1#!/usr/bin/env bash
2# Summary: Show the current Ruby version
3set -e
4[ -n "$RBENV_DEBUG" ] && set -x
5
6if [ -z "$RBENV_VERSION" ]; then
7  RBENV_VERSION_FILE="$(rbenv-version-file)"
8  RBENV_VERSION="$(rbenv-version-file-read "$RBENV_VERSION_FILE" || true)"
9fi
10
11OLDIFS="$IFS"
12IFS=$'\n' scripts=(`rbenv-hooks version-name`)
13IFS="$OLDIFS"
14for script in "${scripts[@]}"; do
15  source "$script"
16done
17
18if [ -z "$RBENV_VERSION" ] || [ "$RBENV_VERSION" = "system" ]; then
19  echo "system"
20  exit
21fi
22
23version_exists() {
24  local version="$1"
25  [ -d "${RBENV_ROOT}/versions/${version}" ]
26}
27
28if version_exists "$RBENV_VERSION"; then
29  echo "$RBENV_VERSION"
30elif version_exists "${RBENV_VERSION#ruby-}"; then
31  echo "${RBENV_VERSION#ruby-}"
32else
33  echo "rbenv: version \`$RBENV_VERSION' is not installed (set by $(rbenv-version-origin))" >&2
34  exit 1
35fi
36