joker1007

class Foo
  attr_reader :hoge, :fuga,

  def initialize(a, b)
    p a
    p b
  end
end

Foo.new # => no error

joker1007

#!/bin/bash

id=$(pw-dump Node | jq -r 'map({id: .id, class: .info.props["media.class"], desc: .info.props["node.description"]} | select(.desc != null)) | sort_by(.class, .desc) | .[] | [.id, .class, .desc] | @tsv' | wofi -di | cut -f 1)

if [ -n "$id" ]; then
  echo "Setting default to $id"
  wpctl set-default $id
fi

joker1007

FROM appbase

# install npm & bower packages
WORKDIR /root
COPY package.json bower.json /root/
RUN npm install --only=prod && \
  npm cache clean && \
  bower install --allow-root

# install gems

joker1007

rails_adminのつらみとオススメGemについて

rails_adminのつらみ

カスタマイズできるようで出来ない

• rails_adminをカスタマイズする方法まとめ - Qiita

レコード件数が一定以上になると使えない機能

• ダッシュボード
• 何も考えずに各モデルをカウントするのでレコード件数増えるとえらいことになる。

joker1007

instance_ids=""
device_name=""
for vol in $(aws ec2 describe-instances --region ap-northeast-1 --instance-ids ${instance_ids} | jq '.Reservations[].Instances[] | .BlockDeviceMappings[] | select(.DeviceName == "'${device_name}'") | .Ebs.VolumeId' -r); do
  current=$(aws ec2 describe-volumes --volume-ids ${vol} | jq '.Volumes[] | .Size')
  target=$(expr $current + 50)
  echo "${vol}: ${current} -> ${target}"
  echo "aws ec2 modify-volume --volume-id ${vol} --size ${target} --dry-run"
  #aws ec2 modify-volume --volume-id ${vol} --size ${target} --dry-run
done

joker1007

for i in [1, 2, 3]
  p i
  j = i
end

p j

[1, 2, 3].each do |k|
  l = k
end

joker1007

class CreateUsers < ActiveRecord::Migration
  def change
    create_table :users do |t|
      t.string :name
      t.references :user_account

      t.timestamps null: false
    end
  end
end

joker1007

Environment

Linux 5.10.6-gentoo #1 SMP PREEMPT Mon Jan 11 02:51:36 JST 2021 x86_64 AMD Ryzen 9 5900X 12-Core Processor AuthenticAMD GNU/Linux

% cat /proc/cpuinfo
processor	: 0
vendor_id	: AuthenticAMD

joker1007

namespace :docker do
  desc "build and push docker image on remote host"
  task :build do
    docker_registry_host = SSHKit::Host.new(fetch(:docker_registry_host))
    docker_registry_host.ssh_options = {
      user: "ec2-user",
      keys: ENV['SSH_KEY'],
    }

    sha1 = `git rev-parse #{fetch(:branch)}`.chomp

joker1007

require "debug_inspector"

class Foo
  def meth1(&block)
    RubyVM::DebugInspector.open do |dc|
      iseq = dc.frame_iseq(2)
      trace = TracePoint.new(:b_return) do |tp|
        pp tp
        tp.disable
      end