chrisberkhout’s gists

chrisberkhout / dynamic removal of a dep, based on a condition.rb

Created February 16, 2010 06:49

Babushka: dynamic removal of a dep requirement, based on a condition evaluated after previous requires have been processed

	# dynamic removal of a dep requirement,
	# based on a condition evaluated after previous requires have been processed

	dep 'site' do
	requires \
	'system',
	'account',
	'site dir',
	'site options'
	end

chrisberkhout / data_table.rb

Created April 28, 2011 04:13

Extension to Ruport's Data::Table to do in-memory joins


	class Ruport::Data::Table

	def left_outer_join(right_table, field)
	left_table = self
	result = left_table.sub_table { \|row\| false }

	new_col_names = right_table.column_names.reject { \|i\| i == field.to_s }
	result.add_columns new_col_names

chrisberkhout / gist:971942

Created May 14, 2011 05:26

Github's code for generating participation graphs

	ParticipationGraph.prototype = {
	readData: function () {
	var a = this.data.split("\n");
	this.allCommits = a[0] ? this.base64BytesToIntArray(a[0]) : "";
	this.ownerCommits = a[1] ? this.base64BytesToIntArray(a[1]) : ""
	},
	// ...
	base64ByteToInt: function (a) {
	// This is known as modified Base64 for regexps: http://en.wikipedia.org/wiki/Base64#Regular_expressions
	var d = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!-";

chrisberkhout / via_mopera.net_apn.sh

Created July 17, 2011 05:28

Google: .com vs .co.jp (in Japan)

	chris-berkhouts-macbook-pro-2:~$ ping google.com
	PING google.com (74.125.153.147): 56 data bytes
	64 bytes from 74.125.153.147: icmp_seq=0 ttl=46 time=136.270 ms
	64 bytes from 74.125.153.147: icmp_seq=1 ttl=46 time=135.076 ms
	64 bytes from 74.125.153.147: icmp_seq=2 ttl=46 time=135.428 ms
	64 bytes from 74.125.153.147: icmp_seq=3 ttl=46 time=134.717 ms
	^C
	--- google.com ping statistics ---
	4 packets transmitted, 4 packets received, 0.0% packet loss
	round-trip min/avg/max/stddev = 134.717/135.373/136.270/0.576 ms

chrisberkhout / generic-relational-query.sql

Created August 12, 2011 01:10

Task: get all pieces of content including a certain list of keywords (e.g. ‘Air’, ‘Earth’, ‘Water’, ...)

	SELECT
	`contents`.*
	FROM
	`contents`
	INNER JOIN `contents_keywords` `contents_keywords_0`
	ON `contents`.`id` = `contents_keywords_0`.`content_id`
	INNER JOIN `contents_keywords` `contents_keywords_1`
	ON `contents`.`id` = `contents_keywords_1`.`content_id`
	INNER JOIN `contents_keywords` `contents_keywords_2`
	ON `contents`.`id` = `contents_keywords_2`.`content_id`

chrisberkhout / hack.sh

Created April 14, 2012 00:22 — forked from erikh/hack.sh

OSX For Hackers

	#!/usr/bin/env sh

	##
	# This is script with usefull tips taken from:
	# https://github.com/mathiasbynens/dotfiles/blob/master/.osx
	#
	# install it:
	# curl -sL https://raw.github.com/gist/2108403/hack.sh \| sh
	#

chrisberkhout / pipes.rb

Last active December 11, 2015 12:19

Start of Pipes, which builds on ChildProcess to make piping between processes in Ruby as easy as in the shell

	require "childprocess"

	class Pipes

	class NullBit

	def initialize
	@read, @write = IO.pipe
	end

chrisberkhout / harvest.sh

Created February 8, 2013 05:24

Fork of https://github.com/daymun/harvest-switcher

	#!/bin/bash

	function exitIfRunning {
	if ps ax \| grep -v grep \| grep Harvest\.app > /dev/null
	then
	echo "You must quit Harvest before continuing."
	exit 1
	fi
	}

chrisberkhout / pascals_triangle.rb

Created April 3, 2013 05:20

Generate a row of Pascal's triangle, in Ruby

	def pt(row)
	return [1] if row == 0
	return [1, 1] if row == 1
	last = pt(row-1)
	[1] + (0..row-2).to_a.map { \|i\| last[i] + last[i+1] } + [1]
	end

chrisberkhout / mirror-apt-opengeo-org.sh

Last active November 21, 2016 17:49

A script to mirror the OpenGeo APT repository on S3 (so you still have packages for your version of the suite when OpenGeo releases a new version). Depends on `wget` and `s3cmd`.

	#!/bin/bash

	repo_host="apt.opengeo.org"
	repo_dir="suite/v3/ubuntu"
	repo_release="lucid"

	echo -n "===> Please enter a bucket name: "
	read -e bucket

	echo "===> Confirming you have s3cmd configured..."

Chris Berkhout chrisberkhout