1 files changed, 63 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/HashedModuleIdsPlugin.js b/node_modules/webpack/lib/HashedModuleIdsPlugin.js
new file mode 100644
index 0000000..7a860f7
--- /dev/null
+++ b/node_modules/webpack/lib/HashedModuleIdsPlugin.js
@@ -0,0 +1,63 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+"use strict";
+const createHash = require("./util/createHash");
+
+const validateOptions = require("schema-utils");
+const schema = require("../schemas/plugins/HashedModuleIdsPlugin.json");
+
+/** @typedef {import("../declarations/plugins/HashedModuleIdsPlugin").HashedModuleIdsPluginOptions} HashedModuleIdsPluginOptions */
+
+class HashedModuleIdsPlugin {
+	/**
+	 * @param {HashedModuleIdsPluginOptions=} options options object
+	 */
+	constructor(options) {
+		if (!options) options = {};
+
+		validateOptions(schema, options, "Hashed Module Ids Plugin");
+
+		/** @type {HashedModuleIdsPluginOptions} */
+		this.options = Object.assign(
+			{
+				context: null,
+				hashFunction: "md4",
+				hashDigest: "base64",
+				hashDigestLength: 4
+			},
+			options
+		);
+	}
+
+	apply(compiler) {
+		const options = this.options;
+		compiler.hooks.compilation.tap("HashedModuleIdsPlugin", compilation => {
+			const usedIds = new Set();
+			compilation.hooks.beforeModuleIds.tap(
+				"HashedModuleIdsPlugin",
+				modules => {
+					for (const module of modules) {
+						if (module.id === null && module.libIdent) {
+							const id = module.libIdent({
+								context: this.options.context || compiler.options.context
+							});
+							const hash = createHash(options.hashFunction);
+							hash.update(id);
+							const hashId = /** @type {string} */ (hash.digest(
+								options.hashDigest
+							));
+							let len = options.hashDigestLength;
+							while (usedIds.has(hashId.substr(0, len))) len++;
+							module.id = hashId.substr(0, len);
+							usedIds.add(module.id);
+						}
+					}
+				}
+			);
+		});
+	}
+}
+
+module.exports = HashedModuleIdsPlugin;