Wrong complierOptions when tsconfig in cwd is extended from another tsconfig

[meteorlxy]

For example:

{
  "extends": "../../tsconfig.base.json",
  "compilerOptions": {
    "rootDir": "./src",
    "outDir": "./dist",
    "declaration": false
  }
}

Seems that rollup-plugin-typescript does not try to resolve the base tsconfig, so that the compilerOptions is not extended.

[Tylerian]

I also had this same problem but I went further and had a peek into the source code of the plugin and found that it only imports the compilerOptions object from the tsconfig.json file.

There isn't any easy workaround for this issue because TypeScript Compiler API only takes compilerOptions as an argument for their transpilation functions as shown in their official docs.

If I were one of the core maintainers of this plugin I would consider changing the tsconfig property name to compilerOptions as it better describes what it really does. WDYT @Victorystick?

[shellscape]

Hey folks (this is a canned reply, but we mean it!). Thanks to everyone who participated in this issue. We're getting ready to move this plugin to a new home at https://github.com/rollup/plugins, and we have to do some spring cleaning of the issues to make that happen. We're going to close this one, but it doesn't mean that it's not still valid. We've got some time yet before the move while we resolve pending Pull Requests, so if this issue is still relevant, please @ me and I'll make sure it gets transferred to the new repo. 🍺

[jacksteamdev]

@shellscape This still a relevant problem!

That extended tsconfigs are not supported should be documented or fixed.

Thanks for all your hard work!

[shellscape]

This should be fixed by rollup/rollup-plugin-typescript#153, please let us know if it's not.

[cortopy]

@shellscape I don't think it's fixed. I'm getting

@rollup/plugin-typescript: Couldn't process compiler options

when using extends: 'my-package where 'my-package' is a module in my monorepo

[shellscape]

@NotWoods any thoughts?

[meteorlxy]

Uh I have a look at rollup/rollup-plugin-typescript#153, seems that it does not solve muti-level extends?

[NotWoods]

I'm going to reopen the issue and try to solve the failing use cases described here.