/
index.js
46 lines (37 loc) · 1.04 KB
/
index.js
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'use strict';
const path = require('path');
const locatePath = require('locate-path');
module.exports = (filename, options = {}) => {
const startDirectory = path.resolve(options.cwd || '');
const {root} = path.parse(startDirectory);
const filenames = [].concat(filename);
return new Promise(resolve => {
(function find(directory) {
locatePath(filenames, {cwd: directory}).then(file => {
if (file) {
resolve(path.join(directory, file));
} else if (directory === root) {
resolve(null);
} else {
find(path.dirname(directory));
}
});
})(startDirectory);
});
};
module.exports.sync = (filename, options = {}) => {
let directory = path.resolve(options.cwd || '');
const {root} = path.parse(directory);
const filenames = [].concat(filename);
// eslint-disable-next-line no-constant-condition
while (true) {
const file = locatePath.sync(filenames, {cwd: directory});
if (file) {
return path.join(directory, file);
}
if (directory === root) {
return null;
}
directory = path.dirname(directory);
}
};