Support tsconfig extending multiple tsconfigs, typescript 5.0

[JeremyMoeglich]

Describe the bug

If your tsconfig extends multiple other tsconfigs, the build / dev server crashes with the error: TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received an instance of Array.

This is useful when your in a monorepo with shared compiler options while also extending ./.svelte-kit/tsconfig.json in on of the apps

This feature is introduced in Typescript 5.0

I'll try to fix this in a PR, If I fail I'll comment

Reproduction

https://stackblitz.com/edit/sveltejs-kit-template-default-zk7trz?file=tsconfig.json

The dev server should error out by itself, if it doesn't try npm run build

Logs

> vite build

error during build:
TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received an instance of Array
    at new NodeError (node:internal/errors:399:5)
    at validateString (node:internal/validators:163:11)
    at Object.resolve (node:path:1102:7)
    at validate_user_config (file:///home/jeremy/dev/Web/Tagaro-Web/node_modules/.pnpm/@sveltejs+kit@1.11.0_svelte@3.56.0+vite@4.1.4/node_modules/@sveltejs/kit/src/core/sync/write_tsconfig.js:179:50)
    at write_tsconfig (file:///home/jeremy/dev/Web/Tagaro-Web/node_modules/.pnpm/@sveltejs+kit@1.11.0_svelte@3.56.0+vite@4.1.4/node_modules/@sveltejs/kit/src/core/sync/write_tsconfig.js:45:19)
    at init (file:///home/jeremy/dev/Web/Tagaro-Web/node_modules/.pnpm/@sveltejs+kit@1.11.0_svelte@3.56.0+vite@4.1.4/node_modules/@sveltejs/kit/src/core/sync/sync.js:16:2)
    at Module.all (file:///home/jeremy/dev/Web/Tagaro-Web/node_modules/.pnpm/@sveltejs+kit@1.11.0_svelte@3.56.0+vite@4.1.4/node_modules/@sveltejs/kit/src/core/sync/sync.js:57:2)
    at config (file:///home/jeremy/dev/Web/Tagaro-Web/node_modules/.pnpm/@sveltejs+kit@1.11.0_svelte@3.56.0+vite@4.1.4/node_modules/@sveltejs/kit/src/exports/vite/index.js:291:34)
    at runConfigHook (file:///home/jeremy/dev/Web/Tagaro-Web/node_modules/.pnpm/vite@4.1.4/node_modules/vite/dist/node/chunks/dep-ca21228b.js:62375:31)
    at async resolveConfig (file:///home/jeremy/dev/Web/Tagaro-Web/node_modules/.pnpm/vite@4.1.4/node_modules/vite/dist/node/chunks/dep-ca21228b.js:61876:14)
 ELIFECYCLE  Command failed with exit code 1.

System Info

System:
    OS: Linux 6.2 Arch Linux
    CPU: (16) x64 AMD Ryzen 7 5700X 8-Core Processor
    Memory: 15.49 GB / 31.27 GB
    Container: Yes
    Shell: 5.9 - /usr/bin/zsh
  Binaries:
    Node: 19.7.0 - /usr/bin/node
    npm: 9.2.0 - /usr/bin/npm
  Browsers:
    Firefox: 110.0.1

Severity

serious, but I can work around it

Additional Information

The source of this error seems to be

function validate_user_config(kit, cwd, out, config) {
	// we need to check that the user's tsconfig extends the framework config
	const extend = config.options.extends;
	const extends_framework_config = extend && path.resolve(cwd, extend) === out;
        // ...

located in https://github.com/sveltejs/kit/blob/master/packages/kit/src/core/sync/write_tsconfig.js

[JeremyMoeglich]

It seems Vite is also affected by this.

Svelte-preprocess, isn't affected by this issue specifically, but typescript 5.0 deprecates importsNotUsedAsValues and throws an error