Recursively removes all node modules directories within a given directory

clean_up_node_modules.sh

#!/bin/bash

echo -e "\nFind and optionally delete all top level node_modules in a specific directory.\n"

# Initialize an array to store paths
NODE_MODULES_PATHS=()

while IFS= read -r line; do
  size=$(echo "$line" | awk '{print $1}')
  path=$(echo "$line" | awk '{print $2}')

  # Skip if directory is nested inside another node_modules
  if [[ ! $path =~ /node_modules/.*/node_modules$ ]] && [[ $size != "0B" ]]; then
    echo "$size $path"
    NODE_MODULES_PATHS+=("$path")
  fi
done < <(find . -type d -name "node_modules" -prune -exec du -sh {} \; | sort -hr)

echo -e "\nTotal size of significant node_modules:"
find . -type d -name "node_modules" -prune -exec du -s {} \; | awk '{ total += $1 } END { printf "%.1fG\n", total/1024/1024 }'

# Prompt user to delete the node_modules directories
echo -e "\nFound ${#NODE_MODULES_PATHS[@]} significant node_modules directories."
echo "Would you like to delete these node_modules directories? (y/n)"

# Debug info
echo "Waiting for your input... (Press y or n and then Enter)"

# Make sure we're reading from the terminal directly
REPLY=""
if [ -t 0 ]; then
  read -r REPLY </dev/tty
else
  read -r REPLY
fi

echo "You entered: '$REPLY'"

# Delete the node_modules directories if user confirms
if [[ $REPLY =~ ^[Yy]$ ]]; then
  echo "Proceeding with deletion..."
  for path in "${NODE_MODULES_PATHS[@]}"; do
    echo "Deleting $path"
    sudo rm -rf "$path"
  done

  echo -e "\nVerifying deletion..."
  new_size=$(find . -type d -name "node_modules" -prune -exec du -s {} \; | awk '{ total += $1 } END { printf "%.1fG\n", total/1024/1024 }')
  if [[ $new_size == "0.0G" ]]; then
    echo "All node_modules directories were successfully deleted!"
  else
    echo "Remaining node_modules size: $new_size"
    echo "Some directories might require additional permissions to delete."
  fi
else
  echo "Operation cancelled. No directories were deleted."
fi