vite 打包后所有 js 文件(无论是否修改) hash 都改变了，怎么实现只有改动文件的 hash 值变化。其他文件才能缓存

[Krryxa]

Describe the bug

vite 打包后所有 js 文件(无论是否修改) hash 都改变了，怎么实现只有改动文件的 hash 值变化。其他文件才能缓存

Reproduction

https://github.com/Krryxa/krry-vue-vite

System Info

"vite": "^2.7.1"

Used Package Manager

yarn

Logs

No response

Validations

• Follow our Code of Conduct
• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to https://github.com/vuejs/core instead.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.

[chenyurou]

遇到了同样问题，导致文件缓存也失效，请问应该怎么解决

[Krryxa]

是这个依赖全部内容的问题吗

[chenyurou]

是的，像我只改了403文件，预期是只想要403.1891d439.js的hash发生变化，但是现在却是全部js文件的hash发生了改变。查看打包出来的文件内容，发现 引用了403文件的index.056b260d.js内容也发生变化，然后其他文件又引用了这个index.056b260d.js，然后就这样引起了一连串变化

[poyoho]

🤔 but I had same hash.

[Krryxa]

@poyoho Did you modify the files in the second build

[poyoho]

是的，像我只改了403文件，预期是只想要403.1891d439.js的hash发生变化，但是现在却是全部js文件的hash发生了改变。查看打包出来的文件内容，发现 引用了403文件的index.056b260d.js内容也发生变化，然后其他文件又引用了这个index.056b260d.js，然后就这样引起了一连串变化

maybe this is right? @Krryxa

[Krryxa]

是的，像我只改了403文件，预期是只想要403.1891d439.js的hash发生变化，但是现在却是全部js文件的hash发生了改变。查看打包出来的文件内容，发现 引用了403文件的index.056b260d.js内容也发生变化，然后其他文件又引用了这个index.056b260d.js，然后就这样引起了一连串变化

maybe this is right? @Krryxa

@poyoho She's my colleague, and we're discussing this issue, looking for ways to solve it

[poyoho]

@Krryxa I mean the reason for answering this issue 😂

I tested and modified the file to meet expectations

[chenyurou]

@Krryxa I mean the reason for answering this issue 😂

I tested and modified the file to meet expectations

@poyoho 请问有办法实现类似于webpack contenthash 这样的效果吗，避免出现其他不相关的文件缓存失效

[poyoho]

now had two file index.789123.js and a.123456.js

index.789123.js

import { a } from "./a.123456.js";
console.log("baz" + a);

a.123456.js

const a=1;
export{a};

If I change a.123456.js calc the hash. The a.123456.js will be a.abcdef.js.
And index.789123.js had the a.123456.js dep, so index.789123.js content will be change(a.123456.js -> a.abcdef.js.). index.789123.js will be change.

I can't reproduce the problem from your repo. Can you provide a more detailed reproduction path?

[Krryxa]

now had two file index.789123.js and a.123456.js

index.789123.js

import { a } from "./a.123456.js";
console.log("baz" + a);

a.123456.js

const a=1;
export{a};

If I change a.123456.js calc the hash. The a.123456.js will be a.abcdef.js. And index.789123.js had the a.123456.js dep, so index.789123.js content will be change(a.123456.js -> a.abcdef.js.). index.789123.js will be change.

I can't reproduce the problem from your repo. Can you provide a more detailed reproduction path?

@poyoho We already know that this is the reason why the hash values change. We're just looking for a way to avoid this problem. Unmodified files do not change the hash in order to cache them

[869288142]

@Krryxa vite production mode use rollup bundle. you can open a issue in rollup repo.
Compared with webpack, rollup's long-term cache is not perfect

[sapphi-red]

Closing as this is a duplicate of #6773.