(Swift 3,4,5...) SCP Download Files Matching a Pattern, such as *.txt

Demonstrates how to SCP download files matching a pattern, such as *.txt.

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 ssh = CkoSsh()!

    // Connect to an SSH server:
    var hostname: String? = "MY-SSH-SERVER-DOMAIN-OR-IP"
    var port: Int = 22

    var success: Bool = ssh.connect(hostname, port: port)
    if success != true {
        print("\(ssh.lastErrorText!)")
        return
    }

    // Wait a max of 5 seconds when reading responses..
    ssh.idleTimeoutMs = 5000

    // Authenticate using login/password:
    success = ssh.authenticatePw("MY-SSH-LOGIN", password: "MY-SSH-PASSWORD")
    if success != true {
        print("\(ssh.lastErrorText!)")
        return
    }

    // Once the SSH object is connected and authenticated, use it
    // in the SCP object.
    let scp = CkoScp()!

    success = scp.use(ssh)
    if success != true {
        print("\(scp.lastErrorText!)")
        return
    }

    scp.heartbeatMs = 200

    // Set the SyncMustMatch property to "*.pem" to download only .pem files
    scp.syncMustMatch = "*.pem"

    var remoteDir: String? = "qa_syncA"
    var localDir: String? = "c:/aaworkarea/scp/qa_syncA"

    // Download synchronization modes:
    // mode=0: Download all files
    // mode=1: Download all files that do not exist on the local filesystem.
    // mode=2: Download newer or non-existant files.
    // mode=3: Download only newer files.  
    //         If a file does not already exist on the local filesystem, it is not downloaded from the server.
    // mode=5: Download only missing files or files with size differences.
    // mode=6: Same as mode 5, but also download newer files.
    var mode: Int = 0

    // Do not recurse the remote directory tree.  Only download files matching *.pem
    // from the given remote directory.
    var bRecurse: Bool = false

    success = scp.syncTreeDownload(remoteDir, localRoot: localDir, mode: mode, bRecurse: bRecurse)
    if success != true {
        print("\(scp.lastErrorText!)")
        return
    }

    print("SCP download matching success.")

    // Disconnect
    ssh.disconnect()

}