-- A function to quote words, ie "one two" becomes "'one' 'two'"                
function quote_words(words) 
  return string.gsub(words, "([^ ]+)", "'%1'")                                  
end                                                                             


-- This is a simple funciton which assumes you're going to be spawning          
-- a copy of mtn, so reuses a common bit at the end for converting
-- local args into remote args. You might need to massage the logic a           
-- bit if this doesn't fit your assumptions.                                    

function get_netsync_connect_command(uri, args)                                 
  
  local argv = nil
  local quote_patterns = false                                                  
  
  if uri["scheme"] == "ssh"                                                     
    and uri["host"] 
    and uri["path"] then                                                        
    
    argv = { "ssh" }
    if uri["user"] then
      table.insert(argv, "-l")
      table.insert(argv, uri["user"])                                           
    end
    if uri["port"] then
      table.insert(argv, "-p")
      table.insert(argv, uri["port"])                                           
    end                                                                         
    
    table.insert(argv, uri["host"])                                             
    quote_patterns = true                                                       
  end                                                                           
  
  if uri["scheme"] == "file" and uri["path"] then                               
    argv = { }                                                                  
  end                                                                           
  
  if argv then                                                                  
    
    table.insert(argv, "mtn")                                                   
    
    if args["debug"] then
      table.insert(argv, "--debug")                                             
    else
      table.insert(argv, "--quiet")                                             
    end                                                                         


    table.insert(argv, "--db")
    table.insert(argv, uri["path"])
    table.insert(argv, "serve")
    table.insert(argv, "--stdio")
    table.insert(argv, "--no-transport-auth")

    if args["include"] then
      if quote_patterns then
        table.insert(argv, quote_words(args["include"]))
      else
        table.insert(argv, args["include"])
      end
    end

    if args["exclude"] then
      table.insert(argv, "--exclude")
      if quote_patterns then
        table.insert(argv, quote_words(args["exclude"]))
      else
        table.insert(argv, args["exclude"])
      end
    end
  end
  return argv
end