fix(config): add random number to temp transpiled file

[Akryum]

Description

If two instances of vite server or builder starts simultaneously (within the same millisecond), they will attempt to create the same temporary transpiled file for the configuration. This PR adds a random number to the file name to reduce the chance of them using the same file name to almost zero.

Additional context

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What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

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[dominikg]

Note: changing the filename pattern might bust .gitignore templates.

the one we use in create-svelte would match both the old and new version, but others might have used more strict patterns and those would no longer work.

Would it work to do an exists check and then just add one to the timestamp until it doesn't?

[Akryum]

Maybe we can remove the -?

[bluwy]

I think I'm fine with this for now. Personally if we're already going this length, I'd call getHash and construct a file name, but that isn't really a "timestamp" and we can't change it drastically without risking the gitignore issue (though I don't think that's part of semver).

So for me I think this PR is good enough 👍

[patak-dev]

Let's merge this now and in Vite 5, I think we should start using a _temp_{hash} as we do in deps prebundling folders.