fix: remove buildTimeImportMetaUrl

[sapphi-red]

Description

This error happens for almost all users.

Error: cannot test case insensitive FS, CLIENT_ENTRY does not point to an existing file: D:\documents\GitHub\vite\packages\vite\dist\client\client.mjs

This does not happen only for a user which is using self-built Vite and the generated dist directory is not removed.

It is p5 but since #8743 is not released yet, a new release is not urgent.

refs #8743
refs vitejs/vite-ecosystem-ci#83

Additional context

vite/packages/vite/src/node/constants.ts

Lines 63 to 70 in f018f13

	export const VITE_PACKAGE_DIR = resolve(
	fileURLToPath(import.meta.url),
	'../../..'
	)
	export const CLIENT_ENTRY = resolve(VITE_PACKAGE_DIR, 'dist/client/client.mjs')
	export const ENV_ENTRY = resolve(VITE_PACKAGE_DIR, 'dist/client/env.mjs')
	export const CLIENT_DIR = path.dirname(CLIENT_ENTRY)

vite/packages/vite/src/node/utils.ts

Lines 171 to 186 in c2b09db

	function testCaseInsensitiveFS() {
	if (!CLIENT_ENTRY.endsWith('client.mjs')) {
	throw new Error(
	`cannot test case insensitive FS, CLIENT_ENTRY const doesn't contain client.mjs`
	)
	}
	if (!fs.existsSync(CLIENT_ENTRY)) {
	throw new Error(
	'cannot test case insensitive FS, CLIENT_ENTRY does not point to an existing file: ' +
	CLIENT_ENTRY
	)
	}
	return fs.existsSync(CLIENT_ENTRY.replace('client.mjs', 'cLiEnT.mjs'))
	}
	export const isCaseInsensitiveFS = testCaseInsensitiveFS()

This is the code throwing the error.

Also IIUC a code like this will be broken if it is replaced on build time.

vite/packages/vite/src/node/config.ts

Line 988 in c2b09db

const _require = createRequire(import.meta.url)

---

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

Before submitting the PR, please make sure you do the following

• Read the Contributing Guidelines.
• Read the Pull Request Guidelines and follow the Commit Convention.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Ideally, include relevant tests that fail without this PR but pass with it.

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[sapphi-red]

pnpm test-build-legacy-cjs passed in my local.

[patak-dev]

Since the bug is fixed, we can remove this workaround. @sodatea let us know if you think something should still be done here.

[sodatea]

I think in the end, we'll still need the plugin. Resolving import.meta.env at runtime makes its behavior implicitly dependent on the chunk layout. Such implicit dependency doesn't look good for long-term maintenance.
I'll find a better way to fix it, though.