detect windowsOS - if win32 use npx.cm otherwise use npx for xslt-js task

Author: pgfearo

src/documentChangeHandler.ts

@@ -13,6 +13,7 @@ export interface TagRenameEdit {
 export class DocumentChangeHandler {
 	public static lastActiveXMLEditor: vscode.TextEditor|null = null;
 	public static lastXMLDocumentGlobalData: GlobalInstructionData[] = [];
+	public static isWindowsOS: boolean | undefined;
 
 	private onDidChangeRegistration: vscode.Disposable | null = null;
 	private xmlDocumentRegistered = false;

src/extension.ts

@@ -25,6 +25,7 @@ import { DCPSymbolProvider } from './dcpSymbolProvider';
 import { XsltTokenDiagnostics } from './xsltTokenDiagnostics';
 import { window } from 'vscode';
 import { XSLTHoverProvider } from './xsltHoverProvider';
+import * as os from 'os';
 
 
 
@@ -43,6 +44,7 @@ const legend = (function () {
 })();
 
 export function activate(context: vscode.ExtensionContext) {
+	DocumentChangeHandler.isWindowsOS = os.platform() === 'win32';
 	const xsltDiagnosticsCollection = vscode.languages.createDiagnosticCollection('xslt');
 	const xsltSymbolProvider = new XsltSymbolProvider(XSLTConfiguration.configuration, xsltDiagnosticsCollection);
 

src/saxonJsTaskProvider.ts

@@ -8,6 +8,7 @@ import * as vscode from 'vscode';
 import * as path from 'path';
 import * as fs from 'fs';
 import { SaxonTaskProvider } from './saxonTaskProvider';
+import { DocumentChangeHandler } from './documentChangeHandler';
 
 function exists(file: string): Promise<boolean> {
     return new Promise<boolean>((resolve, _reject) => {
@@ -139,6 +140,7 @@ export class SaxonJsTaskProvider implements vscode.TaskProvider {
                 this.templateTaskFound = true;
             }
 
+            let npxCommand = DocumentChangeHandler.isWindowsOS? 'npx.cmd' : 'npx';
             let commandLineArgs: string[] = ['xslt3'];
 
             let xsltParameters: XSLTParameter[] = xsltTask.parameters? xsltTask.parameters: [];
@@ -184,7 +186,7 @@ export class SaxonJsTaskProvider implements vscode.TaskProvider {
             // this is overriden if problemMatcher is set in the tasks.json file      
             let problemMatcher = "$saxon-xslt-js";
 
-            const processExecution = new vscode.ProcessExecution('npx', commandLineArgs.concat(xsltParametersCommand));
+            const processExecution = new vscode.ProcessExecution(npxCommand, commandLineArgs.concat(xsltParametersCommand));
             let newTask = new vscode.Task(xsltTask, xsltTask.label, source, processExecution, problemMatcher);
 
             //let newTask = new vscode.Task(xsltTask, xsltTask.label, source, new vscode.ShellExecution(commandline), problemMatcher);