node-generator

#!/bin/bash

help() {
  cat <<- EOF
  Generate a npm managed project:
  -h      : print this help
  -r      : requireed packages
  -d      : development packages
  Example: $0 -r express -d eslint
EOF
}

while getopts "hr:d:" opt; do
  case $opt in
    r) REQ_PKGS=($OPTARG);;
    d) DEV_PKGS=($OPTARG);;
    h) help; exit 0;;
    *) echo "This option is not known: $opt"; help; exit 1;;
  esac
done
shift $((OPTIND -1))

if [ "$#" -eq 0 ]; then
  echo "Configure project in current folder"
else
  PROJECT_NAME="$1"
  mkdir -p "${PROJECT_NAME}" && cd "${PROJECT_NAME}"
fi

if [ -e "package.json" ]; then
  npm install
  exit 0
fi

npm init -y

for r in "${REQ_PKGS[@]}"; do
  npm install $r
done

if [ "${#DEV_PKGS[@]}" -eq 0 ]; then
  DEV_PKGS=(eslint)
fi

for d in "${DEV_PKGS[@]}"; do
  npm install --save-dev $d
  if [ "$d" = "eslint" ]; then
    npx eslint --init
  fi
done