Feature/dotnet popup (#10231)

* Add a pop up for dotnet install if not present

* Second option of default location for mac/linux

* correcting the pop up message

* remove extra dependency

* updating as per PR comments

extensions/sql-database-projects/src/controllers/mainController.ts

@@ -12,6 +12,7 @@ import { SqlDatabaseProjectTreeViewProvider } from './databaseProjectTreeViewPro
 import { getErrorMessage } from '../common/utils';
 import { ProjectsController } from './projectController';
 import { BaseProjectTreeItem } from '../models/tree/baseTreeItem';
+import { NetCoreTool } from '../tools/netcoreTool';
 
 const SQL_DATABASE_PROJECTS_VIEW_ID = 'sqlDatabaseProjectsView';
 
@@ -22,10 +23,12 @@ export default class MainController implements vscode.Disposable {
 	protected _context: vscode.ExtensionContext;
 	protected dbProjectTreeViewProvider: SqlDatabaseProjectTreeViewProvider = new SqlDatabaseProjectTreeViewProvider();
 	protected projectsController: ProjectsController;
+	protected netcoreTool: NetCoreTool;
 
 	public constructor(context: vscode.ExtensionContext) {
 		this._context = context;
 		this.projectsController = new ProjectsController(this.dbProjectTreeViewProvider);
+		this.netcoreTool = new NetCoreTool();
 	}
 
 	public get extensionContext(): vscode.ExtensionContext {
@@ -56,6 +59,9 @@ export default class MainController implements vscode.Disposable {
 		this.extensionContext.subscriptions.push(vscode.window.registerTreeDataProvider(SQL_DATABASE_PROJECTS_VIEW_ID, this.dbProjectTreeViewProvider));
 
 		await templates.loadTemplates(path.join(this._context.extensionPath, 'resources', 'templates'));
+
+		// ensure .net core is installed
+		this.netcoreTool.findOrInstallNetCore();
 	}
 
 	/**

extensions/sql-database-projects/src/test/netCoreTool.test.ts

@@ -0,0 +1,48 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as should from 'should';
+import * as os from 'os';
+import * as vscode from 'vscode';
+import { NetCoreTool, DBProjectConfigurationKey, NetCoreInstallLocationKey, NextCoreNonWindowsDefaultPath } from '../tools/netcoreTool';
+import { isNullOrUndefined } from 'util';
+
+describe('NetCoreTool: Net core install popup tests', function (): void {
+
+	it('settings value should override default paths', async function (): Promise<void> {
+		try {
+			// update settings and validate
+			await vscode.workspace.getConfiguration(DBProjectConfigurationKey).update(NetCoreInstallLocationKey, 'test value path', true);
+			const netcoreTool = new NetCoreTool();
+			should(netcoreTool.netcoreInstallLocation).equal('test value path'); // the path in settings should be taken
+			should(netcoreTool.isNetCoreInstallationPresent).equal(false); // dotnet can not be present at dummy path in settings
+		}
+		finally {
+			// clean again
+			await vscode.workspace.getConfiguration(DBProjectConfigurationKey).update(NetCoreInstallLocationKey, '', true);
+		}
+	});
+
+	it('should find right default paths', async function (): Promise<void> {
+		const netcoreTool = new NetCoreTool();
+		netcoreTool.findOrInstallNetCore();
+
+		if (os.platform() === 'win32') {
+			// check that path should start with c:\program files
+			let result = isNullOrUndefined(netcoreTool.netcoreInstallLocation) || netcoreTool.netcoreInstallLocation.toLowerCase().startsWith('c:\\program files');
+			should(result).true('dotnet is either not present or in pogramfiles by default');
+		}
+
+		if (os.platform() === 'linux' || os.platform() === 'darwin') {
+			//check that path should start with /usr/local/share
+			let result = isNullOrUndefined(netcoreTool.netcoreInstallLocation) || netcoreTool.netcoreInstallLocation.toLowerCase().startsWith(NextCoreNonWindowsDefaultPath);
+			should(result).true('dotnet is either not present or in /usr/local/share by default');
+		}
+	});
+});
+
+export async function sleep(ms: number): Promise<{}> {
+	return new Promise(resolve => setTimeout(resolve, ms));
+}

extensions/sql-database-projects/src/tools/netcoreTool.ts

@@ -0,0 +1,78 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the Source EULA. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as vscode from 'vscode';
+import * as path from 'path';
+import * as fs from 'fs';
+import * as os from 'os';
+import { isNullOrUndefined } from 'util';
+import * as nls from 'vscode-nls';
+const localize = nls.loadMessageBundle();
+
+export const DBProjectConfigurationKey: string = 'sqlDatabaseProjects';
+export const NetCoreInstallLocationKey: string = 'netCoreSDKLocation';
+export const NextCoreNonWindowsDefaultPath = '/usr/local/share';
+export const NetCoreInstallationConfirmation: string = localize('sqlDatabaseProjects.NetCoreInstallationConfirmation', "The .NET Core SDK cannnot be located. Project build will not work. Please install the same or update the .Net Core SDK location in settings if already installed.");
+export const UpdateNetCoreLocation: string = localize('sqlDatabaseProjects.UpdateNetCoreLocation', "Update .Net Core location");
+export const InstallNetCore: string = localize('sqlDatabaseProjects.InstallNetCore', "Install .Net Core SDK");
+
+export class NetCoreTool {
+
+	public findOrInstallNetCore(): void {
+		if (!this.isNetCoreInstallationPresent) {
+			this.showInstallDialog();
+		}
+	}
+
+	private showInstallDialog(): void {
+		vscode.window.showInformationMessage(NetCoreInstallationConfirmation, UpdateNetCoreLocation, InstallNetCore).then(async (result) => {
+			if (result === UpdateNetCoreLocation) {
+				//open settings
+				vscode.commands.executeCommand('workbench.action.openGlobalSettings');
+			}
+			else if (result === InstallNetCore) {
+				//open install link
+				const dotnetcoreURL = 'https://dotnet.microsoft.com/download/dotnet-core/3.1';
+				vscode.env.openExternal(vscode.Uri.parse(dotnetcoreURL));
+			}
+		});
+	}
+
+	public get isNetCoreInstallationPresent(): Boolean {
+		return (!isNullOrUndefined(this.netcoreInstallLocation) && fs.existsSync(this.netcoreInstallLocation));
+	}
+
+	public get netcoreInstallLocation(): string {
+		return vscode.workspace.getConfiguration(DBProjectConfigurationKey)[NetCoreInstallLocationKey] ||
+			this.defaultLocalInstallLocationByDistribution;
+	}
+
+	private get defaultLocalInstallLocationByDistribution(): string | undefined {
+		const osPlatform: string = os.platform();
+		return (osPlatform === 'win32') ? this.defaultWindowsLocation :
+			(osPlatform === 'darwin' || osPlatform === 'linux') ? this.defaultnonWindowsLocation :
+				undefined;
+	}
+
+	private get defaultnonWindowsLocation(): string | undefined {
+		const defaultNonWindowsInstallLocation = NextCoreNonWindowsDefaultPath; //default folder for net core sdk
+		return this.getDotnetPathIfPresent(defaultNonWindowsInstallLocation) ||
+			this.getDotnetPathIfPresent(os.homedir()) ||
+			undefined;
+	}
+
+	private get defaultWindowsLocation(): string | undefined {
+		return this.getDotnetPathIfPresent(process.env['ProgramW6432']) ||
+			this.getDotnetPathIfPresent(process.env['ProgramFiles(x86)']) ||
+			this.getDotnetPathIfPresent(process.env['ProgramFiles']);
+	}
+
+	private getDotnetPathIfPresent(folderPath: string | undefined): string | undefined {
+		if (!isNullOrUndefined(folderPath) && fs.existsSync(path.join(folderPath, 'dotnet'))) {
+			return path.join(folderPath, 'dotnet');
+		}
+		return undefined;
+	}
+}