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tjsingleton / mysql-to-csv.rb
Created Jan 13, 2017
Reads from STDIN or a file, converts \G mysql formatted results to csv, and writes to STDOUT
View mysql-to-csv.rb
require "csv"
# Reads from STDIN or a file, converts \G mysql formatted results to csv, and writes to STDOUT
# STDIN Usage:
# mysql ... | ruby mysql-to-csv.rb
# File Usage:
# ruby mysql-to-csv.rb results.txt
tjsingleton / delete-instance.rb
Last active May 12, 2016
For a list of instances returned from a chef search, terminate instances, release any elastic ips, and delete any attached volumes.
View delete-instance.rb
require 'time'
require 'json'
require 'pp'
require 'open3'
class DeleteShare
def initialize
@instances = {|h,k| h[k] = [] }
@public_ips = {|h,k| h[k] = [] }
@volumes = {|h,k| h[k] = [] }
View apple_stock.rb
# swap loops so we can exit early from the inner loop once we've searched the valid range
require "pp"
require "minitest/autorun"
class StockTest < Minitest::Test
attr_accessor :loops
def pick_best_time_to_buy(stock)
best_value = 0
View google ips
descr: Google
origin: AS15169
mnt-by: MAINT-AS15169
changed: 20110301
source: RADB
descr: Google
tjsingleton / create-feature-branch
Last active Dec 27, 2015
Git helpers I install to ~/bin
View create-feature-branch
#!/usr/bin/env bash
usage (){
echo "Usage: $0 new-branch-name"
exit 1
[[ $# -eq 0 ]] && usage
git fetch origin
View repl.rb
_ = nil
scope = binding
loop do
print "> "
code = gets.chomp
_ = eval(code, scope)
puts "=> #{_.inspect}"
tjsingleton /
Created Jul 9, 2013
require_relative in
require_relative './mylib'
run ->(env){ [200, {}, ['']] }
View clean_epf.rb
last_line = nil
index = 0
ARGF.each_line do |line|
index += 1
next if index < 35
puts last_line if last_line # skip last line
line.gsub!("#{0x01}\\#{0x01}", "#{0x01}#{0x01}")
line.gsub!("\\", "\\\\")
View creating_an_order.json
{"resource":"Orders","http_method":"POST","route":"/orders","description":"Creating an order","explanation":"First, create an order, then make a later request to get it back","parameters":[{"name":"name","description":"Name of order","required":true,"scope":"order"},{"name":"paid","description":"If the order has been paid for","required":true,"scope":"order"},{"name":"email","description":"Email of user that placed the order","scope":"order"}],"requests":[{"request_method":"POST","request_path":"/orders","request_body":"{\"order\":{\"name\":\"Order 1\",\"paid\":true,\"email\":\"\"}}","request_headers":{"Accept":"application/json","Content-Type":"application/json","Host":"","Cookie":""},"request_query_parameters":{},"request_content_type":"application/json","response_status":201,"response_status_text":"Created","response_body":"{\"email\":\"\",\"name\":\"Order 1\",\"paid\":true}","response_headers":{"Content-Type":"application/json; charset=utf-8","Location":"http:/
tjsingleton / 1mb_comment.rb
Created May 9, 2013
The memory cost of comments in Ruby
View 1mb_comment.rb
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