karmatr0n

\set ON_ERROR_ROLLBACK interactive
\set COMP_KEYWORD_CASE upper
\set HISTFILE ~/.psql_history- :USER - :HOST - :PORT - :DBNAME
\set PROMPT1 '%M:%[%033[1;31m%]%>%[%033[0m%] %n@%/%R%#%x '
\pset pager off
\pset null '(null)'

karmatr0n

---
# The paths in which to look for gems
# :gempath:

# Force specification of gem server host on push
# disable_default_gem_server:

# A YAML array of remote gem repositories to install gems from
# :sources:

karmatr0n

def load_gems!
  %w[irb/completion irb/history irb/color rubygems].each do |gem|
    require gem
  end

  return unless Gem::Version.new(RUBY_VERSION) > Gem::Version.new('2.7.0')

  require 'irb/easter-egg'
end

karmatr0n

H4sIANouTmUAA+1aQW/bNhT2BgzDuPN25rqDXaChKYqSbAPO4CRuEyBJMyfdGhRFIMu0LUSWHEqKkxYbdtxp52HXAbvuPOx37LjjjvsPIyXLiby4TgDFbW19gSL5ie/xUdR77yPtfhAMTzjr2JxZQblwL8AYG5oGo7MenzGh8XkMqFCNqJQYKtEhVqhh4ALU7sedNEI/MLlw5dTkAzPg2J3RTjTrdt9gZzyOyfk9QT81/+jE8tyu3UM8zLAP8Tx0SmfPP6FqPP8qxbqhifk3MCEFiDP0YSZWfP4LH33+ceHDQmHPtODTQ/gcjiFlhU/EQcRxJg75+dfbmWwcHbXGl1LjZ3F8OtXkgyv5Z5Y3QOZw6DA05N45c03XYrLBH/v//P3TL789z2CQOWYhHf8H5sU2MzuMl7PMA3PjX8Hp+CdY00T+v8ig77lY8fhXMRwE9oDVFb1a1apUr2jIoFWjQg2FAs2Auzsbjdbm9s43TXRhBgFHN4VrvfF1oxE+Mxz1WDeHTg/QKjwUSrvHb1K6FuPgbT+HVUU6/u+j+s+PfyyE6fqv69jI6/8iwNlZKOZevAKOGdjnDBZTb0QR8NCF20LUGkuQy0Zv2+kcmWGa/6c+I97Ooo9b839KdAUTWf9VHefxvxDk/H+lMYv/Z5kHbs3/J/EvJHrO/xeBFP/XiVLVKJIJWcFVtZrz/6VHOv7vo/rPj39K9en6r2h5/V8IxvwfFrlpnRaB5Zi+n+L7AMIO60LLdJwSc88fAskOhBasw5ZQqdVawgLzo3XBVQPL9JlshYZm0D+x3a4XiUd95sKy4/W8MCiDmGm8UDF5BF8XHc8SKxDPLcL6erwK8Wvl8mg0Qj3P64nMIXJIjVK17DOTW/2vzupCsfjdI/ji5cvIFHN8ltgkGEubYj0bMDdYCy6HLLYbsAv5mg+cSLO4zRzHg13uDaLRfFFMbLkdEP+XxxJnp2n+/4QNurbDMu3jLvv/IgfI9T/V8/X/YvDu8v9///zhd3Xjrx8zGGSOWZjF

karmatr0n

require 'securerandom'
SecureRandom.base64(28).slice(0,26).gsub(/(\+|\/)/,("a".."z").to_a.
sample)

karmatr0n

Ruby Debug Gem Notes

Debug control

• show_cmds
• whereami
• l or list
• list 22-28 # Range of lines requested
• show_source "Class or Class#method"
• info # Instance variables, local variables, etc
• step # go for next line/point of execution after the breakpoint (line by line)

karmatr0n

require 'test/unit'
def integer_to_sixtytwo(n)
    return '0' if n.zero?
    sixtytwo_digits = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'
    result = ''
    while n > 0 do
        result << sixtytwo_digits[n % 62]
        n /= 62
    end
    result.reverse

karmatr0n

def move_zeros(nums)
  return nums if nums.empty?
  left = 0
  right = nums.length - 1
  while left < right do
    if nums[left] == 0
       nums[left], nums[right] = nums[right], nums[left]
       right -= 1
    else
       left += 1

karmatr0n

def minimal_heaviest_subset(weights)
  weights.sort!
  half_sum = weights.sum / 2
  weights
    .each_cons(2)
    .filter {|a, b| a+b >= half_sum}
    .flatten
    .uniq
end

karmatr0n

require 'uri'
require 'net/http'
require 'csv'

class Downloader
  attr_accessor :uri, :content

  def initialize(uri)
    @uri = URI(uri)
    @content = nil