I forked a JavaScript package for another (TypeScript) project as I had to change some things and I wanted it to emit declaration files.

When running tsc locally, everything compiles and the require statements look fine while using relative paths for local files (as desired):

index.d.ts (1):

import Connection = require("./lib/connection");
import Client = require("./lib/client");
import Discovery = require("./lib/discovery");
export { Connection, Client, Discovery, Discovery as discovery };

But when installing it in another project via npm, tsc is invoked during postinstall phase and the generated declarations use require statements with the package name followed by the past instead (this is of course invalid and no typings are gathered by my IDE):

index.d.ts (2):

import Connection = require("@ercksen/esphome-native-api/src/lib/connection");
import Client = require("@ercksen/esphome-native-api/src/lib/client");
import Discovery = require("@ercksen/esphome-native-api/src/lib/discovery");
export { Connection, Client, Discovery, Discovery as discovery };

I found out that running npm run postinstall locally also produces correct results. And manual compilation inside the node_modules/@ercksen/esphome-native-api folder of the referred project also creates faulty declarations. So it has nothing to do with the fact that I create the declarations when installing (instead of pre-built).

The interesting part is: .js files work fine! How can I get that working also for .d.ts files? I think this is not the intended behavior.

Steps to reproduce (you will probably run into issues with my SSL certificate, but that would be a topic for another question):

Following works. See dist/index.d.ts (1)

git clone https://git.ercksen.de/home-automation/esphome-native-api.git
cd esphome-native-api
npm i
tsc

Following does not work. See node_modules/@ercksen/esphome-native-api/index.d.ts (2)

npm i git+https://git.ercksen.de/home-automation/esphome-native-api.git

My tsconfig.json:

{
  "compilerOptions": {
    "module": "commonjs",
    "target": "ES6",
    "outDir": "dist",
    "rootDir": "src",
    "sourceMap": false,
    "allowJs": true,
    "composite": true,
    "skipLibCheck": true,
    "esModuleInterop": true
  },
  "include": [
    "src/**/*"
  ]
}

Any help would be greatly appreciated!