add an option to use google-c-style

layers/+lang/c-c++/README.org

@@ -13,6 +13,7 @@
     - [[#clang-format][clang-format]]
     - [[#company-clang-and-flycheck][Company-clang and flycheck]]
   - [[#cmake-configuration][CMake configuration]]
+  - [[#enable-google-set-c-style][Enable google-set-c-style]]
 - [[#key-bindings][Key Bindings]]
   - [[#debugger-realgud][Debugger (realgud)]]
 
@@ -134,6 +135,36 @@ build your project with ~SPC c c~ key binding.
        (helm-make-arguments . "-j7"))))
 #+END_SRC
 
+** Enable google-set-c-style
+If you have clang enabled with =clang-format= as described earlier in this page
+you may not have a lot of neeed for =google-set-c-style= if you are already
+using a mode based on Google mode for most of your projects.
+
+However, if you don't have (or want) =clang-format=, or if you have to do a lot
+[[https://www.emacswiki.org/emacs/TrampMode][Tramp]] remote editing on systems that don't have =clang-format= installed, you
+may want =google-c-style= enabled and added to your common hooks.
+
+To get =google-c-style= actually install itself into your C/C++ common hooks,
+you need to have =c-c++-enable-google-style= defined to true when you load the
+C-C++ lang in Spacemacs. In your =~/.spacemacs= file, a possible way that this
+would look is that in your list of =dostpacemacs-configuration-layers= you have
+an entry like
+
+#+BEGIN_SRC emacs-lisp
+     (c-c++ :variables
+            c-c++-enable-google-style t)
+#+END_SRC emacs-lisp
+
+Additionally, if you have =c-c++-enable-google-newline= variable set then
+=`google-make-newline-indent= will be set as a =c-mode-common-hook=. You would
+set that up like this:
+
+#+BEGIN_SRC emacs-lisp
+     (c-c++ :variables
+            c-c++-enable-google-style t
+            c-c++-enable-google-newline t)
+#+END_SRC emacs-lisp
+
 * Key Bindings
 
 | Key Binding | Description                                                             |

layers/+lang/c-c++/config.el

@@ -20,6 +20,14 @@
 (defvar c-c++-enable-clang-support nil
   "If non nil Clang related packages and configuration are enabled.")
 
+(defvar c-c++-enable-google-style nil
+  "If non-nil `google-set-c-style' will be added as as
+  `c-mode-common-hook'.")
+
+(defvar c-c++-enable-google-newline nil
+  "If non-nil `google-make-newline-indent' will be added as as
+  `c-mode-common-hook'.")
+
 (defvar c-c++-enable-cmake-ide-support nil
   "If non nil CMake related packages and configuration are enabled.")
 

layers/+lang/c-c++/packages.el

@@ -23,6 +23,7 @@
     gdb-mi
     ggtags
     counsel-gtags
+    google-c-style
     helm-cscope
     helm-gtags
     realgud
@@ -157,6 +158,13 @@
         "q" 'realgud:cmd-quit
         "S" 'realgud-window-cmd-undisturb-src))))
 
+(defun c-c++/init-google-c-style ()
+  (use-package google-c-style
+    :if (or 'c-c++-enable-google-style 'c-c++-enable-google-newline)
+    :config (progn
+    (when 'c-c++-enable-google-style (add-hook 'c-mode-common-hook 'google-set-c-style))
+    (when 'c-c++-enable-google-newline (add-hook 'c-mode-common-hook 'google-set-c-style)))))
+
 (defun c-c++/post-init-semantic ()
   (spacemacs/add-to-hooks 'semantic-mode c-c++-mode-hooks))