Visual FoxPro

Add a Common Root Directory to ZIP Entries Using PathPrefix

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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.

Visual FoxPro

LOCAL lnSuccess
LOCAL loZip
LOCAL lnRecurse

lnSuccess = 0

loZip = CreateObject('Chilkat.Zip')

* Create a new ZIP archive.
lnSuccess = loZip.NewZip("MyProject.zip")
IF (lnSuccess = 0) THEN
    ? loZip.LastErrorText
    RELEASE loZip
    CANCEL
ENDIF

* Prepend "MyProject/" to all subsequently added ZIP entries.
* 
* This causes all files to extract beneath a top-level
* directory named "MyProject".
loZip.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/
* 
lnRecurse = 1
lnSuccess = loZip.AppendFiles("c:/MyProject/*",lnRecurse)

IF (lnSuccess = 0) THEN
    ? loZip.LastErrorText
    RELEASE loZip
    CANCEL
ENDIF

* Write the ZIP archive and close it.
lnSuccess = loZip.WriteZipAndClose()
IF (lnSuccess = 0) THEN
    ? loZip.LastErrorText
    RELEASE loZip
    CANCEL
ENDIF

? "ZIP archive created successfully."

RELEASE loZip