GoogleCloud

1.0.1.9

AppendPsModulePath.ps1

                                # Copyright 2015-2016 Google Inc. All Rights Reserved.

# Licensed under the Apache License Version 2.0.

#

# Appends the Cloud Tools for PowerShell module location to the registry's PSModulePath environment

# variable

param($installPath) # Let a user manually select a Cloud SDK install path

$installPath = $installPath -or $args[0]

# Find the Google Cloud SDK install path from the registry.

if (-not $installPath) {

    $hklmPath = "HKLM:\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\Google Cloud SDK"

    $hkcuPath = "HKCU:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Google Cloud SDK"

    if (Test-Path $hklmPath) {

        $installPath = Get-ItemPropertyValue $hklmPath InstallLocation

    } elseif (Test-Path $hkcuPath) {

        $installPath = Get-ItemPropertyValue $hkcuPath InstallLocation

    } else {

        Write-Error "Can not find Cloud SDK from the registry."

        return

    }

}

$installPath = $installPath -replace '"' # Registry values had quotes for some reason

# The folder above where the PowerShell cmdlets are installed. PowerShell will crawl subfolders

# looking for .psd1 files. (So it should find .\GoogleCloud\GoogleCloud.psd1.)

$googlePowerShellPath = Join-Path $installPath "google-cloud-sdk\platform\PowerShell"

if (-not (Test-Path $googlePowerShellPath)) {

    Write-Error "Can not find Google PowerShell. $googlePowerShellPath does not exist."

    return

}

# Get the value of the two registry keys that initialize the environment variable.

$hklmLocation = "HKLM:\SYSTEM\CurrentControlSet\Control\Session Manager\Environment"

$hklmValue = (Get-ItemProperty $hklmLocation).PSModulePath

$hkcuLocation = "HKCU:\Environment"

$hkcuValue = (Get-ItemProperty $hkcuLocation).PSModulePath

$regValue = (($hklmValue, $hkcuValue | ?{$_}) -join ";")

if(($regValue -split ";" -contains $googlePowerShellPath))

{

    Write-Warning "Path already exists."

    return

}

$wid = [Security.Principal.WindowsIdentity]::GetCurrent()

$wip = New-Object Security.Principal.WindowsPrincipal $wid

$isElevated = $wip.IsInRole([Security.Principal.WindowsBuiltinRole]::Administrator)

if ($isElevated -and (Test-Path $hklmPath))

{

    # If we are running as administrator, and the Cloud SDK is installed for all users,

    # append to the PSModluePath in the local machine registry location.

    Write-Verbose "Adding to registry key for all users."

    Push-Location $hklmLocation

    # Don't add a semicolon if $hklmValue is $null

    Set-ItemProperty . PSModulePath (($hklmValue, $googlePowerShellPath | ?{$_}) -join ";")

}

else

{

    # If we are running as a local user, or Cloud SDK is installed for just the current user,

    # append to the PSModluePath in the current user registry location.

    Write-Verbose "Adding to registry key for user $env:UserName."

    Push-Location $hkcuLocation

    # Don't add a semicolon if $hkcuValue is $null

    Set-ItemProperty . PSModulePath (($hkcuValue, $googlePowerShellPath | ?{$_}) -join ";")

}

Write-Output (Get-ItemProperty . PSModulePath)

Pop-Location

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