Adds a function to ~/.bashrc to run nginx docker container with root in given directory

serve_dir.sh

RC_FILE=~/.bashrc
PORT=8080
NAME=nginx

# Check function is already defined
grep 'servedir' $RC_FILE > /dev/null && (echo "Function definition already exists in $RC_FILE" && exit);

read -d '' func <<- FUNCTION 
servedir() {
  docker stop $(docker ps -f Name=${NAME} -q)
  DIR=$1
  docker run -d -p${PORT}:80 --name=${NAME} --mount "type=bind,source=${DIR},target=/usr/share/nginx/html" nginx || exit
  echo "Server is running on port ${PORT}"
}
FUNCTION

echo "$func" >> $RC_FILE
source $RC_FILE