Merge pull request jwiegley#22 from devcsrj/master

Added git-discover-large-blobs

Author: jwiegley

git-discover-large-blobs

@@ -0,0 +1,32 @@
+#!/bin/bash
+#set -x 
+
+# Shows you the largest objects in your repo's pack file.
+#
+# @see http://stubbisms.wordpress.com/2009/07/10/git-script-to-show-largest-pack-objects-and-trim-your-waist-line/
+# @author Antony Stubbs
+
+# set the internal field separator to line break, so that we can iterate easily over the verify-pack output
+IFS=$'\n';
+
+# list all objects including their size, sort by size, take top 10
+objects=`git verify-pack -v .git/objects/pack/pack-*.idx | grep -v chain | sort -k3nr | head`
+
+echo "All sizes are in kB's. The pack column is the size of the object, compressed, inside the pack file."
+
+output="size,pack,SHA,location"
+for y in $objects
+do
+	# extract the size in bytes
+	size=$((`echo $y | cut -f 5 -d ' '`/1024))
+	# extract the compressed size in bytes
+	compressedSize=$((`echo $y | cut -f 6 -d ' '`/1024))
+	# extract the SHA
+	sha=`echo $y | cut -f 1 -d ' '`
+	# find the objects location in the repository tree
+	other=`git rev-list --all --objects | grep $sha`
+	#lineBreak=`echo -e "\n"`
+	output="${output}\n${size},${compressedSize},${other}"
+done
+
+echo -e $output | column -t -s ', '