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View count_sql_creates.rb
def count_sql_creates
counts =
logger = -> (event, start, finish, id, payload) do
if (table = payload[:sql][/INSERT INTO "(.+?)"/, 1])
counts[table] += 1
subscription = ActiveSupport::Notifications.subscribe('sql.active_record', logger)
jakeonrails / .set_tab_color
Created Jul 20, 2016
Set Tab Color for ZSH + iTerm2
View .set_tab_color
#!/usr/bin/env ruby
# Change tab color based on pwd.
# If a directory contains a .tabcolor file, it will use the lines of that file
# as RGB values. It should look like:
# 255
# 128
# 96
View code-challenge.rb
#!/usr/bin/env ruby
# Usage:
# $ ruby code-challenge.rb < repo>
repo = ARGV[0]
# Clear previous challenge
puts "Removing previous directories"
`rm -rf coding-challenge-source`
`rm -rf coding-challenge`
View active_record_insert_count_report.rb
require 'awesome_print'
# Put this file into your spec/support directory in order to have RSpec automatically report
# on the total number of database records created during a run of your test suite.
class ActiveRecordInsertCountReport
include Singleton
def subscribe_to_notifications
ActiveSupport::Notifications.subscribe('sql.active_record') do |*args|
name, start, ending, transaction_id, payload = args
table_name = payload[:sql][/insert into "(.+?)"/i, 1]
View ringbuffer.rb
class RingBuffer
def initialize(redis=nil, list_key=nil)
@redis = redis
def next
JSON(@redis.rpoplpush(@list_key, @list_key))[0]
def add(item)
jakeonrails / .change-tab-color-pwd
Created Sep 24, 2015
How to have change the tab color in iTerm2 based on what folder or directory you are in
View .change-tab-color-pwd
#!/usr/bin/env python
Set terminal tab / decoration color by the server name.
Get a random colour which matches the server name and use it for the tab colour:
the benefit is that each server gets a distinct color which you do not need
to configure beforehand.
jakeonrails / prepare-commit-message
Last active Aug 29, 2015
prepare-commit-message that requires a JIRA ID and adds it if the branch name contains one
View prepare-commit-message
#!/usr/bin/env ruby
# Git Prepare Commit Message Hook Script
# Location: <repository>/.git/hooks/prepare-commit-msg
# This script will automatically add the correct
# JIRA ISSUE ID to the end of each commit message
# When the branch ID starts with the JIRA ISSUE ID.
# It can be overridden if specified in the message.
View find_each_by_column.rb
class ActiveRecord::Base
def self.find_each_by(column, options={}, &block)
return enum_for(:find_each_by_column) unless block_given?
last_value = last_id = nil
order = options.fetch(:order, :asc)
batch_size = options.fetch(:batch_size, 1000)
operator = order == :asc ? '>=' : '<='
loop do
jakeonrails / gist:c2f302bce7b1e4707faa
Created Apr 11, 2015
Circle CI Failure Bookmarklet
View gist:c2f302bce7b1e4707faa
"<style>textarea { font-size: large; font-family: monospace;}</style>" +
"<h4>Cucumber failures</h4><textarea style='height: 25%;width: 100%'>cucumber " +
$('').filter(function() {
return (this.textContent).match(/cucumber .+:\d+/)
}).map(function() {
return $(this).text().match(/cucumber (.+)/)[1]
).sort()).join(' ') +
jakeonrails / parser_spec.rb
Created Jan 25, 2014
Reverse Polish Notation parser
View parser_spec.rb
require 'spec_helper'
class Parser
def parse(string)
stack = []
tokens = string.split(' ')
tokens.each do |token|
if token =~ /\d/
value = token.to_i
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