check git log for commits, act on result.

check_gitlog_commits.sh

#!/bin/bash
CHECKGITLOG=$(git log | head -3 | tail -1 | awk '{print $4;}')
TODAY=$(/bin/date | awk '{print $3}')
if [ $CHECKGITLOG -ne $TODAY ] # if you didn't do it today, act accordingly:
    then
        echo "HEY! YOU! DO YOUR WRITING!!! (repo synced more than a day ago)"
        # Do whatever else. I like send_message.py (from my messager repo):
        python messager/send_message.py 917xxxxxxx att "HEY BUM. GET WRITING. NOW."
fi