feat: generate more collision resistant localIdentHash'es

Author: subzey

src/utils.js

@@ -359,21 +359,30 @@ function defaultGetLocalIdent(
     );
   }
 
-  // eslint-disable-next-line no-underscore-dangle
-  const hash = loaderContext._compiler.webpack.util.createHash(hashFunction);
-  const { hashSalt } = options;
+  let localIdentHash = "";
+  for (
+    const tierSalt = Uint32Array.of(0);
+    localIdentHash.length < hashDigestLength;
+    tierSalt[0]++
+  ) {
+    // eslint-disable-next-line no-underscore-dangle
+    const hash = loaderContext._compiler.webpack.util.createHash(hashFunction);
+    const { hashSalt } = options;
 
-  if (hashSalt) {
-    hash.update(hashSalt);
-  }
+    if (hashSalt) {
+      hash.update(hashSalt);
+    }
+
+    hash.update(tierSalt);
 
-  hash.update(options.content);
+    hash.update(options.content);
 
-  const localIdentHash = hash
-    .digest(hashDigest)
-    .slice(0, hashDigestLength)
-    .replace(/[/+]/g, "_")
-    .replace(/^\d/g, "_");
+    localIdentHash = (localIdentHash + hash.digest(hashDigest))
+      .replace(/^\d+/, "")
+      .slice(0, hashDigestLength)
+      .replace(/\+/g, "-")
+      .replace(/\//g, "_");
+  }
 
   // TODO need improve on webpack side, we should allow to pass hash/contentHash without chunk property, also `data` for `getPath` should be looks good without chunk property
   const ext = path.extname(resourcePath);