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test/Close-FileHandles_and_Copy-FilesAndFolders.ps1

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+function Close-FileHandles
+{
+    param(
+     [parameter(mandatory=$True, HelpMessage='Full or partial file path')]
+     [string]$FilePath
+    )
+   
+    Write-Host "Searching for locks on path: $FilePath"
+
+    gps | Where-Object { $_.Path -match $FilePath.Replace("\", "\\") } |% `
+    {
+        Write-Host "Closing process $_.Name with path: $_.Path"
+        Stop-Process -Id $_.Id -Force
+    }
+}
+
+function Copy-FilesAndFolders
+{
+    param(
+     [parameter(mandatory=$True, HelpMessage='Source directory from which to copy')]
+     [string]$SourceDir,
+ 
+     [parameter(mandatory=$True, HelpMessage='Destination directory to which to copy')]
+     [string]$DestinationDir,
+ 
+     [parameter(mandatory=$True, HelpMessage='Clean destination directory before copying')]
+     [bool]$CleanDestinationDir=$False,
+ 
+     [parameter(mandatory=$False, HelpMessage='Timeout')]
+     [int]$Timeout=20
+     )
+ 
+     # Ensure script fails on any errors
+     $ErrorActionPreference = "Stop"
+ 
+     if ($CleanDestinationDir -eq $True)
+     {
+        # First, try to remove the folder without explicitly dropping any locks; leave a
+
+reasonable
+        # time for services to stop and threads to end
+        for ($j = 0; $j -le 2; $j ++)
+        {
+            Write-Host "Attempting to delete $DestinationDir, since CleanDestinationDir was specified"
+
+            for ($i = 1; $i -le $Timeout -and (Test-Path -Path $DestinationDir -ErrorAction SilentlyContinue); $i ++)
+            {
+                Write-Host "Attempting to remove folder $DestinationDir ($i of $Timeout)"
+                Remove-Item -Path $DestinationDir -Recurse -Force -ErrorAction SilentlyContinue
+                Start-Sleep -Milliseconds 1000
+            }
+ 
+            if (Test-Path -Path $DestinationDir -ErrorAction SilentlyContinue)
+            {
+                if ($j -eq 0)
+                {
+                    Write-Host "Folder is still locked; dropping locks and retrying"
+                    Close-FileHandles -FilePath $DestinationDir
+                }
+                else
+                {
+                    throw "Unable to clean $DestinationDir; aborting"
+                }
+            }
+        }
+     }
+ 
+     Write-Host "Checking whether $DestinationDir directory exists"
+ 
+    if (!(Test-Path $DestinationDir -ErrorAction SilentlyContinue))
+    {
+        # Create the destination folder
+        Write-Host "$DestinationDir does not exist; creating"
+        New-Item -ItemType directory -Path $DestinationDir
+    }
+ 
+     # Copy the folder
+     Write-Host "Copying $SourceDir to $DestinationDir"
+     Get-ChildItem -Path $SourceDir |% `
+     {
+        try
+        {
+            Write-Host "Copying: $_"
+            Copy-Item $_.fullname "$DestinationDir" -Recurse -Force
+        }
+        catch
+        {
+            Write-Host "Destination file appears to be locked; attempting to drop locks on
+
+folder"
+            Close-FileHandles -FilePath $DestinationDir
+        }
+     }
+}