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app_vue/node_modules/webpack/lib/util/generateDebugId.js

@@ -0,0 +1,33 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Alexander Akait @alexander-akait
+*/
+
+"use strict";
+
+const createHash = require("./createHash");
+
+/**
+ * @param {string | Buffer} content content
+ * @param {string} file file
+ * @returns {string} generated debug id
+ */
+module.exports = (content, file) => {
+	// We need a uuid which is 128 bits so we need 2x 64 bit hashes.
+	// The first 64 bits is a hash of the source.
+	const sourceHash = createHash("xxhash64").update(content).digest("hex");
+	// The next 64 bits is a hash of the filename and sourceHash
+	const hash128 = `${sourceHash}${createHash("xxhash64")
+		.update(file)
+		.update(sourceHash)
+		.digest("hex")}`;
+
+	return [
+		hash128.slice(0, 8),
+		hash128.slice(8, 12),
+		`4${hash128.slice(12, 15)}`,
+		((Number.parseInt(hash128.slice(15, 16), 16) & 3) | 8).toString(16) +
+			hash128.slice(17, 20),
+		hash128.slice(20, 32)
+	].join("-");
+};