Current File : /lib/node_modules/npm/node_modules/libnpmconfig/node_modules/find-up//index.js
'use strict';
const path = require('path');
const locatePath = require('locate-path');
module.exports = (filename, opts = {}) => {
const startDir = path.resolve(opts.cwd || '');
const {root} = path.parse(startDir);
const filenames = [].concat(filename);
return new Promise(resolve => {
(function find(dir) {
locatePath(filenames, {cwd: dir}).then(file => {
if (file) {
resolve(path.join(dir, file));
} else if (dir === root) {
resolve(null);
} else {
find(path.dirname(dir));
}
});
})(startDir);
});
};
module.exports.sync = (filename, opts = {}) => {
let dir = path.resolve(opts.cwd || '');
const {root} = path.parse(dir);
const filenames = [].concat(filename);
// eslint-disable-next-line no-constant-condition
while (true) {
const file = locatePath.sync(filenames, {cwd: dir});
if (file) {
return path.join(dir, file);
}
if (dir === root) {
return null;
}
dir = path.dirname(dir);
}
};
