PowerShell/Docs/check-xml-file.md

## The *check-xml-file.ps1* Script

This PowerShell script checks the given XML file for validity.

## Parameters
```powershell
/home/mf/Repos/PowerShell/Scripts/check-xml-file.ps1 [[-file] <String>] [<CommonParameters>]

-file <String>
    Specifies the path to the XML file to check
    
    Required?                    false
    Position?                    1
    Default value                
    Accept pipeline input?       false
    Accept wildcard characters?  false

[<CommonParameters>]
    This script supports the common parameters: Verbose, Debug, ErrorAction, ErrorVariable, WarningAction, 
    WarningVariable, OutBuffer, PipelineVariable, and OutVariable.
```

## Example
```powershell
PS> ./check-xml-file myfile.xml
✔️ XML file is valid

```

## Notes
Author: Markus Fleschutz | License: CC0

## Related Links
https://github.com/fleschutz/PowerShell

## Source Code
```powershell
<#
.SYNOPSIS
	Checks the given XML file for validity
.DESCRIPTION
	This PowerShell script checks the given XML file for validity.
.PARAMETER file
	Specifies the path to the XML file to check
.EXAMPLE
	PS> ./check-xml-file myfile.xml
	✔️ XML file is valid
.LINK
	https://github.com/fleschutz/PowerShell
.NOTES
	Author: Markus Fleschutz | License: CC0
#>

param([string]$file = "")

try {
	if ($file -eq "" ) { $file = read-host "Enter path to XML file" }

	$XmlFile = Get-Item $file
	
	$script:ErrorCount = 0
	
	# Perform the XSD Validation
	$ReaderSettings = New-Object -TypeName System.Xml.XmlReaderSettings
	$ReaderSettings.ValidationType = [System.Xml.ValidationType]::Schema
	$ReaderSettings.ValidationFlags = [System.Xml.Schema.XmlSchemaValidationFlags]::ProcessInlineSchema -bor [System.Xml.Schema.XmlSchemaValidationFlags]::ProcessSchemaLocation
	$ReaderSettings.add_ValidationEventHandler({ $script:ErrorCount++ })
	$Reader = [System.Xml.XmlReader]::Create($XmlFile.FullName, $ReaderSettings)
	while ($Reader.Read()) { }
	$Reader.Close()
	
	if ($script:ErrorCount -gt 0) {
		write-warning "Invalid XML file"
		exit 1
	} 

	"✔️ XML file is valid"
	exit 0 # success
} catch {
	"⚠️ Error in line $($_.InvocationInfo.ScriptLineNumber): $($Error[0])"
	exit 1
}
```

*Generated by convert-ps2md.ps1 using the comment-based help of check-xml-file.ps1*