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Fix issue #44, make decompress work in NodeJS (use Worker only where possible).

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This commit is contained in:
Jeff Schiller 2023-12-11 22:00:35 -08:00
parent 5ad89892bd
commit f71c893f63
6 changed files with 59 additions and 34 deletions
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36
archive/decompress.js
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@ -28,9 +28,9 @@ export {
}
/**
* All extracted files returned by an Unarchiver will implement
* the following interface:
*/
* All extracted files returned by an Unarchiver will implement
* the following interface:
*/
/**
* @typedef UnarchivedFile
@ -43,23 +43,27 @@ export {
*/
/**
* Creates a WebWorker with the given decompressor implementation (e.g. unzip.js)
* and transfers a MessagePort for communication. Returns a Promise to the Worker.
* Connects the MessagePort to the unarchiver implementation (e.g. unzip.js). If Workers exist
* (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<*>} Returns a Promise that resolves to the Worker object.
* @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 = (pathToBitJS, implFilename, implPort) => {
return new Promise((resolve, reject) => {
const worker = new Worker(pathToBitJS + 'archive/unarchiver-webworker.js', {
type: 'module'
const connectPortFn = async (pathToBitJS, implFilename, implPort) => {
if (typeof Worker === 'undefined') {
return import(`${implFilename}`).then(implModule => {
implModule.connect(implPort)
});
}
worker.postMessage({ implSrc: (pathToBitJS + implFilename), }, [implPort]);
resolve(worker);
return new Promise((resolve, reject) => {
const worker = new Worker(pathToBitJS + 'archive/unarchiver-webworker.js', { type: 'module' });
worker.postMessage({ implSrc: implFilename }, [implPort]);
resolve();
});
};