PackageDrop.ps1

[CmdletBinding()]
Param(
    [Parameter()]
    [String]
    $Path = 'C:\drop'
)

process {
    $FileFilter = '*'  
    $IncludeSubfolders = $false
    $AttributeFilter = [IO.NotifyFilters]::FileName, [IO.NotifyFilters]::LastWrite 

    try {
        $watcher = New-Object -TypeName System.IO.FileSystemWatcher -Property @{
            Path                  = $Path
            Filter                = $FileFilter
            IncludeSubdirectories = $IncludeSubfolders
            NotifyFilter          = $AttributeFilter
        }

        # define the code that should execute when a change occurs:
        $action = {
    
            # change type information:
            $file = (Get-ChildItem $Path -Include *.exe,*.msi -Recurse).Fullname

            Write-Host "Processing: $file"

            $chocoArgs = @('new'
            "--file='$file'"
            '--build-package'
            "--output-directory='C:\processed'")

            Write-Host "Received arguments: $($chocoArgs -join ' ')"
            & choco @chocoArgs
            
            Write-Host "Removing binary"
            Remove-Item $file -Force

            Get-ChildItem -Path 'C:\processed' -Exclude *.nupkg | Remove-Item -Recurse -Force
        }

        $handlers = . {
            Register-ObjectEvent -InputObject $watcher -EventName Changed  -Action $action 
        }

        $watcher.EnableRaisingEvents = $true

        Write-Host "Watching for changes to $Path"

        do {
            Wait-Event -Timeout 1
        } while ($true)
    }
    finally {
        # this gets executed when user presses CTRL+C:
        $watcher.EnableRaisingEvents = $false
        $handlers | ForEach-Object {
            Unregister-Event -SourceIdentifier $_.Name
        }
        $handlers | Remove-Job
        $watcher.Dispose()
  
        Write-Warning "Event Handler disabled, monitoring ends."
    }
}