B4X Requires Chilkat v11.0.0+

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. B4X

Dim success As Boolean = False

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

Dim zip As ChilkatZip
zip.Initialize("zip")

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

'  When an absolute filepath is passed to AddFile, 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 = False
success = zip.AddFile("c:/ck2000/appData/UnitTest/qa_data/hamlet.xml", saveExtraPath)
If success = False Then
    Log(zip.LastErrorText)
    Return
End If


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


'  Examine the entries
Dim entry As ChilkatZipEntry
entry.Initialize("entry")
Dim numEntries As Int = zip.NumEntries
Dim i As Int = 0
Do While i < numEntries
    zip.EntryAt(i, entry)
    Log(i & ": " & entry.FileName)
    i = i + 1
Loop

'  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.
success = zip.EntryOf("hamlet.xml", entry)
If success = False Then
    Log("entry not found")
    Return
End If


entry.FileName = "Shakespeare/Claudius1.xml"

success = zip.EntryOf("qa_data/hamlet.xml", entry)
If success = False Then
    Log("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
    Log(zip.LastErrorText)
Else
    Log("Zip created!")
End If


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