This script finds the n largest files from your git repository.

git-find-large-files

#!/bin/sh
#
# Credits go to: http://article.gmane.org/gmane.comp.version-control.git/123050
#

usage() {
        echo "usage: `basename $0` [<limit>]"
        exit 1
}

limit=10
if test $# -gt 1
then
        usage
elif test $# -eq 1
then
        limit=$1
fi

git rev-list --all --objects |
        sed -n $(git rev-list --objects --all |
                cut -f1 -d' ' | git cat-file --batch-check | grep blob |
                sort -n -k3 | tail -n$limit | while read hash type size;
                do
                        echo -n "-e s/$hash/$size/p ";
                done) |
        sort -n -k1