gkaemmer

Elixir Supervision Trees Made Easy

I started with Elixir just a couple weeks after the switch from 1.4 to 1.5, so the bulk of online resources were out of date (or at least resulted in deprecation warnings). This guide is for defining Elixir 1.5 supervised modules.

It's not actually terribly complicated. It's just sometimes unclear from examples what's implemented by the language and what you actually have to implement yourself.

Say we want a supervision tree like this (where each atom is a process):

    :a

/ \

gkaemmer

0xc0af01dd5dc025c47b6e65d3bdc612fcdb4a2aec

gkaemmer

The Problem

Just running brew install imagemagick literally never works.

The motivation here is the abundance of problems like this one, this one, this one, and every other search result for imagemagick os x error.

It's ridiculous. All we're really trying to do is resize a picture of our user's dog.