(Xojo Plugin) Replace/Update a FIle in a .zip

Demonstrates how to replace/update a file from a .zip. Note: This requires the entire .zip to be rewritten.

Chilkat Xojo Plugin Download Xojo Plugin for Windows, Linux, Mac OS X, and ARM, ARM64

// This requires the Chilkat Zip API to have been previously unlocked.
// See Unlock Chilkat Zip for sample code.

// First prepare a .zip and write it..
Dim zip As New Chilkat.Zip

Dim success As Boolean
success = zip.NewZip("qa_output/abc.zip")

// Add some files..
Dim entry As Chilkat.ZipEntry
entry = zip.AppendString("a.txt","aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa")

entry = zip.AppendString("b.txt","bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb")

entry = zip.AppendString("c.txt","cccccccccccccccccccccccccccccccccccc")

// Write to qa_output/abc.zip
// This .zip contains three files: a.txt, b.txt, and c.txt
success = zip.WriteZipAndClose()

// -------------------------------------------------------------------
// Open abc.zip, replace the content of the "b.txt" entry with something else, and re-write.
Dim zip2 As New Chilkat.Zip
success = zip2.OpenZip("qa_output/abc.zip")

entry = zip2.GetEntryByName("b.txt")
success = entry.ReplaceString("This is the new content.  bbbbbbbbbbbbbbbbbbbbbb","utf-8")

// Write the modified .zip back to "abc.zip"
success = zip2.WriteZipAndClose()

System.DebugLog("success.")