rbenv --version

libexec/rbenv

@@ -60,7 +60,10 @@ shopt -u nullglob
 command="$1"
 case "$command" in
 "" | "-h" | "--help" )
-  echo -e "rbenv 0.3.0\n$(rbenv-help)" >&2
+  echo -e "rbenv $(rbenv---version)\n$(rbenv-help)" >&2
+  ;;
+"-v" )
+  exec rbenv---version
   ;;
 * )
   command_path="$(command -v "rbenv-$command" || true)"

libexec/rbenv---version

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -e
+[ -n "$RBENV_DEBUG" ] && set -x
+
+version=v0.3.0
+
+cd "$RBENV_ROOT"
+git_revision="$(git describe --tags HEAD 2>/dev/null || true)"
+
+echo ${git_revision:-$version}