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/*---------------------------------------------------------------------------------------------
powershell.ts
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import * as os from 'os';
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import * as path from '../common/path.js';
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import * as pfs from './pfs.js';
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// This is required, since parseInt("7-preview") will return 7.
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const IntRegex: RegExp = /^\d+$/;
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const PwshMsixRegex: RegExp = /^Microsoft.PowerShell_.*/;
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const PwshPreviewMsixRegex: RegExp = /^Microsoft.PowerShellPreview_.*/;
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const enum Arch {
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x64,
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x86,
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ARM
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}
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let processArch: Arch;
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switch (process.arch) {
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case 'ia32':
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processArch = Arch.x86;
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break;
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case 'arm64':
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processArch = Arch.ARM;
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break;
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processArch = Arch.x64;
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break;
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}
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/*
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Currently, here are the values for these environment variables on their respective archs:
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On x86 process on x86:
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PROCESSOR_ARCHITECTURE is X86
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PROCESSOR_ARCHITEW6432 is undefined
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On x86 process on x64:
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PROCESSOR_ARCHITECTURE is X86
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PROCESSOR_ARCHITEW6432 is AMD64
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On x64 process on x64:
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PROCESSOR_ARCHITECTURE is AMD64
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PROCESSOR_ARCHITEW6432 is undefined
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On ARM process on ARM:
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PROCESSOR_ARCHITECTURE is ARM64
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PROCESSOR_ARCHITEW6432 is undefined
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On x86 process on ARM:
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PROCESSOR_ARCHITECTURE is X86
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PROCESSOR_ARCHITEW6432 is ARM64
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On x64 process on ARM:
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PROCESSOR_ARCHITECTURE is ARM64
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PROCESSOR_ARCHITEW6432 is undefined
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*/
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let osArch: Arch;
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if (process.env['PROCESSOR_ARCHITEW6432']) {
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osArch = process.env['PROCESSOR_ARCHITEW6432'] === 'ARM64'
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? Arch.ARM
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: Arch.x64;
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osArch = Arch.ARM;
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osArch = Arch.x86;
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osArch = Arch.x64;
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}
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export interface IPowerShellExeDetails {
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readonly displayName: string;
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readonly exePath: string;
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}
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interface IPossiblePowerShellExe extends IPowerShellExeDetails {
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exists(): Promise<boolean>;
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}
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class PossiblePowerShellExe implements IPossiblePowerShellExe {
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constructor(
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public readonly exePath: string,
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public readonly displayName: string,
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private knownToExist?: boolean) { }
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public async exists(): Promise<boolean> {
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if (this.knownToExist === undefined) {
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this.knownToExist = await pfs.SymlinkSupport.existsFile(this.exePath);