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@nolanlawson
nolanlawson / couchdb_changes.md
Last active December 21, 2023 03:22
Anatomy of the CouchDB changes feed

Anatomy of the CouchDB changes feed

I just spent a lot of time finally understanding CouchDB's changes feed, so I thought I'd do a short writeup here.

The mystery

Let's imagine the following changes to the database. There are two documents, A and B:

_id seq rev winner?
@uhop
uhop / nginx-webp-sample.conf
Last active November 3, 2023 12:09
Serving WEBP with nginx conditionally.
user www-data;
http {
##
# Basic Settings
##
sendfile on;
tcp_nopush on;
@nolanlawson
nolanlawson / progressive.md
Last active June 29, 2023 02:07
Progressive web apps reading list
@Mithrandir0x
Mithrandir0x / gist:3639232
Created September 5, 2012 16:15
Difference between Service, Factory and Provider in AngularJS
// Source: https://groups.google.com/forum/#!topic/angular/hVrkvaHGOfc
// jsFiddle: http://jsfiddle.net/pkozlowski_opensource/PxdSP/14/
// author: Pawel Kozlowski
var myApp = angular.module('myApp', []);
//service style, probably the simplest one
myApp.service('helloWorldFromService', function() {
this.sayHello = function() {
return "Hello, World!"
@nhoizey
nhoizey / screenshots.js
Created November 12, 2012 17:07
Take screenshots at different viewport sizes using CasperJS
/*
* Takes provided URL passed as argument and make screenshots of this page with several viewport sizes.
* These viewport sizes are arbitrary, taken from iPhone & iPad specs, modify the array as needed
*
* Usage:
* $ casperjs screenshots.js http://example.com
*/
var casper = require("casper").create();
@JISyed
JISyed / MoveCamera.cs
Last active November 29, 2022 11:24
Camera movement script in Unity3D. Supports rotating, panning, and zooming. Attach to the main camera. Tutorial explaining code: http://jibransyed.wordpress.com/2013/02/22/rotating-panning-and-zooming-a-camera-in-unity/
// Credit to damien_oconnell from http://forum.unity3d.com/threads/39513-Click-drag-camera-movement
// for using the mouse displacement for calculating the amount of camera movement and panning code.
using UnityEngine;
using System.Collections;
public class MoveCamera : MonoBehaviour
{
//
// VARIABLES
@wrburgess
wrburgess / gist:5528649
Last active November 24, 2022 15:29
Backup Heroku Postgres database and restore to local database

Grab new backup of database

Command: heroku pgbackups:capture --remote production

Response: >>> HEROKU_POSTGRESQL_COLOR_URL (DATABASE_URL) ----backup---> a712

Get url of backup download

Command: heroku pgbackups:url [db_key] --remote production

@adamawolf
adamawolf / geojson_us.js
Created September 3, 2012 23:15
GeoJSON Multipolygon for the United States
{
"type": "MultiPolygon",
"coordinates":
[
[
[
[ -123.123779, 48.227039 ], // contig. u.s.
[ -123.318787, 49.000042 ],
[ -121.742592, 49.000267 ],
[ -95.157394, 49.000493 ],
@bhurlow
bhurlow / jpost
Last active October 30, 2021 19:05
alias so you can pipe into curl to post json
#!/bin/bash
curl -X POST -d @- $1 --header "Content-Type:application/json"
anonymous
anonymous / gist:156623
Created July 27, 2009 16:41
"""
This fabric file makes setting up and deploying a django application much
easier, but it does make a few assumptions. Namely that you're using Git,
Apache and mod_wsgi and your using Debian or Ubuntu. Also you should have
Django installed on your local machine and SSH installed on both the local
machine and any servers you want to deploy to.
_note that I've used the name project_name throughout this example. Replace
this with whatever your project is called._