jhrr’s gists

jhrr / fakecassandra.py

Created October 11, 2013 08:52 — forked from mmalone/fakecassandra.py

	# In-memory Cassandra-ish thingy... useful for unit tests. Maybe useful for other
	# stuff too? No support for SuperColumns, but that should be easy enough to add.


	import bisect
	import copy
	from cassandra.ttypes import NotFoundException, Column, ColumnPath, ColumnOrSuperColumn


	class SSTable(object):

jhrr / Functional Core, Imperative Shell

Last active January 8, 2018 16:11

Notes and links for ideas about Gary Bernhardt's "functional core, imperative shell"

	http://www.infoq.com/presentations/Simple-Made-Easy
	http://www.infoq.com/presentations/integration-tests-scam
	http://blog.thecodewhisperer.com/2010/09/14/when-is-it-safe-to-introduce-test-doubles
	http://youtu.be/yTkzNHF6rMs
	http://pyvideo.org/video/1670/boundaries
	http://skillsmatter.com/podcast/ajax-ria/enumerators
	http://alistair.cockburn.us/Hexagonal+architecture
	http://c2.com/cgi/wiki?PortsAndAdaptersArchitecture
	http://www.confreaks.com/videos/977-goruco2012-hexagonal-rails
	http://www.confreaks.com/videos/1255-rockymtnruby2012-to-mock-or-not-to-mock

jhrr / map-filter-fold.rkt

Last active December 27, 2015 18:19

A bunch of implementations for map, filter and fold in Racket

jhrr / map-filter-fold.ml

Last active December 27, 2015 18:19

	(* map *)

	fun map(_, nil) = nil
	\| map(f, (head::tail)) = f(head) :: map(f, tail)

	(* filter *)

	fun filter(_, nil) = nil
	\| filter(p, (head::tail)) = if p(head)
	then (head :: filter(p, tail))

jhrr / define-test-macro.rkt

Last active December 27, 2015 18:19

	#lang racket

	(require (for-syntax racket/syntax))
	(require rackunit)

	;; Macro for auto-writing tests with defines.
	;; Syntax:
	;; (define+test (function-name parameters ...)
	;; ((test-input desired-result)
	;; ...)

jhrr / git_svn_bash_prompt.sh

Created January 15, 2014 04:07 — forked from woods/git_svn_bash_prompt.sh

	#!/bin/bash
	#
	# DESCRIPTION:
	#
	# Set the bash prompt according to:
	# * the branch/status of the current git repository
	# * the branch of the current subversion repository
	# * the return value of the previous command
	#
	# USAGE:

jhrr / preLoadImages.js

Last active August 29, 2015 13:56

JQuery image preloader that should work correctly with the hashing mechanism from django-compressor.

	function preLoadImages () {
	$.get($('link[rel="stylesheet"]')[0].href, function(data){
	r = /url$['\|"]?(\S+\.(gif\|jpg\|jpeg\|png)[^'(]*)['\|"]?$/ig;
	while (match = r.exec(data)){
	var cacheImage = document.createElement('img');
	cacheImage.src = match[1];
	}
	});
	}
	preLoadImages();

jhrr / OSX-fixes.el

Last active January 6, 2024 07:25

Make sure emacsen in a graphical frame running on OSX have the correct path and that the hash key (alt-3) is working.

	;; Detect OS
	(defvar macosx-p (string-match "darwin" (symbol-name system-type)))

	;; osx fixes
	(defun insert-hash ()
	(interactive)
	(insert "#"))

	(defun set-exec-path-from-shell-PATH ()
	(let ((path-from-shell

jhrr / Non-$HOME .emacs.d

Created February 14, 2014 14:38

Locating your .emacs.d somewhere other than ~/

	(setq user-emacs-directory (expand-file-name "~/Dropbox/path/to/.emacs.d/"))
	(load (locate-user-emacs-file "init.el"))

jhrr / json_functions.py

Created February 14, 2014 18:10

JSON utilities for django

	from django.db import models
	from django.utils.functional import Promise
	from django.utils.encoding import force_unicode
	from django.utils import simplejson as json
	from decimal import Decimal
	from django.core import serializers
	from django.conf import settings
	from django.http import HttpResponse, HttpResponseForbidden, Http404
	from django.core.mail import mail_admins
	from django.db.models.query import QuerySet

	function preLoadImages () {
	$.get($('link[rel="stylesheet"]')[0].href, function(data){
	r = /url\(['\|"]?(\S+\.(gif\|jpg\|jpeg\|png)[^'(]*)['\|"]?\)/ig;
	while (match = r.exec(data)){
	var cacheImage = document.createElement('img');
	cacheImage.src = match[1];
	}
	});
	}
	preLoadImages();