Add SVG support from image_optim.

[Closes plasticine#12]

README.md

@@ -41,7 +41,7 @@ activate :imageoptim do |options|
   options.threads = true
 
   # Image extensions to attempt to compress
-  options.image_extensions = %w(.png .jpg .gif)
+  options.image_extensions = %w(.png .jpg .gif .svg)
 
   # compressor worker options, individual optimisers can be disabled by passing
   # false instead of a hash
@@ -52,6 +52,7 @@ activate :imageoptim do |options|
   options.jpegoptim_options = {:strip => ['all'], :max_quality => 100}
   options.jpegtran_options  = {:copy_chunks => false, :progressive => true, :jpegrescan => true}
   options.gifsicle_options  = {:interlace => false}
+  options.svgo_options      = {}
 end
 ```
 

lib/middleman-imageoptim/optimizer.rb

@@ -85,7 +85,8 @@ def optimizer
           :advpng    => @options.advpng_options,
           :jpegoptim => @options.jpegoptim_options,
           :jpegtran  => @options.jpegtran_options,
-          :gifsicle  => @options.gifsicle_options
+          :gifsicle  => @options.gifsicle_options,
+          :svgo      => @options.svgo_options
         )
       end
 

lib/middleman-imageoptim/options.rb

@@ -7,11 +7,11 @@ class Options
       attr_accessor :user_options
       attr_reader :verbose, :nice, :threads, :image_extensions,
         :pngcrush_options, :pngout_options, :optipng_options, :advpng_options,
-        :jpegoptim_options, :jpegtran_options, :gifsicle_options
+        :jpegoptim_options, :jpegtran_options, :gifsicle_options, :svgo_options
 
       UserOptions = Struct.new(:verbose, :nice, :threads, :image_extensions,
         :pngcrush_options, :pngout_options, :optipng_options, :advpng_options,
-        :jpegoptim_options, :jpegtran_options, :gifsicle_options)
+        :jpegoptim_options, :jpegtran_options, :gifsicle_options, :svgo_options)
 
       def initialize(options_hash = {})
         @user_options = UserOptions.new(*options_hash)
@@ -30,7 +30,7 @@ def threads
       end
 
       def image_extensions
-        !@user_options.image_extensions.nil? ? @user_options.image_extensions : %w(.png .jpg .jpeg .gif)
+        !@user_options.image_extensions.nil? ? @user_options.image_extensions : %w(.png .jpg .jpeg .gif .svg)
       end
 
       def pngcrush_options
@@ -60,6 +60,10 @@ def jpegtran_options
       def gifsicle_options
         !@user_options.gifsicle_options.nil? ? @user_options.gifsicle_options : {:interlace => false}
       end
+
+      def svgo_options
+        !@user_options.svgo_options.nil? ? @user_options.svgo_options : {}
+      end
     end
   end
 end

spec/unit/options_spec.rb

@@ -8,14 +8,15 @@
     its(:verbose) { should be_false }
     its(:nice) { should be_true }
     its(:threads) { should be_true }
-    its(:image_extensions) { should == ['.png', '.jpg', '.jpeg', '.gif'] }
+    its(:image_extensions) { should == ['.png', '.jpg', '.jpeg', '.gif', '.svg'] }
     its(:pngcrush_options) { should == {:chunks => ['alla'], :fix => false, :brute => false} }
     its(:pngout_options) { should == {:copy_chunks => false, :strategy => 0} }
     its(:optipng_options) { should == {:level => 6, :interlace => false} }
     its(:advpng_options) { should == {:level => 4} }
     its(:jpegoptim_options) { should == {:strip => ['all'], :max_quality => 100} }
     its(:jpegtran_options) { should == {:copy_chunks => false, :progressive => true, :jpegrescan => true} }
     its(:gifsicle_options) { should == {:interlace => false} }
+    its(:svgo_options) { should == {} }
   end
 
   describe "with user options" do
@@ -73,5 +74,10 @@
       let(:options_hash) { {gifsicle_options: {foo: 'bar'}} }
       subject { options.gifsicle_options().should == {foo: 'bar'} }
     end
+
+    describe "#svgo_options" do
+      let(:options_hash) { {svgo_options: {foo: 'bar'}} }
+      subject { options.svgo_options().should == {foo: 'bar'} }
+    end
   end
 end