(Swift 3,4,5...) Controlling Paths of Files Added to Zip

When appending files to a .zip, it can be difficult to get the paths exactly as you want them. This example describes a way that you can control the path information when adding a single file at a time to a .zip.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let zip = CkoZip()!

    // Intialize the zip object by calling NewZip.
    var success: Bool = zip.newZip("myZip.zip")

    // Add a reference to a file on disk to the zip object.
    // (When appending files to a zip, the files are not actually
    // read into memory.  References to the file(s) are added.
    // When WriteZip is called, the referenced files are streamed in
    // and compressed to the .zip.)
    var saveExtraPath: Bool = false
    success = zip.appendOneFileOrDir("/temp/a/hamlet.xml", saveExtraPath: saveExtraPath)
    // For brevity, this example will not check the return status...

    // The saveExtraPath argument, if set, will cause the path information
    // passed in the 1st argument to be saved in the .zip.

    // To add "a/hamlet.xml", do this:
    zip.appendFromDir = "/temp"
    //  The saveExtraPath argument, if set, will cause the path information
    //  passed in the 1st argument to be saved in the .zip.     But the path in AppendFromDir is
    //  not added to that path saved in the .zip.     If there is a path in AppendFromDir then the
    //  path in the 1st argument must be relative, not preceded by a drive or \.
    saveExtraPath = true
    success = zip.appendOneFileOrDir("a/hamlet.xml", saveExtraPath: saveExtraPath)

    // To add "temp/a/hamlet.xml", do this:
    zip.appendFromDir = "/"
    saveExtraPath = true
    success = zip.appendOneFileOrDir("temp/a/hamlet.xml", saveExtraPath: saveExtraPath)

    // The zip written here will contain hamlet.xml three times,
    // each with a different relative path.
    success = zip.writeAndClose()

}