A simple shell command to check if a git repository is up to date or not. You can use this to autodeploy simple websites, trigger workflows or notify people.

sample.sh

#!/bin/sh

if [ "`git --git-dir="/path/to/your/repo/.git" log --pretty=%H ...refs/heads/master^ | head -n 1`" = "`git --git-dir="/path/to/your/repo/.git" ls-remote origin -h refs/heads/master |cut -f1`" ]
then
    echo "Repo up to date"
else
    echo "Updates available .. pull changes and do magic here"
fi