前端检测更新

Signed-off-by: skywolf627 <skywolf627@qq.com>

Web/src/utils/auto-update.ts

@@ -0,0 +1,59 @@
+/**
+ *通过监听当前页面的JS的SRC来判断当前网页是否有更新
+ *使用方法   main.js   import checkUpdate from "/@/utils/auto-update";
+ */
+
+let lastSrcs: any[] | null; //上次js地址集合
+const scriptReg = /(?<=<script.*src=["']).*?(?=["'])/gm;
+
+/**
+ * 获取最新的js集合
+ * @returns
+ */
+async function extractNewScripts() {
+	const html = await fetch('/?_t=' + Date.now()).then((res) => res.text());
+	scriptReg.lastIndex = 0;
+	const result = html.match(scriptReg);
+	return result;
+}
+/**
+ * 判断是否有更新
+ * @returns
+ */
+async function checkUpdate() {
+	const newScripts = await extractNewScripts();
+	if (!lastSrcs) {
+		lastSrcs = newScripts;
+		return false;
+	}
+	if (newScripts == null) return false;
+	let result = false;
+	if (lastSrcs.length !== newScripts.length) {
+		result = true;
+	}
+	for (let i = 0; i < lastSrcs.length; i++) {
+		if (lastSrcs[i] !== newScripts[i]) {
+			result = true;
+			break;
+		}
+	}
+	lastSrcs = newScripts;
+	return result;
+}
+
+/**
+ * 定时器定时检测是否更新，有更新则执行回调函数
+ * @param callbackFn
+ * @param interval
+ */
+function checkUpdateInterval(callbackFn: any, interval: number = 60000) {
+	setTimeout(async () => {
+		const willUpdate = await checkUpdate();
+		if (willUpdate) {
+			callbackFn();
+		}
+		checkUpdateInterval(callbackFn, interval);
+	}, interval);
+}
+
+export default checkUpdateInterval;