Remove IS_WINDOWS constant in favor of PlatformService (#21157)

Solves partially #8542

src/client/common/configSettings.ts

@@ -23,7 +23,6 @@ import { ITestingSettings } from '../testing/configuration/types';
 import { IWorkspaceService } from './application/types';
 import { WorkspaceService } from './application/workspace';
 import { DEFAULT_INTERPRETER_SETTING, isTestExecution } from './constants';
-import { IS_WINDOWS } from './platform/constants';
 import {
     IAutoCompleteSettings,
     IDefaultLanguageServer,
@@ -41,6 +40,7 @@ import {
 import { debounceSync } from './utils/decorators';
 import { SystemVariables } from './variables/systemVariables';
 import { getOSType, OSType } from './utils/platform';
+import { isWindows } from './platform/platformService';
 
 const untildify = require('untildify');
 
@@ -654,7 +654,7 @@ function getPythonExecutable(pythonPath: string): string {
 
     for (let executableName of KnownPythonExecutables) {
         // Suffix with 'python' for linux and 'osx', and 'python.exe' for 'windows'.
-        if (IS_WINDOWS) {
+        if (isWindows()) {
             executableName = `${executableName}.exe`;
             if (isValidPythonPath(path.join(pythonPath, executableName))) {
                 return path.join(pythonPath, executableName);

src/client/common/platform/platformService.ts

@@ -50,8 +50,9 @@ export class PlatformService implements IPlatformService {
         }
     }
 
+    // eslint-disable-next-line class-methods-use-this
     public get isWindows(): boolean {
-        return this.osType === OSType.Windows;
+        return isWindows();
     }
 
     public get isMac(): boolean {
@@ -72,3 +73,7 @@ export class PlatformService implements IPlatformService {
         return getArchitecture() === Architecture.x64;
     }
 }
+
+export function isWindows(): boolean {
+    return getOSType() === OSType.Windows;
+}

src/client/common/serviceRegistry.ts

@@ -57,7 +57,6 @@ import { ProductInstaller } from './installer/productInstaller';
 import { InterpreterPathService } from './interpreterPathService';
 import { BrowserService } from './net/browser';
 import { PersistentStateFactory } from './persistentState';
-import { IS_WINDOWS } from './platform/constants';
 import { PathUtils } from './platform/pathUtils';
 import { CurrentProcess } from './process/currentProcess';
 import { ProcessLogger } from './process/logger';
@@ -91,9 +90,10 @@ import { Random } from './utils/random';
 import { ContextKeyManager } from './application/contextKeyManager';
 import { CreatePythonFileCommandHandler } from './application/commands/createPythonFile';
 import { RequireJupyterPrompt } from '../jupyter/requireJupyterPrompt';
+import { isWindows } from './platform/platformService';
 
 export function registerTypes(serviceManager: IServiceManager): void {
-    serviceManager.addSingletonInstance<boolean>(IsWindows, IS_WINDOWS);
+    serviceManager.addSingletonInstance<boolean>(IsWindows, isWindows());
 
     serviceManager.addSingleton<IActiveResourceService>(IActiveResourceService, ActiveResourceService);
     serviceManager.addSingleton<IInterpreterPathService>(IInterpreterPathService, InterpreterPathService);

src/client/linters/pydocstyle.ts

@@ -4,9 +4,9 @@ import '../common/extensions';
 import { Product } from '../common/types';
 import { IServiceContainer } from '../ioc/types';
 import { traceError } from '../logging';
-import { IS_WINDOWS } from '../common/platform/constants';
 import { BaseLinter } from './baseLinter';
 import { ILintMessage, LintMessageSeverity } from './types';
+import { isWindows } from '../common/platform/platformService';
 
 export class PyDocStyle extends BaseLinter {
     constructor(serviceContainer: IServiceContainer) {
@@ -47,7 +47,7 @@ export class PyDocStyle extends BaseLinter {
                 .filter((value, index) => index < maxLines && value.indexOf(':') >= 0)
                 .map((line) => {
                     // Windows will have a : after the drive letter (e.g. c:\).
-                    if (IS_WINDOWS) {
+                    if (isWindows()) {
                         return line.substring(line.indexOf(`${baseFileName}:`) + baseFileName.length + 1).trim();
                     }
                     return line.substring(line.indexOf(':') + 1).trim();

src/test/common/configSettings.test.ts

@@ -1,10 +1,10 @@
 import * as assert from 'assert';
 import * as path from 'path';
 import * as vscode from 'vscode';
-import { IS_WINDOWS } from '../../client/common/platform/constants';
 import { SystemVariables } from '../../client/common/variables/systemVariables';
 import { getExtensionSettings } from '../extensionSettings';
 import { initialize } from './../initialize';
+import { isWindows } from '../../client/common/platform/platformService';
 
 const workspaceRoot = path.join(__dirname, '..', '..', '..', 'src', 'test');
 
@@ -27,7 +27,7 @@ suite('Configuration Settings', () => {
             }
 
             const pythonSettingValue = (pythonSettings as any)[key] as string;
-            if (key.endsWith('Path') && IS_WINDOWS) {
+            if (key.endsWith('Path') && isWindows()) {
                 assert.strictEqual(
                     settingValue.toUpperCase(),
                     pythonSettingValue.toUpperCase(),

src/test/serviceRegistry.ts

@@ -5,10 +5,9 @@ import { Container } from 'inversify';
 import { anything, instance, mock, when } from 'ts-mockito';
 import * as TypeMoq from 'typemoq';
 import { Disposable, Memento } from 'vscode';
-import { IS_WINDOWS } from '../client/common/platform/constants';
 import { FileSystem } from '../client/common/platform/fileSystem';
 import { PathUtils } from '../client/common/platform/pathUtils';
-import { PlatformService } from '../client/common/platform/platformService';
+import { PlatformService, isWindows } from '../client/common/platform/platformService';
 import { RegistryImplementation } from '../client/common/platform/registry';
 import { registerTypes as platformRegisterTypes } from '../client/common/platform/serviceRegistry';
 import { IFileSystem, IPlatformService, IRegistry } from '../client/common/platform/types';
@@ -195,7 +194,7 @@ export class IocContainer {
     }
 
     public registerMockProcess(): void {
-        this.serviceManager.addSingletonInstance<boolean>(IsWindows, IS_WINDOWS);
+        this.serviceManager.addSingletonInstance<boolean>(IsWindows, isWindows());
 
         this.serviceManager.addSingleton<IPathUtils>(IPathUtils, PathUtils);
         this.serviceManager.addSingleton<ICurrentProcess>(ICurrentProcess, MockProcess);