marcosgz

#!/usr/bin/env ruby

# It's ODM (Object Document Mapper) to the RGB data
class RGB
  COLORS = {
    r: ->(val) { "\e[31m#{val}\e[0m" },
    g: ->(val) { "\e[32m#{val}\e[0m" },
    b: ->(val) { "\e[34m#{val}\e[0m" },
  }.freeze

marcosgz

#!/usr/bin/env ruby

# It's ODM (Object Document Mapper) to the RGB data
class RGB
  # @overload initialize(r, g, b, value)
  #   @param r [Integer] Value for R
  #   @param g [Integer] Value for G
  #   @param b [Integer] Value for B
  #   @param value [Object] describe value param
  # @overload initialize(r, g, b)

marcosgz

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' 

marcosgz

require 'nokogiri'
require 'cgi'

xml = <<~XML
<export>
<row>
 <CODIGO>13213215</CODIGO>
 <MERCADORIA>Exemplo <1</MERCADORIA>
 <II></II>
 <PIS></PIS>

marcosgz

class BooleanValue
  # https://github.com/rails/rails/blob/master/activerecord/lib/active_record/connection_adapters/column.rb#L8
  FALSE_VALUES = [false, 0, '0', 'f', 'F', 'false', 'FALSE', 'off', 'OFF']

  def self.from_string(value)
    Rails.present? ? with_rails(value) : without_rails(value)
  end

  private

marcosgz

# Aws::VERSION
# => "2.11.97"
credentials = Aws::Credentials.new(ENV['AWS_KEY'], ENV['AWS_SECRET'])
client = Aws::S3::Client.new(credentials: credentials)
s3 = Aws::S3::Resource.new(credentials: credentials)
s3_bucket = s3.bucket(ENV['BUCKET'])

# https://docs.aws.amazon.com/sdkforruby/api/Aws/S3/Client.html#put_object_acl-instance_method
s3_bucket.objects(prefix: 'path/to/directory').each do |obj|
  client.put_object_acl(bucket: s3_bucket.name, key: obj.key, acl: 'public-read').to_h

marcosgz

module ViewAssigns
  def self.included(base)
    puts "Included #{ self }/#{self.singleton_class} into #{base}/#{base.singleton_class}"

    class << base
      attr_accessor :assigns

      def assign(name, value = nil)
        self.assigns ||= {}
        self.assigns[name] = value

marcosgz

class A
  def name
    @name ||= rand
  end
end

class B
  # Ruby Memoization using Singleton Method
  def name
    def self.name; @name; end

marcosgz

# this monit config goes in /etc/monit/conf.d

check process puma_master
  with pidfile  /data/myapp/current/tmp/puma.pid
  start program = "/etc/monit/scripts/puma start"
  stop program = "/etc/monit/scripts/puma stop" 
  group myapp

check process puma_worker_0
  with pidfile /data/myapp/current/tmp/puma_worker_0.pid

marcosgz

#!/usr/bin/env ruby
require 'net/telnet'

key_prefix = 'www.your:prefix'
cache_dump_limit = 1000

localhost = Net::Telnet::new("Host" => "localhost", "Port" => 11211, "Timeout" => 3)
slab_ids = []
localhost.cmd("String" => "stats items", "Match" => /^END/) do |c|
  matches = c.scan(/STAT items:(\d+):/)