+      end
+
       def optimize(src, dst)
         args = %W[
           --input #{src}
           --output #{dst}
         ]
+        disable_plugins.each do |plugin_name|
+          args.unshift "--disable=#{plugin_name}"
+        end
+        enable_plugins.each do |plugin_name|
+          args.unshift "--enable=#{plugin_name}"
+        end
         execute(:svgo, *args) && optimized?(src, dst)
       end
     end