configfunctions/Invoke-TestXmlAttributeConfigFunction.ps1
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function Invoke-TestXmlAttributeConfigFunction { <# .SYNOPSIS Checks if passed node has an attribute and the attribute has an expected value .EXAMPLE This sample command: Invoke-TestXmlAttributeConfigFunction -XmlPath $webConfigPath -XPath "//system.web/membership" -AttrName 'hashAlgorithmType' -ExpectedValue 'SHA1' .LINK #> [CmdletBinding(SupportsShouldProcess=$true)] Param( [Parameter(Mandatory=$true)] [ValidateScript({ Test-Path $_ })] [string] $XmlPath, [Parameter(Mandatory=$true)] [string] $XPath, [Parameter(Mandatory=$true)] [string] $AttrName, [Parameter(Mandatory=$true)] [string] $ExpectedValue ) Write-Verbose "Checking node $XPath in file $XmlPath" [xml]$XmlDocument = Get-Content -Path $XmlPath $node = $XmlDocument.SelectSingleNode($XPath) $attr = $Node.Attributes[$AttrName] if( $attr -ne $null ) { if( $ExpectedValue -ne $null -and $attr.Value -ne $ExpectedValue ) { return $false } return $true } else { return $false } } Export-ModuleMember Invoke-TestXmlAttributeConfigFunction Register-SitecoreInstallExtension -Command Invoke-TestXmlAttributeConfigFunction -As TestXmlAttribute -Type ConfigFunction |