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39 lines
932 B
JavaScript
39 lines
932 B
JavaScript
/*
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MIT License http://www.opensource.org/licenses/mit-license.php
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Author Natsu @xiaoxiaojx
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*/
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"use strict";
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/** @typedef {import("../Resolver").FileSystem} FileSystem */
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/**
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* Read and parse JSON file
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* @template T
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* @param {FileSystem} fileSystem the file system
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* @param {string} jsonFilePath absolute path to JSON file
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* @returns {Promise<T>} parsed JSON content
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*/
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async function readJson(fileSystem, jsonFilePath) {
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const { readJson } = fileSystem;
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if (readJson) {
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return new Promise((resolve, reject) => {
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readJson(jsonFilePath, (err, content) => {
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if (err) return reject(err);
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resolve(/** @type {T} */ (content));
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});
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});
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}
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const buf = await new Promise((resolve, reject) => {
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fileSystem.readFile(jsonFilePath, (err, data) => {
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if (err) return reject(err);
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resolve(data);
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});
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});
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return JSON.parse(/** @type {string} */ (buf.toString()));
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}
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module.exports.readJson = readJson;
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