@dpkit/zip/build/package/load.js

Fast TypeScript data management framework built on top of the Data Package standard and Polars DataFrames

import { createWriteStream } from "node:fs";
import { mkdir, rm } from "node:fs/promises";
import { join } from "node:path";
import { pipeline } from "node:stream/promises";
import { loadPackageDescriptor } from "@dpkit/core";
import { temporaryDirectory } from "tempy";
import yauzl from "yauzl-promise";
export async function loadPackageFromZip(archivePath) {
    const tempdir = temporaryDirectory();
    const zipfile = await yauzl.open(archivePath);
    try {
        for await (const entry of zipfile) {
            const path = join(tempdir, entry.filename);
            if (entry.filename.endsWith("/")) {
                await mkdir(path, { recursive: true });
                continue;
            }
            const readStream = await entry.openReadStream();
            const writeStream = createWriteStream(path);
            await pipeline(readStream, writeStream);
        }
    }
    finally {
        await zipfile.close();
    }
    const dataPackage = await loadPackageDescriptor(join(tempdir, "dataPackage.json"));
    const cleanup = async () => {
        await rm(tempdir, { recursive: true, force: true });
    };
    return { dataPackage, cleanup };
}
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