From 9994ac3a0c50926c4f999e0e4bf985ca5754217f Mon Sep 17 00:00:00 2001
From: Aman Gupta <aman@tmm1.net>
Date: Wed, 23 Nov 2011 00:50:44 -0800
Subject: [PATCH] only load blobs to check for <?php header for specific drupal
 file extensions

---
 lib/linguist/blob_helper.rb | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/linguist/blob_helper.rb b/lib/linguist/blob_helper.rb
index 37d8597d..5820736a 100644
--- a/lib/linguist/blob_helper.rb
+++ b/lib/linguist/blob_helper.rb
@@ -135,6 +135,13 @@ module Linguist
       ['.png', '.jpg', '.jpeg', '.gif'].include?(extname)
     end
 
+    # Public: Is the blob a possible drupal php file?
+    #
+    # Return true or false
+    def drupal_extname?
+      ['.module', '.install', '.test', '.inc'].include?(extname)
+    end
+
     MEGABYTE = 1024 * 1024
 
     # Public: Is the blob too big to load?
@@ -512,10 +519,13 @@ module Linguist
 
     # Internal: Guess language from the first line.
     #
-    # Look for leading "<?php"
+    # Look for leading "<?php" in Drupal files
     #
     # Returns a Language.
     def first_line_language
+      # Only check files with drupal php extensions
+      return unless drupal_extname?
+
       # Fail fast if blob isn't viewable?
       return unless viewable?