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Simon Engledew simon-engledew

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simon-engledew / jail-union.sh

Last active September 26, 2015 01:18

Create a virtual build environment

	function chroot_jail {
	TEMP="/tmp/$$.$(date +%s)"
	mkdir "$TEMP"

	sudo unionfs "$1=RW:/=RO" "$TEMP" -o allow_other -o dev -o cow

	trap "sudo fusermount -u \"$TEMP\" && rm -r \"$TEMP\"" INT TERM EXIT

	sudo chroot "$TEMP" /bin/bash -c "$(cat)"
	}

simon-engledew / chunks.py

Created June 7, 2011 16:22

python chunked encoding

	import re

	def from_pattern(pattern, type):
	def coerce(value, *args):
	value = str(value)
	match = pattern.search(value)
	if match is not None:
	return type(match.group(1), *args)
	raise ValueError("unable to coerce '%s' into a %s" % (value, type.__name__))
	return coerce

simon-engledew / netconf.py

Created March 27, 2011 09:45

snack based ncurses script for configuring ubuntu networking, first pass

	from __future__ import with_statement
	import snack, ipaddr, optparse, re, shlex

	parser = optparse.OptionParser()
	parser.add_option('--no-cancel', action='store_true', dest='no_cancel', help='Do not display a cancel button')
	parser.add_option('--title', action='store', dest='title', default='Configure Networking', help='set the form title')
	parser.add_option('--interface', action='store', dest='interface', default='eth0', help='interface to edit')
	parser.add_option('--interfaces-file', action='store', dest='interfaces_file', default='/etc/network/interfaces', help='target interfaces file to edit')
	parser.add_option('--dns-file', action='store', dest='dns_file', default='/etc/resolvconf/resolv.conf.d/base', help='target dns file to edit')

simon-engledew / cache.rb

Created December 10, 2010 16:09

Helper/Wrapper for the Rails caching mechanism.

	class Cache
	class << self
	def read(key, &block)
	if (value = self[key]).nil? and block_given?
	value = block.call
	self[key] = value
	end
	return value
	end

simon-engledew / GoogleButtons.html

Created September 23, 2010 10:12

	<html>
	<head>
	<style>
	input[type="button"]::-moz-focus-inner
	{
	border: 0;
	}

	.button, input[type="button"], input[type="submit"]
	{

simon-engledew / application_controller.rb

Created August 11, 2010 10:09

ruby lambda in a different scope

	class ApplicationController < ActionController::Base

	def self.before_filter_in_instance(&block)
	before_filter do \|controller\|
	controller.instance_eval(&block)
	end
	end

	# fails!
	# params is not available

simon-engledew / post-commit

Created August 5, 2010 12:45

Post commit hook to play Hallelujah

	#!/bin/sh
	# post commit hook to play "Hallelujah" after a commit

	FILENAME=~/.git/post-commit.mp3
	DIRECTORY=`dirname $FILENAME`

	if [ ! -d "$DIRECTORY" ]
	then
	mkdir "$DIRECTORY"
	fi

simon-engledew / SEThreadInvocation.h

Created June 24, 2010 08:49

Thread invocation with varargs in Objective C

	//
	// SEThreadInvocation.h
	//

	#import <Foundation/Foundation.h>

	@interface SEThreadInvocation : NSObject
	{
	NSThread * _thread;
	NSInvocation * _invocation;

simon-engledew / run script for resque w. monit

Created February 16, 2010 12:59

A script to run Resque as a daemon.

	#!/usr/bin/env ruby

	if GC.respond_to?(:copy_on_write_friendly=); GC.copy_on_write_friendly = true; end

	def pidfile
	@pidfile \|\|= File.expand_path(File.join('..', '..', 'tmp', 'pids', 'consumer.pid'), __FILE__)
	end

	case ARGV.first
	when 'start' then

simon-engledew / password generator

Created October 21, 2009 09:58

openssl rand 9 -base64