src/ prefix is omitted everywhere in this repo when specifying file paths, how?

[rinarakaki]

I'm wondering why it's supposed to work without src/ prefix for example,

in packages/core/package.json:

{
  "exports": {
    ".": {
      "types": "./index.d.ts",
      "import": "./index.js",
      "default": "./index.js"
    },
  }
}

but actually this must be:

{
  "exports": {
    ".": {
      "types": "./src/index.d.ts",
      "import": "./src/index.js",
      "default": "./src/index.js"
    },
  }
}

Another example is in packages/next-auth/test/env.test.ts:

import { reqWithEnvURL, setEnvDefaults } from "../lib/env"
import { setEnvDefaults as coreSetEnvDefaults } from "@auth/core"
import type { NextAuthConfig } from "../lib/index.js"

but actually this must be:

import { reqWithEnvURL, setEnvDefaults } from "../src/lib/env"
import { setEnvDefaults as coreSetEnvDefaults } from "@auth/core"
import type { NextAuthConfig } from "../src/lib/index.js"

Where are these behaviours configured? Thanks.

[ndom91]

The exports point to the build output js files, not the src ts files, for example.

So after running build in the package you're referring to, you should see that in the root of the package there are the referenced index.js, etc. files