Allow optional custom svgmin plugins

index.js

@@ -7,7 +7,7 @@ var Elixir = require('laravel-elixir');
 
 var config = Elixir.config;
 
-Elixir.extend('svgstore', function(baseDir, output, filename) {
+Elixir.extend('svgstore', function(baseDir, output, filename, plugins) {
   config.svg = {
     folder: 'svg',
     outputFolder: 'svg'
@@ -24,13 +24,13 @@ Elixir.extend('svgstore', function(baseDir, output, filename) {
         var prefix = path.basename(file.relative, path.extname(file.relative));
 
         return {
-          plugins: [{
+          plugins: plugins || [{
             cleanupIDs: {
               prefix: prefix + '-',
               minify: true
             }
           }]
-        }
+        };
       }))
       .pipe(svgstore())
       .on('error', function (e) {

readme.md

@@ -22,24 +22,45 @@ elixir(function(mix) {
 
 ## Usage
 
-By default, it will look for .svg files within ```resources/assets/svg/``` and outputs
-```sprites.svg``` to ```public/svg/```.
+By default, it will look for .svg files within ```resources/assets/svg/``` and output
+```sprites.svg``` to ```public/svg/```, using the following [svgmin plugins](https://github.com/ben-eb/gulp-svgmin#plugins):
 
-You can optionally pass a source directory, an output directory, and a custom filename:
+```
+...
+
+plugins: [{
+  cleanupIDs: {
+    prefix: prefix + '-',
+    minify: true
+  }
+}]
+```
+
+You can optionally pass custom arguments for:
+
+- source directory
+- output directory
+- filename
+- [svgmin plugins](https://github.com/ben-eb/gulp-svgmin#plugins)
 
 ```js
 ...
 
+var svgminPlugins = [
+  { removeUnknownsAndDefaults: false },
+  { removeUselessStrokeAndFill: false },
+  { collapseGroups: false }
+];
+
 elixir(function(mix) {
-  mix.svgstore('resources/assets/icons', 'public/sprites/', 'icons.svg');
+  mix.svgstore('resources/assets/icons', 'public/sprites/', 'icons.svg', svgminPlugins);
 });
 ```
 
 ## In Your Blade Templates
 
 If you started with a file called ```myicon.svg``` you can display that icon like this:
 
-
 ```html
 <svg style="width: .75em; height: .75em">
   <use xlink:href="svg/sprites.svg#myicon"/>