101 lines
2.2 KiB
JavaScript
101 lines
2.2 KiB
JavaScript
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const
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path = require('path'),
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fs = require('fs');
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class Utils {
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static async tryParseJson(jsonString) {
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try {
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return JSON.parse(jsonString);
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}catch(err) {
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throw ({
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'message': 'Failed to parse json',
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err
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});
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}
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}
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static get timestamp() {
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return 'Timestamp';
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}
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}
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class FileUtils {
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static async fileExists(path) {
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return new Promise((resolve, reject) => {
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fs.stat(path, (err, stats) => {
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if(err) return reject({
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'message': `No such file or directory: ${err.path}`,
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err
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});
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if(!stats.isFile()) return reject({
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'message': `Not a file: ${path}`,
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stats
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});
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resolve();
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});
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});
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}
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static async directoryExists(path) {
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return new Promise(resolve => {
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fs.stat(path, (err, stats) => {
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if(err) return reject({
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'message': `Directory does not exist: ${path}`,
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err
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});
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if(!stats.isDirectory()) return reject({
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'message': `Not a directory: ${path}`,
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stats
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});
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resolve();
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});
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});
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}
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static async readFile(path) {
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try {
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await this.fileExists(path);
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} catch(err) {
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throw(err);
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}
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return new Promise(resolve => {
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fs.readFile(path, 'utf-8', (err, data) => {
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if(err) reject({
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'message': `Could not read file: ${path}`,
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err
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});
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resolve(data);
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});
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});
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}
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static async readJsonFromFile(path) {
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let readFile;
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try {
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readFile = await this.readFile(path);
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} catch(err) {
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throw(err);
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}
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try {
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const parsed = await Utils.tryParseJson(readFile);
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return parsed;
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} catch(err) {
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throw(Object.assign(err, { path }));
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}
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}
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}
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module.exports = {
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Utils,
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FileUtils
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}
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