1var path = require('path');
 2var fs = require('fs');
 3
 4module.exports = mkdirP.mkdirp = mkdirP.mkdirP = mkdirP;
 5
 6function mkdirP (p, mode, f, made) {
 7    if (typeof mode === 'function' || mode === undefined) {
 8        f = mode;
 9        mode = 0777 & (~process.umask());
10    }
11    if (!made) made = null;
12
13    var cb = f || function () {};
14    if (typeof mode === 'string') mode = parseInt(mode, 8);
15    p = path.resolve(p);
16
17    fs.mkdir(p, mode, function (er) {
18        if (!er) {
19            made = made || p;
20            return cb(null, made);
21        }
22        switch (er.code) {
23            case 'ENOENT':
24                mkdirP(path.dirname(p), mode, function (er, made) {
25                    if (er) cb(er, made);
26                    else mkdirP(p, mode, cb, made);
27                });
28                break;
29
30            // In the case of any other error, just see if there's a dir
31            // there already.  If so, then hooray!  If not, then something
32            // is borked.
33            default:
34                fs.stat(p, function (er2, stat) {
35                    // if the stat fails, then that's super weird.
36                    // let the original error be the failure reason.
37                    if (er2 || !stat.isDirectory()) cb(er, made)
38                    else cb(null, made);
39                });
40                break;
41        }
42    });
43}
44
45mkdirP.sync = function sync (p, mode, made) {
46    if (mode === undefined) {
47        mode = 0777 & (~process.umask());
48    }
49    if (!made) made = null;
50
51    if (typeof mode === 'string') mode = parseInt(mode, 8);
52    p = path.resolve(p);
53
54    try {
55        fs.mkdirSync(p, mode);
56        made = made || p;
57    }
58    catch (err0) {
59        switch (err0.code) {
60            case 'ENOENT' :
61                made = sync(path.dirname(p), mode, made);
62                sync(p, mode, made);
63                break;
64
65            // In the case of any other error, just see if there's a dir
66            // there already.  If so, then hooray!  If not, then something
67            // is borked.
68            default:
69                var stat;
70                try {
71                    stat = fs.statSync(p);
72                }
73                catch (err1) {
74                    throw err0;
75                }
76                if (!stat.isDirectory()) throw err0;
77                break;
78        }
79    }
80
81    return made;
82};