43 lines
1.0 KiB
JavaScript
43 lines
1.0 KiB
JavaScript
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var path = require('path')
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, fs = require('fs');
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var fnExists = fs.exists || path.exists;
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/**
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* Ensures the directory exists, creating it recursively if not.
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*
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* @param {string} dir The directory path to ensure existance.
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* @param {number=} mode See fs.mkdir
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* @param {function(?Error)} callback
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*/
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module.exports = function (dir, mode, callback) {
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if (mode && typeof(mode) === 'function') {
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callback = mode;
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mode = null;
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}
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mode = mode || 0777 & (~process.umask());
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callback = callback || function () {
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};
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_ensureDir(dir, mode, callback);
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};
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function _ensureDir(dir, mode, callback) {
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fnExists(dir, function (exists) {
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if (exists) return callback(null);
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var current = path.resolve(dir), parent = path.dirname(current);
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_ensureDir(parent, mode, function (err) {
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if (err) return callback(err);
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fs.mkdir(current, mode, function (err) {
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if (err && err.code != 'EEXIST') return callback(err); // avoid the error under concurrency
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callback(null);
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});
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});
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});
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}
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