(Swift 3/4) SFTP Delete Directory

Demonstrates how to delete a directory on the remote SFTP server. The directory should be empty prior to deleting.

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

    let sftp = CkoSFtp()!

    // Set some timeouts, in milliseconds:
    sftp.connectTimeoutMs = 5000
    sftp.idleTimeoutMs = 10000

    // Connect to the SSH server.  
    // The standard SSH port = 22
    // The hostname may be a hostname or IP address.
    var hostname: String? = "sftp.example.com"
    var port: Int = 22
    var success: Bool = sftp.connect(hostname, port: port)
    if success != true {
        print("\(sftp.lastErrorText!)")
        return
    }

    // Authenticate with the SSH server.  Chilkat SFTP supports
    // both password-based authenication as well as public-key
    // authentication.  This example uses password authenication.
    success = sftp.authenticatePw("myLogin", password: "myPassword")
    if success != true {
        print("\(sftp.lastErrorText!)")
        return
    }

    // After authenticating, the SFTP subsystem must be initialized:
    success = sftp.initializeSftp()
    if success != true {
        print("\(sftp.lastErrorText!)")
        return
    }

    // Delete a directory on the server.
    // The directory should be empty prior to deleting.
    success = sftp.removeDir("abc123")
    if success != true {
        print("\(sftp.lastErrorText!)")
        return
    }

    print("Directory Deleted!")

}