Find all current lines of code in HEAD for an author

blames.sh

#!/bin/bash
#
# Copyright (c) Christian Tellnes <christian@tellnes.no>
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# Usage: ./blames.sh "Author Name"
#

files1=$(git log --pretty='%H %aN' HEAD | grep -i "$1" | awk '{print $1}' | git log --no-walk --stdin --name-only --pretty=%n | grep -v '^$')
files2=$(git ls-files)
files=$(echo $files1 $files2 | tr " " "\n" | sort | uniq -d)

echo "# Binary files: "
echo $files | xargs file | grep -v text | cut -d: -f1

echo ""
echo "# Git blame"
echo $files | xargs file | grep text | cut -d: -f1 | xargs -n1 git blame --date short -f | grep -i "$1"