Script to setup Chocolatey and install packages in one go, at machine scope, compatible with Azure VM script extension.

setup-server.ps1

#Requires -Version 3
$ErrorActionPreference = 'Stop'
Set-StrictMode -Version 3

# setup Chocolatey and apply patches

Write-Host 'Installing Chocolatey'
$Env:ChocolateyInstall = "$Env:SystemDrive\chocolatey"
$Env:ChocolateyBinRoot = "$Env:ChocolateyInstall\tools"
[Environment]::SetEnvironmentVariable('ChocolateyInstall', $Env:ChocolateyInstall, 'Machine')
[Environment]::SetEnvironmentVariable('ChocolateyBinRoot', $Env:ChocolateyBinRoot, 'Machine')
Write-Host "PATH before installing Chocolatey: $Env:PATH"
$oldUserPath = [Environment]::GetEnvironmentVariable('PATH', 'User')
iex ((new-object net.webclient).DownloadString('https://chocolatey.org/install.ps1'))
[Environment]::SetEnvironmentVariable('ChocolateyInstall', $null, 'User')
$path = [Environment]::GetEnvironmentVariable('PATH', 'Machine')
if (-not ($path -like "*$Env:ChocolateyInstall*")) {
	Write-Host 'Migrating per-user ChocolateyInstall PATH addition to machine scope'
	$path = "{0};{1};" -f $path.Trim(';'), "$Env:ChocolateyInstall\bin"
	[Environment]::SetEnvironmentVariable('PATH', $path, 'Machine')
}
Write-Host 'Restoring initial per-user PATH'
[Environment]::SetEnvironmentVariable('PATH', $oldUserPath, 'User')
$Env:PATH = [Environment]::GetEnvironmentVariable('PATH')
Write-Host "Refreshed PATH after installing Chocolatey: $Env:PATH"

Write-Host 'Ensuring NuGet sees Chocolatey as installed'
$chocoVer = Get-Content (Join-Path $Env:ChocolateyInstall ChocolateyInstall\chocolatey.ps1) | ? { $_ -match '\$chocVer\s*=\s*''(?<v>[^'']+)''' } | % { $matches['v'] }
$chocoPackagePath = Join-Path $Env:ChocolateyInstall "lib\chocolatey.$chocoVer"
$chocoZip = Join-Path $Env:TEMP "chocolatey\chocInstall\chocolatey.zip"
$chocoNupkg = "$chocoPackagePath\chocolatey.$chocoVer.nupkg"
if (-not (Test-Path $chocoPackagePath)) {
	New-Item -ItemType Directory $chocoPackagePath | Out-Null
	Write-Host "Copying $chocoZip to $chocoNupkg"
	Copy-Item -Path $chocoZip -Destination $chocoNupkg
}
Write-Host 'Ensured NuGet sees Chocolatey as installed'

# fixed in https://github.com/chocolatey/chocolatey/pull/476
Write-Host 'Fixing Get-ChocolateyUnzip.ps1 running as SYSTEM on 64-bit OS'
$f = Join-Path -Resolve $Env:ChocolateyInstall chocolateyinstall\helpers\functions\Get-ChocolateyUnzip.ps1
$c = Get-Content $f
$c | % {
		if ($_ -like "*Running 'Get-ChocolateyUnzip'*") {
			@"
  # 32-bit 7za.exe would not find C:\Windows\system32\config\systemprofile\AppData\Local\Temp
  if ([IntPtr]::Size -ne 4) {
    `$fileFullPath = `$fileFullPath -ireplace ([regex]::Escape([Environment]::GetFolderPath('System'))),(Join-Path `$Env:SystemRoot sysnative)
  }

"@
		}
		$_
	} | Set-Content $f -Encoding ASCII
Write-Host 'Fixed Get-ChocolateyUnzip.ps1'

Write-Host 'Fixing Chocolatey-Version in strict mode'
$f = Join-Path -Resolve $Env:ChocolateyInstall chocolateyinstall\functions\Chocolatey-Version.ps1
$c = Get-Content $f
$c | % {
		$l = $_
		if ($l -like '*$packages.count*') {
			$l = $l.Replace('$packages.count', '($packages | Measure-Object).Count')
		}
		$l.Replace('–', '-')           # word processor-style en dashes, U+2013
	} | Set-Content $f -Encoding ASCII
Write-Host 'Fixed Chocolatey-Version.ps1'

function cinst
{
	[CmdletBinding()]
	Param (
		[Parameter(Mandatory = $true)]
		[string] $PackageName,
		[ValidateNotNullOrEmpty()]
		[string] $Source,
		[ValidateNotNullOrEmpty()]
		[string] $Version,
		[string] $InstallArguments,
		[switch] $OverrideArgs
	)
	
	$global:LastExitCode = 0
	$additionalArguments = @{}
	if ($Source -ne '') {
		$additionalArguments.source = $Source
	}
	if ($Version -ne '') {
		$additionalArguments.Version = $Version
	}
	if ($InstallArguments -ne '') {
		$additionalArguments.installArguments = $InstallArguments
	}
	if ($OverrideArgs) {
		$additionalArguments.overrideArgs = $true
	}
	
	"{0:yyyy-MM-dd HH:mm:ss} Installing package $PackageName from source '$Source'" -f (Get-Date)
	& "$Env:ChocolateyInstall\chocolateyInstall\chocolatey.ps1" install $packageName @additionalArguments
	if ($LastExitCode -ne 0) {
		throw "Installation failed (code $LastExitCode) for package $PackageName"
	}
	"{0:yyyy-MM-dd HH:mm:ss} Installed package $PackageName from source '$Source'" -f (Get-Date)
}


# install packages

cinst NetFx3 -source windowsfeatures

cinst notepad2-mod
cinst sysinternals          # adds to path in user scope
cinst elevate.native
cinst javaruntime-preventasktoolbar
cinst err
cinst fciv


# clean up environment 

if ([Environment]::GetEnvironmentVariable('ChocolateyInstall', 'User') -ne $null) {
	Write-Host 'Removing per-user ChocolateyInstall again (update of choco adds it)'
	[Environment]::SetEnvironmentVariable('ChocolateyInstall', $null, 'User')
}
$curPath = [Environment]::GetEnvironmentVariable('PATH', 'User')
if ($curPath -ne $oldUserPath) {
	Write-Host 'Migrating per-user PATH additions to machine scope'
	$path = [Environment]::GetEnvironmentVariable('PATH', 'Machine').Trim(';')
	$pathDelta = $curPath
	if ($oldUserPath -ne $null) {
		$pathDelta = $pathDelta -ireplace ([regex]::Escape($oldUserPath.Trim(';'))), $null
	}
	$pathDelta -split ';' | ? { $_ -ne '' } | % {
		$chunk = $_
		Write-Host "Migrating path component: $chunk"
		if (-not ($path -like "*$chunk*")) {
			$path = "{0};{1};" -f $path.Trim(';'), "$chunk"
		}
	}
	[Environment]::SetEnvironmentVariable('PATH', $path, 'Machine')
	Write-Host 'Restoring initial per-user PATH'
	[Environment]::SetEnvironmentVariable('PATH', $oldUserPath, 'User')
	$Env:PATH = [Environment]::GetEnvironmentVariable('PATH')
	Write-Host "Refreshed PATH: $Env:PATH"
}