sinsoku

# build:
#   $ docker build -t rails_cred .
#
# usage:
#   $ docker run -it --rm \
#       -e RAILS_MASTER_KEY=$RAILS_MASTER_KEY \
#       -v `pwd`/config/credentials.yml.enc:/app/config/credentials.yml.enc \
#       -v `pwd`/config/credentials:/app/config/credentials \
#       rails_cred

sinsoku

# bad
class A
  def cool_calc(b)
    b.foo + b.bar * 2
  end
end

# good
class B
  def cool_value

sinsoku

enum = Enum.new(:a, :b, :c)
status = :b

# pattern 1
enum.case status do
  _when(:a) do
    p :a
  end
  _when :b do

sinsoku

module CaseMatch
  class Error < StandardError; end

  class Case
    EMPTY_BLOCK = -> {}

    def initialize(obj, cases)
      @obj = obj
      @cases = cases
      @values = []

sinsoku

require 'binding_of_caller'

module EnumeratorPipeline
  class Builder
    def initialize(name)
      @callbacks = []
      @callbacks << binding.of_caller(1).method(name)
    end

    def >>(name)

sinsoku

use std::io::{self, Empty, BufRead, Write, Cursor};

fn read_input<R, W>(source: Option<R>, mut writer: W) -> String
where R: BufRead, W: Write
{
    write!(&mut writer, "input: ").unwrap();
    writer.flush().unwrap();

    let mut input = String::new();
    match source {

sinsoku

# app/models/article.rb
class Article < ApplicationRecord
  has_many :article_publications

  scope :draft, -> { left_joins(:article_publications).where(article_publications: { id: nil }) }
  scope :published, -> { joins(:article_publications) }
end

# app/models/article_publication.rb
class ArticlePublication < ApplicationRecord

sinsoku

# 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"

sinsoku

<% A.foo(@user) do |f| %>
  <%= f.label :name %>
  <%= f.text_field :name %>
<% end %>

sinsoku

resource "aws_db_instance" "db" {
  count = "${terraform.workspace == "default" ? 1 : 0}"
}

resource "aws_rds_cluster" "db" {
  count = "${terraform.workspace == "default" ? 0 : 1}"
}

locals {
  db_endpoint = "${terraform.workspace == "default" ? aws_db_instance.db.endpoint : aws_rds_cluster.db.endpoint}"