Colorize compilation buffers

emacs/.emacs.d/init.el

@@ -1091,6 +1091,7 @@ If no direction is given, don't split."
 (add-hook 'ruby-mode-hook 'robe-mode)
 (add-hook 'projectile-after-switch-project-hook #'oni:select-corresponding-ruby)
 (add-hook 'prog-mode-hook 'highlight-numbers-mode)
+(add-hook 'compilation-filter-hook 'colorize-compilation-buffer)
 
 (oni:add-function-to-hooks #'oni:make-readable
   'Info-mode-hook 'gnus-article-mode-hook 'gnus-group-mode-hook

emacs/.emacs.d/site-lisp/colorize-compilation.el

@@ -0,0 +1,39 @@
+;;; colorize-compilation.el --- Colorize compilation buffers  -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2015  Tom Willemse
+
+;; Author: Tom Willemse <tom@ryuslash.org>
+;; Keywords:
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; Colorize compilation buffers with ansi escape codes. This code was
+;; copied from the following StackOverflow answer:
+;; http://stackoverflow.com/a/13408008
+
+;;; Code:
+
+(require 'ansi-color)
+(require 'compile)
+
+;;;###autoload
+(defun colorize-compilation-buffer ()
+  "Change ansi color escape codes into color faces."
+  (let ((inhibit-read-only t))
+    (ansi-color-apply-on-region compilation-filter-start (point))))
+
+(provide 'colorize-compilation)
+;;; colorize-compilation.el ends here