tar/dist/commonjs/extract.js

tar for node

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
    __setModuleDefault(result, mod);
    return result;
};
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.extract = void 0;
// tar -x
const fsm = __importStar(require("@isaacs/fs-minipass"));
const node_fs_1 = __importDefault(require("node:fs"));
const node_path_1 = require("node:path");
const options_js_1 = require("./options.js");
const strip_trailing_slashes_js_1 = require("./strip-trailing-slashes.js");
const unpack_js_1 = require("./unpack.js");
function extract(opt_, files, cb) {
    if (typeof opt_ === 'function') {
        ;
        (cb = opt_), (files = undefined), (opt_ = {});
    }
    else if (Array.isArray(opt_)) {
        ;
        (files = opt_), (opt_ = {});
    }
    if (typeof files === 'function') {
        ;
        (cb = files), (files = undefined);
    }
    if (!files) {
        files = [];
    }
    else {
        files = Array.from(files);
    }
    const opt = (0, options_js_1.dealias)(opt_);
    if (opt.sync && typeof cb === 'function') {
        throw new TypeError('callback not supported for sync tar functions');
    }
    if (!opt.file && typeof cb === 'function') {
        throw new TypeError('callback only supported with file option');
    }
    if (files.length) {
        filesFilter(opt, files);
    }
    return (0, options_js_1.isSyncFile)(opt)
        ? extractFileSync(opt)
        : (0, options_js_1.isFile)(opt)
            ? extractFile(opt, cb)
            : (0, options_js_1.isSync)(opt)
                ? extractSync(opt)
                : extract_(opt);
}
exports.extract = extract;
// construct a filter that limits the file entries listed
// include child entries if a dir is included
const filesFilter = (opt, files) => {
    const map = new Map(files.map(f => [(0, strip_trailing_slashes_js_1.stripTrailingSlashes)(f), true]));
    const filter = opt.filter;
    const mapHas = (file, r = '') => {
        const root = r || (0, node_path_1.parse)(file).root || '.';
        let ret;
        if (file === root)
            ret = false;
        else {
            const m = map.get(file);
            if (m !== undefined) {
                ret = m;
            }
            else {
                ret = mapHas((0, node_path_1.dirname)(file), root);
            }
        }
        map.set(file, ret);
        return ret;
    };
    opt.filter = filter
        ? (file, entry) => filter(file, entry) && mapHas((0, strip_trailing_slashes_js_1.stripTrailingSlashes)(file))
        : file => mapHas((0, strip_trailing_slashes_js_1.stripTrailingSlashes)(file));
};
const extractFileSync = (opt) => {
    const u = new unpack_js_1.UnpackSync(opt);
    const file = opt.file;
    const stat = node_fs_1.default.statSync(file);
    // This trades a zero-byte read() syscall for a stat
    // However, it will usually result in less memory allocation
    const readSize = opt.maxReadSize || 16 * 1024 * 1024;
    const stream = new fsm.ReadStreamSync(file, {
        readSize: readSize,
        size: stat.size,
    });
    stream.pipe(u);
};
const extractFile = (opt, cb) => {
    const u = new unpack_js_1.Unpack(opt);
    const readSize = opt.maxReadSize || 16 * 1024 * 1024;
    const file = opt.file;
    const p = new Promise((resolve, reject) => {
        u.on('error', reject);
        u.on('close', resolve);
        // This trades a zero-byte read() syscall for a stat
        // However, it will usually result in less memory allocation
        node_fs_1.default.stat(file, (er, stat) => {
            if (er) {
                reject(er);
            }
            else {
                const stream = new fsm.ReadStream(file, {
                    readSize: readSize,
                    size: stat.size,
                });
                stream.on('error', reject);
                stream.pipe(u);
            }
        });
    });
    return cb ? p.then(cb, cb) : p;
};
const extractSync = (opt) => new unpack_js_1.UnpackSync(opt);
const extract_ = (opt) => new unpack_js_1.Unpack(opt);
//# sourceMappingURL=extract.js.map