public/Uninstall-Chocolatey.ps1
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<# .SYNOPSIS Attempts to remove the Chocolatey Software form the system. .DESCRIPTION This command attempts to clean the system from the Chocolatey Software files. It first look into the provided $InstallDir, or in the $Env:ChocolateyInstall if not provided. If the $InstallDir provided is $null or empty, it will attempts to find the Chocolatey folder from the choco.exe command path. If no choco.exe is found under the $InstallDir, it will fail to uninstall. This command also remove the $InstallDir from the Path. .PARAMETER InstallDir Installation Directory to remove Chocolatey from. Default looks up in $Env:ChocolateyInstall Or, if specified with an empty/$null value, tries to find from the choco.exe path. .EXAMPLE Uninstall-Chocolatey -InstallDir '' #Will uninstall Chocolatey from the location of Choco.exe if found from $Env:PATH #> function Uninstall-Chocolatey { [CmdletBinding( SupportsShouldProcess )] Param( [AllowNull()] [string] $InstallDir = $Env:ChocolateyInstall ) process { #If InstallDir is empty or null, select from whee choco.exe is available if (-not $InstallDir) { Write-Debug "Attempting to find the choco.exe command." $chocoCmd = Get-Command 'choco.exe' -CommandType Application -ErrorAction SilentlyContinue #Install dir is where choco.exe is found minus \bin subfolder if (-not ($chocoCmd -and ($chocoBin = Split-Path -Parent $chocoCmd.Path -ErrorAction SilentlyContinue))) { Write-Warning "Could not find Chocolatey Software Install Folder" return } else { Write-Debug "Resolving $chocoBin\.." $InstallDir = (Resolve-Path ([io.path]::combine($chocoBin,'..'))).Path } } Write-Verbose "Chocolatey Installation Folder is $InstallDir" $chocoFiles = @('choco.exe','chocolatey.exe','cinst.exe','cuninst.exe','clist.exe','cpack.exe','cpush.exe', 'cver.exe','cup.exe').Foreach{$_;"$_.old"} #ensure the .old are also removed #If Install dir does not have a choco.exe, do nothing as it could delete unwanted files if ( [string]::IsNullOrEmpty($InstallDir) -or -not ((Test-Path $InstallDir) -and (Test-Path "$InstallDir\Choco.exe")) ) { Write-Warning 'Chocolatey Installation Folder Not found' return } #all files under $InstallDir # Except those in $InstallDir\lib unless $_.Basename -in $chocoFiles # Except those in $installDir\bin unless $_.Basename -in $chocoFiles $FilesToRemove = Get-ChildItem $InstallDir -Recurse | Where-Object { -not ( ( $_.FullName -match [regex]::escape([io.path]::combine($InstallDir,'lib')) -or $_.FullName -match [regex]::escape([io.path]::combine($InstallDir,'bin')) ) -and $_.Name -notin $chocofiles ) } Write-Debug ($FilesToRemove -join "`r`n>> ") if ($Pscmdlet.ShouldProcess('Chocofiles')) { $FilesToRemove | Sort-Object -Descending FullName | remove-item -Force -recurse -ErrorAction SilentlyContinue } Write-Verbose "Removing $InstallDir from the Path and the ChocolateyInstall Environment variable." [Environment]::SetEnvironmentVariable('ChocolateyInstall', $null, 'Machine') $Env:ChocolateyInstall = $null $AllPaths = [Environment]::GetEnvironmentVariable('Path','machine').split(';').where{ ![string]::IsNullOrEmpty($_) -and $_ -notmatch "^$([regex]::Escape($InstallDir))\\bin$" } | Select-Object -unique Write-Debug 'Reset the machine Path without choco (and dedupe/no null)' Write-Debug ($AllPaths |Format-Table | Out-String) [Environment]::SetEnvironmentVariable('Path', ($AllPaths -Join ';'), 'Machine') #refresh after uninstall $envPath = [Environment]::GetEnvironmentVariable('Path','Machine') [Environment]::SetEnvironmentVariable($EnvPath,'process') Write-Verbose 'Unistallation complete' } } |