kamipo

#!/bin/sh

IPTABLES=/sbin/iptables

# 初期化
$IPTABLES -F

# デフォルトルール(以降のルールにマッチしなかった場合に適用するルール)設定
$IPTABLES -P INPUT   DROP   # 受信はすべて破棄
$IPTABLES -P OUTPUT  ACCEPT # 送信はすべて許可

kamipo

# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  git_source(:github) { |repo| "https://github.com/#{repo}.git" }

  gem "rails", github: "rails/rails"

kamipo

# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  git_source(:github) { |repo| "https://github.com/#{repo}.git" }

  gem "rails", github: "rails/rails"

kamipo

abc = :'a b c'
xyz = :"x y z"

__END__
% be rubocop --only Style/StringLiterals quoted_symbol.rb
Inspecting 1 file
.

1 file inspected, no offenses detected

kamipo

# frozen_string_literal: true

def foo(*args, **kwargs)
end

foo(:a, :b, c: :d,
  x: 1,
  y: 2
)

kamipo

ActiveRecord::Schema.define do
  create_table :posts, force: true do |t| 
  end

  create_table :comments, force: true do |t| 
    t.integer :post_id
  end
end

class ApplicationRecord < ActiveRecord::Base

kamipo

using Module.new {
  refine Enumerable do
    alias :orig_sum :sum
  end
}

module Enumerable
  def sum(...)
    p method(:orig_sum)
  end

kamipo

# frozen_string_literal: true

require "mysql2"

def client
  Mysql2::Client.new(
    host: "localhost",
    username: "root",
    database: "test",
  )

kamipo

# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  git_source(:github) { |repo| "https://github.com/#{repo}.git" }

  gem "rails", github: "rails/rails"

kamipo

```bash
brew install postgresql

pg_config

mkdir -p /usr/local/var/postgres
initdb /usr/local/var/postgres -E utf8
vi /usr/local/var/postgres/postgresql.conf