alias

alias.rb

#!/usr/bin/env ruby
COLORS =
  { :red => 31, :green => 32, :yellow => 33, :blue => 34, :magenta => 35, :cyan => 36, :white => 27, :default => 39 }

@@command_list = {}

def with_color(state = :default)
  puts "\e[#{COLORS[state]}m#{yield}\e[0m"
end

def define(name, &block)
  @@command_list[name] = lambda(&block)
end

begin
  load "~/.rubyaliaserc"
  with_color(:cyan) { "load rubyaliaserc" }
rescue LoadError
  nil
end

#
#  Example
#
#  define("github") do |user_name, repository|
#    "git clone https://github.com/#{user_name}/#{repository}.git"
#  end
#

args = ARGV
command = args.shift

required_args = @@command_list[command].parameters

unless required_args == args.size
  with_color(:red){ "wrong number of arguments (#{args.size} for #{required_args.size}) (ArgumentError)" }
  required_args.each do |arg|
    with_color { "argumets: " + arg[1].to_s }
  end
else
  system @@command_list[command].call(*args)
end