Handle Psych::SyntaxError issues when parsing invalid YAML

lib/asset_sync/config.rb

@@ -92,7 +92,11 @@ def yml_exists?
     end
 
     def yml
-      @yml ||= YAML.load(ERB.new(IO.read(yml_path)).result)[Rails.env] rescue nil || {}
+      begin
+        @yml ||= YAML.load(ERB.new(IO.read(yml_path)).result)[Rails.env] rescue nil || {}
+      rescue Psych::SyntaxError
+        @yml = {}
+      end
     end
 
     def yml_path

spec/fixtures/with_invalid_yml/config/asset_sync.yml

@@ -0,0 +1,24 @@
+defaults: &defaults
+  fog_provider= "AWS"
+  aws_access_key_id: "xxxx"
+  aws_secret_access_key: "zzzz"
+  region: "eu-west-1"
+
+development:
+  <<: *defaults
+  fog_directory: "rails_app_development"
+  existing_remote_files: keep
+
+test:
+  <<: *defaults
+  fog_directory: "rails_app_test"
+  existing_remote_files: keep
+
+production:
+  <<: *defaults
+  fog_directory: "rails_app_production"
+  existing_remote_files: delete
+
+hybrid:
+  <<: *defaults
+  enabled: false

spec/unit/asset_sync_spec.rb

@@ -193,4 +193,22 @@
     end
   end
 
+  describe 'with invalid yml' do
+
+    before(:each) do
+      set_rails_root('with_invalid_yml')
+      AssetSync.config = AssetSync::Config.new
+    end
+
+    it "config should be invalid" do
+      AssetSync.config.valid?.should be_false
+    end
+
+    it "should raise a config invalid error" do
+      lambda{ AssetSync.sync }.should raise_error(AssetSync::Config::Invalid)
+    end
+
+
+  end
+
 end