1/* 2 * Copyright (c) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16const JSON5 = require("json5"); 17 18module.exports = class ReadJsonPlugin { 19 apply(resolver) { 20 if (resolver && resolver.fileSystem && resolver.fileSystem.readFile) { 21 resolver.fileSystem.readJson = (filepath, callback) => { 22 resolver.fileSystem.readFile(filepath, (error, content) => { 23 if (error) { 24 return callback(error); 25 } 26 if (!content || content.length === 0) { 27 return callback(new Error("No file content")); 28 } 29 let data; 30 try { 31 if (/\.json5$/.test(filepath)) { 32 data = JSON5.parse(content.toString("utf-8")); 33 } else { 34 data = JSON.parse(content.toString("utf-8")); 35 } 36 } catch (e) { 37 return callback(e); 38 } 39 callback(null, data); 40 }); 41 }; 42 } 43 } 44}; 45