Split up Helm dry-run output into separate files to match the template folder

Split-HelmDryRun.ps1

<#
.SYNOPSIS
Split out the manifest files from a helm dryrun for comparing against one another or the Helm /template folder

.PARAMETER line
Lines from --dry-run output

.PARAMETER OutputPath
Existing folder where to put the files

.EXAMPLE
helm install . --dry-run  --generate-name --values ..\config-values-api.yml | Split-HelmDryRun -OutputPath \temp\helm
bcomp.exe .\templates C:\temp\helm\cas-service\templates

Do a dry run of a cas-service template then launch BeyondCompare
#>
function Split-HelmDryRun
{
    [CmdletBinding()]
    param(
        [Parameter(ValueFromPipeline)]
        [string] $Line,
        [Parameter(ValueFromPipeline, Mandatory)]
        [string] $OutputPath
    )

    begin
    {
        $infile = $false
        $fileName = $null
        $ErrorActionPreference = 'Stop'
    }

    process
    {
        if ($Line -match '^# Source: (.*)')
        {
            $fileName = Join-Path $OutputPath $matches[1]
            Write-Information "Writing chart output to $fileName" -InformationAction Continue
            if (Test-Path $fileName)
            {
                Remove-Item $fileName
            }
            if (!(Test-Path (Split-Path $fileName -Parent)))
            {
                $null = mkdir (Split-Path $fileName -Parent)
            }
            $infile = $true
        }
        elseif ($Line -eq '---' -or $Line -eq 'NOTES:')
        {
            $infile = $false
            $fileName = $null
        }
        elseif ($infile)
        {
            $Line | Out-File $fileName -Encoding ascii -Append
        }
    }
}