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(Xojo Plugin) Set Entry Filepath (in output Zip) when Zipping

Demonstrates how to set the path for the file entry within the .zip to something different than the path in the filesystem.

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.

Dim zip As New Chilkat.Zip

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

// When an absolute filepath is passed to AppendOneFileOrDir, the path within the .zip
// will be one of two values:  (1) just the filename part if saveExtraPath is False,
// or (2) the full absolute path, but made relative, if saveExtraPath is True.
// (For example, "c:/ck2000/appData/UnitTest/qa_data/hamlet.xml" made relative is 
// "ck2000/appData/UnitTest/qa_data/hamlet.xml")
Dim saveExtraPath As Boolean
saveExtraPath = False
success = zip.AppendOneFileOrDir("c:/ck2000/appData/UnitTest/qa_data/hamlet.xml",saveExtraPath)
If (success <> True) Then
    System.DebugLog(zip.LastErrorText)
    Return
End If

// When a relative path is passed to AppendOneFileOrDir, then saveExtraPath does not apply.
// For example, assume our current working directory is "c:/ck2000/appData/UnitTest".  The following
// call to AppendOneFileOrDir creates an entry with the filepath "qa_data/hamlet.xml".
success = zip.AppendOneFileOrDir("qa_data/hamlet.xml",saveExtraPath)
If (success <> True) Then
    System.DebugLog(zip.LastErrorText)
    Return
End If

// Examine the entries
Dim numEntries As Int32
numEntries = zip.NumEntries
Dim i As Int32
i = 0
While i < numEntries
    Dim e As Chilkat.ZipEntry
    e = zip.GetEntryByIndex(i)
    System.DebugLog(Str(i) + ": " + e.FileName)

    i = i + 1
Wend

// The output so far is:

// 	0: hamlet.xml
// 	1: qa_data/hamlet.xml

// If we write the .zip as-is, then the zip will have two entries
// with the filepaths as shown above.

// This writes "qa_output/zipA.zip"
success = zip.WriteZip()

// Now change the entry filepaths to whatever is desired.
Dim entry As Chilkat.ZipEntry
entry = zip.GetEntryByName("hamlet.xml")
If (zip.LastMethodSuccess = False) Then
    System.DebugLog("entry not found")
    Return
End If

entry.FileName = "Shakespeare/Claudius1.xml"

entry = zip.GetEntryByName("qa_data/hamlet.xml")
If (zip.LastMethodSuccess = False) Then
    System.DebugLog("entry not found")
    Return
End If

entry.FileName = "Shakespeare/Claudius2.xml"

// Change the name of the .zip to be written and write again:
zip.FileName = "qa_output/zipB.zip"
success = zip.WriteZipAndClose()
If (success <> True) Then
    System.DebugLog(zip.LastErrorText)
Else
    System.DebugLog("Zip created!")
End If

// Examine both zipA.zip and zipB.zip using 7zip (or another tool) to see the differences.

 

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