Powershell script works in ISE but not in console - function

Question

I am writing a powershell script that will start a process, monitor a folder for file changes, and then backup that folder when files are added/changed.
If I run my script from within the Powershell ISE, it works fine, I can monitor the folder and it will properly save a backup as expected.
The problem is that I want to run a batch file that will run the powershell script. But whenever I run the script from a powershell console, or whenver I run my batch file which runs the script, it doesn't work any longer. The script runs and the events are registered. When I copy a file over to the watched folder though, I ONLY get the changed event and not the created event, and the doStuff function is no longer called. I'm not sure how to go about debugging this :/
Following is my script. I have removed parts that don't pertain to what is actualyl wrong currently, so some variables I'm using here you won't see declared but they are there. I get the write-host's to the console when the changed event happens but not the created event (though as stated eariler in the ISE, I get both events and everything works just fine)
#unregister events, in case they weren't unregistered properly before. Just error siliently if they don't exist
Unregister-Event ConsoleStopped -ErrorAction SilentlyContinue
Unregister-Event FileCreated -ErrorAction SilentlyContinue
Unregister-Event FileChanged -ErrorAction SilentlyContinue
Unregister-Event TimerTick -ErrorAction SilentlyContinue
#start the console process
Write-Host Starting console process...
$consoleProcess = Start-Process "$consoleExe" -PassThru
#register to listen for when the console stops
Register-ObjectEvent $consoleProcess Exited -SourceIdentifier ConsoleStopped -Action {
Write-Host Console stopped
#unregister events
Unregister-Event ConsoleStopped -ErrorAction SilentlyContinue
Unregister-Event FileCreated -ErrorAction SilentlyContinue
Unregister-Event FileChanged -ErrorAction SilentlyContinue
if(!$timer.Enabled) {
Unregister-Event TimerElapsed -ErrorAction SilentlyContinue
Remove-Item $timer
}
Remove-Item $fsw
Remove-Item $consoleProcess
}
#watch all files/folders
$filter = '*.*' # You can enter a wildcard filter here.
# In the following line, you can change 'IncludeSubdirectories to $true if required.
$fsw = New-Object IO.FileSystemWatcher $folder, $filter -Property #{IncludeSubdirectories = $true;NotifyFilter = [IO.NotifyFilters]'DirectoryName, FileName, LastWrite'}
#register for FileCreated event
Register-ObjectEvent $fsw Created -SourceIdentifier FileCreated -Action {
write-host Created event has occurred
doStuff($Event)
}
#register for FileChanged event
Register-ObjectEvent $fsw Changed -SourceIdentifier FileChanged -Action {
Write-Host Change event has occurred
doStuff($Event)
}
function doStuff($event)
{
write-host doStuff has been called
$name = $Event.SourceEventArgs.Name
$changeType = $Event.SourceEventArgs.ChangeType
$timeStamp = $Event.TimeGenerated
Write-Host "The file '$name' in '$folder' was $changeType at $timeStamp" -fore green
if(!$timer.Enabled) {
Write-Host Starting save timer
Register-ObjectEvent $timer Elapsed -SourceIdentifier TimerElapsed -Action $TimerAction
$timer.Start()
Out-File "$backupDir\backup.log" -Append -Force -InputObject "A request for a backup created at $timeStamp"
}
else {
Write-Host A backup has already been request
}
}
function backupSave ()
{
Write-Host Starting backup...
$timestamp = Get-Date -Format o | foreach { $_ -replace ":", "." }
Copy-Item $folder "$backupDir\backup_$timestamp" -Recurse -Force
}

Answer 1

Try moving your functions to the beginning of your script.
i.e. move function doStuff($event) and function backupSave () to the beginning of the script.
The problem may be because when you are calling the functions from the script they haven't been defined yet. It works in Powershell ISE because you ran the script several times and the functions were defined at one time or another.