Add the GPLv3 header to the top of each source code file

add-gplv3.sh

#!/bin/bash

for i in $(git ls | grep "\.rb$"); do
  year=$(git log --follow --diff-filter=A $i | grep Date | tail -1 | awk '{ print $6 }')
  echo "Adding GPL3 header w/ year $year to $i"
  cat ~/lic.txt |sed "s|THEDATE|$year|" | cat - $i > /tmp/temp && mv /tmp/temp $i
done

lic.txt

# Copyright (C) THEDATE Devin Breen
# This file is part of dogtag <https://github.com/chiditarod/dogtag>.
#
# dogtag is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# dogtag is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with dogtag.  If not, see <http://www.gnu.org/licenses/>.