lang/ruby: add +chruby (#2667)

Co-authored-by: Henrik Lissner <accounts@v0.io>

docs/modules.org

@@ -131,7 +131,7 @@ Modules that bring support for a language or group of languages to Emacs.
 + qt - TODO
 + racket - TODO
 + [[file:../modules/lang/rest/README.org][rest]] - TODO
-+ [[file:../modules/lang/ruby/README.org][ruby]] =+lsp +rvm +rbenv +rails=
++ [[file:../modules/lang/ruby/README.org][ruby]] =+lsp +rvm +rbenv +rails +chruby=
 + [[file:../modules/lang/rust/README.org][rust]] =+lsp= - TODO
 + scala =+lsp= - TODO
 + [[file:../modules/lang/scheme/README.org][scheme]] - TODO

modules/lang/ruby/README.org

@@ -5,7 +5,7 @@
 
 * Table of contents :TOC:
 - [[#description][Description]]
-  - [[#module-flags][Module Flags...]]
+  - [[#module-flags][Module Flags]]
   - [[#packages][Packages]]
 - [[#prerequisites][Prerequisites]]
   - [[#ubuntu][Ubuntu]]
@@ -23,12 +23,13 @@ This module add Ruby and optional Ruby on Rails support to Emacs.
 + Bundler
 + Rubocop integration (flycheck)
 
-** Module Flags...
+** Module Flags
 + =+lsp= Enables LangServer support for ruby. You must have =:tools lsp= enabled
   for this to work, as well as the langserver (solargraph) installed on your
   system.
 + =+rvm= Enables RVM (Ruby Version Manager) integration.
-+ =+rbenv= Eanbles rbenv integration.
++ =+rbenv= Enables rbenv integration.
++ =+chruby= Enables chruby integration.
 + =+rails= Enables rails navigational commands, plus server+console integration.
 
 ** Packages
@@ -45,6 +46,7 @@ This module add Ruby and optional Ruby on Rails support to Emacs.
 + [[https://github.com/arthurnn/minitest-emacs][minitest]]
 + [[https://github.com/asok/projectile-rails][projectile-rails]]
 + [[https://github.com/eschulte/jump.el/tree/e4f1372cf22e811faca52fc86bdd5d817498a4d8][inflections]]
++ [[https://github.com/plexus/chruby.el][chruby]]
 
 * Prerequisites
 Many of this modules plugins require ruby with some version manager (RVM or
@@ -62,7 +64,7 @@ You can follow [[https://gorails.com/setup/windows/10][this guide]]. After ruby
 *** robe
 | command              | key / ex command | description                                                        |
 |----------------------+------------------+--------------------------------------------------------------------|
-| ~robe-start~         | =SPC m '=        | Open ruby lang server for auto-completions and jump to definitions |
+| ~robe-start~         | =SPC m \'=       | Open ruby lang server for auto-completions and jump to definitions |
 | ~robe-rails-refresh~ | =SPC m R=        | Refresh the lang server.                                           |
 
 *** projectile-rails

modules/lang/ruby/config.el

@@ -119,6 +119,14 @@
         "e" #'bundle-exec
         "o" #'bundle-open))
 
+(use-package! chruby
+  :when (featurep! +chruby)
+  :hook (enh-ruby-mode . chruby-use-corresponding)
+  :hook (ruby-mode . chruby-use-corresponding)
+  :config
+  (setq rspec-use-rvm nil
+        rspec-use-chruby t))
+
 (after! rbenv
   (setq rspec-use-rvm nil)
   (add-to-list 'exec-path (expand-file-name "shims" rbenv-installation-dir)))

modules/lang/ruby/doctor.el

@@ -10,3 +10,7 @@
 (when (and (executable-find "rbenv") (featurep! +rbenv))
   (unless (split-string (shell-command-to-string "rbenv versions --bare") "\n" t)
     (warn! "No versions of ruby are available via rbenv, did you forget to install one?")))
+
+(when (and (executable-find "chruby") (featurep! +chruby))
+  (unless (split-string (shell-command-to-string "chruby") "\n" t)
+    (warn! "No versions of ruby are available via chruby, did you forget to install one?")))

modules/lang/ruby/packages.el

@@ -23,6 +23,8 @@
   (package! rbenv :pin "2ea1a5bdc1"))
 (when (featurep! +rvm)
   (package! rvm :pin "134497bc46"))
+(when (featurep! +chruby)
+  (package! chruby :pin "42bc6d521f"))
 
 ;; Testing frameworks
 (package! rspec-mode :pin "c4353a1bff")