Bump nuspec file version with powershell

#powershell #development

Bump Nuspec Version

Bumping the version of the nuspec file requires a little tweaking and I got some help from the slack powershell community to ensure I handled the xml parsing correctly. This was the result. If you are running a chocolatey package build or equivalent nuspec build via an agent and want a way to ensure the latest build updates the build version incrementally this should help.

This snippet should help give you a way to bump a nuspec file version programmatically.

	#requires -Module PSFramework

	<#
	.Description
	incrementally bump the version of a nuspec file, with support for what if and updated summary from readme

	#>
	[cmdletbinding(SupportsShouldProcess)]
	param()
	try
	{
	$Directory = $PSScriptRoot
	if ($null -eq $Directory)
	{
	throw "Cannot run interactively. Call file from prompt, as it needs PSScriptRoot variable to package"
	}
	# Update Version in Nuspec
	[string]$NuSpecFile = (Get-ChildItem -path $Directory -Filter *.nuspec \| Select-Object -First 1).fullname
	[xml]$xml = Get-Content -path $NuSpecFile -Raw
	$ns = [System.Xml.XmlNamespaceManager]::new($xml.NameTable)
	$ns.AddNamespace('nuspec', 'http://schemas.microsoft.com/packaging/2015/06/nuspec.xsd')
	[version]$Version = [version]::parse($xml.SelectSingleNode('/nuspec:package/nuspec:metadata/nuspec:version', $ns).InnerText)
	[version]$NewVersion = [version]::new($Version.Major, $Version.Minor, ($Version.Build + 1))
	$xml.SelectSingleNode('/nuspec:package/nuspec:metadata/nuspec:version', $ns).InnerText = $NewVersion.ToString()
	$xml.SelectSingleNode('/nuspec:package/nuspec:metadata/nuspec:description', $ns).InnerText = Get-Content -Raw (Join-Path $Directory 'ReadMe.md')

	if ($PSCmdlet.ShouldProcess($NuSpecFile, "Version: $($Version.ToString()) bumped to $($NewVersion.ToString()) and file saved"))
	{
	$xml.Save($NuSpecFile)
	Write-PSFMessage -Level Important -Message "$NuSpecFile -- Original Version: $Version -- Updated to $NewVersion"
	}
	}
	catch
	{
	throw
	}