ProgramManagement

1.1.1

Public/Update-ChocolateyEnv.ps1

                                <#

    .SYNOPSIS

        This function updates $env:Path to include directories that contain programs installed via the Chocolatey

        Package Repository / Chocolatey CmdLine. It also loads Chocolatey PowerShell Modules required for package

        installation via a Chocolatey Package's 'chocoinstallscript.ps1'.

        NOTE: This function will remove paths in $env:Path that do not exist on teh filesystem.

    .DESCRIPTION

        See .SYNOPSIS

    .NOTES

    .PARAMETER ChocolateyDirectory

        This parameter is OPTIONAL.

        This parameter takes a string that represents the path to the location of the Chocolatey directory on your filesystem.

        Use this parameter ONLY IF Chocolatey packages are NOT located under "C:\Chocolatey" or "C:\ProgramData\chocolatey". 

    .PARAMETER UninstallAllSimilarlyNamedPackages

        This parameter is OPTIONAL.

        This parameter is a switch. If used, all programs that match the string provided to the -ProgramName

        parameter will be uninstalled. The user will NOT receive a prompt for specific selection.

    .EXAMPLE

        # Open an elevated PowerShell Session, import the module, and -

        PS C:\Users\zeroadmin> Update-ChocolateyEnv

#>

function Update-ChocolateyEnv {

    [CmdletBinding()]

    Param(

        [Parameter(Mandatory=$False)]

        [string]$ChocolateyDirectory

    )

    ##### BEGIN Main Body #####

    if (![bool]$(Get-Command choco -ErrorAction SilentlyContinue)) {

        [System.Collections.ArrayList]$PotentialChocolateyPaths = @()

        if ($ChocolateyDirectory) {

            $null = $PotentialChocolateyPaths.Add($ChocolateyDirectory)

        }

        else {

            if (Test-Path "C:\Chocolatey") {

                $null = $PotentialChocolateyPaths.Add("C:\Chocolatey")

            }

            if (Test-Path "C:\ProgramData\chocolatey") {

                $null = $PotentialChocolateyPaths.Add("C:\ProgramData\chocolatey")

            }

        }

    }

    else {

        $ChocolateyPath = "$($($(Get-Command choco).Source -split "chocolatey")[0])chocolatey"

    }

    [System.Collections.ArrayList]$ChocolateyPathsPrep = @()

    [System.Collections.ArrayList]$ChocolateyPathsToAddToEnvPath = @()

    foreach ($PotentialPath in $PotentialChocolateyPaths) {

        if (Test-Path $PotentialPath) {

            $($(Get-ChildItem $PotentialPath -Directory | foreach {

                Get-ChildItem $_.FullName -Recurse -File

            } | foreach {

                if ($_.Extension -eq ".exe" -or $_.Extension -eq ".bat") {

                    $_.Directory.FullName

                }

            }) | Sort-Object | Get-Unique) | foreach {

                $null = $ChocolateyPathsPrep.Add($_.Trim("\\"))

            }   

        }

    }

    foreach ($ChocoPath in $ChocolateyPathsPrep) {

        if ($(Test-Path $ChocoPath) -and $($env:Path -split ";") -notcontains $ChocoPath -and $ChocoPath -ne $null) {

            $null = $ChocolateyPathsToAddToEnvPath.Add($ChocoPath)

        }

    }

    foreach ($ChocoPath in $ChocolateyPathsToAddToEnvPath) {

        if ($env:Path[-1] -eq ";") {

            $env:Path = "$env:Path" + $ChocoPath + ";"

        }

        else {

            $env:Path = "$env:Path" + ";" + $ChocoPath

        }

    }

    # Remove any repeats in $env:Path

    $UpdatedEnvPath = $($($($env:Path -split ";") | foreach {

        if (-not [System.String]::IsNullOrWhiteSpace($_)) {

            if (Test-Path $_) {

                $_.Trim("\\")

            }

        }

    }) | Select-Object -Unique) -join ";"

    # Next, find chocolatey-core.psm1, chocolateysetup.psm1, chocolateyInstaller.psm1, and chocolateyProfile.psm1

    # and import them

    [System.Collections.ArrayList]$PotentialHelpersDirItems = @()

    foreach ($PotentialPath in $PotentialChocolateyPaths) {

        [array]$HelperDir = Get-ChildItem $PotentialPath -Recurse -Directory -Filter "helpers" | Where-Object {$_.FullName -match "chocolatey\\helpers"}

        if ($HelperDir.Count -gt 0) {

            $null = $PotentialHelpersDirItems.Add($HelperDir)

        }

    }

    if ($PotentialHelpersDirItems.Count -gt 0) {

        [array]$ChocoHelperDir = $($PotentialHelpersDirItems | Sort-Object -Property LastWriteTime)[-1]

    }

    if ($ChocoHelperDirItem -ne $null) {

        $ChocoCoreModule = $(Get-ChildItem -Path $ChocoHelperDirItem.FullName -Recurse -File -Filter "*chocolatey-core.psm1").FullName

        $ChocoSetupModule = $(Get-ChildItem -Path $ChocoHelperDirItem.FullName -Recurse -File -Filter "*chocolateysetup.psm1").FullName

        $ChocoInstallerModule = $(Get-ChildItem -Path $ChocoHelperDirItem.FullName -Recurse -File -Filter "*chocolateyInstaller.psm1").FullName

        $ChocoProfileModule = $(Get-ChildItem -Path $ChocoHelperDirItem.FullName -Recurse -File -Filter "*chocolateyProfile.psm1").FullName

        $ChocoModulesToImportPrep = @($ChocoCoreModule, $ChocoSetupModule, $ChocoInstallerModule, $ChocoProfileModule)

        [System.Collections.ArrayList]$ChocoModulesToImport = @()

        foreach ($ModulePath in $ChocoModulesToImportPrep) {

            if ($ModulePath -ne $null) {

                $null = $ChocoModulesToImport.Add($ModulePath)

            }

        }

        foreach ($ModulePath in $ChocoModulesToImport) {

            Remove-Module -Name $([System.IO.Path]::GetFileNameWithoutExtension($ModulePath)) -ErrorAction SilentlyContinue

            Import-Module -Name $ModulePath

        }

    }

    # Make sure we have ChocolateyInstall and ChocolateyPath environment variables are set

    $env:ChocolateyInstall = "C:\ProgramData\chocolatey"

    $env:ChocolateyPath = $env:ChocolateyInstall

    $null = [Environment]::SetEnvironmentVariable("ChocolateyInstall", $env:ChocolateyInstall, "User")

    $null = [Environment]::SetEnvironmentVariable("ChocolateyInstall", $env:ChocolateyInstall, "Machine")

    $null = [Environment]::SetEnvironmentVariable("ChocolateyPath", $env:ChocolateyPath, "User")

    $null = [Environment]::SetEnvironmentVariable("ChocolateyPath", $env:ChocolateyPath, "Machine")

    # Ensure that we have an "extensions" folder under $env:ProgramData\chocolatey

    if (Test-Path $env:ChocolateyPath) {

        $ChocoExtensionsFolder = "$env:ProgramData\chocolatey\extensions"

        if (!$(Test-Path $ChocoExtensionsFolder)) {

            $null = New-Item -ItemType Directory -Path $ChocoExtensionsFolder

        }

        $ExtensionModules = Get-ChildItem "$env:ProgramData\chocolatey\lib" -Directory | Where-Object {$_.Name -match "\.extension\."}

        foreach ($ModuleDirItem in $ExtensionModules) {

            if (Test-Path "$ChocoExtensionsFolder\$($ModuleDirItem.Name)") {

                $null = Remove-Item -Path "$ChocoExtensionsFolder\$($ModuleDirItem.Name)" -Recurse -Force

            }

            $null = Copy-Item -Path $ModuleDirItem.FullName -Destination $ChocoExtensionsFolder -Recurse -Force

        }

    }

    $UpdatedEnvPath

    ##### END Main Body #####

}

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# SIG # End signature block