documentit/node_modules/find-up/index.js
2018-01-05 10:48:13 -08:00

54 lines
951 B
JavaScript

'use strict';
var path = require('path');
var pathExists = require('path-exists');
var Promise = require('pinkie-promise');
function splitPath(x) {
return path.resolve(x || '').split(path.sep);
}
function join(parts, filename) {
return path.resolve(parts.join(path.sep) + path.sep, filename);
}
module.exports = function (filename, opts) {
opts = opts || {};
var parts = splitPath(opts.cwd);
return new Promise(function (resolve) {
(function find() {
var fp = join(parts, filename);
pathExists(fp).then(function (exists) {
if (exists) {
resolve(fp);
} else if (parts.pop()) {
find();
} else {
resolve(null);
}
});
})();
});
};
module.exports.sync = function (filename, opts) {
opts = opts || {};
var parts = splitPath(opts.cwd);
var len = parts.length;
while (len--) {
var fp = join(parts, filename);
if (pathExists.sync(fp)) {
return fp;
}
parts.pop();
}
return null;
};