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---
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title: 从编译内核开始的内核更新之旅
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date: 2021-07-03 23:34:27
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tags:
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- Ubuntu
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- Linux
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- Debootstrap
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thumbnail: /assets/Tux.png
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---
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正如你所见的那样, 这是一篇有关于内核 更新/编译 的文章.
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<!--more-->
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> 头图来自 [github:garrett/Tux](https://github.com/garrett/Tux), 使用 CC0 授权.
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{% note info %}
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### 0.0 提示
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该文章还未写完, 写完再说 (
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{% endnote %}
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{% note warning %}
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### 0.1 警告
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本文仅为一篇 ***教程性*** 文章, 将不会讨论有关更深层次的技术问题.
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若有错误, 欢迎在评论区进行指正或发送邮件至 `i@186526.xyz`.
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{% endnote %}
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## 1.0 获取所需材料
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你可能会需要以下物品来完成你的内核编译.
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1. 一台可用的且运行 GNU/Linux 并有 Root 权限 的设备
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2. 正常且快速的 Internet 链接
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3. ~~空调~~ ~~快乐水~~ 正常且可用并且出问题会自己 Google 的大脑
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## 1.1 启动设备
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我们这里使用运行在 FireCracker / KVM 上的 Debian Buster 作为编译设备.
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为了安全, 我们建议创建
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```bash
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# 使用 ignite 快速的创建使用 Debian Buster 的 FireCracker 系统容器.
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$ sudo ignite run registry.186526.xyz/186526/ignite-debian \
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--cpus 12 \
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--memory 8GB \
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--size 30g \
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--ssh --name kernel-builder \
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-k registry.186526.xyz/186526/ignite-kernel:5.10.39-amd64
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INFO[0001] Created VM with ID "95b84f2c9e92ffa7" and name "kernel-builder"
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INFO[0002] Networking is handled by "cni"
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INFO[0002] Started Firecracker VM "95b84f2c9e92ffa7" in a container with ID "ignite-95b84f2c9e92ffa7"
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INFO[0002] Waiting for the ssh daemon within the VM to start...
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# 连接至该容器
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$ sudo ignite ssh kernel-builder
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# 创建用于内核编译的用户, 名为 builder
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(inFireCrackerContainer) # adduser builder
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Adding user `builder' ...
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Adding new group `builder' (1000) ...
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Adding new user `builder' (1000) with group `builder' ...
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Creating home directory `/home/builder' ...
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Copying files from `/etc/skel' ...
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New password:
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Retype new password:
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passwd: password updated successfully
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Changing the user information for builder
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Enter the new value, or press ENTER for the default
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Full Name []:
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Room Number []:
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Work Phone []:
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Home Phone []:
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Other []:
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Is the information correct? [Y/n] Y
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```
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## 1.2 安装所需编译依赖
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我们这里使用的是 Debian, 使用的是 DPKG/APT 包管理.
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其他发行版请参考对应文章进行编译依赖的安装.
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若使用APT, 你需要加入 Source 源来完成依赖的安装.
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``` bash
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# 更新 APT 的缓存信息
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apt update -y
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# 安装 编译依赖
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apt install build-essential libncurses5-dev xz-utils wget -y
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apt-get build-dep linux -y
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```
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## 1.3 准备源代码
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我们这里将会选择截止本文章编写时最新 (2021.07.03) 的 [Stable Kernel](https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.12.14.tar.xz) (即 5.12.14)
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你可以在 [kernel.org](https://kernel.org) 选择所需 Kernel 来编译.
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``` Bash
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# 进入 builder 账户
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su - builder
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# 下载 linux-5.12.14.tar.xz 源码文件
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mkdir -p build && cd build && wget https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.12.14.tar.xz
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# 解压内核源码
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tar xvf linux-5.12.14.tar.xz && cd linux-5.12.14
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```
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## 2.1 配置内核
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配置内核是个细心活, 你可能能需要大量的时间和精力来配置一个针对你设备最好的内核.
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如果你觉得你很懒, 你可以选择我在这里配置好的针对 KVM/QEMU 环境的内核配置.
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你也可以在 `/boot/config-$(uname -r)` 中找到你当前内核的配置.
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```bash
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# 我们这里选择下载
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```
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@ -50,10 +50,8 @@
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valinenow();
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}
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}
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document.dispatchEvent(new window.Event("LoadValine"));
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valinedo();
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if(!window.whenAvailable){
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let whenAvailable = function(name, callback){
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window.whenAvailable = function(name, callback){
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var interval = 100;
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window.setTimeout(function () {
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if (window[name]) {
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@ -64,4 +62,6 @@
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}, interval);
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}
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}
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document.dispatchEvent(new window.Event("LoadValine"));
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valinedo();
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</script>
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@ -0,0 +1 @@
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../../../assets
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@ -35,13 +35,13 @@
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return;
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}
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if (!window.dataLayer) {
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var d = document,
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a = d.createElement("script");
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a.async = true;
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a.src = "https://www.googletagmanager.com/gtag/js?id=G-ENYRL7T64N";
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d.head.appendChild(a);
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}
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(function(e,t,n,i,s,a,c){e[n]=e[n]||function(){(e[n].q=e[n].q||[]).push(arguments)}
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;a=t.createElement(i);c=t.getElementsByTagName(i)[0];a.async=true;a.src=s
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;c.parentNode.insertBefore(a,c)
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})(window,document,"galite","script","https://cdn.jsdelivr.net/npm/ga-lite@2/dist/ga-lite.min.js");
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galite('create', 'UA-174554903-1', 'auto');
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galite('send', 'pageview');
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if (typeof navigator.connection !== "undefined") {
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if (navigator.connection.rtt <= 600 & navigator.connection.downlink >= 0.5) {
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@ -53,14 +53,6 @@
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setTimeout(fontsInit, 1000);
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}
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window.dataLayer = window.dataLayer || [];
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function gtag() {
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dataLayer.push(arguments);
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}
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gtag('js', new Date());
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gtag('config', 'G-ENYRL7T64N');
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});
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var fontsInit = function fontsInit() {
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@ -82,14 +74,6 @@
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whenAvailable("LazyLoad", function () {
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new LazyLoad(globalThis.lazyLoadOptions);
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});
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window.dataLayer = window.dataLayer || [];
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function gtag() {
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dataLayer.push(arguments);
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}
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gtag('js', new Date());
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gtag('config', 'G-ENYRL7T64N');
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};
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document.addEventListener('LoadValine', function () {
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@ -5,11 +5,11 @@ workbox.setConfig({
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});
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const { core, precaching, routing, strategies, expiration, cacheableResponse, backgroundSync } = workbox;
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const { CacheFirst, NetworkFirst, NetworkOnly } = strategies;
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const { CacheFirst, NetworkFirst, NetworkOnly,StaleWhileRevalidate } = strategies;
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const { ExpirationPlugin } = expiration;
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const { CacheableResponsePlugin } = cacheableResponse;
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const cacheSuffixVersion = '-210703a',
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const cacheSuffixVersion = '-210703b',
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// precacheCacheName = core.cacheNames.precache,
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// runtimeCacheName = core.cacheNames.runtime,
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maxEntries = 100;
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@ -196,194 +196,6 @@ routing.registerRoute(
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"POST"
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)
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const assert_js = core._private, cacheNames_js = core._private, cacheWrapper_js = core._private, fetchWrapper_js = core._private, getFriendlyURL_js = core._private, logger_js = core._private, WorkboxError_js = core._private;
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const cacheOkAndOpaquePlugin = {
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/**
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* Returns a valid response (to allow caching) if the status is 200 (OK) or
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* 0 (opaque).
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*
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* @param {Object} options
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* @param {Response} options.response
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* @return {Response|null}
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*
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* @private
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*/
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cacheWillUpdate: async ({
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response
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}) => {
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if (response.status === 200 || response.status === 0) {
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return response;
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}
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return null;
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}
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};
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const messages = {
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strategyStart: (strategyName, request) => `Using ${strategyName} to respond to '${getFriendlyURL_js.getFriendlyURL(request.url)}'`,
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printFinalResponse: response => {
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if (response) {
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}
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}
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};
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class StaleWhileRevalidate {
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/**
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* @param {Object} options
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* @param {string} options.cacheName Cache name to store and retrieve
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* requests. Defaults to cache names provided by
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* [workbox-core]{@link module:workbox-core.cacheNames}.
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* @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
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* to use in conjunction with this caching strategy.
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* @param {Object} options.fetchOptions Values passed along to the
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* [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
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* of all fetch() requests made by this strategy.
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* @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
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*/
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constructor(options = {}) {
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this._cacheName = cacheNames_js.cacheNames.getRuntimeName(options.cacheName);
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this._plugins = options.plugins || [];
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if (options.plugins) {
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const isUsingCacheWillUpdate = options.plugins.some(plugin => !!plugin.cacheWillUpdate);
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this._plugins = isUsingCacheWillUpdate ? options.plugins : [cacheOkAndOpaquePlugin, ...options.plugins];
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} else {
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// No plugins passed in, use the default plugin.
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this._plugins = [cacheOkAndOpaquePlugin];
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}
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this._fetchOptions = options.fetchOptions;
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this._matchOptions = options.matchOptions;
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}
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/**
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* This method will perform a request strategy and follows an API that
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* will work with the
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* [Workbox Router]{@link module:workbox-routing.Router}.
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*
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* @param {Object} options
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* @param {Request|string} options.request A request to run this strategy for.
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* @param {Event} [options.event] The event that triggered the request.
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* @return {Promise<Response>}
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*/
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async handle({
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event,
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request
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}) {
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const logs = [];
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if (typeof request === 'string') {
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request = new Request(request);
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}
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const fetchAndCachePromise = this._getFromNetwork({
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request,
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event
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});
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let response = await cacheWrapper_js.cacheWrapper.match({
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cacheName: this._cacheName,
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request,
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event,
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matchOptions: this._matchOptions,
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plugins: this._plugins
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});
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let error;
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if (response) {
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{
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logs.push(`Found a cached response in the '${this._cacheName}'` + ` cache. Will update with the network response in the background.`);
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}
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if (event) {
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try {
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event.waitUntil(fetchAndCachePromise);
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} catch (error) {
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{
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}
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}
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}
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} else {
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{
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logs.push(`No response found in the '${this._cacheName}' cache. ` + `Will wait for the network response.`);
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}
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try {
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response = await fetchAndCachePromise;
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} catch (err) {
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error = err;
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}
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}
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{
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for (const log of logs) {
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}
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messages.printFinalResponse(response);
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}
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if (!response) {
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throw new WorkboxError_js.WorkboxError('no-response', {
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url: request.url,
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error
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});
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}
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return response;
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}
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/**
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* @param {Object} options
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* @param {Request} options.request
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* @param {Event} [options.event]
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* @return {Promise<Response>}
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*
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* @private
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*/
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async _getFromNetwork({
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request,
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event
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}) {
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const response = await fetchWrapper_js.fetchWrapper.fetch({
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request,
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event,
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fetchOptions: this._fetchOptions,
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plugins: this._plugins
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});
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const responseRealClone = response.clone();
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const responseClone = new Response(await responseRealClone.blob(), {
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status: responseRealClone.status,
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statusText: responseRealClone.statusText,
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headers: {
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...Object.fromEntries(responseRealClone.headers.entries()),
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"server": '186526 Edge',
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}
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});
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const cachePutPromise = cacheWrapper_js.cacheWrapper.put({
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cacheName: this._cacheName,
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request,
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response: responseClone,
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event,
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plugins: this._plugins
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});
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if (event) {
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try {
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event.waitUntil(cachePutPromise);
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} catch (error) {
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{
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}
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}
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}
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return response;
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}
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}
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const StaleWhileRevalidateInstance = new StaleWhileRevalidate();
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/*
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* Others img
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|
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@ -92,7 +92,7 @@
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background-color: #252d38 !important;
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}
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.v[data-class="v"] .vsys,
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.v[data-class="v"] .vtime {
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.v[data-class="v"] .vtime ,.v[data-class=v] .status-bar, .v[data-class=v] .veditor, .v[data-class=v] .vinput, .v[data-class=v] p, .v[data-class=v] pre code{
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color: hsla(0, 0%, 100%, 0.86) !important;
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}
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.bg-gray {
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|
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