Bernardo bernardobarreto

Elixir installation guide

Version numbers should be the ones you want. Here I do it with the last ones available at the moment of writing.

The simplest way to install elixir is using your package manager. Sadly, at the time of writing only Fedora shows the intention to keep its packages up to date. There you can simply sudo dnf install erlang elixir and you are good to go.

Anyway, if you intend to work with several versions of erlang or elixir at the same time, or you are tied to a specific version, you will need to compile it yourself. Then asdf is your best friend.

Installing Cassandra on Mac OS X

Install Homebrew

Homebrew is a great little package manager for OS X. If you haven't already, installing it is pretty easy:

ruby -e "$(curl -fsSL https://raw.github.com/Homebrew/homebrew/go/install)"

Web fonts are pretty much all the rage. Using a CDN for font libraries, like TypeKit or Google Fonts, will be a great solution for many projects. For others, this is not an option. Especially when you are creating a custom icon library for your project.

Rails and the asset pipeline are great tools, but Rails has yet to get caught up in the custom web font craze.

As with all things Rails, there is more then one way to skin this cat. There is the recommended way, and then there are the other ways.

The recommended way

Here I will show how to update your Rails project so that you can use the asset pipeline appropriately and resource your files using the common Rails convention.

A few show tricks to find slow queries in mongodb

Enable profiling

First, you have to enable profiling

> db.setProfilingLevel(1)

Now let it run for a while. It collects the slow queries ( > 100ms) into a capped collections, so queries go in and if it's full, old queries go out, so don't be surprised that it's a moving target...

	#!/usr/bin/env ruby

	# A sneaky wrapper around Rubocop that allows you to run it only against
	# the recent changes, as opposed to the whole project. It lets you
	# enforce the style guide for new/modified code only, as opposed to
	# having to restyle everything or adding cops incrementally. It relies
	# on git to figure out which files to check.
	#
	# Here are some options you can pass in addition to the ones in rubocop:
	#

	#!/bin/bash
	# Source this from ~/.bashrc or similar.

	if [[ ! "$0" =~ "bash" ]]; then
	echo "$0 should be sourced, not executed."
	exit 1
	fi

	_workon_list_virtualenvs() {
	local virtualenv

	<!doctype html>
	<html ng-app="project">
	<head>
	<title>Angular: Service example</title>
	<script src="http://code.angularjs.org/angular-1.0.1.js"></script>
	<script>
	var projectModule = angular.module('project',[]);

	projectModule.factory('theService', function() {
	return {

	function RemoveAccents(strAccents) {
	var strAccents = strAccents.split('');
	var strAccentsOut = new Array();
	var strAccentsLen = strAccents.length;
	var accents = 'ÀÁÂÃÄÅàáâãäåÒÓÔÕÕÖØòóôõöøÈÉÊËèéêëðÇçÐÌÍÎÏìíîïÙÚÛÜùúûüÑñŠšŸÿýŽž';
	var accentsOut = "AAAAAAaaaaaaOOOOOOOooooooEEEEeeeeeCcDIIIIiiiiUUUUuuuuNnSsYyyZz";
	for (var y = 0; y < strAccentsLen; y++) {
	if (accents.indexOf(strAccents[y]) != -1) {
	strAccentsOut[y] = accentsOut.substr(accents.indexOf(strAccents[y]), 1);
	} else

	<% flash.each do \|type, message\| %>
	<div class="alert <%= bootstrap_class_for(type) %> fade in">
	<button class="close" data-dismiss="alert">×</button>
	<%= message %>
	</div>
	<% end %>

	# !/bin/sh

	# CUSTOM version by Gabriel Lima (http://www.github.com/gabriellima) (@glima5)
	# * Check portuguese (pt_BR) apt-get output
	# * support '--force-yes' param to pass through user response
	# * pass '-n10' to axel, to use 10 connections instead of default number
	# * show packages installed or upgraded in the end of command execution

	# apt-fast v0.02 by Matt Parnell http://www.mattparnell.com, this thing is fully open-source
	# if you do anything cool with it, let me know so I can publish or host it for you