fix(npm/pacote): allow tns to be able to use npm configuration properly

lib/bootstrap.ts

@@ -226,3 +226,5 @@ $injector.require("applePortalApplicationService", "./services/apple-portal/appl
 $injector.require("watchIgnoreListService", "./services/watch-ignore-list-service");
 
 $injector.requirePublicClass("initializeService", "./services/initialize-service");
+
+$injector.require("npmConfigService", "./services/npm-config-service");

lib/declarations.d.ts

@@ -1053,4 +1053,8 @@ interface IWatchIgnoreListService {
 	addFileToIgnoreList(filePath: string): void;
 	removeFileFromIgnoreList(filePath: string): void;
 	isFileInIgnoreList(filePath: string): boolean;
+}
+
+interface INpmConfigService {
+	getConfig(): IDictionary<any>;
 }

lib/definitions/libnpmconfig.d.ts

@@ -0,0 +1,3 @@
+declare module "libnpmconfig" {
+	export function read(options?: Object): Object;
+}

lib/services/npm-config-service.ts

@@ -0,0 +1,22 @@
+import * as npmconfig from "libnpmconfig";
+
+export class NpmConfigService implements INpmConfigService {
+	private config: IDictionary<any> = { };
+
+	constructor() {
+		this.readConfig();
+	}
+
+	public getConfig(): IDictionary<any> {
+		return this.config;
+	}
+
+	private readConfig(): void {
+		const data = npmconfig.read();
+		data.forEach((value: any, key: string) => {
+			// replace env ${VARS} in strings with the process.env value
+			this.config[key] = typeof value !== 'string' ? value : value.replace(/\${([^}]+)}/, (_, envVar) => process.env[envVar]);
+		});
+	}
+}
+$injector.register("npmConfigService", NpmConfigService);

lib/services/pacote-service.ts

@@ -7,7 +7,9 @@ export class PacoteService implements IPacoteService {
 	constructor(private $fs: IFileSystem,
 		private $injector: IInjector,
 		private $logger: ILogger,
-		private $proxyService: IProxyService) { }
+		private $npmConfigService: INpmConfigService,
+		private $proxyService: IProxyService) {
+	}
 
 	@cache()
 	public get $packageManager(): INodePackageManager {
@@ -18,13 +20,16 @@ export class PacoteService implements IPacoteService {
 	public async manifest(packageName: string, options?: IPacoteManifestOptions): Promise<any> {
 		this.$logger.trace(`Calling pacoteService.manifest for packageName: '${packageName}' and options: ${options}`);
 		const manifestOptions: IPacoteBaseOptions = await this.getPacoteBaseOptions();
+
 		if (options) {
 			_.extend(manifestOptions, options);
 		}
 
 		packageName = this.getRealPackageName(packageName);
 		this.$logger.trace(`Calling pacote.manifest for packageName: ${packageName} and options: ${JSON.stringify(manifestOptions, null, 2)}`);
-		return pacote.manifest(packageName, manifestOptions);
+		const result = pacote.manifest(packageName, manifestOptions);
+
+		return result;
 	}
 
 	public async extractPackage(packageName: string, destinationDirectory: string, options?: IPacoteExtractOptions): Promise<void> {
@@ -67,7 +72,10 @@ export class PacoteService implements IPacoteService {
 	private async getPacoteBaseOptions(): Promise<IPacoteBaseOptions> {
 		// In case `tns create myapp --template https://github.com/NativeScript/template-hello-world.git` command is executed, pacote module throws an error if cache option is not provided.
 		const cachePath = await this.$packageManager.getCachePath();
-		const pacoteOptions = { cache: cachePath };
+
+		// Add NPM Configuration to our Manifest options
+		const npmConfig = this.$npmConfigService.getConfig();
+		const pacoteOptions = _.extend(npmConfig, { cache: cachePath });
 		const proxySettings = await this.$proxyService.getCache();
 		if (proxySettings) {
 			_.extend(pacoteOptions, proxySettings);