Errors when importing package.json in a library

[darondel-yoobic]

Type of Issue

[X] Bug Report
[ ] Feature Request

Description

Goal: import some fields in package.json inside of an Angular library.

Two ways:

• Import it via require (const version = require('../package.json').version), but then there is this error during ng build:

ERROR: Could not resolve '../package.json' from dist/library/esm2015/environment.js
An unhandled exception occurred: Could not resolve '../package.json' from dist/library/esm2015/environment.js

• Import it via import (import { version } from '../package.json'), but then there is this error during ng build:

An unhandled exception occurred: projects/library/src/environment.ts:1:25 - error TS6059: File '<library-path>/package.json' is not under 'rootDir' '<library-path>/src'. 'rootDir' is expected to contain all source files.

1 import { version } from '../package.json';

The first usage is working if you fix the version of @rollup/plugin-commonjs to 11.0.2. It fails with 11.1.0.

How To Reproduce

I compiled those cases in a repository:

• Import via require.
• Import via import.

In these branches, just do:

npm install
ng build --project library

You should see the error.

Expected Behaviour

In the first case, it seems that there is an issue with Rollup.
The second one seems to be more Typescript friendly but cannot use it at the moment. Is it possible to achieve it?

Version Information

$ node_modules/.bin/ng-packagr --version
ng-packagr: 9.1.1
@angular/compiler: 9.1.1
rollup: 2.6.1
tsickle:
typescript: 3.8.3

Thanks for your help!
Let me know if you need more information. :)

[cjz9032]

same issue, I only have a not ideal workaround,
@ts-ignore
import packageJson from '../../package.json'

You may noticed, this only work when it as a output in dist folder.