(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.

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$zip = New-Object Chilkat.Zip

# Intialize the zip object by calling NewZip.
$success = $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"
#  The saveExtraPath argument, if set, will cause the path information
#  passed in the 1st argument to be saved in the .zip.     But the path in AppendFromDir is
#  not added to that path saved in the .zip.     If there is a path in AppendFromDir then the
#  path in the 1st argument must be relative, not preceded by a drive or \.
$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()