exe/caravan in caravan-0.6.2 vs exe/caravan in caravan-0.7.0

@@ -8,10 +8,14 @@
 options = {}
 option_parser = OptionParser.new do |opts|
   opts.banner = "Caravan #{Caravan::VERSION}\nCopyright (c) David Zhang 2018\n"
   opts.separator ""
 
+  opts.on("-l YAML_NAME", "--load YAML_NAME", "YAML path") do |value|
+    options[:yaml] = value
+  end
+
   opts.on("-s SOURCE_PATH", "--source SOURCE_PATH", "Source path") do |value|
     options[:src] = value
   end
 
   opts.on("-d DEST_PATH", "--dest DEST_PATH", "Destination path") do |value|
@@ -28,16 +32,14 @@
     else
       options[:ignore] = [value]
     end
   end
 
-  options[:once] = false
   opts.on("-o", "--once", "Deploy for once") do
     options[:once] = true
   end
 
-  options[:debug] = false
   opts.on("-b", "--debug", "Debug mode") do
     options[:debug] = true
   end
 
   opts.on_head("--init", "Init caravan.yml") do
@@ -54,10 +56,14 @@
 
 if ARGV.length == 0
   merged_conf = Caravan::Config.merge({}, Caravan.process_conf("."))
 else
   option_parser.parse!(ARGV)
-  merged_conf = Caravan::Config.merge(options, Caravan.process_conf(options[:src]))
+  if options.key?(:yaml)
+    merged_conf = Caravan::Config.merge(options, Caravan.process_conf(options[:src], options[:yaml]))
+  else
+    merged_conf = Caravan::Config.merge(options, Caravan.process_conf(options[:src]))
+  end
 end
 
 if merged_conf.key?("src") && merged_conf.key?("dst") && merged_conf.key?("deploy_mode")
   Caravan.start(merged_conf)
 else