installing

Installing

Reading Material

• Learn You Some Erlang: Introduction

Requirements

In this exercise we will setup our environment before we start our real coding. We will need some software:

• Erlang 27.
• Make (probably already installed on your system).
• Rebar.

We suggest 2 ways to install Erlang + Rebar: asdf or nix.

ASDF

First, we need to install ASDF:

git clone https://github.com/asdf-vm/asdf.git ~/.asdf --branch v0.14.1

Then we'll have to add this to your bash or zsh config file:

. "$HOME/.asdf/asdf.sh"

Or, if you're using fish:

source ~/.asdf/asdf.fish

Be sure to check asdf's website, since there are some extra goodies to config like shell completions.

asdf plugin add erlang https://github.com/asdf-vm/asdf-erlang.git

And finally, install erlang 27.0.1:

asdf install erlang 27.0.1 && asdf global erlang 27.0.1

The global command is just to tell your environment to always use erlang 27, you can use asdf local instead to have distinct versions base on which folder you're currently in.

Nix

Clone the repo:

git clone https://github.com/lambdaclass/erlings.git

cd into this folder and eval the nix flake:

cd erlings/sequential/install && nix develop

This will drop you into a bare-bones bash shell with erlang and rebar installed, which you can use for the exercises.

Checking environment

To check your environment do the following:

$> git clone https://github.com/lambdaclass/erlings.git
$> cd ~/erlings/sequential/installing
$> make

You should get the following output:

rebar3 ct
===> Verifying dependencies...
===> Analyzing applications...
===> Compiling installing
===> Running Common Test suites...
%%% installing_SUITE: .
All 1 tests passed.