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feat(pack-cli): support JS config (utoopack.config.mjs/js) and defineConfig #2666

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Merged
yuzheng14 merged 3 commits into from
Mar 9, 2026
Merged

feat(pack-cli): support JS config (utoopack.config.mjs/js) and defineConfig #2666

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98a6c1b
feat(pack-cli): support JS config (utoopack.config.mjs/js) and define…
yuzheng14 Feb 25, 2026
6f33b09
Update packages/pack-cli/src/utils/common.ts
yuzheng14 Mar 6, 2026
7887d01
refactor(pack-cli): use node:fs/promises readFile for config
yuzheng14 Mar 6, 2026
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3 changes: 3 additions & 0 deletions examples/config-js/.gitignore
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@@ -0,0 +1,3 @@
node_modules/
dist/
.turbopack/
12 changes: 12 additions & 0 deletions examples/config-js/index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>JS Config Example</title>
</head>
<body>
<div id="root"></div>
<script src="./src/index.ts"></script>
</body>
</html>
14 changes: 14 additions & 0 deletions examples/config-js/package.json
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{
"name": "example-config-js",
"version": "1.0.0",
"description": "Example: utoopack with JS config (utoopack.config.mjs)",
"private": true,
"scripts": {
"build": "up build",
"dev": "up dev"
},
"devDependencies": {
"@utoo/pack": "*",
"@utoo/pack-cli": "*"
}
}
6 changes: 6 additions & 0 deletions examples/config-js/src/index.ts
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declare const GREETING: string;
declare const APP_VERSION: number;

// These are injected at build time via utoopack.config.mjs define
console.log("GREETING:", GREETING);
console.log("APP_VERSION:", APP_VERSION);
18 changes: 18 additions & 0 deletions examples/config-js/tsconfig.json
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{
"compilerOptions": {
"target": "ES2020",
"lib": [
"dom",
"ES2020"
],
"allowJs": true,
"skipLibCheck": true,
"strict": true,
"module": "esnext",
"moduleResolution": "node",
"noEmit": true
},
"include": [
"src"
]
}
24 changes: 24 additions & 0 deletions examples/config-js/utoopack.config.mjs
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// @ts-check
import { defineConfig } from "@utoo/pack";

/** Example JS config: same shape as utoopack.json, can use dynamic values. */
export default defineConfig({
define: {
GREETING: '"Hello from JS config"',
APP_VERSION: "1",
},
entry: [
{
import: "./src/index.ts",
html: { template: "./index.html" },
},
],
output: {
path: "./dist",
filename: "[name].[contenthash:6].js",
chunkFilename: "[name].[contenthash:8].js",
clean: true,
},
sourceMaps: false,
optimization: { minify: false },
});
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