#!/bin/sh

if [ -z "$1" ]; then
  echo "Please specify one of the following Ruby versions to use:" >&2
  echo "" >&2
  echo "$(rbenv-versions)" >&2
  exit 1
fi

version=$1

if [ -d "$HOME/.rbenv/versions/$version" ]; then
  echo "export RBENV_VERSION=$version"
else
  echo "rbenv: version \`$version' is not installed" >&2
fi