commit da2b5fa1f76d98d6656d77196f54c23358d231cc
Author: Tim Chambers <tbc@alum.mit.edu>
Date:   Sat Jun 11 23:13:40 2016 -0600

    * lisp/generic-x.el (ansible-inventory-generic-mode): New mode. (generic-unix-modes): Add it.

diff --git a/lisp/generic-x.el b/lisp/generic-x.el
index 71ba1f7..bd0d831 100644
--- a/lisp/generic-x.el
+++ b/lisp/generic-x.el
@@ -215,6 +215,7 @@ generic-mswindows-modes
 
 (defconst generic-unix-modes
   '(alias-generic-mode
+    ansible-inventory-generic-mode
     etc-fstab-generic-mode
     etc-modules-conf-generic-mode
     etc-passwd-generic-mode
@@ -646,6 +647,26 @@ alias-generic-mode
 	    '((nil "^\\(alias\\|unalias\\)\\s-+\\([-a-zA-Z0-9_]+\\)" 2))))))
   "Generic mode for C Shell alias files."))
 
+;; Ansible inventory files
+(when (memq 'ansible-inventory-generic-mode generic-extras-enable-list)
+
+(define-generic-mode ansible-inventory-generic-mode
+  '(?#)
+  nil
+  '(("^\\s-*\\(\\[.*\\]\\)" 1 font-lock-constant-face)
+    ("^\\s-*\\([^ \n\r]*\\)" 1 font-lock-function-name-face)
+    ("\\([^ =\n\r]+\\)=\\([^ \n\r]*\\)"
+     (1 font-lock-variable-name-face)
+     (2 font-lock-keyword-face)))
+  '("inventory")
+  (list
+   (function
+    (lambda ()
+      (setq imenu-generic-expression
+	    '((nil "^\\s-*\\[\\(.*\\)\\]" 1)
+	      ("*Variables*" "\\s-+\\([^ =\n\r]+\\)=" 1))))))
+  "Generic mode for Ansible inventory files."))
+
 ;;; Windows RC files
 ;; Contributed by ACorreir@pervasive-sw.com (Alfred Correira)
 (when (memq 'rc-generic-mode generic-extras-enable-list)