ror-vagrantize.rb

#!/usr/bin/ruby
# encoding: utf-8

require 'active_support/core_ext/hash'
require 'securerandom'
require 'yaml'

port ||= ENV['APP_PORT'] || '8080'
envs = %w(production development test)

secret = Hash[
  envs.map do |env|
    [env, SecureRandom.hex(64)]
  end
]

[
  {
    target: 'config/database.yml',
    patch: Hash[
      envs.map do |env|
        [
          env, {
            'adapter' => 'mysql2',
            'socket' => '/var/run/mysqld/mysqld.sock',
            'encoding' => 'utf8',
            'database' => env,
            'username' => env,
            'password' => env,
          }
        ]
      end
    ]
  },
  {
    target: 'config/secrets.yml',
    patch: Hash[
      envs.map do |env|
        [
          env, {
            'secret_key_base' => secret[env],
          }
        ]
      end
    ]
  },
  {
    target: 'config/config.yml',
    patch: Hash[
      envs.map do |env|
        [
          env, {
            'url' => "http://localhost:#{port}",
            'ip' => '0.0.0.0',
            'session_store' => {
              'servers' => %w(redis:///tmp/redis.sock)
            },
            'secret_key_base' => secret[env],
          }
        ]
      end
    ]
  },
].each do |hunk|
  variants = %w(sample example).map do |ext|
    hunk[:target] + '.' + ext
  end
  src = variants.find do |f|
    File.exists? f
  end
  if src
    yaml = YAML.load_file(src).deep_merge! hunk[:patch]
    File.open(hunk[:target], 'w') do |f|
      f.write(yaml.to_yaml.sub("---\n", ''))
    end
  end
end