@wapython/wasi/dist/unzip.js

Javascript library for interacting with WASI Modules in Node.js and the Browser.

"use strict";
var __values = (this && this.__values) || function(o) {
    var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
    if (m) return m.call(o);
    if (o && typeof o.length === "number") return {
        next: function () {
            if (o && i >= o.length) o = void 0;
            return { value: o && o[i++], done: !o };
        }
    };
    throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
var __read = (this && this.__read) || function (o, n) {
    var m = typeof Symbol === "function" && o[Symbol.iterator];
    if (!m) return o;
    var i = m.call(o), r, ar = [], e;
    try {
        while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
    }
    catch (error) { e = { error: error }; }
    finally {
        try {
            if (r && !r.done && (m = i["return"])) m.call(i);
        }
        finally { if (e) throw e.error; }
    }
    return ar;
};
Object.defineProperty(exports, "__esModule", { value: true });
var path_1 = require("path");
var fflate_1 = require("fflate");
function unzip(_a) {
    var e_1, _b;
    var data = _a.data, fs = _a.fs, directory = _a.directory;
    // const t0 = new Date().valueOf();
    if (data instanceof ArrayBuffer) {
        data = new Uint8Array(data);
    }
    if (!(data instanceof Uint8Array)) {
        throw Error("impossible"); // was converted above. this is for typescript.
    }
    var z = (0, fflate_1.unzipSync)(data);
    try {
        for (var _c = __values(Object.entries(z)), _d = _c.next(); !_d.done; _d = _c.next()) {
            var _e = __read(_d.value, 2), relativePath = _e[0], content = _e[1];
            var outputFilename = (0, path_1.join)(directory, relativePath);
            fs.mkdirSync((0, path_1.dirname)(outputFilename), { recursive: true });
            fs.writeFileSync(outputFilename, content);
        }
    }
    catch (e_1_1) { e_1 = { error: e_1_1 }; }
    finally {
        try {
            if (_d && !_d.done && (_b = _c.return)) _b.call(_c);
        }
        finally { if (e_1) throw e_1.error; }
    }
    //   console.log(
    //     `extract ${data.length / 10 ** 6} MB in ${new Date().valueOf() - t0}ms`
    //   );
}
exports.default = unzip;
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