DSCResources/TimezoneHelper.psm1
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#region LocalizedData $Culture = 'en-us' if (Test-Path -Path (Join-Path -Path $PSScriptRoot -ChildPath $PSUICulture)) { $Culture = $PSUICulture } Import-LocalizedData ` -BindingVariable LocalizedData ` -Filename TimezoneHelper.psd1 ` -BaseDirectory $PSScriptRoot ` -UICulture $Culture #endregion # Internal function to throw terminating error with specified errroCategory, errorId and errorMessage function New-TerminatingError { [CmdletBinding()] param ( [Parameter(Mandatory)] [String] $ErrorId, [Parameter(Mandatory)] [String] $ErrorMessage, [Parameter(Mandatory)] [System.Management.Automation.ErrorCategory] $ErrorCategory ) $exception = New-Object System.InvalidOperationException $errorMessage $errorRecord = New-Object System.Management.Automation.ErrorRecord $exception, $errorId, $errorCategory, $null throw $errorRecord } function Get-TimeZone { [CmdletBinding()] param() Write-Verbose -Message ($LocalizedData.GettingTimezoneCimMessage) $TimeZone = (Get-CimInstance ` -ClassName WIN32_Timezone ` -Namespace root\cimv2).StandardName Write-Verbose -Message ($LocalizedData.CurrentTimezoneMessage ` -f $Timezone) return $TimeZone } # function Get-TimeZone function Get-TimeZoneId { [CmdletBinding()] param( [Parameter(Mandatory = $true)] [System.String] $TimeZone ) # Convert TimeZone Standard Name to TimeZone Id $timeZoneInfo = [System.TimeZoneInfo]::GetSystemTimeZones() | Where-Object StandardName -eq $TimeZone return $timeZoneInfo.Id } function Test-TimeZone { [CmdletBinding()] param( [Parameter(Mandatory = $true)] [System.String] $ExpectTimeZoneId ) # Test Expected is same as Current $currentId = Get-TimeZoneId -TimeZone (Get-TimeZone) return $ExpectTimeZoneId -eq $currentId } function Set-TimeZone { [CmdletBinding()] param( [Parameter(Mandatory = $true)] [System.String] $TimeZone ) $AddTypeCommand = Get-Command ` -Module Microsoft.Powershell.Utility ` -Name Add-Type ` -ErrorAction SilentlyContinue if ($AddTypeCommand) { # We can use Reflection to modify the TimeZone Write-Verbose -Message ($LocalizedData.SettingTimezonedotNetMessage ` -f $TimeZone) # Add the [TimeZoneHelper.TimeZone] type if it is not defined. if (-not ([System.Management.Automation.PSTypeName]'TimeZoneHelper.TimeZone').Type) { Write-Verbose -Message ($LocalizedData.AddingSetTimeZonedotNetTypeMessage) $SetTimeZoneCs = Get-Content ` -Path (Join-Path -Path $PSScriptRoot -ChildPath 'SetTimeZone.cs') ` -Raw Add-Type ` -Language CSharp ` -TypeDefinition $SetTimeZoneCs } Set-TimeZoneUsingNET -Timezone $TimeZone } else { # For Nano Server the tzutil must be used Write-Verbose -Message ($LocalizedData.SettingTimezoneTzUtilMessage ` -f $TimeZone) try { & tzutil.exe @('/s',$TimeZone) } catch { $ErrorMsg = $_.Exception.Message Write-Verbose -Message $ErrorMsg } Write-Verbose -Message ($LocalizedData.TimezoneUpdatedMessage ` -f $TimeZone) } } # function Set-TimeZone # This function exists so that the ::Set method can be mocked by Pester. function Set-TimeZoneUsingNET { [CmdletBinding()] param( [Parameter(Mandatory = $true)] [System.String] $TimeZone ) [Microsoft.PowerShell.xTimeZone.TimeZone]::Set($TimeZone) } |