(Go) Synchronize Local Directory Tree

Downloads files from the FTP server to a local directory tree. Synchronization modes include:

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.
mode=99: Do not download files, but instead delete remote files that do not exist locally.

Chilkat Go Downloads Go Package for Windows, MacOS, Linux, Alpine Linux, Solaris

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

    ftp := chilkat.NewFtp2()

    ftp.SetHostname("ftp.example.com")
    ftp.SetUsername("login")
    ftp.SetPassword("password")

    ftp.SetKeepSessionLog(true)

    // Connect and login to the FTP server.
    success := ftp.Connect()
    if success != true {
        fmt.Println(ftp.LastErrorText())
        ftp.DisposeFtp2()
        return
    }

    // Set the current remote directory to the root of
    // the tree to be downloaded.
    success = ftp.ChangeRemoteDir("/subDir1")
    if success != true {
        fmt.Println(ftp.LastErrorText())
        ftp.DisposeFtp2()
        return
    }

    // Recursively download all non-existant and newer files.
    mode := 2
    success = ftp.SyncLocalTree("c:/temp/subDir1",mode)
    if success != true {
        fmt.Println(ftp.LastErrorText())
        ftp.DisposeFtp2()
        return
    }

    success = ftp.Disconnect()

    // Display the session log.  
    fmt.Println(ftp.SessionLog())

    ftp.DisposeFtp2()