PowerBuilder

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. PowerBuilder

integer li_rc
integer li_Success
oleobject loo_Zip
integer li_SaveExtraPath
oleobject loo_Entry
integer li_NumEntries
integer i

li_Success = 0

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

loo_Zip = create oleobject
li_rc = loo_Zip.ConnectToNewObject("Chilkat.Zip")
if li_rc < 0 then
    destroy loo_Zip
    MessageBox("Error","Connecting to COM object failed")
    return
end if

li_Success = loo_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 0,
// or (2) the full absolute path, but made relative, if saveExtraPath is 1.
// (For example, "c:/ck2000/appData/UnitTest/qa_data/hamlet.xml" made relative is 
// "ck2000/appData/UnitTest/qa_data/hamlet.xml")
li_SaveExtraPath = 0
li_Success = loo_Zip.AddFile("c:/ck2000/appData/UnitTest/qa_data/hamlet.xml",li_SaveExtraPath)
if li_Success = 0 then
    Write-Debug loo_Zip.LastErrorText
    destroy loo_Zip
    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".
li_Success = loo_Zip.AddFile("qa_data/hamlet.xml",li_SaveExtraPath)
if li_Success = 0 then
    Write-Debug loo_Zip.LastErrorText
    destroy loo_Zip
    return
end if

// Examine the entries
loo_Entry = create oleobject
li_rc = loo_Entry.ConnectToNewObject("Chilkat.ZipEntry")

li_NumEntries = loo_Zip.NumEntries
i = 0
do while i < li_NumEntries
    loo_Zip.EntryAt(i,loo_Entry)
    Write-Debug string(i) + ": " + loo_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"
li_Success = loo_Zip.WriteZip()

// Now change the entry filepaths to whatever is desired.
li_Success = loo_Zip.EntryOf("hamlet.xml",loo_Entry)
if li_Success = 0 then
    Write-Debug "entry not found"
    destroy loo_Zip
    destroy loo_Entry
    return
end if

loo_Entry.FileName = "Shakespeare/Claudius1.xml"

li_Success = loo_Zip.EntryOf("qa_data/hamlet.xml",loo_Entry)
if li_Success = 0 then
    Write-Debug "entry not found"
    destroy loo_Zip
    destroy loo_Entry
    return
end if

loo_Entry.FileName = "Shakespeare/Claudius2.xml"

// Change the name of the .zip to be written and write again:
loo_Zip.FileName = "qa_output/zipB.zip"
li_Success = loo_Zip.WriteZipAndClose()
if li_Success <> 1 then
    Write-Debug loo_Zip.LastErrorText
else
    Write-Debug "Zip created!"
end if

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


destroy loo_Zip
destroy loo_Entry