#!/usr/bin/env pwsh# Copyright 2018 the Deno authors. All rights reserved. MIT license.# TODO(everyone): Keep this script simple and easily auditable.
$ErrorActionPreference = 'Stop'
if ($v) { $Version = "v${v}"}if ($args.Length -eq 1) { $Version = $args.Get(0)}
$DenoInstall = $env:DENO_INSTALL$BinDir = if ($DenoInstall) { "$DenoInstall\bin"} else { "$Home\.deno\bin"}
$DenoZip = "$BinDir\deno.zip"$DenoExe = "$BinDir\deno.exe"$Target = 'x86_64-pc-windows-msvc'
# GitHub requires TLS 1.2[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
$DenoUri = if (!$Version) { $Response = Invoke-WebRequest 'https://github.com/denoland/deno/releases' -UseBasicParsing if ($PSVersionTable.PSEdition -eq 'Core') { $Response.Links | Where-Object { $_.href -like "/denoland/deno/releases/download/*/deno-${Target}.zip" } | ForEach-Object { 'https://github.com' + $_.href } | Select-Object -First 1 } else { $HTMLFile = New-Object -Com HTMLFile if ($HTMLFile.IHTMLDocument2_write) { $HTMLFile.IHTMLDocument2_write($Response.Content) } else { $ResponseBytes = [Text.Encoding]::Unicode.GetBytes($Response.Content) $HTMLFile.write($ResponseBytes) } $HTMLFile.getElementsByTagName('a') | Where-Object { $_.href -like "about:/denoland/deno/releases/download/*/deno-${Target}.zip" } | ForEach-Object { $_.href -replace 'about:', 'https://github.com' } | Select-Object -First 1 }} else { "https://github.com/denoland/deno/releases/download/${Version}/deno-${Target}.zip"}
if (!(Test-Path $BinDir)) { New-Item $BinDir -ItemType Directory | Out-Null}
Invoke-WebRequest $DenoUri -OutFile $DenoZip -UseBasicParsing
if (Get-Command Expand-Archive -ErrorAction SilentlyContinue) { Expand-Archive $DenoZip -Destination $BinDir -Force} else { if (Test-Path $DenoExe) { Remove-Item $DenoExe } Add-Type -AssemblyName System.IO.Compression.FileSystem [IO.Compression.ZipFile]::ExtractToDirectory($DenoZip, $BinDir)}
Remove-Item $DenoZip
$User = [EnvironmentVariableTarget]::User$Path = [Environment]::GetEnvironmentVariable('Path', $User)if (!(";$Path;".ToLower() -like "*;$BinDir;*".ToLower())) { [Environment]::SetEnvironmentVariable('Path', "$Path;$BinDir", $User) $Env:Path += ";$BinDir"}
Write-Output "Deno was installed successfully to $DenoExe"Write-Output "Run 'deno --help' to get started"