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POFilewatcher - catching multiple events issue
 

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  1. POFilewatcher - catching multiple events issue
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    <p>I have a script that watches for files and triggers events on things like change. It works except there are duplicate events triggered for the same file (previous Stackflow question) which I need to handle. I am writing the filename to a logfile and only re-logging it if it is not in there. </p> <p>The problem is I think the events are being fired synchronously and I am getting 2 entries in the log for 1 file change even though I am checking for dups. I am not sure how to work around this.</p> <p>Here is the code:</p> <pre><code>Unregister-Event FW* $source = 'S:\FIS-BIC Reporting\Report Output Files\IT\' $filter = '*.*' $MasterFile = "H:\PS\EmailNotifications.csv" $LogFile = "H:\EmailNotify.log" $FilesToCheck = import-csv -path $Masterfile if (! (Test-Path $Logfile)) { $Output = "Date|Filename|FilenameSpec|Email" $Output | Out-File $LogFile } function Get-CharRight($str,$chars) { return $str.Substring($str.Length – $chars, $chars) } function ProcessFile() { param ([string]$filename) Write-Host "file: $filename" $ext= (Get-CharRight $filename 3) if ($ext -ne "tmp") { foreach($FileToCheck in $FilesToCheck) { if($filename -like $FileToCheck.FilenameSpec) { Write-Host "Match" #check log to see if an email was already sent $Exists = import-csv -path $Logfile -delimiter "|" | where-object {$_.Filename -eq $filename} Write-Host ($Exists.Count -eq $null) if ($Exists.Count -eq $null) { Write-Host "Not in logfile" $Date = Get-Date -format G $Output = $Date + "|" + $filename + "|" + $FileToCheck.FilenameSpec + "|" + $FileToCheck.Email $Output | Out-File $LogFile -append } else {write-host "duplicate"} } } } } $fsw = New-Object IO.FileSystemWatcher $source, $filter -Property @{IncludeSubdirectories = $true; NotifyFilter = [IO.NotifyFilters]'FileName, LastWrite, Attributes'} Register-ObjectEvent $fsw Changed -SourceIdentifier FWFileChanged -Action { ProcessFile $Event.SourceEventArgs.FullPath } Register-ObjectEvent $fsw Created -SourceIdentifier FWFileCreated -Action { ProcessFile $Event.SourceEventArgs.FullPath } while($true) { start-sleep -s 2 } </code></pre> <p>`</p>
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    1. COIs $Event.SourceEventArgs.ChangeType the same for each change? What is changing the files, and do you know how it is doing the file writes?
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      1. POFilewatcher - catching multiple events issue
      1. USJustin Dunlap
    2. COExcel is changing the files and I know it uses temp files and does more than just a straight write. The ChangeType is the same (changed).
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      1. USuser1612851
    3. COEven if I change a file in notepad, I get 2 changes for the same file. This was discussed in a previous question. My issue is accounting for it.
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      1. USuser1612851
 

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