XSD Geneator in Powershell

xsd.ps1

# Adapted from https://mylifeismymessage.net/generate-xsd-schema-from-xml-using-powershell/
param (
    [Parameter(Mandatory)] [string] $xmlFilename,
    [string] $xsdSchemaFilename = $null
)

if ([string]::IsNullOrEmpty($xsdSchemaFilename)) {
    $xsdSchemaFilename = $xmlFilename.Replace(".xml",".xsd")
}

Write-Host "XML Path: $xmlFilename" -ForegroundColor yellow   
Write-Host "XSD Path: $xsdSchemaFilename" -ForegroundColor yellow   

# Remove existing XSD
if (Test-Path -Path $xsdSchemaFilename) {
      Remove-Item -Path $xsdSchemaFilename
}

$reader = [System.Xml.XmlReader]::create($xmlFilename)
$schemaSet = New-Object System.Xml.Schema.XmlSchemaSet
$schema = New-Object System.Xml.Schema.XmlSchemaInference 
$schemaSet = $schema.InferSchema($reader)

# Create new output file
$file = New-Object System.IO.FileStream($xsdSchemaFilename, [System.IO.FileMode]::CreateNew)
$file.Close() 

$xmlWriter = New-Object System.Xml.XmlTextWriter ($xsdSchemaFilename, [System.Text.Encoding]::UTF8)
$xmlWriter.Formatting = [System.Xml.Formatting]::Indented

foreach ($s in $schemaSet.Schemas())
{
   $s.Write($xmlWriter) 
}

$xmlWriter.Close()
Write-Host "See file: $xsdSchemaFilename"