#!/usr/bin/env bash
set -e

# Provide rbenv completions
if [ "$1" = "--complete" ]; then
  exec rbenv versions --bare
fi

if [ -z "$RBENV_ROOT" ]; then
  RBENV_ROOT="${HOME}/.rbenv"
fi

unset FORCE
if [ "$1" = "-f" ]; then
  FORCE=true
  shift
fi

DEFINITION="$1"
case "$DEFINITION" in
"" | -* )
  { echo "usage: rbenv uninstall [-f] VERSION"
    echo
    echo "   -f  Attempt to remove the specified version without prompting"
    echo "       for confirmation. If the version does not exist, do not"
    echo "       display an error message."
    echo
    echo "Installed versions:"
    rbenv versions --bare | sed 's/^/  /'
    echo
  } >&2
  exit 1
  ;;
esac

VERSION_NAME="${DEFINITION##*/}"
PREFIX="${RBENV_ROOT}/versions/${VERSION_NAME}"

if [ -z "$FORCE" ]; then
  if [ ! -d "$PREFIX" ]; then
    echo "rbenv: version \`$VERSION_NAME' not installed" >&2
    exit 1
  fi

  read -p "rbenv: remove $PREFIX? "
  case "$REPLY" in
  y* | Y* ) ;;
  * ) exit 1 ;;
  esac
fi

if [ -d "$PREFIX" ]; then
  rm -rf "$PREFIX"
  rbenv rehash
fi