ng-package.json is ignored if in same directory as package.json

Type of Issue

[x] Bug Report
[ ] Feature Request

Description

It is pretty common to create an ng-package.json file and put it alongside package.json, and use that as the input to ng-packagr. It is expected that package.json would be ignored, since it is just for development. With version 2.3 and 2.4 this scenario is broken. The entire contents of ng-pacakge.json will be ignore and the contents of package.json used instead.

How To Reproduce

1. Create an Angular app with a normal package.json
2. Create a file called ng-package.json alongside package.json, e.g.

{
  "$schema": "./node_modules/ng-packagr/package.schema.json",
  "name": "myapp",
  "version": "0.0.1",
  "ngPackage": {
    "lib": {
      "entryFile": "public_api.ts"
    }
  }
}

1. Create a public_api.ts file, again in that same directory
2. Run ng-packagr -p ng-package.json

I see this error:

BUILD ERROR
error TS6053: File '/Users/pbeber/myapp/src/public_api.ts' not found.

This error is happening because it is ignoring the contents of ng-package.json and using package.json instead. Package.json has no ngPackage node so it is using the default value for ngPackage.lib.entryFile which is “src/public_api.ts”.

I made a repo that reproduces the problem:

git clone https://github.com/philipbeber/packagr-example.git
cd packagr-example
npm install
npm run packagr

Expected Behaviour

I expect it to work and to use the config parameters in ng-pacakge.json, since that’s the file I’m telling it to use.

Version Information

$ node_modules/.bin/ng-packagr --version
ng-packagr:            2.4.2
@angular/compiler:     5.2.10
@angular/compiler-cli: 5.2.9
rollup:                0.55.5
tsickle:               0.27.2
typescript:            2.5.3

[philipbeber]

Same thing then. The ngPackage is only needed in package.json, not ng-package.json.

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