Check if an FTP Listing Entry is a Directory

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Demonstrates the Chilkat Ftp2.GetIsDirectory method, which returns whether a cached directory-listing entry is a directory. The only argument is a zero-based index. An invalid index returns false.

Background: Distinguishing directories from files is the first thing most listing code needs — to render a folder tree, to decide whether to recurse, or to apply different handling. This reads the type from the cached listing, so it is a local lookup rather than a server query. Reliability depends on the server's listing format conveying the type, which the common Unix and MLSD formats do.

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    success := false

    //  Demonstrates the Ftp2.GetIsDirectory method, which returns whether a cached directory-listing
    //  entry is a directory.  The only argument is a zero-based index into the current listing.

    ftp := chilkat.NewFtp2()

    ftp.SetHostname("ftp.example.com")
    ftp.SetUsername("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.SetPassword("myPassword")

    success = ftp.Connect()
    if success == false {
        fmt.Println(ftp.LastErrorText())
        ftp.DisposeFtp2()
        return
    }

    success = ftp.ChangeRemoteDir("public_html")
    if success == false {
        fmt.Println(ftp.LastErrorText())
        ftp.DisposeFtp2()
        return
    }

    //  GetDirCount retrieves the directory listing on the first call and returns the number of
    //  entries.  A negative return indicates failure.
    n := ftp.GetDirCount()
    if n < 0 {
        fmt.Println(ftp.LastErrorText())
        ftp.DisposeFtp2()
        return
    }

    var i int
    for i = 0; i <= n - 1; i++ {
        name := ftp.GetFilename(i)
        if ftp.GetIsDirectory(i) {
            fmt.Println("[DIR]  ", *name)
        } else {
            fmt.Println("       ", *name)
        }

    }

    success = ftp.Disconnect()
    if success == false {
        fmt.Println(ftp.LastErrorText())
        ftp.DisposeFtp2()
        return
    }


    ftp.DisposeFtp2()