functions/configuration/Unregister-PSFConfig.ps1
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function Unregister-PSFConfig { <# .SYNOPSIS Removes registered configuration settings. .DESCRIPTION Removes registered configuration settings. This function can be used to remove settings that have been persisted for either user or computer. Note: This command has no effect on configuration setings currently in memory. .PARAMETER ConfigurationItem A configuration object as returned by Get-PSFConfig. .PARAMETER FullName The full name of the configuration setting to purge. .PARAMETER Module The module, amongst which settings should be unregistered. .PARAMETER Name The name of the setting to unregister. For use together with the module parameter, to limit the amount of settings that are unregistered. .PARAMETER Scope Settings can be set to either default or enforced, for user or the entire computer. By default, only DefaultSettings for the user are unregistered. Use this parameter to choose the actual scope for the command to process. .EXAMPLE PS C:\> Get-PSFConfig | Unregister-PSFConfig Completely removes all registered configurations currently loaded in memory. In most cases, this will mean removing all registered configurations. .EXAMPLE PS C:\> Unregister-PSFConfig -Scope SystemDefault -FullName 'MyModule.Path.DefaultExport' Unregisters the setting 'MyModule.Path.DefaultExport' from the list of computer-wide defaults. Note: Changing system wide settings requires running the console with elevation. .EXAMPLE PS C:\> Unregister-PSFConfig -Module MyModule Unregisters all configuration settings for the module MyModule. #> [CmdletBinding(DefaultParameterSetName = 'Pipeline')] param ( [Parameter(ValueFromPipeline = $true, ParameterSetName = 'Pipeline')] [PSFramework.Configuration.Config[]] $ConfigurationItem, [Parameter(ValueFromPipeline = $true, ParameterSetName = 'Pipeline')] [string[]] $FullName, [Parameter(Mandatory = $true, ParameterSetName = 'Module')] [string] $Module, [Parameter(ParameterSetName = 'Module')] [string] $Name = "*", [PSFramework.Configuration.ConfigScope] $Scope = "UserDefault" ) begin { if (($PSVersionTable.PSVersion.Major -ge 6) -and ($PSVersionTable.OS -notlike "*Windows*") -and ($Scope -band 15)) { Stop-PSFFunction -Message "Cannot unregister configurations from registry on non-windows machines." -Tag 'NotSupported' -Category ResourceUnavailable return } #region Initialize Collection $registryProperties = @() if ($Scope -band 1) { if (Test-Path $script:path_RegistryUserDefault) { $registryProperties += Get-ItemProperty -Path $script:path_RegistryUserDefault } } if ($Scope -band 2) { if (Test-Path $script:path_RegistryUserEnforced) { $registryProperties += Get-ItemProperty -Path $script:path_RegistryUserEnforced } } if ($Scope -band 4) { if (Test-Path $script:path_RegistryMachineDefault) { $registryProperties += Get-ItemProperty -Path $script:path_RegistryMachineDefault } } if ($Scope -band 8) { if (Test-Path $script:path_RegistryMachineEnforced) { $registryProperties += Get-ItemProperty -Path $script:path_RegistryMachineEnforced } } $pathProperties = @() if ($Scope -band 16) { $fileUserLocalSettings = @() if (Test-Path (Join-Path $script:path_FileUserLocal "psf_config.json")) { $fileUserLocalSettings = Get-Content (Join-Path $script:path_FileUserLocal "psf_config.json") -Encoding UTF8 | ConvertFrom-Json } if ($fileUserLocalSettings) { $pathProperties += [pscustomobject]@{ Path = (Join-Path $script:path_FileUserLocal "psf_config.json") Properties = $fileUserLocalSettings Changed = $false } } } if ($Scope -band 32) { $fileUserSharedSettings = @() if (Test-Path (Join-Path $script:path_FileUserShared "psf_config.json")) { $fileUserSharedSettings = Get-Content (Join-Path $script:path_FileUserShared "psf_config.json") -Encoding UTF8 | ConvertFrom-Json } if ($fileUserSharedSettings) { $pathProperties += [pscustomobject]@{ Path = (Join-Path $script:path_FileUserShared "psf_config.json") Properties = $fileUserSharedSettings Changed = $false } } } if ($Scope -band 64) { $fileSystemSettings = @() if (Test-Path (Join-Path $script:path_FileSystem "psf_config.json")) { $fileSystemSettings = Get-Content (Join-Path $script:path_FileSystem "psf_config.json") -Encoding UTF8 | ConvertFrom-Json } if ($fileSystemSettings) { $pathProperties += [pscustomobject]@{ Path = (Join-Path $script:path_FileSystem "psf_config.json") Properties = $fileSystemSettings Changed = $false } } } #endregion Initialize Collection $common = 'PSPath', 'PSParentPath', 'PSChildName', 'PSDrive', 'PSProvider' } process { if (Test-PSFFunctionInterrupt) { return } # Silently skip since no action necessary if (-not ($pathProperties -or $registryProperties)) { return } foreach ($item in $ConfigurationItem) { # Registry foreach ($hive in ($registryProperties | Where-Object { $_.PSObject.Properties.Name -eq $item.FullName })) { Remove-ItemProperty -Path $hive.PSPath -Name $item.FullName } # Prepare file foreach ($fileConfig in ($pathProperties | Where-Object { $_.Properties.FullName -contains $item.FullName })) { $fileConfig.Properties = $fileConfig.Properties | Where-Object FullName -NE $item.FullName $fileConfig.Changed = $true } } foreach ($item in $FullName) { # Ignore string-casted configurations if ($item -ceq "PSFramework.Configuration.Config") { continue } # Registry foreach ($hive in ($registryProperties | Where-Object { $_.PSObject.Properties.Name -eq $item })) { Remove-ItemProperty -Path $hive.PSPath -Name $item } # Prepare file foreach ($fileConfig in ($pathProperties | Where-Object { $_.Properties.FullName -contains $item })) { $fileConfig.Properties = $fileConfig.Properties | Where-Object FullName -NE $item $fileConfig.Changed = $true } } if ($Module) { $compoundName = "{0}.{1}" -f $Module, $Name # Registry foreach ($hive in ($registryProperties | Where-Object { $_.PSObject.Properties.Name -like $compoundName })) { foreach ($propName in $hive.PSObject.Properties.Name) { if ($propName -in $common) { continue } if ($propName -like $compoundName) { Remove-ItemProperty -Path $hive.PSPath -Name $propName } } } # Prepare file foreach ($fileConfig in ($pathProperties | Where-Object { $_.Properties.FullName -like $compoundName })) { $fileConfig.Properties = $fileConfig.Properties | Where-Object FullName -NotLike $compoundName $fileConfig.Changed = $true } } } end { if (Test-PSFFunctionInterrupt) { return } foreach ($fileConfig in $pathProperties) { if (-not $fileConfig.Changed) { continue } if ($fileConfig.Properties) { $fileConfig.Properties | ConvertTo-Json | Set-Content -Path $fileConfig.Path -Encoding UTF8 } else { Remove-Item $fileConfig.Path } } } } |