ML - dashboard icons and links (#10153)

* ML - dashboard icons and links

extensions/machine-learning/src/common/processService.ts

@@ -0,0 +1,91 @@
+/*---------------------------------------------------------------------------------------------
+ *  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 childProcess from 'child_process';
+
+const ExecScriptsTimeoutInSeconds = 600000;
+export class ProcessService {
+
+	public timeout = ExecScriptsTimeoutInSeconds;
+
+	public async execScripts(exeFilePath: string, scripts: string[], args?: string[], outputChannel?: vscode.OutputChannel): Promise<string> {
+		return new Promise<string>((resolve, reject) => {
+
+			const scriptExecution = childProcess.spawn(exeFilePath, args);
+			let timer: NodeJS.Timeout;
+			let output: string = '';
+			scripts.forEach(script => {
+				scriptExecution.stdin.write(`${script}\n`);
+			});
+			scriptExecution.stdin.end();
+
+			// Add listeners to print stdout and stderr if an output channel was provided
+
+			scriptExecution.stdout.on('data', data => {
+				if (outputChannel) {
+					this.outputDataChunk(data, outputChannel, '    stdout: ');
+				}
+				output = output + data.toString();
+			});
+			scriptExecution.stderr.on('data', data => {
+				if (outputChannel) {
+					this.outputDataChunk(data, outputChannel, '    stderr: ');
+				}
+				output = output + data.toString();
+			});
+
+			scriptExecution.on('exit', (code) => {
+				if (timer) {
+					clearTimeout(timer);
+				}
+				if (code === 0) {
+					resolve(output);
+				} else {
+					reject(`Process exited with code: ${code}. output: ${output}`);
+				}
+
+			});
+			timer = setTimeout(() => {
+				try {
+					scriptExecution.kill();
+				} catch (error) {
+					console.log(error);
+				}
+			}, this.timeout);
+		});
+	}
+
+	public async executeBufferedCommand(cmd: string, outputChannel?: vscode.OutputChannel): Promise<string> {
+		return new Promise<string>((resolve, reject) => {
+			if (outputChannel) {
+				outputChannel.appendLine(`    > ${cmd}`);
+			}
+
+			let child = childProcess.exec(cmd, {
+				timeout: this.timeout
+			}, (err, stdout) => {
+				if (err) {
+					reject(err);
+				} else {
+					resolve(stdout);
+				}
+			});
+
+			// Add listeners to print stdout and stderr if an output channel was provided
+			if (outputChannel) {
+				child.stdout.on('data', data => { this.outputDataChunk(data, outputChannel, '    stdout: '); });
+				child.stderr.on('data', data => { this.outputDataChunk(data, outputChannel, '    stderr: '); });
+			}
+		});
+	}
+
+	private outputDataChunk(data: string | Buffer, outputChannel: vscode.OutputChannel, header: string): void {
+		data.toString().split(/\r?\n/)
+			.forEach(line => {
+				outputChannel.appendLine(header + line);
+			});
+	}
+}