(PowerShell) Controlling paths within a Zip

How to control the paths stored within 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

# This is the directory structure on the local filesystem
# from which we'll create .zip archives:
# The root directory is /temp/filesToZip
# 
# We have these files:
# /temp/filesToZip/faxCover.doc
# /temp/filesToZip/exe/Setup.exe
# /temp/filesToZip/images/cheese.jpg
# /temp/filesToZip/images/dude.gif
# /temp/filesToZip/images/img3.gif
# /temp/filesToZip/images/img4.gif
# /temp/filesToZip/images/img5.gif
# /temp/filesToZip/images/scream.jpg
# /temp/filesToZip/images/imageInfo/scream.xml
# /temp/filesToZip/images/imageInfo/cheese.xml
# /temp/filesToZip/text/html/bonaireFishing.html
# /temp/filesToZip/text/html/upload.html
# /temp/filesToZip/text/txt/hello.txt
# /temp/filesToZip/text/txt/HelloWorld123.txt
# /temp/filesToZip/text/xml/hamlet.xml
# /temp/filesToZip/text/xml/pigs.xml

# There are three properties to help control the paths stored
# within a .zip:
# AppendFromDir
# PathPrefix
# DiscardPaths
# 

# First we'll demonstrate AppendFromDir
# When a directory tree is appended via AppendFiles or
# AppendFilesEx, the AppendFromDir sets the base of the 
# directory tree appended (if the file pattern contains a 
# relative path, or no path at all).

# Clear the zip object.
$zip.NewZip("test1.zip")

$recurse = $true

$zip.AppendFromDir = "/temp/filesToZip"
$success = $zip.AppendFiles("*.xml",$recurse)

# The zip will contain:
# images/imageInfo/scream.xml
# images/imageInfo/cheese.xml
# text/xml/hamlet.xml
# text/xml/pigs.xml

$success = $zip.WriteZipAndClose()
if ($success -ne $true) {
    $($zip.LastErrorText)
    exit
}

# Clear the zip object.
$success = $zip.NewZip("test2.zip")

$zip.AppendFromDir = "/temp/filesToZip/images"
$success = $zip.AppendFiles("*.xml",$recurse)
$zip.AppendFromDir = "/temp/filesToZip/text"
$success = $zip.AppendFiles("*.xml",$recurse)

# The zip will contain:
# imageInfo/scream.xml
# imageInfo/cheese.xml
# xml/hamlet.xml
# xml/pigs.xml

$success = $zip.WriteZipAndClose()
if ($success -ne $true) {
    $($zip.LastErrorText)
    exit
}

# The PathPrefix property adds an arbitrary path prefix to each
# file in the .zip.
# For example:

# Clear the zip object.
$success = $zip.NewZip("test3.zip")

$zip.PathPrefix = "chilkat/"

$zip.AppendFromDir = "/temp/filesToZip/images"
$success = $zip.AppendFiles("*.xml",$recurse)
$zip.AppendFromDir = "/temp/filesToZip/text"
$success = $zip.AppendFiles("*.xml",$recurse)

# The zip will contain:
# chilkat/imageInfo/scream.xml
# chilkat/imageInfo/cheese.xml
# chilkat/xml/hamlet.xml
# chilkat/xml/pigs.xml

$success = $zip.WriteZipAndClose()
if ($success -ne $true) {
    $($zip.LastErrorText)
    exit
}

# The DiscardPaths property removes the path from each file
# in the zip:
# For example:

# Clear the zip object.
$success = $zip.NewZip("test4.zip")

$zip.PathPrefix = ""
$zip.DiscardPaths = $true

$zip.AppendFromDir = "/temp/filesToZip/"
$success = $zip.AppendFiles("*",$recurse)

# The zip will contain:
# faxCover.doc
# Setup.exe
# cheese.jpg
# dude.gif
# img3.gif
# img4.gif
# img5.gif
# scream.jpg
# scream.xml
# cheese.xml
# bonaireFishing.html
# upload.html
# hello.txt
# HelloWorld123.txt
# hamlet.xml
# pigs.xml

$success = $zip.WriteZipAndClose()
if ($success -ne $true) {
    $($zip.LastErrorText)
    exit
}

# You can combine PathPrefix with DiscardPaths:

# Clear the zip object.
$success = $zip.NewZip("test5.zip")

$zip.PathPrefix = "chilkat/"
$zip.DiscardPaths = $true

$zip.AppendFromDir = "/temp/filesToZip/"
$success = $zip.AppendFiles("*",$recurse)

# The zip will contain:
# chilkat/faxCover.doc
# chilkat/Setup.exe
# chilkat/cheese.jpg
# chilkat/dude.gif
# chilkat/img3.gif
# chilkat/img4.gif
# chilkat/img5.gif
# chilkat/scream.jpg
# chilkat/scream.xml
# chilkat/cheese.xml
# chilkat/bonaireFishing.html
# chilkat/upload.html
# chilkat/hello.txt
# chilkat/HelloWorld123.txt
# chilkat/hamlet.xml
# chilkat/pigs.xml

$success = $zip.WriteZipAndClose()
if ($success -ne $true) {
    $($zip.LastErrorText)
    exit
}

# One last example -- combine DiscardPaths with PathPrefix
# with multiple calls to AppendFiles:

# Clear the zip object.
$success = $zip.NewZip("test6.zip")

$zip.DiscardPaths = $true
$zip.AppendFromDir = "/temp/filesToZip/"

# Get all .gif files:
$zip.PathPrefix = "gif/"
$success = $zip.AppendFiles("*.gif",$recurse)

# Get all .jpg files:
$zip.PathPrefix = "jpg/"
$success = $zip.AppendFiles("*.jpg",$recurse)

# Get all .xml files:
$zip.PathPrefix = "xml/"
$success = $zip.AppendFiles("*.xml",$recurse)

# The zip will contain:
# jpg/cheese.jpg
# gif/dude.gif
# gif/img3.gif
# gif/img4.gif
# gif/img5.gif
# jpg/scream.jpg
# xml/scream.xml
# xml/cheese.xml
# xml/hamlet.xml
# xml/pigs.xml

$success = $zip.WriteZipAndClose()
if ($success -ne $true) {
    $($zip.LastErrorText)
    exit
}