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

68 lines
2.3 KiB
JavaScript
Executable file

/*
* 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 { dirname, resolve, parse } = require('path');
const { accessSync, readFileSync } = require('fs');
const { debug } = require('./debug');
function getConfig(config) {
const defaults = {
projectRoot: true,
};
if (!config || !config['@elastic/eslint-import-resolver-kibana']) return defaults;
return Object.assign(defaults, config['@elastic/eslint-import-resolver-kibana']);
}
function getRootPackageDir(dirRoot, dir, rootPackageName) {
if (dirRoot === dir) return null;
const pkgFile = resolve(dir, 'package.json');
try {
accessSync(pkgFile);
// if rootPackageName is not provided, stop when package.json is found
if (!rootPackageName) return dir;
// if rootPackageName is provided, check for match
const { name, config } = JSON.parse(readFileSync(pkgFile));
const { projectRoot } = getConfig(config);
if (projectRoot && name === rootPackageName) return dir;
// recurse until a matching package.json is found
return getRootPackageDir(dirRoot, dirname(dir), rootPackageName);
} catch (e) {
if (e.code === 'ENOENT') return getRootPackageDir(dirRoot, dirname(dir), rootPackageName);
throw e;
}
}
exports.getProjectRoot = function (file, config) {
const { root, dir } = parse(resolve(file));
const { rootPackageName } = config;
const projectRoot = getRootPackageDir(root, dir, rootPackageName);
if (projectRoot === null) throw new Error('Failed to find plugin root');
debug(`Resolved project root: ${projectRoot}`);
return projectRoot;
};