angular.json

{
    "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
    "cli": {
      "analytics": false
    },
    "version": 1,
    "newProjectRoot": "./",
    "projects": {
        "angular2-hotkeys": {
            "projectType": "library",
            "root": "./",
            "sourceRoot": "src",
            "prefix": "lib",
            "architect": {
                "build": {
                    "builder": "@angular-devkit/build-angular:ng-packagr",
                    "options": {
                        "tsConfig": "tsconfig.lib.json",
                        "project": "ng-package.json"
                    },
                    "configurations": {
                        "production": {
                            "tsConfig": "tsconfig.lib.prod.json"
                        }
                    }
                },
                "test": {
                    "builder": "@angular-devkit/build-angular:karma",
                    "options": {
                        "main": "src/test.ts",
                        "tsConfig": "tsconfig.spec.json",
                        "karmaConfig": "karma.conf.js"
                    }
                },
                "lint": {
                    "builder": "@angular-devkit/build-angular:tslint",
                    "options": {
                        "tsConfig": [
                            "tsconfig.lib.json",
                            "tsconfig.spec.json"
                        ],
                        "exclude": [
                            "**/node_modules/**"
                        ]
                    }
                }
            }
        }
    }
}