bin/replication_status in reptile-0.0.1 vs bin/replication_status in reptile-0.0.4

@@ -1,7 +1,8 @@
 #!/usr/bin/env ruby
 
+require 'rubygems'
 require 'optparse'
 require 'reptile'
 
 commands = []
 
@@ -34,32 +35,54 @@
   end
   
   opts.on("-g", "--start_slaves", "Starts all slaves") do
     commands << 'start_slaves'
   end
+  
+  opts.on("-e", "--errors", "Show only errors.") do
+    commands << 'errors'
+  end
 
   begin
     opts.parse!(ARGV)
   rescue OptionParser::ParseError => e
     warn e.message
     puts opts
     exit 1
   end
 end
 
-config_file = 'replication.yml'
+if !ARGV.empty? && ARGV.length > 1
+  abort "Too many arguments; please specify only the directory containing the 'reptile.yml' file, or a yml config file itself."
+end
 
-if ARGV.empty? && !File.exists?(config_file)
-  abort "Please specify the directory containing the '#{config_file}' file, e.g. `#{File.basename($0)} ~/repl'"
-elsif !ARGV.empty? && !File.exists?(ARGV.first)
-  abort "`#{ARGV.first}' does not exist."
-elsif !ARGV.empty? && !File.directory?(ARGV.first)
-  abort "`#{ARGV.first}' is not a directory."
-elsif !ARGV.empty? && ARGV.length > 1
-  abort "Too many arguments; please specify only the directory to #{File.basename($0)}."
+config_file_name = "reptile.yml"
+config_file_locations = ["/etc/#{config_file_name}", "/etc/reptile/#{config_file_name}", "./#{config_file_name}"]
+config_location_param = ARGV.first
+
+config_file = nil
+if config_location_param
+  if File.directory?(config_location_param) && File.exist?(File.join(config_location_param, config_file_name))
+    config_file = File.join(config_location_param, config_file_name)
+  elsif File.exist?(config_location_param) && !File.directory?(config_location_param)
+    config_file = config_location_param
+  else
+    abort "Please specify the directory containing the '#{config_file_name}' file, or the config file itself." 
+  end
+else
+  config_file_locations.each do |f|
+    if File.exist?(f)
+      config_file = f
+      break
+    end
+  end
+  if config_file.nil?
+    abort "Couldn't find a config file at #{config_file_locations.join(', ')}"
+  end
 end
 
-Reptile::ReplicationMonitor.load_config_file(ARGV.first.nil? ? config_file : "#{ARGV.first}/#{config_file}")
+
+Reptile::ReplicationMonitor.load_config_file(config_file)
 
 if (commands.include?('start_slaves') || commands.include?('stop_slaves'))
   Reptile::Runner.send(commands[0]) 
 else
   (commands.empty? ? ['check_slaves', 'heartbeat', 'diff_tables'] : commands).each do |command|
\ No newline at end of file