tsconfigPaths behaves not the same as tsc

[codeart1st]

Environment

Node.js v22.22.0 - jiti@latest

Reproduction

https://stackblitz.com/edit/vitejs-vite-vzxdmpru?file=tsconfig.json

Describe the bug

• split tsconfig.json in seperate referenced configs
• define paths in tsconfig.node.json not in the main tsconfig.json
• include test.ts file which includes src/test.ts by '@/test'
• npm run test # tsc -b && JITI_TSCONFIG_PATHS=1 npx -y jiti ./test.ts
• tsc works - jiti not

Workaround:

• in main tsconfig.json add "compilerOptions": { "paths": { "@/": ["./src/"] } }
• now it works in tsc and jiti

Seems to be, that jiti not support references with paths.

Additional context

No response

Logs

[pi0]

Jiti uses https://npmx.dev/package/get-tsconfig (createPathsMatcher) can we reproduce with that too?

[codeart1st]

jiti/src/jiti.ts

Line 61 in fd3bb28

const tsconfig = getTsconfig(searchPath);

https://github.com/privatenumber/get-tsconfig/tree/24bc5a798af42c3725b9bbb8a9ae9566e4293120#example

import { getTsconfig } from 'get-tsconfig'

// Searches for tsconfig.json starting in the current directory
console.log(getTsconfig())

// Find tsconfig.json from a TypeScript file path
console.log(getTsconfig('./path/to/index.ts'))

// Find tsconfig.json from a directory file path
console.log(getTsconfig('./path/to/directory'))

// Explicitly pass in tsconfig.json path
console.log(getTsconfig('./path/to/tsconfig.json'))

// Search for jsconfig.json - https://code.visualstudio.com/docs/languages/jsconfig
console.log(getTsconfig('.', 'jsconfig.json'))

// Find the tsconfig that actually applies to a file (Language Server behavior)
// Skips tsconfig files where the file is excluded or not included
console.log(getTsconfig('./src/index.ts', 'tsconfig.json', new Map(), true))

The problem seems to be that tsc uses the last approach with match correct tsconfig file based on include input.

We need to pass something like that getTsconfig(filename, undefined, undefined, true)