PowerBuilder

Add a Common Root Directory to ZIP Entries Using PathPrefix

See more Zip Examples

This example demonstrates how to use the PathPrefix property to prepend a common directory path to all entries added to a ZIP archive.

The PathPrefix value is prepended to the stored ZIP paths for subsequently added entries.

This is useful when:

• Creating ZIP archives that extract beneath a single root directory
• Packaging applications or projects into a named top-level folder
• Avoiding extraction directly into the current directory
• Organizing ZIP contents beneath a common parent directory

Suppose the local filesystem contains:

c:/MyProject/src/main.cpp
c:/MyProject/src/util.cpp
c:/MyProject/docs/readme.txt

And suppose the following code is executed:

zip.PathPrefix = "MyProject/";

Then the ZIP archive will contain:

MyProject/src/main.cpp
MyProject/src/util.cpp
MyProject/docs/readme.txt

Without a PathPrefix, the ZIP archive would instead contain:

src/main.cpp
src/util.cpp
docs/readme.txt

The PathPrefix is applied only to entries added after the property is set.

PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Zip
integer li_Recurse

li_Success = 0

loo_Zip = create oleobject
li_rc = loo_Zip.ConnectToNewObject("Chilkat.Zip")
if li_rc < 0 then
    destroy loo_Zip
    MessageBox("Error","Connecting to COM object failed")
    return
end if

// Create a new ZIP archive.
li_Success = loo_Zip.NewZip("MyProject.zip")
if li_Success = 0 then
    Write-Debug loo_Zip.LastErrorText
    destroy loo_Zip
    return
end if

// Prepend "MyProject/" to all subsequently added ZIP entries.
// 
// This causes all files to extract beneath a top-level
// directory named "MyProject".
loo_Zip.PathPrefix = "MyProject/"

// Recursively add project files.
// 
// Because saveExtraPath = 0, the stored ZIP paths
// will normally begin with:
// 
//     src/
//     docs/
// 
// But because PathPrefix = "MyProject/",
// the final ZIP paths become:
// 
//     MyProject/src/
//     MyProject/docs/
// 
li_Recurse = 1
li_Success = loo_Zip.AppendFiles("c:/MyProject/*",li_Recurse)

if li_Success = 0 then
    Write-Debug loo_Zip.LastErrorText
    destroy loo_Zip
    return
end if

// Write the ZIP archive and close it.
li_Success = loo_Zip.WriteZipAndClose()
if li_Success = 0 then
    Write-Debug loo_Zip.LastErrorText
    destroy loo_Zip
    return
end if

Write-Debug "ZIP archive created successfully."


destroy loo_Zip