rbenv.rb

require 'formula'

class Rbenv < Formula
  homepage 'https://github.com/sstephenson/rbenv'
  url 'https://github.com/sstephenson/rbenv/archive/v0.4.0.tar.gz'
  sha1 '825ceec55805b8bb80a6d6003fd3cef824d7ff14'

  head 'https://github.com/sstephenson/rbenv.git'

  def install
    inreplace 'libexec/rbenv', '/usr/local', HOMEBREW_PREFIX
    prefix.install Dir['*']
  end

  def caveats; <<-EOS.undent
    To use Homebrew's directories rather than ~/.rbenv add to your profile:
      export RBENV_ROOT=#{var}/rbenv

    To enable shims and autocompletion add to your profile:
      if which rbenv > /dev/null; then eval "$(rbenv init -)"; fi
    EOS
  end

  def patches
    # rbx-2.0.0 support
    DATA
  end
end
__END__
diff --git a/libexec/rbenv-rehash b/libexec/rbenv-rehash
index 5ec195e..2b6f46d 100755
--- a/libexec/rbenv-rehash
+++ b/libexec/rbenv-rehash
@@ -138,7 +138,7 @@ shopt -s nullglob
 # executables.
 create_prototype_shim
 remove_outdated_shims
-make_shims ../versions/*/bin/*
+make_shims ../versions/*/{,gems/}bin/*

 # Restore the previous working directory.
 cd "$OLDPWD"
diff --git a/libexec/rbenv-which b/libexec/rbenv-which
index 5d73673..b421a49 100755
--- a/libexec/rbenv-which
+++ b/libexec/rbenv-which
@@ -60,7 +60,11 @@ if [ "$RBENV_VERSION" = "system" ]; then
   PATH="$(remove_from_path "${RBENV_ROOT}/shims")"
   RBENV_COMMAND_PATH="$(command -v "$RBENV_COMMAND" || true)"
 else
-  RBENV_COMMAND_PATH="${RBENV_ROOT}/versions/${RBENV_VERSION}/bin/${RBENV_COMMAND}"
+  version_prefix="${RBENV_ROOT}/versions/${RBENV_VERSION}"
+  RBENV_COMMAND_PATH="${version_prefix}/gems/bin/${RBENV_COMMAND}"
+  if [ ! -x "$RBENV_COMMAND_PATH" ]; then
+    RBENV_COMMAND_PATH="${version_prefix}/bin/${RBENV_COMMAND}"
+  fi
 fi

 OLDIFS="$IFS"