82 lines
2.2 KiB
TypeScript
82 lines
2.2 KiB
TypeScript
import fs, {promises as afs} from "fs";
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import path from "path";
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export async function sleep(ms: number): Promise<void> {
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return await new Promise(resolve => {
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setTimeout(() => resolve(), ms);
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});
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}
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export abstract class WrappingError extends Error {
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public readonly cause?: Error;
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protected constructor(message: string, cause?: Error) {
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super(message);
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this.cause = cause;
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if (cause !== undefined) {
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this.stack = (this.stack || '') + `\n> Caused by: ${cause.stack}`;
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}
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}
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public get name(): string {
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return this.constructor.name;
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}
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}
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export type Type<T> = { new(...args: never[]): T };
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export function bufferToUuid(buffer: Buffer): string {
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const chars = buffer.toString('hex');
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let out = '';
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let i = 0;
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for (const l of [8, 4, 4, 4, 12]) {
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if (i > 0) out += '-';
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out += chars.substr(i, l);
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i += l;
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}
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return out;
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}
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export function getMethods<T extends { [p: string]: unknown }>(obj: T): string[] {
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const properties = new Set<string>();
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let currentObj: T | unknown = obj;
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do {
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Object.getOwnPropertyNames(currentObj).map(item => properties.add(item));
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currentObj = Object.getPrototypeOf(currentObj);
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} while (currentObj);
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return [...properties.keys()].filter(item => typeof obj[item] === 'function');
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}
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export async function listFilesRecursively(dir: string): Promise<string[]> {
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const localFiles = await afs.readdir(dir);
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const files: string[] = [];
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for (const file of localFiles.map(file => path.join(dir, file))) {
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const stat = await afs.stat(file);
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if (stat.isDirectory()) {
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files.push(...await listFilesRecursively(file));
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} else {
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files.push(file);
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}
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}
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return files;
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}
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export async function doesFileExist(file: string): Promise<boolean> {
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return await new Promise<boolean>((resolve, reject) => {
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fs.stat(file, err => {
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if (err) {
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if (err.code === 'ENOENT') {
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return resolve(false);
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} else {
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return reject(err);
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}
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} else {
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return resolve(true);
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}
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});
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});
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}
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