codekingpro/portable-devtools

1"use strict";
2/**
3 * This is the Posix implementation of isexe, which uses the file
4 * mode and uid/gid values.
5 *
6 * @module
7 */
8Object.defineProperty(exports, "__esModule", { value: true });
9exports.sync = exports.isexe = void 0;
10const node_fs_1 = require("node:fs");
11const promises_1 = require("node:fs/promises");
12/**
13 * Determine whether a path is executable according to the mode and
14 * current (or specified) user and group IDs.
15 */
16const isexe = async (path, options = {}) => {
17    const { ignoreErrors = false } = options;
18    try {
19        return checkStat(await (0, promises_1.stat)(path), options);
20    }
21    catch (e) {
22        const er = e;
23        if (ignoreErrors || er.code === 'EACCES')
24            return false;
25        throw er;
26    }
27};
28exports.isexe = isexe;
29/**
30 * Synchronously determine whether a path is executable according to
31 * the mode and current (or specified) user and group IDs.
32 */
33const sync = (path, options = {}) => {
34    const { ignoreErrors = false } = options;
35    try {
36        return checkStat((0, node_fs_1.statSync)(path), options);
37    }
38    catch (e) {
39        const er = e;
40        if (ignoreErrors || er.code === 'EACCES')
41            return false;
42        throw er;
43    }
44};
45exports.sync = sync;
46const checkStat = (stat, options) => stat.isFile() && checkMode(stat, options);
47const checkMode = (stat, options) => {
48    const myUid = options.uid ?? process.getuid?.();
49    const myGroups = options.groups ?? process.getgroups?.() ?? [];
50    const myGid = options.gid ?? process.getgid?.() ?? myGroups[0];
51    if (myUid === undefined || myGid === undefined) {
52        throw new Error('cannot get uid or gid');
53    }
54    const groups = new Set([myGid, ...myGroups]);
55    const mod = stat.mode;
56    const uid = stat.uid;
57    const gid = stat.gid;
58    const u = parseInt('100', 8);
59    const g = parseInt('010', 8);
60    const o = parseInt('001', 8);
61    const ug = u | g;
62    return !!(mod & o ||
63        (mod & g && groups.has(gid)) ||
64        (mod & u && uid === myUid) ||
65        (mod & ug && myUid === 0));
66};
67//# sourceMappingURL=posix.js.map