HotFusionMan

• Use a version control system that allows you to deploy exactly what you want to, not "everything up to and including a particular checkin", e.g., use Git, not Perforce.

• Have a centralized admin user account on servers, but also have individual user accounts and make people log in using their individual and then sudo. This strategy provides a better audit trail than logging in directly to the cetnral admin account.

• Don't build a job queue system from scratch using cron. There are so many better-behaved job queue systems in various languages.

  • Cron can't schedule more than some maximum number of jobs in a single minute, so it may miss running some jobs.
  • Cron can't re-run missed jobs, so you have to come up with a way yourself of identifying any missed jobs (either because of the above issue or because cron or the system was down) and running them.

• Databases sometimes need to be versioned in ways besides ActiveRecord-type migrations. For example, if two code branches differ in the columns th

HotFusionMan

import java.lang.reflect.Method ;

String className = "java.lang.Class" ; // or whatever class you're interested in

Class c = Class.forName( className ) ;

Method[] methods = c.getDeclaredMethods() ;

for ( Method m : methods )
{

HotFusionMan

#!/usr/bin/env ruby

require 'rexml/document'

def set_up_Growl
  if `ps -ax | grep GrowlHelperApp\.app | grep -v grep` == '' then
    system( 'open /Library/PreferencePanes/Growl.prefPane/Contents/Resources/GrowlHelperApp.app' )
  end
end

HotFusionMan

now = Time.now.to_a

if ( now[2] * 60 + now[1] ) * 60 + now[0] > START_TIME_IN_SECONDS then
  # start whatever you wanted to start at this time
end

HotFusionMan

# Based on http://stackoverflow.com/questions/2339021/how-can-i-load-some-activerecord-models-from-a-yaml-file-and-save-them-to-the-db/

seed_filepath = File.join( RAILS_ROOT, 'db', 'seeds.yaml' )
config = YAML::load_file( seed_filepath )

config.each { |pluralized_model_name, fixtures|
  model_class = pluralized_model_name.singularize.constantize

  # If you like leaping without looking:
  # model_class.create( fixtures )

HotFusionMan

module PerfectBitsMath
  def number_of_squares_in_interval( m, n )
    1
  end
end

module Math
  extend PerfectBitsMath
end

HotFusionMan

#!/usr/bin/env ruby

arguments = []

ARGV.each { |arg|
  arguments << File.expand_path( arg )
}

system( "java -cp /Applications/jEdit.app/Contents/Resources/Java/jedit.jar:/System/Library/Java -Dapple.awt.textantialiasing=true -Dapple.laf.useScreenMenuBar=true -Dapple.awt.antialiasing=true org.gjt.sp.jedit.jEdit -background #{arguments.join( ' ' )} &" )

HotFusionMan

# Tested under:
# $ ruby -v
# ruby 1.8.7 (2010-04-19 patchlevel 253) [i686-darwin10.4.0], MBARI 0x6770, Ruby Enterprise Edition 2010.02

class C
  def f
    raise NotImplementedError
  end
end

HotFusionMan

#!/bin/bash
~/bin/toggle_Require_password_on_wake.app/Contents/MacOS/applet

HotFusionMan

tell application "System Preferences"
	activate
	
	set current pane to pane id "com.apple.preference.security"
	
	tell application "System Events"
		tell process "System Preferences"
			-- UNLOCK CHECKS
			if (exists checkbox "Click the lock to make changes." of window 1) is true then
				click checkbox "Click the lock to make changes." of window 1