From 36f60d5bce9bac735b2f6d53f5ace582b2fd0f97 Mon Sep 17 00:00:00 2001
From: Brian Gough <bjg@network-theory.co.uk>
Date: Tue, 31 Mar 2015 10:07:39 +0100
Subject: [PATCH] enforce minimum size of 1k for compression

---
 services/document-updater/app/coffee/ZipManager.coffee | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/services/document-updater/app/coffee/ZipManager.coffee b/services/document-updater/app/coffee/ZipManager.coffee
index 6011fee659..18482a5c69 100644
--- a/services/document-updater/app/coffee/ZipManager.coffee
+++ b/services/document-updater/app/coffee/ZipManager.coffee
@@ -60,7 +60,8 @@ module.exports = ZipManager =
 			callback(null, result)
 
 	compressIfNeeded: (doc_id, text, callback) ->
-		if ZIP_WRITES_ENABLED && ZIP_MINSIZE > 0 and text.length > ZIP_MINSIZE
+		if ZIP_WRITES_ENABLED and ZIP_MINSIZE > 1024 and text.length > ZIP_MINSIZE
+			# N.B. skip files of 1k or less, because gzip increases the size
 			zlib.gzip text, (err, buf) ->
 				if err?
 					logger.err doc_id:doc_id, err:err, "error compressing doc"