82 lines
1.8 KiB
JavaScript
82 lines
1.8 KiB
JavaScript
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'use strict';
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var fs = require('fs');
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var parse = require('parse-passwd');
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function homedir() {
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// The following logic is from looking at logic used in the different platform
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// versions of the uv_os_homedir function found in https://github.com/libuv/libuv
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// This is the function used in modern versions of node.js
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if (process.platform === 'win32') {
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// check the USERPROFILE first
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if (process.env.USERPROFILE) {
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return process.env.USERPROFILE;
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}
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// check HOMEDRIVE and HOMEPATH
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if (process.env.HOMEDRIVE && process.env.HOMEPATH) {
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return process.env.HOMEDRIVE + process.env.HOMEPATH;
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}
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// fallback to HOME
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if (process.env.HOME) {
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return process.env.HOME;
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}
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return null;
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}
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// check HOME environment variable first
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if (process.env.HOME) {
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return process.env.HOME;
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}
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// on linux platforms (including OSX) find the current user and get their homedir from the /etc/passwd file
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var passwd = tryReadFileSync('/etc/passwd');
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var home = find(parse(passwd), getuid());
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if (home) {
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return home;
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}
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// fallback to using user environment variables
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var user = process.env.LOGNAME || process.env.USER || process.env.LNAME || process.env.USERNAME;
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if (!user) {
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return null;
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}
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if (process.platform === 'darwin') {
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return '/Users/' + user;
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}
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return '/home/' + user;
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}
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function find(arr, uid) {
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var len = arr.length;
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for (var i = 0; i < len; i++) {
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if (+arr[i].uid === uid) {
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return arr[i].homedir;
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}
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}
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}
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function getuid() {
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if (typeof process.geteuid === 'function') {
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return process.geteuid();
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}
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return process.getuid();
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}
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function tryReadFileSync(fp) {
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try {
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return fs.readFileSync(fp, 'utf8');
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} catch (err) {
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return '';
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}
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}
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module.exports = homedir;
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