find all specific folders and zip them - powershell

Question

I want to find all folders with name 'test' and to zip them into single folder with different names, of course.
I managed to do some code:
$RootFolder = "E:\"
$var = Get-ChildItem -Path $RootFolder -Recurse |
where {$_.PSIsContainer -and $_.Name -match 'test'}
#this is assembly for zip functionality
Add-Type -Assembly "System.IO.Compression.Filesystem"
foreach ($dir in $var) {
$destination = "E:\zip\test" + $dir.Name + ".zip"
if (Test-Path $destination) {Remove-Item $destination}
[IO.Compression.Zipfile]::CreateFromDirectory($dir.PSPath, $destination)
}
It gives me an error:
Exception calling "CreateFromDirectory" with "2" argument(s): "The given path's format is not supported."
I want to know, what is the right way to pass path of my $dir.

Answer 1

The PSPath property returned from Get-ChildItem is prefixed with the PSProvider. The CreateFromDirectory() method takes two strings; the first is sourceDirectoryName for which you could use Fullname from your object.
$RootFolder = "E:\"
$Directories = Get-ChildItem -Path $RootFolder -Recurse | Where-Object {
$_.PSIsContainer -And
$_.BaseName -Match 'test'
}
Add-Type -AssemblyName "System.IO.Compression.FileSystem"
foreach ($Directory in $Directories) {
$Destination = "E:\zip\test$($Directory.name).zip"
If (Test-path $Destination) {
Remove-Item $Destination
}
[IO.Compression.ZipFile]::CreateFromDirectory($Directory.Fullname, $Destination)
}

Answer 2

If you're using v5, I would suggest using the Commandlet
If you don't want to use the commandlet you can use this:
$FullName = "Path\FileName"
$Name = CompressedFileName
$ZipFile = "Path\ZipFileName"
$Zip = [System.IO.Compression.ZipFile]::Open($ZipFile,'Update')
[System.IO.Compression.ZipFileExtensions]::CreateEntryFromFile($Zip,$FullName,$Name,"optimal")
$Zip.Dispose()

Answer 3

If you have a folder structure like this:
- Folder1
-- Test
- Folder2
-- Test
- Folder3
-- Test
You can do this:
gci -Directory -Recurse -Filter 'test*' | % {
Compress-Archive "$($_.FullName)\**" "$($_.FullName -replace '\\|:', '.' ).zip"
}
And you will get:
D..Dropbox.Projects.StackOverflow-Posh.ZipFolders.Folder1.Test.zip
D..Dropbox.Projects.StackOverflow-Posh.ZipFolders.Folder2.Test.zip
D..Dropbox.Projects.StackOverflow-Posh.ZipFolders.Folder3.Test.zip
Or if you want to preserve the directory structure inside your zips:
gci -Directory -Recurse -Filter 'test*' | % {
Compress-Archive $_.FullName "$($_.FullName -replace '\\|:', '.' ).zip"
}