2015年春のrails new ref: http://qiita.com/akiyoshi83/items/0062d84942dc1f354947

.rubocop.yml

inherit_from: .rubocop_todo.yml

AllCops:
  Exclude:
    - db/schema.rb
    - tmp/**/*
    - .bundle/**/*
    - bin/*
    - config/initializers/*.rb

# ブロック前後の空行を許可
Style/EmptyLinesAroundBlockBody:
  Enabled: false

# 引数前のスペースは複数許可
Style/SingleSpaceBeforeFirstArg:
  Enabled: false

application.rb

    # Generator
    config.generators do |g|
      g.assets false
      g.helper false
      g.test_framework :rspec,
        view_specs: false,
        helper_specs: false,
        fixture: true
    end

development.rb

  ActiveRecord::Cause.log_with_sql = true 
  ActiveRecord::Cause.log_mode = :all 

file0.txt

rails _4.2.0_ new app_name --skip-bundle --skip-test-unit --database=mysql
# 短く書くと
rails _4.2.0_ new app_name -B -T -d mysql

file10.txt

cat <<EOF > config/initializers/rack_profiler.rb 
if Rails.env == 'development'
  require 'rack-mini-profiler'
  Rack::MiniProfilerRails.initialize!(Rails.application)
end
EOF

file12.txt

cat <<EOF > config/initializers/peek.rb
Peek.into Peek::Views::Rblineprof
EOF

file13.txt

*= require peek
*= require peek/views/rblineprof

file14.txt

//= require peek
//= require peek/views/rblineprof

file2.txt

bundle install --path .bundle

file3.txt

# rbenv使ってるので
echo "2.2.0" > .ruby-version
# rspecの初期化
bin/rails g rspec:install
echo "--format documentation" >> .rspec
# Guard+rspec
bin/bundle exec guard init rspec
# Guard+rubocop
bin/bundle exec guard init rubocop

# rubocopの初期ルールを生成するため先に除外するファイルを指定
cat <<EOF > .rubocop.yml
AllCops:
  Exclude:
    - db/schema.rb
    - tmp/**/*
    - .bundle/**/*
    - bin/*
    - config/initializers/*.rb
EOF

# railsが生成したファイルのコーディング規約エラーを除外
# .rubocop_todo.ymlが作成される
bin/bundle exec rubocop --auto-gen-config

file5.txt

# bin/rails c した時の表示を改善
cat <<EOF > .pryrc
require "awesome_print"
AwesomePrint.pry!

begin
  require 'hirb'
rescue LoadError
  # Missing goodies, bummer
end

if defined? Hirb
  # Slightly dirty hack to fully support in-session Hirb.disable/enable toggling
  Hirb::View.instance_eval do
    def enable_output_method
      @output_method = true
      @old_print = Pry.config.print
      Pry.config.print = proc do |*args|
        Hirb::View.view_or_page_output(args[1]) || @old_print.call(*args)
      end
    end

    def disable_output_method
      Pry.config.print = @old_print
      @output_method = nil
    end
  end

  Hirb.enable
end
EOF

# binにguardを追加
bin/bundle binstubs guard

# spring対応
bin/bundle exec spring binstub --all

Gemfile

# ここより上はデフォルトのままのことが多い

# slim
gem 'slim-rails'
# 環境ごとの定数管理
gem 'rails_config'
gem 'dotenv-rails'
# 認証
gem 'sorcery'
# 管理画面
gem 'rails_admin'
# 補足されない例外をメール送信
gem 'exception_notification'
# ページネーション
gem 'kaminari'
# パンくず
gem 'gretel'

group :development, :test do
  # この2つは最初から入ってる
  # beybugはpry-beybugがあるので外す
  gem 'web-console', '~> 2.0'
  gem 'spring'
  gem 'spring-commands-rspec'

  # console
  gem 'pry-byebug'
  gem 'pry-doc'
  gem 'pry-rails'
  gem 'pry-stack_explorer'
  gem 'awesome_print'
  gem 'hirb-unicode'

  # guard
  gem 'guard'
  gem 'guard-rspec'

  # lint
  gem 'guard-rubocop'
  # ログ出力整形
  gem 'quiet_assets'

  # パラメータ、SQL整形
  # gem 'rails-flog' # いらん気がしてきた

  # エラー画面拡張
  gem 'better_errors'
  gem 'binding_of_caller'
end

group :development do
  # クエリ発行箇所特定
  gem 'activerecord-cause'
  # N+1問題検出
  gem 'bullet'
  # 行毎のプロファイラ
  gem 'peek-rblineprof'
  # 簡易プロファイラ
  gem 'rack-mini-profiler', require: false
end

group :test do
  gem 'rspec-rails'
  gem 'factory_girl_rails'
  gem "poltergeist"
  gem "database_cleaner"
end

Guardfile

guard :rspec, cmd: "bundle exec rspec" do
↓
guard :rspec, cmd: "bin/rspec" do