When run in a Hugo based Static website Git Repo will copy content to another repo

Copy-LastBlogCommit.ps1

param (
    [string]$blog = "rfennell",
    [string]$destination = "C:\projects\bm-source\BMBlogs-Hugo" 

)

write-host "Copying last blog commit"
$commandOutput = Invoke-Expression "git diff-tree --no-commit-id --name-only -r HEAD"

foreach ($sourceFile in $commandOutput) {
    # sourceFile ends with /md 
    if ($sourceFile -like "*.md") {
        $destinationFile = $destination + "/" + $sourceFile.Replace("content", "content/$blog/").Replace("/posts", "")
    }
    if ($sourceFile -notlike "*.md") {
        $destinationFile = $destination + "/" + $sourceFile
    }

    write-host "Copying " $sourceFile " to " $destinationFile
    Copy-Item $sourceFile $destinationFile
}