Make version quality fully configurable

Author: Hans Kristian Flaatten

README.md

@@ -35,6 +35,7 @@ Resize a given source `image` into several `versions`.
   * **string** `path` - complete path to source image
 * **object** `output` - image resize output config
   * **string** `prefix` image versions name prefix (default `""`)
+  * **integrer** `quality` - global version quality (default `80`)
   * **object[]** `versions` - array of version objects
     * **string** `suffix` - suffix for the resized image (ex. `-small`)
     * **integer** `maxWidth` - max width for resized image

index.js

@@ -78,6 +78,7 @@ module.exports.cmd = function(image, output) {
 
     version.prefix = version.prefix || output.prefix || '';
     version.suffix = version.suffix || '';
+    version.quality = version.quality || output.quality || 80;
 
     cmd.push(module.exports.cmdVersion(image, version, last));
   }
@@ -101,7 +102,9 @@ module.exports.cmdVersion = function(image, version, last) {
   cmd.push(sprintf('mpr:%s', image.path));
 
   // -quality
-  cmd.push(sprintf('-quality %d', version.quality || 80));
+  if (version.quality) {
+    cmd.push(sprintf('-quality %d', version.quality));
+  }
 
   // -background
   if (version.background) {