feat(scripts): dev:mock 一键离线演示(本地主题通道 9527 + vite mock 8131)

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chenxing
2026-10-01 23:10:36 +08:00
parent 7d6560703d
commit 1db85be875
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#!/usr/bin/env node
/**
* start-mock.mjs —— 无 VPN 一键离线演示(npm run dev:mock)。
*
* 做三件事(零第三方依赖,Node 20 自带 fetch):
* 1. 拉起 YschTheme 的本地静态通道 scripts/dev-serve.mjs(9527,/dist/pc 挂 /static/);
* 2. 探活 9527/static/manifest.json(若端口已被上次残留进程占用且可服务,同样放行);
* 3. 以 YH_THEME_PROXY_TARGET=http://localhost:9527 spawn vite --mode mock(8131)。
*
* 效果:浏览器访问 http://localhost:8131 —— 三页治理台账全量可演示(mock 数据),
* 主题 CSS/切换器经本地 9527 供给,全程不触网、不需要 VPN。
* 主题静态资源不拷进 front/public(应用侧不持主题副本是主题仓硬原则)。
* VPN 恢复后照旧 npm run dev 走真后端,两者互不影响。Ctrl+C 退出会一并收掉两个子进程。
*/
import { spawn } from "node:child_process";
import { existsSync } from "node:fs";
import path from "node:path";
import { fileURLToPath } from "node:url";
const frontDir = path.resolve(path.dirname(fileURLToPath(import.meta.url)), "..");
const themeDir = path.resolve(frontDir, "..", "..", "YschTheme");
const themeServeScript = path.join(themeDir, "scripts", "dev-serve.mjs");
const viteBin = path.join(frontDir, "node_modules", "vite", "bin", "vite.js");
const THEME_PORT = 9527;
const fail = (msg) => {
console.error(`[start-mock] ${msg}`);
process.exit(1);
};
if (!existsSync(themeServeScript)) {
fail(`找不到主题静态服务脚本 ${themeServeScript}(YschTheme 仓位置异常?)`);
}
if (!existsSync(viteBin)) {
fail(`找不到 ${viteBin}(先在 front 目录 npm install)`);
}
/* 1. 本地静态通道(YschTheme 零依赖实现,serve dist/pc 于 /static/) */
const themeServer = spawn(process.execPath, [themeServeScript], {
cwd: themeDir,
stdio: ["ignore", "pipe", "pipe"],
});
themeServer.stdout.on("data", (d) => process.stdout.write(`[theme] ${d}`));
themeServer.stderr.on("data", (d) => process.stderr.write(`[theme] ${d}`));
const sleep = (ms) => new Promise((r) => setTimeout(r, ms));
async function waitThemeReady(tries = 24) {
for (let i = 0; i < tries; i++) {
try {
const res = await fetch(`http://localhost:${THEME_PORT}/static/manifest.json`);
if (res.ok) return true;
} catch {
/* 尚未就绪/端口被占(占位进程若可服务也会在上面返回 ok) */
}
await sleep(250);
}
return false;
}
/* 2. 探活:主题通道就绪才起前端(演示强依赖主题 CSS) */
if (!(await waitThemeReady())) {
themeServer.kill();
fail(`9527 主题静态通道未就绪 —— 检查 ${themeServeScript} 与 YschTheme/dist/pc 是否存在(必要时先在 YschTheme 跑 npm run gen)`);
}
console.log(`[start-mock] 主题静态通道就绪 → http://localhost:${THEME_PORT}/static/`);
/* 3. vite --mode mock(dev server 8131;/static 代理由 YH_THEME_PROXY_TARGET 指向 9527) */
const vite = spawn(process.execPath, [viteBin, "--mode", "mock"], {
cwd: frontDir,
stdio: "inherit",
env: { ...process.env, YH_THEME_PROXY_TARGET: `http://localhost:${THEME_PORT}` },
});
const shutdown = () => {
vite.kill();
themeServer.kill();
};
vite.on("exit", (code) => {
themeServer.kill();
process.exit(code ?? 0);
});
themeServer.on("exit", () => {
/* 9527 若由残留进程提供则本子进程会因端口占用退出,探活已放行,不必终止演示 */
});
for (const sig of ["SIGINT", "SIGTERM"]) process.on(sig, () => {
shutdown();
process.exit(0);
});