just a shortcut for creating a tag object and (optionally) pushing it

git-quick-tag.sh

#!/bin/bash

if [[ $# -lt 1 ]]; then
  echo "Usage $(basename $0) [-p] tagname" >&2
  echo 'the -p option will run `git push --tags` after creating the new tag' >&2
  exit 1
fi

DO_PUSH=''

while getopts ':p' option
do
  case $option in
    p) DO_PUSH='yes' ;;
  esac
done

shift $(($OPTIND - 1))

git tag -am "$1" $1

if [[ $DO_PUSH == 'yes' ]]; then
  git push --tags
fi