in case of new commit you can execute multiple action

git-remote-check.sh

 
# checks if branch has something pending
function parse_git_dirty() {
  git diff --quiet --ignore-submodules HEAD 2>/dev/null; [ $? -eq 1 ] && echo "*"
}
 
# gets the current git branch
function parse_git_branch() {
  git branch --quiet  --no-color 2> /dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/\1$(parse_git_dirty)/"
}
 
# get last commit hash prepended with @ (i.e. @8a323d0)
function parse_git_hash() {
  git rev-parse  HEAD 2> /dev/null | sed "s/\(.*\)/\1/"
}
 
# DEMO

REMOTE_HASH=$(git ls-remote  --heads --quiet | grep $(parse_git_branch) | awk '{print $1}')
LOCAL_HASH=$(parse_git_hash)




if [[ "${REMOTE_HASH}" != "${LOCAL_HASH}" ]];then
	echo " local repo hash ${LOCAL_HASH}"
	echo "remote repo hash ${REMOTE_HASH}"
	echo " -- you need to update your local repo -- "
	# git pull
else
	echo "nothing to do local and remote repo are equal"
fi