core: add daily task: check update (#293)

packages/hydrooj/src/script/checkUpdate.ts

@@ -0,0 +1,42 @@
+/* eslint-disable no-await-in-loop */
+import * as semver from 'semver';
+import superagent from 'superagent';
+import MessageModel from '../model/message';
+import * as system from '../model/system';
+
+export const description = 'Daily update check';
+
+async function getRemoteVersion(id: string) {
+    try {
+        const res = await superagent.get(`https://registry.yarnpkg.com/${id}`);
+        return res.body['dist-tags'].latest;
+    } catch (e) {
+        return null;
+    }
+}
+
+export async function run() {
+    const current = global.Hydro.version;
+    const message = [''];
+    for (const name in current) {
+        if (name === 'node') continue;
+        const id = name === 'hydrooj' ? name : `@hydrooj/${name}`;
+        const remote = await getRemoteVersion(id);
+        if (!remote) continue;
+        const stored = system.get(`checkVersion.${id}`);
+        if (semver.lt(stored, remote)) {
+            system.set(`checkVersion.${id}`, remote);
+            if (semver.lt(current[name], remote)) {
+                message.push(`${id}\t${current[name]} -> ${remote}`);
+            }
+        }
+    }
+    if (message.length > 1) {
+        MessageModel.sendNotification('Packages have new version: {0}', message.join('\n'));
+    }
+    return true;
+}
+
+export const validate = {};
+
+global.Hydro.script.checkUpdate = { run, description, validate };