libkazz

bundle update
for m in `git d Gemfile.lock | egrep '^\+    \w' | sed -e 's/^\+    //' -e 's/ (.*//' | sort -u`; do
  git checkout Gemfile.lock
  bundle update $m
  git add -u Gemfile.lock
  git commit -m ":up: $m"
  git push origin HEAD
  echo "============== $m ==============="
done

libkazz

class StoneTori
  class Stones
    def initialize(count)
      @count = count
    end

    def empty?
      @count.zero?
    end

libkazz

since = '2016/3/22'
path = 'app/assets/stylesheets'

`git log --pretty="format:%ad %h" --date=short --since="#{since}" #{path}`.split("\n").reverse.each do |line|
  date, rev = line.split
  system("git checkout #{rev} 2> /dev/null")
  count = `find #{path} -type f -exec wc -l {} \\; | awk '{n+=$1} END{print n}'`.chomp.to_i
  puts [date, rev, count].join(',')
end

libkazz

gzcat tmp/sitemaps/sitemap.xml.gz | ruby -rnokogiri -e 'Nokogiri::XML($stdin.read).search("url/loc").each {|n| puts n.text }'

libkazz

vals = {
  type: ['wood','iron','other'],
  length: [1,2,3,4,5],
  width: [1,2,3],
}

class Hash
  def combination
    keys.reduce([{}]) do |r, key|
      r = _add_to_combination(r, key)

libkazz

# Fill with nil, until list will be the size. 
# 
# [:a].nilfil(4)   #=> [:a, nil, nil, nil, nil]
# [:a,:b,:b,:d,:e].nilfil(4)  #=> [:a, :b, :b, :d, :e]

class Array
  def nilfil(size)
    me = self.dup
    me[size - 1] = me[size - 1]
    me

libkazz

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console

libkazz

# 結論
#
#    ContentTag >>>>> Inline Erb >> Inline HAML
#
# 可読性とパフォーマンスのどちらを取りたいか考えて選択しましょう
#

#
# Inline HAML
#

libkazz

class AddColumnIdToLogs < ActiveRecord::Migration
  def up
    add_column :logs, :id, :integer, null: false # FIXME: Add column to head of columns

    execute 'SET @rownum = 0'
    execute 'UPDATE `access_logs` SET `id` = @rownum := @rownum + 1'
    execute 'ALTER TABLE `logs` ADD PRIMARY KEY(`id`, `date`)'   # Partitioning key () must be primary key.
    execute 'ALTER TABLE `logs` CHANGE `id` id INT(11) AUTO_INCREMENT'
  end

libkazz

# Usage:
#   Book.new('foo.ods').sheet('first sheet').each do |row|
#     puts "first column => " + row["first column"]
#     puts "second column => " + row["second column"]
#   end
#
# Write gem 'roo' at Gemfile
module Foo
  class Book
    def initialize(file)