Swift

Unzip Files in a Date Range

See more Zip Examples

Demonstrates how to use the Zip.MinDate and Zip.MaxDate properties to unzip only those files with a last-modified date within a date range.

Note: This example requires Chilkat v10.0.0 or greater.

Swift

func chilkatTest() {
    var success: Bool = false

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    let zip = CkoZip()!

    success = zip.open(zipPath: "qa_data/zips/sample.zip")
    if success != true {
        print("\(zip.lastErrorText!)")
        return
    }

    // The MinDate and MaxDate properties use the timestamp date/time string format.
    // Here are some examples:
    // YYYY-MM-DD (e.g., 2024-07-31)
    // YYYY-MM-DDTHH:MM:SS�HH:MM (e.g., 2024-07-31T12:34:56+02:00)
    // 2024-07-31T12:34:56Z (the "Z" denotes Zulu time, or UTC)

    // Only unzip files having a last-modified date greater than 1-Jan-2017
    zip.minDate = "2017-01-01T00:00:00Z"

    // Also, only unzip files having a last-modified date less than the end of 2020
    zip.maxDate = "2020-12-31T23:59:59Z"

    // You don't need to specify both MinDate and MaxDate.
    // You can specify only one or the other if needed.

    // The MinDate/MaxDate properties apply to all of the Chilkat methods for unzipping.

    var numUnzipped: Int = zip.unzip(dirPath: "c:/temp/unzipDir").intValue
    if numUnzipped < 0 {
        print("\(zip.lastErrorText!)")
        return
    }

    zip.close()

}