fixed update platform command

fix error handling on npm.view called with invalid tgz
added output to npm.install

Author: Plamen5kov

lib/node-package-manager.ts

@@ -25,7 +25,6 @@ export class NodePackageManager implements INodePackageManager {
 			}
 
 			let jsonContentBefore = this.$fs.readJson(path.join(pathToSave, "package.json")).wait();
-			// let dependenciesBefore: Array<string> = [];
 			let dependenciesBefore = _.keys(jsonContentBefore.dependencies).concat(_.keys(jsonContentBefore.devDependencies));
 
 			let flags = this.getFlagsString(config, true);
@@ -36,6 +35,8 @@ export class NodePackageManager implements INodePackageManager {
 			params = params.concat(flags);
 			try {
 				this.$childProcess.spawnFromEvent(this.getNpmExecutableName(), params, "close", { cwd: pathToSave }).wait();
+				let spawnResult:ISpawnResult = this.$childProcess.spawnFromEvent(this.getNpmExecutableName(), params, "close", { cwd: pathToSave }).wait();
+				this.$logger.out(spawnResult.stdout);
 			} catch (err) {
 				if (err.message && err.message.indexOf("EPEERINVALID") !== -1) {
 					// Not installed peer dependencies are treated by npm 2 as errors, but npm 3 treats them as warnings.
@@ -92,7 +93,12 @@ export class NodePackageManager implements INodePackageManager {
 	public view(packageName: string, config: any): IFuture<any> {
 		return (() => {
 			let flags = this.getFlagsString(config, false);
-			let viewResult = this.$childProcess.exec(`npm view ${packageName} ${flags}`).wait();
+			let viewResult: any;
+			try {
+				viewResult = this.$childProcess.exec(`npm view ${packageName} ${flags}`).wait();
+			} catch(e) {
+				this.$errors.failWithoutHelp(e);
+			}
 			return JSON.parse(viewResult);
 		}).future<any>()();
 	}

lib/services/platform-service.ts

@@ -692,10 +692,11 @@ export class PlatformService implements IPlatformService {
 
 			let newVersion = version === constants.PackageVersion.NEXT ?
 				this.$npmInstallationManager.getNextVersion(platformData.frameworkPackageName).wait() :
-				this.$npmInstallationManager.getLatestVersion(platformData.frameworkPackageName).wait();
-			let installedModuleDir = this.$npmInstallationManager.install(platformData.frameworkPackageName, this.$projectData.projectDir, {version: newVersion}).wait();
+				version || this.$npmInstallationManager.getLatestCompatibleVersion(platformData.frameworkPackageName).wait();
+			let installedModuleDir = this.$npmInstallationManager.install(platformData.frameworkPackageName, this.$projectData.projectDir, {version: newVersion, dependencyType: "save"}).wait();
 			let cachedPackageData = this.$fs.readJson(path.join(installedModuleDir, "package.json")).wait();
 			newVersion = (cachedPackageData && cachedPackageData.version) || newVersion;
+			this.$npm.uninstall(platformData.frameworkPackageName, {save: true}, this.$projectData.projectDir).wait();
 
 			let canUpdate = platformData.platformProjectService.canUpdatePlatform(installedModuleDir).wait();
 			if (canUpdate) {
@@ -723,6 +724,7 @@ export class PlatformService implements IPlatformService {
 			this.removePlatforms([packageName]).wait();
 			packageName = newVersion ? `${packageName}@${newVersion}` : packageName;
 			this.addPlatform(packageName).wait();
+			this.$logger.out("Successfully updated to version ", newVersion);
 		}).future<void>()();
 	}