get_pgdb_config.rb

#!/bin/env ruby
# -*- coding: utf-8; mode: ruby; -*-
require "yaml"

if ARGV.size == 1
  config = {}
  database_url = ARGV.shift
  params = database_url.split("/")
  username = params[3]
  host = params[2].split("@")[1]
  database = username
  password = params[2].split("@")[0].split(":")[1]
  config["production"] = {
    "encoding" => "unicode",
    "adapter" => "postgresql",
    "username" => username,
    "port" => 5432,
    "host" => host,
    "database" => database,
    "password" => password
  }
  puts config.to_yaml
else
  puts "[USAGE] #{__FILE__} SHARED_DATABASE_URL"
end