Make the list of modules loaded by Prelude configurable.

Modules loaded by Prelude can now easily be adjusted via
the file `prelude-modules.el` in Prelude's installation folder.
To disable a module simply comment it out; conversely uncomment
a module to enable it.

.gitignore

@@ -15,3 +15,4 @@ custom.el
 places
 .smex-items
 savefile/
+/prelude-modules.el

README.md

@@ -46,6 +46,9 @@ Note that the installer will back up any existing `.emacs` file or
 you're doing a manual install make sure you don't have a `.emacs` file
 or back up your existing `.emacs.d` directory manually.
 
+Don't forget to adjust your `prelude-modules.el` file once the installation is done.
+By default most of the modules that ship with Prelude are not loaded.
+
 ## Installing Emacs 24
 
 Obviously to use the Emacs Prelude you have to install Emacs 24
@@ -86,6 +89,39 @@ You'd do well to replace `~/.emacs.d` with the value of
 `user-emacs-directory` for your OS. You can check the value by doing
 `C-h v user-emacs-directory` inside Emacs.
 
+## Enabling additional modules
+
+By default most of the modules that ship with Prelude are not loaded.
+
+```lisp
+;;; Uncomment the modules you'd like to use and restart Prelude afterwards
+
+(require 'prelude-c)
+;; (require 'prelude-clojure)
+;; (require 'prelude-coffee)
+;; (require 'prelude-common-lisp)
+;; (require 'prelude-css)
+(require 'prelude-emacs-lisp)
+(require 'prelude-erc)
+;; (require 'prelude-erlang)
+;; (require 'prelude-haskell)
+(require 'prelude-js)
+;; (require 'prelude-latex)
+(require 'prelude-lisp)
+;; (require 'prelude-markdown)
+;; (require 'prelude-mediawiki)
+(require 'prelude-org)
+(require 'prelude-perl)
+;; (require 'prelude-python)
+;; (require 'prelude-ruby)
+;; (require 'prelude-scala)
+(require 'prelude-scheme)
+;; (require 'prelude-scss)
+(require 'prelude-xml)
+```
+
+You'll need to adjust your `prelude-modules.el` file once the installation is done.
+
 ## Running
 
 Nothing fancy here. Just start Emacs as usual. Personally I run Emacs

init.el

@@ -54,6 +54,8 @@ ELPA (or MELPA).")
   "This folder houses additional yasnippet bundles added by the users.")
 (defvar prelude-savefile-dir (expand-file-name "savefile" prelude-dir)
   "This folder stores all the automatically generated save/history-files.")
+(defvar prelude-modules-file (expand-file-name "prelude-modules.el" prelude-dir)
+  "This files contains a list of modules that will be loaded by Prelude.")
 
 (unless (file-exists-p prelude-savefile-dir)
   (make-directory prelude-savefile-dir))
@@ -90,28 +92,9 @@ Emacs load path."
 
 ;; the modules
 (require 'prelude-programming)
-(require 'prelude-c)
-(require 'prelude-clojure)
-(require 'prelude-coffee)
-(require 'prelude-common-lisp)
-(require 'prelude-css)
-(require 'prelude-emacs-lisp)
-(require 'prelude-erc)
-(require 'prelude-erlang)
-(require 'prelude-haskell)
-(require 'prelude-js)
-(require 'prelude-latex)
-(require 'prelude-lisp)
-(require 'prelude-markdown)
-(require 'prelude-mediawiki)
-(require 'prelude-org)
-(require 'prelude-perl)
-(require 'prelude-python)
-(require 'prelude-ruby)
-(require 'prelude-scala)
-(require 'prelude-scheme)
-(require 'prelude-scss)
-(require 'prelude-xml)
+
+(when (file-exists-p prelude-modules-file)
+  (load prelude-modules-file))
 
 ;; config changes made through the customize UI will be store here
 (setq custom-file (expand-file-name "custom.el" prelude-personal-dir))

sample/prelude-modules.el

@@ -0,0 +1,24 @@
+;;; Uncomment the modules you'd like to use and restart Prelude afterwards
+
+(require 'prelude-c)
+;; (require 'prelude-clojure)
+;; (require 'prelude-coffee)
+;; (require 'prelude-common-lisp)
+;; (require 'prelude-css)
+(require 'prelude-emacs-lisp)
+(require 'prelude-erc)
+;; (require 'prelude-erlang)
+;; (require 'prelude-haskell)
+(require 'prelude-js)
+;; (require 'prelude-latex)
+(require 'prelude-lisp)
+;; (require 'prelude-markdown)
+;; (require 'prelude-mediawiki)
+(require 'prelude-org)
+(require 'prelude-perl)
+;; (require 'prelude-python)
+;; (require 'prelude-ruby)
+;; (require 'prelude-scala)
+(require 'prelude-scheme)
+;; (require 'prelude-scss)
+(require 'prelude-xml)

utils/installer.sh

@@ -207,6 +207,7 @@ else
     # Nothing yet so just install prelude
     install_prelude
     make_prelude_dirs
+    cp $PRELUDE_INSTALL_DIR/sample/prelude-modules.el $PRELUDE_INSTALL_DIR
 fi
 
 if [ -z $PRELUDE_SKIP_BC ];
@@ -216,9 +217,9 @@ then
         printf " Bytecompiling Prelude.\n"
         if [ x$PRELUDE_VERBOSE != x ]
         then
-            emacs -batch -f batch-byte-compile $PRELUDE_INSTALL_DIR/prelude/*.el
+            emacs -batch -f batch-byte-compile $PRELUDE_INSTALL_DIR/core/*.el
         else
-            emacs -batch -f batch-byte-compile $PRELUDE_INSTALL_DIR/prelude/*.el > /dev/null 2>&1
+            emacs -batch -f batch-byte-compile $PRELUDE_INSTALL_DIR/core/*.el > /dev/null 2>&1
         fi
     else
         printf "$YELLOW Emacs not found.$RESET Skipping bytecompilation.\n"
@@ -242,3 +243,4 @@ printf "$BBLUE | |_) |  __/ _ \ | | | |/ _  |/ _ \ \n"
 printf "$BBLUE |  __/| | |  __/ | |_| | (_| |  __/ \n"
 printf "$BBLUE |_|   |_|  \___|_|\__,_|\__,_|\___| \n\n"
 printf "$GREEN ... is now installed and ready to do thy bidding, Master $USER!$RESET\n"
+printf "$GREEN Don't forget to adjust the modules you want to use in $PRELUDE_INSTALL_DIR/prelude-modules.el!$RESET\n"