Swift

Get a Remote FTP File's Size by Name as a String

Demonstrates the Chilkat Ftp2.GetSizeStrByName method, which returns the size in bytes of a named file in the current remote directory as a decimal string. The only argument is the filename.

Background: Returning the size as text avoids integer-width limits entirely, so this is the safe choice for a file of any size and for languages without a convenient large-integer type. Like the other by-name lookups it takes a bare filename in the current directory; parse the string when you need arithmetic, or use it directly for display.

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Swift


func chilkatTest() {
    var success: Bool = false

    //  Demonstrates the Ftp2.GetSizeStrByName method, which returns the size in bytes of a named file
    //  in the current remote directory as a decimal string.  The only argument is the filename.

    let ftp = CkoFtp2()!

    ftp.hostname = "ftp.example.com"
    ftp.username = "myFtpLogin"

    //  Normally you would not hard-code the password in source.  You should instead obtain it
    //  from an interactive prompt, environment variable, or a secrets vault.
    ftp.password = "myPassword"

    success = ftp.connect()
    if success == false {
        print("\(ftp.lastErrorText!)")
        return
    }

    success = ftp.changeRemoteDir(relativeDirPath: "public_html")
    if success == false {
        print("\(ftp.lastErrorText!)")
        return
    }

    //  The string form avoids integer-size limits, so it is safe for files of any size.
    var fileSize: String? = ftp.getSizeStr(byName: "bigfile.zip")
    if ftp.lastMethodSuccess == false {
        print("\(ftp.lastErrorText!)")
        return
    }

    print("bigfile.zip is \(fileSize!) bytes")

    success = ftp.disconnect()
    if success == false {
        print("\(ftp.lastErrorText!)")
        return
    }


}