Helper script to open rails projects

.bash_profile

# ...

workon () {
  OLDIFS=$IFS
  IFS=$'\n'
  
  output=$(workon.rb $1)
  
  for line in $output; do
    echo $line
  done
  
  eval $line
  IFS=$OLDIFS
}

workon.rb

#!/usr/bin/env ruby

# Set to the root of your work directories
WORK_DIR = "/Users/mike/Work"
# Array of relevant sub directories ("languages")
WORK_DIRS = %w(build html php rails)

Dir.chdir WORK_DIR

@potentials = []
WORK_DIRS.each do |language|
  Dir.foreach(language) do |dir|
    path = File.join WORK_DIR, language, dir
    if dir == ARGV[0]
      next if ARGV[1] && ARGV[1] != language
      @potentials << { :language => language, :path => path }
    end
  end
end

def run(command, *arguments)
  callback = arguments.last.is_a?(Proc) ? arguments.pop : lambda {}
  puts "Running #{command}"
  Kernel.system "#{command}", *arguments
  
  callback.call
end

def commit(to)
  destination = to[:path]
  host = "#{ARGV[0]}.local"
  
  puts "# Using #{to[:path]}"
  
  run "open #{destination}"
  run "mate #{destination}"
  
  puts
  puts "# Ping to #{host}"
  run "ping -c 1 #{host} &> /dev/null", lambda { run "open http://#{host}" if $? == 0 }
  
  puts
  puts "# Next Step ..."
  puts "cd #{destination}"
end

def determine_language
  range = 2..@potentials.length
  
  case @potentials.length
    when range
      puts "Which language did you mean?"
      @potentials.each_index do |i|
        key = i == 0 ? "#{i.next}*:" : "#{i.next}:"
        puts "  #{key} #{@potentials[i][:language]}"
      end
      index = $stdin.gets.to_i
      commit @potentials[index == 0 ? 0 : index - 1]
    when 1
      commit @potentials.first
    else
      puts "you fool!"
  end
end

determine_language