mpilquist

/* Example of encoding Functor/Applicative/Monad from cats with Dotty 0.15 features.
 * Derived in part from Cats -- see https://github.com/typelevel/cats/blob/master/COPYING for full license & copyright.
 */
package structures

import scala.annotation._

trait Functor[F[_]] {
  def (fa: F[A]) map[A, B](f: A => B): F[B]
  def (fa: F[A]) as[A, B](b: B): F[B] =

cb372

Category theory jargon cheat sheet

A primer/refresher on the category theory concepts that most commonly crop up in conversations about Scala or FP. (Because it's embarassing when I forget this stuff!)

I'll be assuming Scalaz imports in code samples, and some of the code may be pseudo-Scala.

Functor

A functor is something that supports map.

Chaser324

Whether you're trying to give back to the open source community or collaborating on your own projects, knowing how to properly fork and generate pull requests is essential. Unfortunately, it's quite easy to make mistakes or not know what you should do when you're initially learning the process. I know that I certainly had considerable initial trouble with it, and I found a lot of the information on GitHub and around the internet to be rather piecemeal and incomplete - part of the process described here, another there, common hangups in a different place, and so on.

In an attempt to coallate this information for myself and others, this short tutorial is what I've found to be fairly standard procedure for creating a fork, doing your work, issuing a pull request, and merging that pull request back into the original project.

Creating a Fork

Just head over to the GitHub page and click the "Fork" button. It's just that simple. Once you've done that, you can use your favorite git client to clone your repo or j

bryanhunter

#!/bin/bash
# Pull this file down, make it executable and run it with sudo
# wget https://gist.githubusercontent.com/bryanhunter/10380945/raw/build-erlang-17.0.sh
# chmod u+x build-erlang-17.0.sh
# sudo ./build-erlang-17.0.sh

if [ $(id -u) != "0" ]; then
echo "You must be the superuser to run this script" >&2
exit 1
fi

prwhite

# Add the following 'help' target to your Makefile
# And add help text after each target name starting with '\#\#'
 
help:           ## Show this help.
	@fgrep -h "##" $(MAKEFILE_LIST) | fgrep -v fgrep | sed -e 's/\\$$//' | sed -e 's/##//'
 
# Everything below is an example
 
target00:       ## This message will show up when typing 'make help'
	@echo does nothing

loicdescotte

#Play2 : Les Iteratees expliqués aux humains... francophones!

Disclaimer : Ce qui suit est la traduction d'un article anglophone paru sur le blog mandubian.com

Vous pouvez retrouver l'article original ici

Vous avez probablement remarqué une nouvelle fonctionnalité intrigante de Play2 nommée Iteratee (ainsi que ses compagnons Enumerators et Enumeratee). Le but de cet article est d'essayer de rendre le concept d'Iteratee compréhensible pour le plus grand nombre avec des arguments simples, en évitant l'approche mathématique / fonctionnelle.

Cet article ne prétend pas tout expliquer à propos des Iteratee / Enumerator / Enumeratee mais traite plutôt les idées qui se cachent derrière.

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

gburd

# Documentation for HAProxy
#   http://code.google.com/p/haproxy-docs/w/list
#   http://haproxy.1wt.eu/download/1.2/doc/architecture.txt

# NOTES:
#   open files limits need to be > 256000, use ulimit -n to set (on most POSIX systems)

global
        log 127.0.0.1     local0
        log 127.0.0.1     local1 notice

ajsutton

import com.lmax.disruptor.RingBuffer;
import com.lmax.disruptor.dsl.Disruptor;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class BackgroundLogger
{
    private static final int ENTRIES = 64;

jtimberman

# Config for Nginx to act as a front-end for Riak
# The main goal is to proxy all GETs directly to Riak, and disallow anything else (POST, PUT, etc)
# Also, disallow use of the map/reduce query links (i.e. /riak/bucket/key/_,_,_)

# Config is in /etc/nginx/sites-available/default or somewhere like that

# Set up load-balancing to send requests to all nodes in the Riak cluster
# Replace these IPs/ports with the locations of your Riak nodes
upstream riak_hosts {
  server  127.0.0.1:8098;