61 lines
2.4 KiB
PowerShell
61 lines
2.4 KiB
PowerShell
#Function to rotate the logs
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function Invoke-LogRotation ($LogFile, $MaxLogFiles, $MaxLogSize) {
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# if MaxLogFiles is 1 just keep the original one and let it grow
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if (-not($MaxLogFiles -eq 1)) {
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try {
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# get current size of log file
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$currentSize = (Get-Item $LogFile).Length
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# get log name
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$logFileName = Split-Path $LogFile -Leaf
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$logFilePath = Split-Path $LogFile
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$logFileNameWithoutExtension = [System.IO.Path]::GetFileNameWithoutExtension($logFileName)
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$logFileNameExtension = [System.IO.Path]::GetExtension($logFileName)
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if ($currentSize -ge $MaxLogSize) {
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# construct name of archived log file
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$newLogFileName = $logFileNameWithoutExtension + (Get-Date -Format 'yyyyMMddHHmmss').ToString() + $logFileNameExtension
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Rename-Item -Path $LogFile -NewName $newLogFileName -Force -Confirm:$false
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# create new file
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Write-ToLog "New log file created"
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# if MaxLogFiles is 0 don't delete any old archived log files
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if (-not($MaxLogFiles -eq 0)) {
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# set filter to search for archived log files
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$archivedLogFileFilter = $logFileNameWithoutExtension + '??????????????' + $logFileNameExtension
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# get archived log files
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$oldLogFiles = Get-Item -Path "$(Join-Path -Path $logFilePath -ChildPath $archivedLogFileFilter)"
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if ([bool]$oldLogFiles) {
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# compare found log files to MaxLogFiles parameter of the log object, and delete oldest until we are
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# back to the correct number
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if (($oldLogFiles.Count + 1) -gt $MaxLogFiles) {
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[int]$numTooMany = (($oldLogFiles.Count) + 1) - $MaxLogFiles
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$oldLogFiles | Sort-Object 'LastWriteTime' | Select-Object -First $numTooMany | Remove-Item
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}
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}
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}
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#Log Header
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Write-ToLog -LogMsg "CHECK FOR APP UPDATES (System context)" -IsHeader
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Write-ToLog -LogMsg "Max Log Size reached: $MaxLogSize bytes - Rotated Logs"
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Return $True
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}
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}
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catch {
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Return $False
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}
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}
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}
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