added basic customization support

init.el

@@ -33,6 +33,10 @@
 
 ;;; Code:
 
+(defgroup prelude nil
+  "Emacs Prelude"
+  :group 'convenience)
+
 ;; On OS X Emacs doesn't use the shell PATH if it's not started from
 ;; the shell. If you're using homebrew modifying the PATH is essential.
 (if (string= system-type "darwin")

modules/prelude-c.el

@@ -32,13 +32,24 @@
 
 ;;; Code:
 
+;; customize
+(defgroup c nil
+  "Emacs Prelude C programming support"
+  :group 'prelude)
+
+(defcustom prelude-enable-c-hook t
+  "Enable Prelude's default C hook."
+  :type 'boolean
+  :group 'c)
+
 (defun prelude-c-coding-hook ()
   (setq c-basic-offset 4)
   (prelude-coding-hook))
 
+(when prelude-enable-c-hook
   ;; this will affect all modes derived from cc-mode, like
   ;; java-mode, php-mode, etc
-(add-hook 'c-mode-common-hook 'prelude-c-coding-hook)
+  (add-hook 'c-mode-common-hook 'prelude-c-coding-hook))
 
 (provide 'prelude-c)
 

modules/prelude-clojure.el

@@ -32,6 +32,16 @@
 
 ;;; Code:
 
+;; customize
+(defgroup clojure nil
+  "Emacs Prelude Clojure programming support"
+  :group 'prelude)
+
+(defcustom prelude-enable-clojure-hook t
+  "Enable Prelude's Clojure hook."
+  :type 'boolean
+  :group 'clojure)
+
 (require 'prelude-lisp)
 
 ;; To start SLIME in your Clojure project:
@@ -39,7 +49,8 @@
 ;; 2. Invoke M-x clojure-jack-in from a project
 (require 'clojure-mode)
 
-(add-hook 'clojure-mode-hook 'prelude-lisp-coding-hook)
+(when prelude-enable-clojure-hook
+  (add-hook 'clojure-mode-hook 'prelude-lisp-coding-hook))
 
 (provide 'prelude-clojure)
 

modules/prelude-coffee.el

@@ -32,6 +32,15 @@
 
 ;;; Code:
 
+(defgroup coffee nil
+  "Emacs Prelude CoffeeScript support"
+  :group 'prelude)
+
+(defcustom prelude-enable-coffee-hook t
+  "Enable Prelude's CoffeeScript's hook"
+  :type 'boolean
+  :group 'coffee)
+
 (require 'coffee-mode)
 
 (defun prelude-coffee-mode-hook ()
@@ -64,7 +73,8 @@
        (file-exists-p (coffee-compiled-file-name))
        (coffee-cos-mode t)))
 
-(add-hook 'coffee-mode-hook 'prelude-coffee-mode-hook)
+(when prelude-enable-coffee-hook
+ (add-hook 'coffee-mode-hook 'prelude-coffee-mode-hook))
 
 (provide 'prelude-coffee)
 

modules/prelude-common-lisp.el

@@ -32,6 +32,27 @@
 
 ;;; Code:
 
+(defgroup common-lisp nil
+  "Prelude's Common Lisp support"
+  :group 'prelude)
+
+(defcustom prelude-start-slime-automatically t
+  "Start SLIME automatically the first time a .list file is opened."
+  :type 'boolean
+  :group 'common-lisp)
+
+(defcustom prelude-enable-common-lisp-hook t
+  "Enable Prelude's Common Lisp hook"
+  :type 'boolean
+  :group 'common-lisp)
+
+(defcustom prelude-load-common-lisp-slime-automatically nil
+  "Load Common Lisp's SLIME by default. Setting this to `t' is not a
+very good idea if you're programming on occasion in both Clojure and
+Common Lisp."
+  :type 'boolean
+  :group 'common-lisp)
+
 (require 'prelude-lisp)
 
 ;; the SBCL configuration file is in Common Lisp
@@ -43,8 +64,7 @@
   ;; Common Lisp support depends on SLIME being installed with Quicklisp
   (if (file-exists-p (expand-file-name "~/quicklisp/slime-helper.el"))
       (load (expand-file-name "~/quicklisp/slime-helper.el"))
-    (message "%s" "SLIME is not installed. Use Quicklisp to install it."))
-  )
+    (message "%s" "SLIME is not installed. Use Quicklisp to install it.")))
 
 ;; a list of alternative Common Lisp implementations that can be
 ;; used with SLIME. Note that their presence render
@@ -58,17 +78,23 @@
         (sbcl ("sbcl" "--noinform") :coding-system utf-8-unix)))
 
 ;; select the default value from slime-lisp-implementations
-(setq slime-default-lisp 'sbcl)
+(if (string= system-type "darwin")
+    ;; default to Clozure CL on OS X
+    (setq slime-default-lisp 'ccl)
+  ;; default to SBCL on Linux and Windows
+  (setq slime-default-lisp 'sbcl))
 
+(when prelude-enable-common-lisp-hook
   (add-hook 'lisp-mode-hook 'prelude-lisp-coding-hook)
-(add-hook 'slime-repl-mode-hook 'prelude-interactive-lisp-coding-hook)
+  (add-hook 'slime-repl-mode-hook 'prelude-interactive-lisp-coding-hook))
 
 ;; start slime automatically when we open a lisp file
 (defun prelude-start-slime ()
   (unless (slime-connected-p)
     (save-excursion (slime))))
 
-(add-hook 'slime-mode-hook 'prelude-start-slime)
+(when prelude-start-slime-automatically
+  (add-hook 'slime-mode-hook 'prelude-start-slime))
 
 ;; Stop SLIME's REPL from grabbing DEL,
 ;; which is annoying when backspacing over a '('

modules/prelude-core.el

@@ -36,6 +36,11 @@
 (require 'thingatpt)
 (require 'imenu)
 
+;; customization
+(defgroup core nil
+  "Emacs Prelude core"
+  :group 'prelude)
+
 (defun prelude-add-subfolders-to-load-path (parent-dir)
   "Adds all first level `parent-dir' subdirs to the
 Emacs load path."

modules/prelude-editor.el

@@ -32,6 +32,11 @@
 
 ;;; Code:
 
+;; customize
+(defgroup editor nil
+  "Emacs Prelude Editor enhancements"
+  :group 'prelude)
+
 ;; Emacs users obviously have little need for Command and Option keys,
 ;; but they do need Meta and Super
 (when (string= system-type "darwin")
@@ -160,6 +165,10 @@
 (require 'yasnippet) ;; not yasnippet-bundle
 (yas/initialize)
 
+;; dispense of trailing whitespace once and for all
+(add-hook 'before-save-hook
+          'delete-trailing-whitespace)
+
 ;; projectile is a project management mode
 (require 'projectile)
 (projectile-global-mode t)

modules/prelude-emacs-lisp.el

@@ -32,16 +32,16 @@
 
 ;;; Code:
 
+(defgroup emacs-lisp nil
+  "Prelude support for Emacs Lisp"
+  :group 'prelude)
 
-(require 'prelude-lisp)
-
-(add-hook 'emacs-lisp-mode-hook 'turn-on-eldoc-mode)
-(add-hook 'emacs-lisp-mode-hook 'prelude-remove-elc-on-save)
+(defcustom prelude-enable-emacs-lisp-hook t
+  "Enable Prelude's Emacs Lisp hook"
+  :type 'boolean
+  :group 'emacs-lisp)
 
-(add-hook 'emacs-lisp-mode-hook 'prelude-lisp-coding-hook)
-
-(add-hook 'ielm-mode-hook 'prelude-interactive-lisp-coding-hook)
-(add-hook 'ielm-mode-hook 'turn-on-eldoc-mode)
+(require 'prelude-lisp)
 
 (defun prelude-remove-elc-on-save ()
   "If you're saving an elisp file, likely the .elc is no longer valid."
@@ -51,6 +51,15 @@
               (if (file-exists-p (concat buffer-file-name "c"))
                   (delete-file (concat buffer-file-name "c"))))))
 
+(when prelude-enable-emacs-lisp-hook
+  (add-hook 'emacs-lisp-mode-hook 'turn-on-eldoc-mode)
+  (add-hook 'emacs-lisp-mode-hook 'prelude-remove-elc-on-save)
+
+  (add-hook 'emacs-lisp-mode-hook 'prelude-lisp-coding-hook)
+
+  (add-hook 'ielm-mode-hook 'prelude-interactive-lisp-coding-hook)
+  (add-hook 'ielm-mode-hook 'turn-on-eldoc-mode))
+
 (define-key emacs-lisp-mode-map (kbd "M-.") 'find-function-at-point)
 
 (provide 'prelude-emacs-lisp)

modules/prelude-global-keybindings.el

@@ -32,6 +32,17 @@
 
 ;;; Code:
 
+(defcustom prelude-enable-additional-keybindings t
+  "Enable Prelude additional global keybindings"
+  :type 'boolean
+  :group 'prelude)
+
+(defcustom prelude-disable-arrow-navigation t
+  "Disable arrow navigation"
+  :type 'boolean
+  :group 'prelude)
+
+(when prelude-enable-additional-keybindings
   ;; You know, like Readline.
   (global-set-key (kbd "C-M-h") 'backward-kill-word)
 
@@ -131,8 +142,9 @@
   (global-set-key (kbd "C-c g") 'prelude-google)
 
   ;; toggle menu-bar visibility
-(global-set-key (kbd "<f12>") 'menu-bar-mode)
+  (global-set-key (kbd "<f12>") 'menu-bar-mode))
 
+(when prelude-disable-arrow-navigation
   ;; real Emacs hackers don't use the arrow keys
   (global-set-key (kbd "<up>") (lambda ()
                                  (interactive)
@@ -145,7 +157,7 @@
                                    (message "Arrow key navigation is disabled. Use C-b instead.")))
   (global-set-key (kbd "<right>") (lambda ()
                                     (interactive)
-                                  (message "Arrow key navigation is disabled. Use C-f instead.")))
+                                    (message "Arrow key navigation is disabled. Use C-f instead."))))
 
 (provide 'prelude-global-keybindings)
 

modules/prelude-perl.el

@@ -32,6 +32,15 @@
 
 ;;; Code:
 
+(defgroup perl nil
+  "Emacs Prelude Perl support."
+  :group 'prelude)
+
+(defcustom prelude-enable-perl-hook t
+  "Enable Prelude's Perl hook"
+  :type 'boolean
+  :group 'perl)
+
 ;; use cperl-mode instead of perl-mode
 (defalias 'perl-mode 'cperl-mode)
 
@@ -56,7 +65,8 @@
   (set-face-background 'cperl-hash-face nil)
   (setq cperl-invalid-face nil))
 
-(add-hook 'cperl-mode-hook 'prelude-cperl-mode-hook t)
+(when prelude-enable-perl-hook
+ (add-hook 'cperl-mode-hook 'prelude-cperl-mode-hook t))
 
 (provide 'prelude-perl)
 

modules/prelude-ruby.el

@@ -32,6 +32,15 @@
 
 ;;; Code:
 
+(defgroup ruby nil
+  "Emacs Prelude Ruby support"
+  :group 'prelude)
+
+(defcustom prelude-enable-ruby-hook t
+  "Enable Prelude's Ruby hook"
+  :type 'boolean
+  :group 'ruby)
+
 ;; Rake files are ruby, too, as are gemspecs, rackup files, and gemfiles.
 (add-to-list 'auto-mode-alist '("\\.rake$" . ruby-mode))
 (add-to-list 'auto-mode-alist '("Rakefile$" . ruby-mode))
@@ -63,7 +72,8 @@
   (ruby-block-mode t)
   (local-set-key (kbd "C-h r") 'yari))
 
-(add-hook 'ruby-mode-hook 'prelude-ruby-mode-hook)
+(when prelude-enable-ruby-hook
+ (add-hook 'ruby-mode-hook 'prelude-ruby-mode-hook))
 
 (require 'haml-mode)
 (require 'scss-mode)

modules/prelude-ui.el

@@ -33,6 +33,35 @@
 
 ;;; Code:
 
+;; customization
+(defgroup ui nil
+  "Emacs Prelude UI"
+  :group 'prelude)
+
+(defcustom prelude-use-minimalistic-ui t
+  "If set to true Prelude will dispense of most the UI that's mouse related - 
+menu bar, tool bar, etc"
+  :type 'boolean
+  :group 'ui)
+
+(defcustom prelude-use-smooth-scrolling t
+  "Overrides the default scrolling behavior with a much more common one."
+  :type 'boolean
+  :group 'ui)
+
+(defcustom prelude-use-default-prelude-theme t
+  "If set to true Prelude will load up its default theme (Zenburn),
+instead of Emacs's default theme."
+  :type 'boolean
+  :group 'ui)
+
+(defcustom prelude-enhance-modeline t
+  "If set to true Prelude will augment the default modeline settings."
+  :type 'boolean
+  :group 'ui)
+
+
+(when prelude-use-minimalistic-ui
  ;; the toolbar is just a waste of valuable screen estate
  (tool-bar-mode -1)
  ;; the menu bar is mostly useless as well
@@ -43,24 +72,29 @@
  (blink-cursor-mode -1)
 
  ;; disable startup screen
-(setq inhibit-startup-screen t)
+ (setq inhibit-startup-screen t))
 
+
+(when prelude-use-smooth-scrolling
  ;; nice scrolling
  (setq scroll-margin 0
        scroll-conservatively 100000
-      scroll-preserve-screen-position 1)
+       scroll-preserve-screen-position 1))
 
+(when prelude-enhance-modeline
  ;; mode line settings
  (line-number-mode t)
  (column-number-mode t)
-(size-indication-mode t)                
+ (size-indication-mode t))
 
 ;; enable y/n answers
 (fset 'yes-or-no-p 'y-or-n-p)
 
 ;; custom Emacs 24 color themes support
 (add-to-list 'custom-theme-load-path (concat prelude-dir "themes/"))
-(load-theme 'zenburn t)
+
+(when prelude-use-default-prelude-theme
+  (load-theme 'zenburn t))
 
 (provide 'prelude-ui)
 ;;; prelude-ui.el ends here