script file, wait function until end of generation files - powershell

Question

I have a script file (batch file) which generate three files in a specific folder. Then i have a ps1 file which copy / move the generated files to another server / folders. Separately, everything is working properly
I'd like if it's possible to merge this, and have a wait function between the two scripts. In fact launching the copy / move ps1 function, only when the three files was correctly generated.

Answer 1

The following assumes:
that the files are created and written in full in a single operation.
that it is the appearance of a *.zip file that signals that all files of interest have been created (though they may still in the process of being written to), as you've indicated in a later comment.
$inFolder = '.' # set to the folder of interest.
$outFolder = './out' # ditto
Write-Verbose -vb 'Waiting for a *.zip file to appear...'
while (-not (Test-Path "$inFolder/*.zip")) { Start-Sleep 1 }
# Get a list of all files.
$files = Get-ChildItem -File $inFolder
Write-Verbose -vb 'Waiting for all files to be written completely...'
$files | ForEach-Object {
do {
# Infer from the ability to obtain an exclusive lock that the file has
# has been written in its entirety.
try { [IO.File]::Open($_.FullName, 'Open', 'Read', 'None').Dispose(); return }
catch { Start-Sleep 1 }
} while ($true)
}
# Move the files elsewhere
Write-Verbose -vb 'Moving...'
$files | Move-Item -Destination $outFolder -WhatIf
Note: The -WhatIf common parameter in the last command above previews the operation. Remove -WhatIf once you're sure the operation will do what you want.

Answer 2

param(
[String]$sourceDirectory = "c:\tmp\001",
[String]$destDirectory = "c:\tmp\001"
)
Get-ChildItem $sourceDirectory | ? {
#this step wait while locks free
[bool]$flag
while (!$flag) {
try {
$FileStream = [System.IO.File]::Open($_,'Open','Write')
$FileStream.Close()
$FileStream.Dispose()
$flag = $true
}
catch{
Start-ScheduledTask -s 1
$null
}
}
$true
} | Copy-Item -Destination $destDirectory