subelsky

#!/usr/bin/env ruby
require "rubygems"
require "mechanize"
require "domain_name"

m = Mechanize.new

puts "<ul>"

DATA.each_line do |line|

subelsky

-- based on http://stackoverflow.com/questions/21767780/how-to-find-size-of-database-schema-table-in-redshift
SELECT name AS table_name, ROUND((COUNT(*) / 1024.0),2) as "Size in Gigabytes"
FROM stv_blocklist
INNER JOIN
(SELECT DISTINCT id, name FROM stv_tbl_perm) names
ON names.id = stv_blocklist.tbl
GROUP BY name
ORDER BY "Size in Gigabytes" DESC

subelsky

Keybase proof

I hereby claim:

• I am subelsky on github.
• I am subelsky (https://keybase.io/subelsky) on keybase.
• I have a public key whose fingerprint is 5DFB 121D 24D8 CA6C 0F2C B51A 3D25 9BC3 602E CC74

To claim this, I am signing this object:

subelsky

# no need to require anything

module DateTimeFormatFunctions
  def quarter
    ((month - 1) / 3) + 1
  end
  
  def strftime(format=nil)
    super(format.to_s.tap.gsub!('%Q',quarter.to_s)
  end

subelsky

# This is how I'd use threads in rspec to test whether a shared state primitive works as expected 
#(pessimistic database lock,advisory database lock, mutex, etc.)
around do |example|
  die = false
  
  lock_taker = Thread.new do 
    code_that_takes a lock do
      loop do
        break if die
        sleep 0.1 # not strictly necessary but slows CPU churn

subelsky

#!/usr/bin/env ruby
# STAQ threading & forking training 4/26/16
#
# Invoke like so:
#
# ruby forking_and_threading.rb
# ruby forking_and_threading.rb thread
# ruby forking_and_threading.rb naive # seems to work OK
# env RBENV_VERSION=jruby-9.0.4.0 ruby ./forking_and_threading.rb naive # why does this give different results?
#

subelsky

# We document all of our Ruby code with YARD tags; see http://www.rubydoc.info/gems/yard/file/docs/Tags.md
# This snippet helps add all of the common tags to a method that I use everyday.

# The format is used by the UltiSnips Vim plugin; see https://github.com/SirVer/ultisnips/blob/master/doc/UltiSnips.txt

snippet yd "YARD tags"
# ${1:Method description}
# @param ${2:obj} [${3:Object}] ${4:description}
# ${0} @yield
# @yieldparam obj [Object]

subelsky

class Adder
  def add(a,b)
    a + b
  end
end

if __FILE__ == $0
  adder = Adder.new
  result = adder.add(1,2)
  

subelsky

# There should usually be one and only one require statement at the top of a spec, explicitly loading
# the only class this test relates to. That file should include any additional dependencies needed
# by the class (activesupport, nokogiri, etc.)
require "widget"

# Let's pretend we are testing a class called Widget that has only one method, .call (and in fact,
# almost all of our classes should be so simple they just have one method).
#
# class Widget
#   # If you allow dependencies to be injected into your class, it's much easier to test and

subelsky

# There's not much documentation about nifi's JRuby API but it closely follows
# what the python API looks like:
# see http://funnifi.blogspot.com/2016/02/executescript-processor-hello-world.html

flow_file = session.get()
updated_flow_file = session.putAttribute(flow_file,"my-attribute","my-value")
session.transfer(updated_flow_file,REL_SUCCESS)