Sync folder functions using Robocopy

gistfile1.txt

function Sync-FolderUsingRobocopy
{
    [CmdletBinding()]
    param(
        # Source Path
        [Parameter(Mandatory = $true)]
        [string]$Source,

        # Destination Path
        [Parameter(Mandatory = $true)]
        [string]$Destination,

        # Log file Path
        [Parameter(Mandatory = $false)]
        [string]$LogFile = 'C:\Temp\RobocopyLog.txt'
    )

    # Robocopy params
    $RobocopyParams = ('/MIR /W:0 /R:0 /NP /TEE /MT:16').Split(' ')
    <#
/E   :: copy subdirectories, including Empty ones. IMPORTANT ! NE pas mettre /MIR, car si un user supprime un fichier à la source il sera supprimé à  la cible
/R:n :: number of Retries on failed copies: default 1 million. /R:0 = Ne pas réessayer. Si un fichier est locké, on l'aura le lendemain
/W:n :: Wait time between retries: default is 30 seconds. R:0 = Ne pas attendre
/NP  :: No Progress - don't display percentage copied.
/TEE :: output to console window, as well as the log file.
/LOG:file :: output status to LOG file (overwrite existing log). On fera 1 fichier de log distinct à chaque fois
/MT[:n] :: Perform multi-threaded copies with n threads (default is 8). n must be at least 1 and not greater than 128. This option is incompatible with the /IPG and /EFSRAW options.
#>

    # LogFile Arguments
    $LogFileArgs = "/LOG:$Logfile"

    # Exécuting Robocopy command
    & Robocopy.exe $Source $Destination $RobocopyParams $LogFileArgs

    #region comment
    <#  Exit Code Reference
    Source : https://learn.microsoft.com/en-us/troubleshoot/windows-server/backup-and-storage/return-codes-used-robocopy-utility
    0 	No files were copied. No failure was met. No files were mismatched. The files already exist in the destination directory; so the copy operation was skipped.
    1 	All files were copied successfully.
    2 	There are some additional files in the destination directory that aren't present in the source directory. No files were copied.
    3 	Some files were copied. Additional files were present. No failure was met.
    5 	Some files were copied. Some files were mismatched. No failure was met.
    6 	Additional files and mismatched files exist. No files were copied and no failures were met. Which means that the files already exist in the destination directory.
    7 	Files were copied, a file mismatch was present, and additional files were present.
    8 	Several files didn't copy.
     #>
    #endregion comment
    # Checking the exit code and log file
    if ($LASTEXITCODE -le 3)
    {
        Write-Host '- No errors detected, deleting log file' -ForegroundColor Green
        Remove-Item $LogFile
        Write-Host '- Synchronization completed successfully.' -ForegroundColor Green
    }
    else
    {
        Write-Host '- One or more errors detected, log file displayed' -ForegroundColor Cyan
        Write-Host '- Synchronization encountered errors. Please check the log file : ', "[$LogFile]" -ForegroundColor cyan
    }
}

<#
example of use
Write-Host 'Sync Useful-InPowershell ==> External Media' -ForegroundColor  Magenta
Sync-FolderUsingRobocopy -Source 'D:\Useful-InPowershell' -Destination 'E:\Useful-InPowershell'

Write-Host 'Sync Recover to Sort ==> External Media' -ForegroundColor Magenta
Sync-FolderUsingRobocopy -Source 'D:\Recup A trier' -Destination 'E:\RECUP A TRIER'
...
#>