[Fix #361] Load chruby when found

modules/ruby/README.md

@@ -8,7 +8,7 @@ Local Gem Installation
 ----------------------
 
 When a Ruby version manager is not detected, local gems are installed in
-*~/Library/Ruby/Gems/1.8* on Mac OS X.
+*~/.gems*; otherwise, they are installed according to the manager.
 
 RVM
 ---
@@ -23,12 +23,27 @@ may conflict with shell scripts.
 rbenv
 -----
 
-An alternative RVM is to use [rbenv][3], which allows for switching between multiple,
-isolated Ruby installations in the home directory.
+An alternative RVM is to use [rbenv][3], which allows for switching between
+multiple, isolated Ruby installations in the home directory.
 
 While it is not as feature rich as RVM, it is not loaded into the shell and is
 not known to cause conflicts with shell scripts.
 
+chruby
+------
+
+Yet another alternative is [chruby][6], which is simpler than both RVM and
+rbenv.
+
+### Settings
+
+#### Auto-Switch
+
+To enable auto switching the Ruby version on directory change based on the
+.ruby-version file, add the following line to *zpreztorc*:
+
+    zstyle ':prezto:module:ruby:chruby' auto-switch 'yes'
+
 Bundler
 -------
 
@@ -87,4 +102,4 @@ Authors
 [3]: https://github.com/sstephenson/rbenv
 [4]: http://gembundler.com
 [5]: https://github.com/sorin-ionescu/prezto/issues
-
+[6]: https://github.com/postmodern/chruby

modules/ruby/functions/ruby-info

@@ -18,6 +18,8 @@ if (( $+commands[rvm-prompt] )); then
   version="$(rvm-prompt)"
 elif (( $+commands[rbenv] )); then
   version="$(rbenv version-name)"
+elif (( $+commands[ruby] )); then
+  version="${${$(ruby --version)[(w)1,(w)2]}/ /-}"
 fi
 
 # Format version.

modules/ruby/init.zsh

@@ -23,6 +23,13 @@ elif [[ -s "$HOME/.rbenv/bin/rbenv" ]]; then
 elif (( $+commands[rbenv] )); then
   eval "$(rbenv init - --no-rehash zsh)"
 
+# Load package manager installed chruby into the shell session.
+elif (( $+commands[chruby-exec] )); then
+  source "${commands[chruby-exec]:h:h}/share/chruby/chruby.sh"
+  if zstyle -t ':prezto:module:ruby:chruby' auto-switch; then
+    source "${commands[chruby-exec]:h:h}/share/chruby/auto.sh"
+  fi
+
 # Prepend local gems bin directories to PATH.
 else
   path=($HOME/.gem/ruby/*/bin(N) $path)

runcoms/zpreztorc

@@ -87,6 +87,13 @@ zstyle ':prezto:module:editor' key-bindings 'emacs'
 # Auto set to 'off' on dumb terminals.
 zstyle ':prezto:module:prompt' theme 'sorin'
 
+#
+# Ruby
+#
+
+# Auto switch the Ruby version on directory change.
+# zstyle ':prezto:module:ruby:chruby' auto-switch 'yes'
+
 #
 # Screen
 #