Measure size of NPM package

npmsize.sh

npmsize() {
  if [ $1 ]
  then
    PACKAGE_NAME=$1
    CURRENT_DIR="$(pwd)"
    LC_ALL=C
    RANDOM_NAME="$(tr -dc 'a-z' </dev/urandom | head -c 32)"
    TEMP_DIR="$HOME/.$RANDOM_NAME"
    mkdir $TEMP_DIR
    cd $TEMP_DIR
    echo $'{\"name\":\"'$RANDOM_NAME$'\"}' > package.json
    npm install --silent $PACKAGE_NAME
    cd node_modules
    for f in $(ls); do du -sh $(echo $f); done
    cd ..
    echo "$(du -sh node_modules)\t <-- TOTAL"
    cd $CURRENT_DIR
    rm -rf $TEMP_DIR
  else
    echo "Usage: npmsize <package_name>"
  fi
}