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fix: use Vite root config setting instead of current working directory#15469

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teemingc merged 31 commits intoversion-3from
fix-vite-workspaces
Mar 5, 2026
Merged

fix: use Vite root config setting instead of current working directory#15469
teemingc merged 31 commits intoversion-3from
fix-vite-workspaces

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@teemingc teemingc commented Mar 2, 2026

closes #11356
closes #12140
closes #15188

This PR standardises the use of process.cwd() to prefer the Vite config root setting when available similar to VPS. This helps us resolve paths correctly before reading files or generating tsconfig paths. It eases lots of monorepo tooling usage, particularly Vitest workspaces. This also allows us to use the Vitest IDE extension to run unit tests (which didn't work before because of the aforementioned issues).

We could backport these changes to v2 but it's a bit easier to base it on v3 which already makes use of import.meta.dirname in many places thanks to #15434

I've only made changes to kit itself for now, so other packages still default to process.cwd() but those are probably less problematic since they won't run for Vitest tests


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changeset-bot bot commented Mar 2, 2026

🦋 Changeset detected

Latest commit: 4728f85

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package
Name Type
@sveltejs/kit Minor

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@teemingc teemingc changed the base branch from main to version-3 March 2, 2026 21:01
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*/
export function get_page_options(filepath) {
export function get_page_options(filepath, root) {
const input = read(path.resolve(root, filepath));
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Moved this out of the try...catch to avoid silent errors for files it can't find when calling read. The real issue was that the route filepaths weren't being resolved correctly. That's not an issue anymore now that we resolve against the root.

id: '/blog.json',
pattern: '/^/blog.json/?$/',
endpoint: { file: 'samples/basic/blog.json/+server.js', page_options: null }
endpoint: { file: 'samples/basic/blog.json/+server.js', page_options: {} }
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This fixes the test results to match the change from https://github.com/sveltejs/kit/pull/15469/changes#diff-8701fabc771d319105f7401163b7bc28189c5a11e30706215a62fb303385797a . Previously, the page options were incorrectly computed as null (unable to statically analyse). However, the correct value is {} (which means no page options exported).

@teemingc teemingc marked this pull request as ready for review March 4, 2026 13:22

fs.writeFileSync(
'./src/version.js',
path.join(import.meta.dirname, '..', 'src', 'version.js'),
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Helps the version generation test run from the Vitest extension by avoiding resolving to the wrong path

const process = await import('node:process');

relative = (file) => path.relative(process.cwd(), file);
relative = (file) => path.relative('.', file);
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Apparently '.' is equivalent to process.cwd() so that helps simplify things here

Comment on lines +10 to +20
it('should be the exact version from package.json', async () => {
const { VERSION } = await import(join(import.meta.dirname, 'version.js'));
const pkg = JSON.parse(
readFileSync(fileURLToPath(new URL('../package.json', import.meta.url)), 'utf-8')
);
assert.equal(
VERSION,
pkg.version,
'VERSION export in src/version.js does not equal version in package.json'
);
});
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Had to put the test logic inside of it so Vitest would stop skipping it from the IDE extension


typescript: {
config: (config) => {
config.include.push('../unit-test');
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Avoids a typescript error from displaying in the unit test file

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needs a changeset, but besides that it looks good to me. will this result in any changes that users of vite can see or only vitest? it might be good to call this a feat:/minor so that it's more prominent in the changelog as I imagine it will be a semi-impactful change for a subset of users

@teemingc teemingc requested a review from benmccann March 5, 2026 19:37
Co-authored-by: Tee Ming <chewteeming01@gmail.com>
@teemingc teemingc merged commit 8af47eb into version-3 Mar 5, 2026
5 of 19 checks passed
@teemingc teemingc deleted the fix-vite-workspaces branch March 5, 2026 20:16
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Volatile paths in generated tsconfig.json in monorepo Sveltekit plugin breaks vitest workspaces

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