SSR manifest: `vite build --app --watch` embeds the previous round's client index.html

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难度
4/5
预计耗时
3-5 天
新手友好度
46/100
Issue 类型
缺陷
描述清晰度
基本清楚
活跃度
活跃
技术栈
javascript, rust

调研方向

Read the watch-mode build flow around buildStart, generateBundle, transform, and renderChunk, then trace how the server environment reads the client index.html. Reproduce with vite build --app --watch and inspect the SSR output across consecutive rounds. Done means each round embeds the matching client page and a client-only change also updates the server output.

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描述

Follow-up to #696 (fixed in #697 for normal builds). Found while reviewing #697.

In vite build --app --watch the server environment reads the client index.html in its own buildStart. The client of the same round only writes the new page later, in generateBundle. So every round embeds the page from the round before:

round 1   embeds /src/main.ts (source page)   disk: index-CDAm_wYV.js
round 2   embeds index-CDAm_wYV.js            disk: index-DK41E1g1.js
round 3   embeds index-DK41E1g1.js            disk: index-CheYs2QK.js
→ the SSR page loads a script that is 404 and never hydrates

#697 prints a warning each round, so this is not silent, but the output is still wrong. In watch mode the two environments run at the same time, so listing client first doesn't help.

Possible fix: each client round resolves a promise in its generateBundle. The server embeds a placeholder at transform time and fills it in renderChunk / generateBundle after awaiting that promise. A client-only change also needs to rebuild (or patch) the server output.

主要语言
Rust
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