whatthecommit

#!/usr/bin/env ruby

class WhatTheCommit
  VERSION = "0.9.3"
  CMD = File.basename($0)
  URL = "http://whatthecommit.com/"
  DISCLAIMER = " (courtesy of #{URL})"

  def usage(exit_code = 0)
    puts "Usage: #{CMD} [-n, -o]"
    puts
    puts "Scrapes random commit messages from #{URL}, "
    puts "useful for the daily: git commit -am \"$(#{CMD})\""
    puts
    puts "Options:"
    puts "  -n, --no-disclaimer   do not append disclaimer"
    puts "  -o, --open            open #{URL} in your browser (MacOS X only)"
    puts
    puts "  -v, --version         show version information and exit"
    puts "  -h, --help            display this usage and exit"
    puts
    
    exit(exit_code)
  end
  
  def version
    puts "#{CMD} (#{VERSION}) - random commit message generator (#{URL})"
    exit 0
  end
  
  def error(msg)
    STDERR.puts "#{CMD}: [error] #{msg}"
    usage(1)
  end
  
  def launch_browser; exec "open '#{URL}'" end
  
  def print_random_message
    require 'open-uri'    
    puts open(URL).select { |e| e =~ /^<p>/ }.first.gsub(/^<p>/, "").gsub("\n", "")# + (@show_disclaimer ? DISCLAIMER : '')
  end
  
  def run(*args)
    @show_disclaimer = true

    case args.first
    when '--help', '-h'     then usage
    when '--version', '-v'  then version
    when '--open', '-o'     then launch_browser
    when '--no-disclaimer', '-n'
      @show_disclaimer = false
    else
      error("unknown option(s): #{args.first}") unless args.empty?
    end
    
    print_random_message
  end
end

WhatTheCommit.new.run(*ARGV)