codekingpro/portable-devtools

1// tar -x
2import * as fsm from '@isaacs/fs-minipass';
3import fs from 'node:fs';
4import { filesFilter } from './list.js';
5import { makeCommand } from './make-command.js';
6import { Unpack, UnpackSync } from './unpack.js';
7const extractFileSync = (opt) => {
8    const u = new UnpackSync(opt);
9    const file = opt.file;
10    const stat = fs.statSync(file);
11    // This trades a zero-byte read() syscall for a stat
12    // However, it will usually result in less memory allocation
13    const readSize = opt.maxReadSize || 16 * 1024 * 1024;
14    const stream = new fsm.ReadStreamSync(file, {
15        readSize: readSize,
16        size: stat.size,
17    });
18    stream.pipe(u);
19};
20const extractFile = (opt, _) => {
21    const u = new Unpack(opt);
22    const readSize = opt.maxReadSize || 16 * 1024 * 1024;
23    const file = opt.file;
24    const p = new Promise((resolve, reject) => {
25        u.on('error', reject);
26        u.on('close', resolve);
27        // This trades a zero-byte read() syscall for a stat
28        // However, it will usually result in less memory allocation
29        fs.stat(file, (er, stat) => {
30            if (er) {
31                reject(er);
32            }
33            else {
34                const stream = new fsm.ReadStream(file, {
35                    readSize: readSize,
36                    size: stat.size,
37                });
38                stream.on('error', reject);
39                stream.pipe(u);
40            }
41        });
42    });
43    return p;
44};
45export const extract = makeCommand(extractFileSync, extractFile, opt => new UnpackSync(opt), opt => new Unpack(opt), (opt, files) => {
46    if (files?.length)
47        filesFilter(opt, files);
48});
49//# sourceMappingURL=extract.js.map