#!/bin/sh
if [ $# -gt 0 ] && ([ "$1" = "--help" ] || [ "$1" = "-h" ]); then
  echo "Usage: `basename $0` [options] [.exs file] [data]

  -v                Prints version
  -e \"command\"      Evaluates the given command (*)
  -r \"file\"         Requires the given files/patterns (*)
  -S \"script\"       Finds and executes the given script
  -pr \"file\"        Requires the given files/patterns in parallel (*)
  -pa \"path\"        Prepends the given path to Erlang code path (*)
  -pz \"path\"        Appends the given path to Erlang code path (*)
  --app \"app\"       Start the given app and its dependencies (*)
  --erl \"switches\"  Switches to be passed down to Erlang (*)
  --name \"name\"     Makes and assigns a name to the distributed node
  --sname \"name\"    Makes and assigns a short name to the distributed node
  --cookie \"cookie\" Sets a cookie for this distributed node
  --hidden          Makes a hidden node
  --werl            Uses Erlang's Windows shell GUI (Windows only)
  --detached        Starts the Erlang VM detached from console
  --remsh \"name\"    Connects to a node using a remote shell
  --dot-iex \"path\"  Overrides default .iex.exs file and uses path instead;
                    path can be empty, then no file will be loaded

** Options marked with (*) can be given more than once
** Options given after the .exs file or -- are passed down to the executed code
** Options can be passed to the VM using ELIXIR_ERL_OPTIONS or --erl" >&2
  exit 1
fi

readlink_f () {
  cd "$(dirname "$1")" > /dev/null
  filename="$(basename "$1")"
  if [ -h "$filename" ]; then
    readlink_f "$(readlink "$filename")"
  else
    echo "`pwd -P`/$filename"
  fi
}

SELF=$(readlink_f "$0")
SCRIPT_PATH=$(dirname "$SELF")
exec "$SCRIPT_PATH"/elixir --no-halt --erl "-user Elixir.IEx.CLI" +iex "$@"