Ruby

Control ASCII Download Line Endings (CrlfMode)

Demonstrates the CrlfMode property, which controls line-ending conversion when downloading in ASCII transfer mode: 0 leaves them as received, 1 converts to CRLF, 2 to LF, and 3 to CR.

Background: When you deliberately download text in ASCII mode, CrlfMode lets you force the saved file's line endings to a specific convention — CRLF for Windows tools, LF for Unix — regardless of what the server sends. It applies only in ASCII mode, so pair it with SetTypeAscii; in the recommended default binary mode, bytes are preserved verbatim and this setting has no effect. Reserve ASCII mode (and this property) for the rare case where line-ending normalization of text is actually wanted.

Chilkat Ruby Downloads

Download Chilkat for Ruby

Ruby

require 'chilkat'

success = false

ftp = Chilkat::CkFtp2.new()

ftp.put_Hostname("ftp.example.com")
ftp.put_Username("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.put_Password("myPassword")

success = ftp.Connect()
if (success == false)
    print ftp.lastErrorText() + "\n";
    exit
end

#  CrlfMode controls line-ending conversion for ASCII-mode downloads:
#    0 = leave line endings as received (default)
#    1 = convert to CRLF
#    2 = convert to LF
#    3 = convert to CR
#  Convert a downloaded text file's line endings to CRLF (useful when saving for Windows).
ftp.put_CrlfMode(1)

#  CrlfMode applies only in ASCII transfer mode.
success = ftp.SetTypeAscii()
if (success == false)
    print ftp.lastErrorText() + "\n";
    exit
end

success = ftp.GetFile("public_html/readme.txt","qa_output/readme.txt")
if (success == false)
    print ftp.lastErrorText() + "\n";
    exit
end

print "Downloaded with CRLF line endings." + "\n";

success = ftp.Disconnect()
if (success == false)
    print ftp.lastErrorText() + "\n";
    exit
end