VBScript

Replace/Update a FIle in a .zip

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

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

success = 0

' 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..
set zip = CreateObject("Chilkat.Zip")

success = zip.NewZip("qa_output/abc.zip")

' Add some files..
charset = "utf-8"
success = zip.AddString("a.txt","aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",charset)
success = zip.AddString("b.txt","bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb",charset)
success = zip.AddString("c.txt","cccccccccccccccccccccccccccccccccccc",charset)

' 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.
set zip2 = CreateObject("Chilkat.Zip")
success = zip2.OpenZip("qa_output/abc.zip")

set entry = CreateObject("Chilkat.ZipEntry")
If (zip2.EntryOf("b.txt",entry) = 1) Then
    success = entry.ReplaceString("This is the new content.  bbbbbbbbbbbbbbbbbbbbbb","utf-8")
End If

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

outFile.WriteLine("success.")

outFile.Close