DataFlex

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.

DataFlex

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoZip
    Boolean iRecurse
    String sTemp1

    Move False To iSuccess

    Get Create (RefClass(cComChilkatZip)) To hoZip
    If (Not(IsComObjectCreated(hoZip))) Begin
        Send CreateComObject of hoZip
    End

    // Create a new ZIP archive.
    Get ComNewZip Of hoZip "MyProject.zip" To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoZip To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Prepend "MyProject/" to all subsequently added ZIP entries.
    // 
    // This causes all files to extract beneath a top-level
    // directory named "MyProject".
    Set ComPathPrefix Of hoZip To "MyProject/"

    // Recursively add project files.
    // 
    // Because saveExtraPath = False, the stored ZIP paths
    // will normally begin with:
    // 
    //     src/
    //     docs/
    // 
    // But because PathPrefix = "MyProject/",
    // the final ZIP paths become:
    // 
    //     MyProject/src/
    //     MyProject/docs/
    // 
    Move True To iRecurse
    Get ComAppendFiles Of hoZip "c:/MyProject/*" iRecurse To iSuccess

    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoZip To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // Write the ZIP archive and close it.
    Get ComWriteZipAndClose Of hoZip To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoZip To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln "ZIP archive created successfully."


End_Procedure