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.

Download Chilkat Ruby Library

require 'chilkat'

ftp = Chilkat::CkFtp2.new()

#  Any string unlocks the component for the 1st 30-days.
success = ftp.UnlockComponent("Anything for 30-day trial")
if (success != true)
    print ftp.lastErrorText() + "\n"
    exit
end

#  Note: This is a valid FTP account that you may use for testing.
ftp.put_Hostname("ftp.secureftp-test.com")
ftp.put_Username("test")
ftp.put_Password("test")

ftp.put_KeepSessionLog(true)

#  Connect and login to the FTP server.
success = ftp.Connect()
if (success != true)
    print ftp.lastErrorText() + "\n"
    exit
end

#  Set the current remote directory to the root of
#  the tree to be downloaded.
success = ftp.ChangeRemoteDir("/subDir1")
if (success != true)
    print ftp.lastErrorText() + "\n"
    exit
end

#  Recursively download all non-existant and newer files.
mode = 2
success = ftp.SyncLocalTree("c:/temp/subDir1",mode)
if (success != true)
    print ftp.lastErrorText() + "\n"
    exit
end

ftp.Disconnect()

#  Display the session log.
print ftp.sessionLog() + "\n";