use minify

node_modules/minify/lib/img.js

@@ -0,0 +1,33 @@
+'use strict';
+
+const path = require('path');
+const assert = require('assert');
+const {
+    promisify,
+} = require('util');
+
+const fromString = promisify(require('css-b64-images').fromString);
+
+const ONE_KB = Math.pow(2, 10);
+
+const maxSize = 100 * ONE_KB;
+
+/**
+ * minify css data.
+ * if can not minify return data
+ *
+ * @param name
+ * @param data
+ */
+module.exports = async (name, data) => {
+    const dir = path.dirname(name);
+    const dirRelative = dir + '/../';
+    
+    assert(name);
+    assert(data);
+    
+    return fromString(data, dir, dirRelative, {
+        maxSize
+    });
+};
+