From 1a68b1e968df255b0df0a6a2d3ddf0c66d7bebdc Mon Sep 17 00:00:00 2001
From: Nicolas Gallagher <nicolasgallagher@gmail.com>
Date: Sat, 8 Dec 2012 11:47:28 +0100
Subject: .functions: Make `gz` more awesome

---
 .functions | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/.functions b/.functions
index 93356f9..c2c1556 100644
--- a/.functions
+++ b/.functions
@@ -52,12 +52,13 @@ function phpserver() {
 	php -S "${ip}:${port}"
 }
 
-# Get gzipped file size
+# Compare original and gzipped file size
 function gz() {
-	echo "orig size (bytes): "
-	cat "$1" | wc -c
-	echo "gzipped size (bytes): "
-	gzip -c "$1" | wc -c
+	local origsize=$(wc -c < "$1")
+	local gzipsize=$(gzip -c "$1" | wc -c)
+	local ratio=$(echo "$gzipsize * 100/ $origsize" | bc -l)
+	printf "orig: %d bytes\n" "$origsize"
+	printf "gzip: %d bytes (%2.2f%%)\n" "$gzipsize" "$ratio"
 }
 
 # Test if HTTP compression (RFC 2616 + SDCH) is enabled for a given URL.
-- 
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