mirror of
https://github.com/PowerShell/PowerShell.git
synced 2024-11-23 17:53:58 +08:00
83 lines
3.0 KiB
PowerShell
83 lines
3.0 KiB
PowerShell
# Copyright (c) Microsoft Corporation.
|
|
# Licensed under the MIT License.
|
|
|
|
<#
|
|
.SYNOPSIS
|
|
Idempotently removes extra PowerShell paths from the machine, user and/or process environment scope with no reordering.
|
|
|
|
.DESCRIPTION
|
|
Defaults to machine scope and leaving the last sorted path alone.
|
|
Does not touch path if there is nothing to clean.
|
|
Emits one simple log line about its actions for each scope.
|
|
|
|
Also accessible in the powershell-core Chocolatey package by using -params '"/CleanUpSystemPath"'
|
|
|
|
.PARAMETER PathScope
|
|
Set of machine scopes to clean up. Valid options are one or more of: Machine, User, Process.
|
|
Default: machine
|
|
|
|
.PARAMETER RemoveAllOccurences
|
|
By default the cleanup leaves the highest sorted PowerShell path alone.
|
|
This switch causes it to be cleaned up as well.
|
|
Default: false
|
|
|
|
.EXAMPLE
|
|
.\Reset-PWSHSystemPath.ps1
|
|
|
|
Removes all PowerShell paths but the very last one when sorted in ascending order from the Machine level path.
|
|
Good for running on systems that already has at least one valid PowerShell install.
|
|
|
|
.EXAMPLE
|
|
.\Reset-PWSHSystemPath.ps1 -RemoveAllOccurences
|
|
|
|
Removes ALL PowerShell paths from the Machine level path.
|
|
Good for running right before upgrading PowerShell.
|
|
|
|
.EXAMPLE
|
|
.\Reset-PWSHSystemPath.ps1 -PathScope Machine, User, Process
|
|
|
|
Removes all paths but the very last one when sorted in ascending order.
|
|
Processes all path scopes including current process.
|
|
|
|
.EXAMPLE
|
|
.\Reset-PWSHSystemPath.ps1 -PathScope Machine, User, Process -RemoveAllOccurencs
|
|
|
|
Removes all paths from all path scopes including current process.
|
|
#>
|
|
param (
|
|
[ValidateSet("machine","user","process")]
|
|
[string[]]$PathScope="machine",
|
|
[switch]$RemoveAllOccurences
|
|
)
|
|
|
|
#Do the cleanup for all specified path scopes
|
|
ForEach ($PathScopeItem in $PathScope)
|
|
{
|
|
$AssembledNewPath = $NewPath = ''
|
|
#From the current path scope. retrieve the array of paths that match the pathspec of PowerShell (to use as a filter)
|
|
$pathstoremove = @([Environment]::GetEnvironmentVariable("PATH","$PathScopeItem").split(';') | Where-Object { $_ -ilike "*\Program Files\Powershell\6*"})
|
|
If (!$RemoveAllOccurences)
|
|
{
|
|
#If we are not removing all occurrences of PowerShell paths, then remove the highest sorted path from the filter
|
|
$pathstoremove = @($pathstoremove | Sort-Object | Select-Object -SkipLast 1)
|
|
}
|
|
Write-Verbose "Reset-PWSHSystemPath: Found $($pathstoremove.count) paths to remove from $PathScopeItem path scope: $($Pathstoremove -join ', ' | Out-String)"
|
|
If ($pathstoremove.count -gt 0)
|
|
{
|
|
foreach ($Path in [Environment]::GetEnvironmentVariable("PATH","$PathScopeItem").split(';'))
|
|
{
|
|
#rebuild the path in the same order, but eliminate the paths in the filter array and blanks
|
|
If ($Path)
|
|
{
|
|
If ($pathstoremove -inotcontains "$Path")
|
|
{
|
|
[string[]]$Newpath += "$Path"
|
|
}
|
|
}
|
|
}
|
|
$AssembledNewPath = ($newpath -join(';')).trimend(';')
|
|
$AssembledNewPath -split ';'
|
|
[Environment]::SetEnvironmentVariable("PATH",$AssembledNewPath,"$PathScopeItem")
|
|
}
|
|
}
|