1 | var os = require('os');
|
2 | var common = require('./common');
|
3 |
|
4 | common.register('cd', _cd, {});
|
5 |
|
6 |
|
7 |
|
8 |
|
9 |
|
10 | function _cd(options, dir) {
|
11 | if (!dir) dir = os.homedir();
|
12 |
|
13 | if (dir === '-') {
|
14 | if (!process.env.OLDPWD) {
|
15 | common.error('could not find previous directory');
|
16 | } else {
|
17 | dir = process.env.OLDPWD;
|
18 | }
|
19 | }
|
20 |
|
21 | try {
|
22 | var curDir = process.cwd();
|
23 | process.chdir(dir);
|
24 | process.env.OLDPWD = curDir;
|
25 | } catch (e) {
|
26 |
|
27 | var err;
|
28 | try {
|
29 | common.statFollowLinks(dir);
|
30 | err = 'not a directory: ' + dir;
|
31 | } catch (e2) {
|
32 | err = 'no such file or directory: ' + dir;
|
33 | }
|
34 | if (err) common.error(err);
|
35 | }
|
36 | return '';
|
37 | }
|
38 | module.exports = _cd;
|