core: load commands from external plugins

packages/hydrooj/src/libs.ts

@@ -0,0 +1,22 @@
+import AdmZip from 'adm-zip';
+import fs from 'fs-extra';
+import yaml from 'js-yaml';
+import _ from 'lodash';
+import moment from 'moment-timezone';
+import Schema from 'schemastery';
+import superagent from 'superagent';
+import { Context } from './context';
+export { ObjectID, ObjectId, FilterQuery } from 'mongodb';
+export { WebSocket, WebSocketServer } from 'ws';
+export * from './utils';
+export * from './interface';
+export * from './typeutils';
+export {
+    Schema, yaml, fs, AdmZip, superagent, _, moment,
+};
+export const definePlugin = <T = never>(args: {
+    using?: keyof Context[];
+    apply: (ctx: Context, config: T) => Promise<void> | void;
+    schema?: Schema<T>;
+    name?: string;
+}) => args;