kibana/packages/kbn-eslint-import-resolver-kibana/lib/get_path_type.js
2020-05-22 09:08:58 +02:00

59 lines
1.6 KiB
JavaScript

/*
* Licensed to Elasticsearch B.V. under one or more contributor
* license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright
* ownership. Elasticsearch B.V. licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
const { statSync } = require('fs');
const LRU = require('lru-cache');
const DIR = Symbol('dir');
const FILE = Symbol('file');
const cache = process.env.KIBANA_RESOLVER_HARD_CACHE ? new Map() : new LRU({ maxAge: 1000 });
function getPathType(path) {
const cached = cache.get(path);
if (cached !== undefined) {
return cached;
}
let type = null;
try {
const stats = statSync(path);
if (stats.isDirectory()) {
type = DIR;
} else if (stats.isFile() || stats.isFIFO()) {
type = FILE;
}
} catch (error) {
if (!error || (error.code !== 'ENOENT' && error.code !== 'ENOTDIR')) {
throw error;
}
}
cache.set(path, type);
return type;
}
exports.isDirectory = function (path) {
return getPathType(path) === DIR;
};
exports.isFile = function (path) {
return getPathType(path) === FILE;
};