From 41d438b47e8ee83a66705f6c04106662e6ea922f Mon Sep 17 00:00:00 2001
From: Vicent Marti <tanoku@gmail.com>
Date: Fri, 25 Sep 2015 08:35:34 -0700
Subject: [PATCH] repository: Do not attempt to scan large repos

---
 lib/linguist/repository.rb | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/linguist/repository.rb b/lib/linguist/repository.rb
index 01e595da..51040734 100644
--- a/lib/linguist/repository.rb
+++ b/lib/linguist/repository.rb
@@ -126,12 +126,13 @@ module Linguist
     end
 
     protected
+    MAX_TREE_SIZE = 100_000
 
     def compute_stats(old_commit_oid, cache = nil)
+      return {} if current_tree.count_recursive(MAX_TREE_SIZE) >= MAX_TREE_SIZE
+
       old_tree = old_commit_oid && Rugged::Commit.lookup(repository, old_commit_oid).tree
-
       read_index
-
       diff = Rugged::Tree.diff(repository, old_tree, current_tree)
 
       # Clear file map and fetch full diff if any .gitattributes files are changed