(PowerShell) Controlling Paths of Files Added to Zip

When appending files to a .zip, it can be difficult to get the paths exactly as you want them. This example describes a way that you can control the path information when adding a single file at a time to a .zip.

Download: Chilkat .NET Assemblies

[Reflection.Assembly]::LoadFile("C:\myAssemblies\ChilkatDotNet2.dll")

$zip = New-Object Chilkat.Zip

$success = $zip.UnlockComponent("anything for 30-day trial")
if ($success -ne $true) {
    $("Failed to unlock zip component")
    exit
}

#  Intialize the zip object by calling NewZip.
$zip.NewZip("myZip.zip")

#  Add a reference to a file on disk to the zip object.
#  (When appending files to a zip, the files are not actually
#  read into memory.  References to the file(s) are added.
#  When WriteZip is called, the referenced files are streamed in
#  and compressed to the .zip.)
$saveExtraPath = $false
$success = $zip.AppendOneFileOrDir("/temp/a/hamlet.xml",$saveExtraPath)
#  For brevity, this example will not check the return status...

#  The saveExtraPath argument, if set, will cause the path information
#  passed in the 1st argument to be saved in the .zip.

#  To add "a/hamlet.xml", do this:
$zip.AppendFromDir = "/temp"
$saveExtraPath = $true
$success = $zip.AppendOneFileOrDir("a/hamlet.xml",$saveExtraPath)

#  To add "temp/a/hamlet.xml", do this:
$zip.AppendFromDir = "/"
$saveExtraPath = $true
$success = $zip.AppendOneFileOrDir("temp/a/hamlet.xml",$saveExtraPath)

#  The zip written here will contain hamlet.xml three times,
#  each with a different relative path.
$success = $zip.WriteZipAndClose()