tomchapin

WITH RECURSIVE
    x(i) AS ( VALUES (0)
              UNION ALL SELECT i + 1
                        FROM x
                        WHERE i < 101),
    Z(Ix, Iy, Cx, Cy, X, Y, I) AS (
    SELECT
      Ix,
      Iy,
      X :: FLOAT,

tomchapin

require 'active_support/core_ext/string/inflections'
require 'colorize'

players = ARGV.clone

raise 'You must specify players (separated by spaces) as parameters.' and exit(1) unless players.count > 0

until players.count == 0
  player1, player2 = players.shuffle!.slice!(0,2)
  player2 ||= "Bot(AI)"

tomchapin

# If the source arrays don't have nil in them, you only need to extend the first array with nils, zip will automatically pad the others with nil. This also means you get to use compact to clean the extra entries out which is hopefully more efficient than explicit loops

def interleave(a,*args)
    max_length = args.map(&:size).max
    padding = [nil]*[max_length-a.size, 0].max
    (a+padding).zip(*args).flatten.compact
end

# Here is a slightly more complicated version that works if the arrays do contain nil

tomchapin

--database=postgresql
--skip-test-unit
--skip-bundle
--template=https://gist.github.com/tomchapin/5541218/raw/rails-template.rb

tomchapin

  def session_with_debug
    SessionDebugger.new(session_without_debug)
  end

  alias_method_chain :session, :debug

  class SessionDebugger < SimpleDelegator

    def []=(key, val)
      puts "#{caller.first} SET session:#{key} TO #{val.inspect}"

tomchapin

--database=postgresql
--skip-test-unit
--skip-bundle
--template=https://gist.github.com/jwaldrip/5538342/raw/rails-template.rb

tomchapin

Git Cheat Sheet

Commands

Getting Started

git init

or

git clone url

tomchapin

What I Wish I'd Known About Equity Before Joining A Unicorn

Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.

This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would

tomchapin

Keybase proof

I hereby claim:

• I am tomchapin on github.
• I am tomchapin83 (https://keybase.io/tomchapin83) on keybase.
• I have a public key ASAiFqeTQIRMK4YEVyUWKfuF7uyZw1cFrhFRNJwn5yW7CAo

To claim this, I am signing this object:

tomchapin

-- 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%'