small update + readme note

Author: mightyaleksey

README.md

@@ -183,6 +183,10 @@ hook({
 });
 ```
 
+### `camelCase boolean`
+
+Camelizes exported class names. Similar to [css-loader?camelCase](https://github.com/webpack/css-loader#camel-case).
+
 ### `append` array
 
 Appends custom plugins to the end of the PostCSS pipeline. Since the `require` function is synchronous, you should provide synchronous plugins only.

lib/index.js

@@ -6,6 +6,7 @@ const globToRegex = require('glob-to-regexp');
 const identity = require('lodash').identity;
 const negate = require('lodash').negate;
 const camelCaseFunc = require('lodash').camelCase;
+const mapKeys = require('lodash').mapKeys;
 const readFileSync = require('fs').readFileSync;
 const relative = require('path').relative;
 const resolve = require('path').resolve;
@@ -106,8 +107,7 @@ module.exports = function setupHook({
     tokens = lazyResult.root.tokens;
 
     if (camelCase) {
-      tokens = Object.assign({}, tokens,
-        ...Object.keys(tokens).map(key => ({ [camelCaseFunc(key)]: tokens[key] })))
+      tokens = assign(mapKeys(tokens, (value, key) => camelCaseFunc(key)), tokens);
     }
 
     if (!debugMode) {