Send GIT the commits of the last 7 days By Email

#!/bin/bash

if [ "$1" == "-h" ] ; then
    echo "Send a friendly weekly report of git commits to the specified email"
    echo "Usage: `basename $0` [-h] recepient_email email_subject"
    exit 0
fi

if ! git ls-files >& /dev/null; then
  echo "You can only run this command inside a git repository!"
  exit 0
fi

to="$1";
subject="$2";

if [ -z "$to" ]; then
  echo "Recepient email address is required!"
  exit 0
fi

if [ -z "$subject" ]; then
  echo "Subject is required!"
  exit 0
fi

(
message=`git log --pretty=format:"<span style='color: blue;'>%an</span> %s <span style='color: grey;font-size: 9px'>%cd %H</span><br />" --since=1.weeks --decorate | sort`;
echo "To: ${to}";
echo "Subject: ${subject}";
echo "Content-Type: text/html";
echo "MIME-Version: 1.0";
echo "";
echo "${message}";
) | sendmail -t