make copy of folder tree without files - powershell

Question

I need to make copy of folder with subfolders, but do it without any files, except data that include folder "Project".
So I need to do new folders tree, but it should include only files that was present in subfolder named "Project".
ok, My solution:
$folder = dir D:\ -r
$folder
foreach ($f in $folder)
{
switch ($f.name)
{
"project"
{
Copy-Item -i *.* $f.FullName D:\test2
}
default
{
Copy-Item -exclude *.* $f.FullName D:\test2
}
}
}

Answer 1

Use xcopy /t to copy only the folder structure and then copy the Project folders separately. Something like this:
'test2\' | Out-File D:\exclude -Encoding ASCII
xcopy /t /exclude:d:\exclude D:\ D:\test2
gci -r -filter Project | ?{$_.PSIsContainer} | %{ copy -r $_.FullName d:\test2}
ri d:\exclude

Answer 2

Another solution:
$source = "c:\dev"
$destination = "c:\temp\copydev"
Get-ChildItem -Path $source -Recurse -Force |
Where-Object { $_.psIsContainer } |
ForEach-Object { $_.FullName -replace [regex]::Escape($source), $destination } |
ForEach-Object { $null = New-Item -ItemType Container -Path $_ -Force }
Get-ChildItem -Path $source -Recurse -Force |
Where-Object { -not $_.psIsContainer -and (Split-Path $_.PSParentPath -Leaf) -eq "Project"} |
Copy-Item -Force -Destination { $_.FullName -replace [regex]::Escape($source), $destination }

Answer 3

Use Get-ChildItem to recurse over folders and remap structure using New-Item. Within recursion, you can easily check for "Project".

Answer 4

First, create the directory structure:
xcopy D:\source D:\destination /t /e
Now, iterate through the source directory, copying every file in a Project directory:
Get-ChildItem D:\Source * -Recurse |
# filter out directories
Where-Object { -not $_.PsIsContainer } |
# grab files that are in Project directories
Where-Object { (Split-Path -Leaf (Split-Path -Parent $_.FullName)) -eq 'Project' } |
# copy the files from source to destination
Copy-Item -Destination ($_.FullName.Replace('D:\source', 'D:\destination'))