#!/usr/bin/env bash
set -e
[ -n "$RBENV_DEBUG" ] && set -x

resolve_link() {
  $(type -p greadlink readlink | head -1) $1
}

abs_dirname() {
  local cwd="$(pwd)"
  local path="$1"

  while [ -n "$path" ]; do
    cd "${path%/*}"
    local name="${path##*/}"
    path="$(resolve_link "$name" || true)"
  done

  pwd
  cd "$cwd"
}

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


export RBENV_HOOK_PATH="${RBENV_HOOK_PATH}:${RBENV_ROOT}/rbenv.d:/usr/local/etc/rbenv.d:/etc/rbenv.d"


shopt -s nullglob
rbenv_path="$(abs_dirname "$0")"
for plugin_bin in "${RBENV_ROOT}/plugins/"*/bin; do
  rbenv_path="${rbenv_path}:${plugin_bin}"
done
shopt -u nullglob

export PATH="${rbenv_path}:${PATH}"


command="$1"
case "$command" in
"" | "-h" | "--help" )
  echo -e "rbenv 0.2.0-pre\n$(rbenv-help)" >&2
  ;;
* )
  command_path="$(command -v "rbenv-$command" || true)"
  if [ -z "$command_path" ]; then
    echo "rbenv: no such command \`$command'" >&2
    exit 1
  fi

  shift 1
  exec "$command_path" "$@"
  ;;
esac