revans

#!/usr/bin/env bash
#
# About:
#
# If you use ~/.ssh/config often enough that you cannot remember the URLs
# anymore, but you do know the SSH Host names you gave each SSH entry,
# then this might be helpful. This script will find the Host and open
# the HostName up in a new browser window, using your default browser.
#
# Installation:

revans

Finding a Ruby memory leak using a time analysis

When developing a program in Ruby, you may sometimes encounter a memory leak. For a while now, Ruby has a facility to gather information about what objects are laying around: ObjectSpace.

There are several approaches one can take to debug a leak. This discusses a time-based approach, where a full memory dump is generated every, say, 5 minutes, during a time that the memory leak is showing up. Afterwards, one can look at all the objects, and find out which ones are staying around, causing the

revans

class Api::UploadsController < ApiController

  def create
    @upload = Upload.new(upload_params)
  ensure
    clean_tempfile
  end

  private

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  class RouteRecognizer
    attr_reader :paths
    
    # To use this inside your app, call:
    # `RouteRecognizer.new.initial_path_segments`
    # This returns an array, e.g.: ['assets','blog','team','faq','users']

    INITIAL_SEGMENT_REGEX = %r{^\/([^\/\(:]+)}

    def initialize

revans

require 'md5'

class Chargify::HooksController < ApplicationController
	protect_from_forgery :except => :dispatch
	before_filter :verify, :only => :dispatch

	EVENTS = %w[ test signup_success signup_failure renewal_success renewal_failure payment_success payment_failure billing_date_change subscription_state_change subscription_product_change ].freeze

	def dispatch
		event = params[:event]

revans

# Instance Methods

class Demo
  def say_hi
    puts "hi"
  end
end

Demo.new.say_hi # => 'hi'

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module Test
  extend self
  
  def name
    @name ||= "My name"
  end

  def read
    @name
  end

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class UserController < ApplicationController

  def create
    @user = User.new(user_params)
    respond_to do |format|
      if @user.save
        ...
      else
        ...
      end

revans

require 'ostruct'
require 'yaml'

 
#
# A quick and dirty example of something that could be inside of rails to provide
# a stupid simple mock for a model object that has an associated fixture.
#
# ==== Example
#

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# Demo Database Object Schema:
#
# * name,       string
# * status,     integer
# * created_at, datetime
# * updated_at, datetime
#
class Demo < ActiveRecord::Base
  include BaseScopes