For issue #44, remove the need for a pathToBitJS while unarchiving.

archive/compress.js

@@ -130,6 +130,8 @@ export class Zipper {
    */
   start(files, isLastFile) {
     return new Promise((resolve, reject) => {
+      // TODO: Only use Worker if it exists (like decompress).
+      // TODO: Remove need for pathToBitJS (like decompress).
       this.worker_ = new Worker(this.pathToBitJS + `archive/zip.js`);
       this.worker_.onerror = (evt) => {
         console.log('Worker error: message = ' + evt.message);

archive/decompress-internal.js

@@ -9,6 +9,9 @@
  * Copyright(c) 2021 Google Inc.
  */
 
+// TODO(bitjs): Consider moving all this back into decompress.js to simplify the code now that
+//     the implementation isn't tied to Web Workers so heavily.
+
 import { UnarchiveAppendEvent, UnarchiveErrorEvent, UnarchiveEvent, UnarchiveEventType,
          UnarchiveExtractEvent, UnarchiveFinishEvent, UnarchiveInfoEvent,
          UnarchiveProgressEvent, UnarchiveStartEvent } from './events.js';
@@ -20,11 +23,12 @@ import { findMimeType } from '../file/sniffer.js';
  * @property {Uint8Array} fileData
  */
 
+// TODO: Remove pathToBitJS completely from this.
+
 /**
  * @typedef UnarchiverOptions
  * @property {string} pathToBitJS The path to the bitjs folder.
  * @property {boolean=} debug Set to true for verbose unarchiver logging.
- * @property {ThreadingMode=} threadingMode The default is WEB_WORKER.
  */
 
 /**
@@ -72,13 +76,6 @@ export class Unarchiver extends EventTarget {
      */
     this.connectPortFn_ = connectPortFn;
 
-    /**
-     * The path to the BitJS files.
-     * @type {string}
-     * @private
-     */
-    this.pathToBitJS_ = options.pathToBitJS || '/';
-
     /**
      * @orivate
      * @type {boolean}
@@ -160,8 +157,7 @@ export class Unarchiver extends EventTarget {
     const me = this;
     const messageChannel = new MessageChannel();
     this.port_ = messageChannel.port1;
-    this.connectPortFn_(this.pathToBitJS_,
-        this.getScriptFileName(), messageChannel.port2).then(() => {
+    this.connectPortFn_(this.getScriptFileName(), messageChannel.port2).then(() => {
       this.port_.onerror = function (e) {
         console.log('Impl error: message = ' + e.message);
         throw e;

archive/decompress.js

@@ -47,21 +47,19 @@ export {
  * (e.g. web browsers or deno), imports the implementation inside a Web Worker. Otherwise, it
  * dynamically imports the implementation inside the current JS context.
  * The MessagePort is used for communication between host and implementation.
- * @param {string} pathToBitJS The path to the bitjs folder.
  * @param {string} implFilename The decompressor implementation filename relative to this path
  *     (e.g. './unzip.js').
  * @param {MessagePort} implPort The MessagePort to connect to the decompressor implementation.
  * @returns {Promise<void>} The Promise resolves once the ports are connected.
  */
-const connectPortFn = async (pathToBitJS, implFilename, implPort) => {
+const connectPortFn = async (implFilename, implPort) => {
   if (typeof Worker === 'undefined') {
-    return import(`${implFilename}`).then(implModule => {
-      implModule.connect(implPort)
-    });
+    return import(`${implFilename}`).then(implModule => implModule.connect(implPort));
   }
-
+  
   return new Promise((resolve, reject) => {
-    const worker = new Worker(pathToBitJS + 'archive/unarchiver-webworker.js', { type: 'module' });
+    const workerScriptPath = new URL(`./unarchiver-webworker.js`, import.meta.url).href;
+    const worker = new Worker(workerScriptPath, { type: 'module' });
     worker.postMessage({ implSrc: implFilename }, [implPort]);
     resolve();
   });