install elixir

install-elixir.sh

#!/bin/sh

# Install script for elixir by Peter van der Meulen

echo "Welcome to elixir install script";
echo "Please make sure you currently have no installation of elixir on your computer before running this script \n";
echo "This script will install:";
echo "-erlang via homebrew";
echo "-exenv (an rbenv flavor for elixir)";
echo "-elixir build 1.3";
echo "\nwould you like to continue? (Y/N)"
read INSTALLANSWER

if [[ $INSTALLANSWER =~ ^[Yy]$ ]]; then
  echo "Installing scripts";
else
  echo "Not installing scripts";
  exit 0;
fi

echo "Installing Erlang";
brew install erlang;
echo "----------------";
echo "Done";

if [ -d ~/.exenv ]; then
  echo 'You already have exenv installed';
  echo 'Attempting to update your exenv instead';
  git -C ~/.exenv pull
else
  echo "Cloning and installing exenv";
  git clone git://github.com/mururu/exenv.git .exenv;
  export PATH="$HOME/.exenv/bin:$PATH";
  eval "$(exenv init -)";
fi

if [ -d ~/.exenv/versions/1.3.2/ ]; then
  echo "you already have elixir 1.3.2 installed";
  exit 1;
else
  echo "downloading elixir 1.3";
  curl -LOk "https://github.com/elixir-lang/elixir/archive/v1.3.2.zip";

  echo "extracting elixir"
  unzip v1.3.2.zip;
  rm v1.3.2.zip;
  mv elixir-1.3.2/ ~/.exenv/versions/1.3.2/;

  echo "building elixir";
  make -C ~/.exenv/versions/1.3.2;

  echo "settting elixir";
  exenv global 1.3.2;
fi

echo "--------";
echo "--------";
echo "# First time instructions (no need to if you already did this)"
echo "# please add the lines below to your shell profile file and restart your console";
echo 'export PATH="$HOME/.exenv/bin:$PATH"';
echo 'eval "$(exenv init -)"';
echo "";
echo "--------";
echo "installation complete press [enter] exit";
exit 0;