Mika Tuupola tuupola

(a gist based on the old toolmantim article on setting up remote repos)

To collaborate in a distributed development process you’ll need to push code to remotely accessible repositories.

This is somewhat of a follow-up to the previous article setting up a new rails app with git.

For the impatient

Set up the new bare repo on the server:

a simple git branching model (written in 2013)

This is a very simple git workflow. It (and variants) is in use by many people. I settled on it after using it very effectively at Athena. GitHub does something similar; Zach Holman mentioned it in this talk.

Update: Woah, thanks for all the attention. Didn't expect this simple rant to get popular.

Turning PostgreSQL into a queue serving 10,000 jobs per second

RDBMS-based job queues have been criticized recently for being unable to handle heavy loads. And they deserve it, to some extent, because the queries used to safely lock a job have been pretty hairy. SELECT FOR UPDATE followed by an UPDATE works fine at first, but then you add more workers, and each is trying to SELECT FOR UPDATE the same row (and maybe throwing NOWAIT in there, then catching the errors and retrying), and things slow down.

On top of that, they have to actually update the row to mark it as locked, so the rest of your workers are sitting there waiting while one of them propagates its lock to disk (and the disks of however many servers you're replicating to). QueueClassic got some mileage out of the novel idea of randomly picking a row near the front of the queue to lock, but I can't still seem to get more than an an extra few hundred jobs per second out of it under heavy load.

So, many developers have started going straight t

	<?php
	/**
	* This is an example of a practical encoder and decoder for base-62 data in PHP
	* It differs from the majority of examples in that it's fast enough for moderate data sizes, unlike multiprecision converters
	* To be practical, base-62 encoding needs to use internal chunking and padding because base-62 does not fit exactly into any integral number of bits
	* This means the output is not quite compatible with multiprecision conversions,
	* but the encoded data retains all the desirable properties of base-62, so (unlike any base-64 encoding) it's URL, DNS, email address and pathname safe
	* @author Marcus Bointon <[email protected]>
	* @copyright 2011 Marcus Bointon
	* @license http://www.opensource.org/licenses/mit-license.html MIT License

	brew update
	brew versions FORMULA
	cd `brew --prefix`
	git checkout HASH Library/Formula/FORMULA.rb # use output of "brew versions"
	brew install FORMULA
	brew switch FORMULA VERSION
	git checkout -- Library/Formula/FORMULA.rb # reset formula

	## Example: Using Subversion 1.6.17
	#

	<!doctype html>

	<!-- http://taylor.fausak.me/2015/01/27/ios-8-web-apps/ -->

	<html>
	<head>
	<title>iOS 8 web app</title>

	<!-- CONFIGURATION -->

	<?php
	class Post
	{
	protected $table = 'posts';

	/**
	* You can define your own custom boot method.
	*
	* @return void
	**/

	[[email protected] www]$ cat .htaccess
	RewriteEngine on
	RewriteCond %{QUERY_STRING} resource=acct:(.+)
	RewriteRule ^\.well-known/webfinger /profile/%1? [L]

	[[email protected] www]$ cat profile/[email protected]
	{
	"subject": "acct:[email protected]",
	"links": [
	{

	// "License": Public Domain
	// I, Mathias Panzenböck, place this file hereby into the public domain. Use it at your own risk for whatever you like.
	// In case there are jurisdictions that don't support putting things in the public domain you can also consider it to
	// be "dual licensed" under the BSD, MIT and Apache licenses, if you want to. This code is trivial anyway. Consider it
	// an example on how to get the endian conversion functions on different platforms.

	#ifndef PORTABLE_ENDIAN_H__
	#define PORTABLE_ENDIAN_H__

	#if (defined(_WIN16) \|\| defined(_WIN32) \|\| defined(_WIN64)) && !defined(__WINDOWS__)

	require 'formula'

	class DnsmasqRegex < Formula
	homepage 'http://www.thekelleys.org.uk/dnsmasq/doc.html'
	url 'http://www.thekelleys.org.uk/dnsmasq/dnsmasq-2.66.tar.gz'
	sha256 '36232fa23d1a8efc6f84a29da5ff829c2aa40df857b9116a9320ea37b651a982'

	option 'with-idn', 'Compile with IDN support'

	depends_on "libidn" if build.include? 'with-idn'