-
Notifications
You must be signed in to change notification settings - Fork 0
/
index.js
122 lines (103 loc) · 2.91 KB
/
index.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
'use strict';
var fs = require('fs');
var settings = (function () {
var data = {
relative: true
};
return {
get: function (x) {
return data[x];
},
set: function (x, y) {
data[x] = y;
}
};
}());
/**
* @param {String} file
* @return {String}
*/
var getExtension = function (file) {
var ext = '';
if (file && typeof file === 'string' && file.indexOf('.') !== -1) {
ext = file.split('.').pop().toLowerCase();
}
return ext;
};
/**
* @param {String} file
* @param {String} ext
* @return {Boolean}
*/
var isExtension = function (file, ext) {
var fileExt = file && getExtension(file);
return !!(fileExt && (new RegExp(ext, 'i')).test(fileExt));
};
/**
* @param {String} dir
* @param {String} ext
* @param {Boolean} recursive
* @param {Function} done - err, {String[]} files
*/
var findByExtension = function (dir, ext, recursive, done) {
var foundFiles = [],
pending,
dirRegExp = settings.get('relative') &&
new RegExp('^' + dir + '\/');
var finish = function () {
var i;
if (!pending) {
for (i = 0; i < foundFiles.length && dirRegExp; i++) {
foundFiles[i] = foundFiles[i].replace(dirRegExp, '');
}
done(null, foundFiles.length ? foundFiles : null);
}
};
// Used to keep proper reference to file
var helper = function (file) {
return function (err, stats) {
if (!err) {
// handle files
if (stats.isFile()) {
pending--;
if (isExtension(file, ext)) {
foundFiles.push(file);
}
finish();
} else if (stats.isDirectory()) {
// handle dirs
if (recursive) {
findByExtension(file, ext, recursive, function (err, files) {
pending--;
foundFiles = foundFiles.concat(files);
finish();
});
} else {
pending--;
}
}
}
};
};
if (dir && ext) {
fs.readdir(dir, function (err, files) {
var file, i;
if (err) {
done(err);
} else {
pending = files.length;
for (i = 0; i < files.length; i++) {
file = dir + '/' + files[i];
fs.stat(file, helper(file));
}
}
});
} else {
done(new Error(!dir ? 'What directory, dude?' :
'What extension are you looking for?'));
}
};
exports.find = findByExtension;
exports.getExtension = getExtension;
exports.isExtension = isExtension;
exports.settings = settings;