changes to css-loader loader file

pussha · pussha · commit 7a3cca5810af · 2019-09-11T17:07:00.000+05:30
diff --git a/lib/getLocalIdent.js b/lib/getLocalIdent.js
@@ -1,23 +1,41 @@
-/*
-	MIT License http://www.opensource.org/licenses/mit-license.php
-	Author Tobias Koppers @sokra
-*/
-var loaderUtils = require("loader-utils");
-var path = require("path");
-
-module.exports = function getLocalIdent(loaderContext, localIdentName, localName, options) {
-	if(!options.context) {
-		if (loaderContext.rootContext) {
-			options.context = loaderContext.rootContext;
-		} else if (loaderContext.options && typeof loaderContext.options.context === "string") {
-			options.context = loaderContext.options.context;
-		} else {
-			options.context = loaderContext.context;
-		}
-	}
-	var request = path.relative(options.context, loaderContext.resourcePath);
-	options.content = options.hashPrefix + request + "+" + localName;
-	localIdentName = localIdentName.replace(/\[local\]/gi, localName);
-	var hash = loaderUtils.interpolateName(loaderContext, localIdentName, options);
-	return hash.replace(new RegExp("[^a-zA-Z0-9\\-_\u00A0-\uFFFF]", "g"), "-").replace(/^((-?[0-9])|--)/, "_$1");
+import incstr from 'incstr';
+
+//region CSS Scope Minify
+const createUniqueIdGenerator = () => {
+    const index = {};
+
+    const generateNextId = incstr.idGenerator({
+        // Removed "d" letter to avoid accidental "ad" construct.
+        // @see https://medium.com/@mbrevda/just-make-sure-ad-isnt-being-used-as-a-class-name-prefix-or-you-might-suffer-the-wrath-of-the-558d65502793
+        // NOTE: allow "d" letter due to combination of UPPERCASES-lowercases
+        alphabet: 'abcdefghijklmnopqrstuvwxyz0123456789_-'
+    });
+
+    return (name) => {
+        if (index[name]) {
+            return index[name];
+        }
+
+        let nextId;
+
+        do {
+            // Class name cannot start with a number.
+            nextId = generateNextId();
+        } while (/^[0-9_-]/.test(nextId));
+
+        index[name] = generateNextId();
+        // console.log(`${name} has id = ${index[name]}`);
+
+        return index[name];
+    };
 };
+
+const idLocal = createUniqueIdGenerator(), idComponent = createUniqueIdGenerator();
+const generateScopedName = (localName, resourcePath) => {
+    const componentName = resourcePath.split('/').slice(-2).join('/');
+    return idComponent(componentName).toUpperCase() + idLocal(localName);
+};
+
+const getLocalIdent = (context, localIdentName, localName) => generateScopedName(localName, context.resourcePath);
+global.getLocalIdent = getLocalIdent;
+//endregion
diff --git a/lib/loader.js b/lib/loader.js
@@ -19,6 +19,10 @@ module.exports = function(content, map) {
 	var sourceMap = query.sourceMap || false;
 	var resolve = createResolver(query.alias);
 
+	if(global && global.getLocalIdent){
+		query.getLocalIdent = global.getLocalIdent;
+	}
+
 	if(sourceMap) {
 		if (map) {
 			if (typeof map === "string") {
