How to clean remove claude code

perfectly-remove-claude-code.sh

#!/usr/bin/env bash
set -u

existing_paths=()
removal_failures=()

detect_platform() {
  local kernel

  kernel="$(uname -s 2>/dev/null || printf 'unknown')"

  case "$kernel" in
    Darwin)
      printf 'macOS\n'
      ;;
    Linux)
      if [ -r /proc/version ] && grep -qi microsoft /proc/version 2>/dev/null; then
        printf 'WSL\n'
      else
        printf 'Linux\n'
      fi
      ;;
    MINGW*|MSYS*|CYGWIN*)
      printf 'Git Bash\n'
      ;;
    *)
      printf '%s\n' "$kernel"
      ;;
  esac
}

command_path() {
  command -v claude 2>/dev/null || true
}

append_if_exists() {
  local path="$1"

  if [ -e "$path" ] || [ -L "$path" ]; then
    existing_paths+=("$path")
  fi
}

collect_candidates() {
  existing_paths=()

  append_if_exists "$HOME/.local/bin/claude"
  append_if_exists "$HOME/.local/share/claude"
  append_if_exists "$HOME/.claude"
  append_if_exists "$HOME/.claude.json"
  append_if_exists "$HOME/.claude.json.backup"
  append_if_exists "$HOME/.claude-remote-yolo-state.json"
  append_if_exists "$HOME/.cache/claude"
  append_if_exists "$HOME/.local/state/claude"
  append_if_exists "$HOME/Applications/Claude Code URL Handler.app"

  if [ "${CLAUDE_CODE_SYSTEM_PATHS:-1}" != "0" ]; then
    append_if_exists "/opt/homebrew/bin/claude"
    append_if_exists "/opt/homebrew/lib/node_modules/@anthropic-ai/claude-code"
    append_if_exists "/usr/local/bin/claude"
    append_if_exists "/usr/local/lib/node_modules/@anthropic-ai/claude-code"
  fi
}

print_preview() {
  local resolved
  local i

  resolved="$(command_path)"

  printf 'Platform: %s\n' "$(detect_platform)"
  if [ -n "$resolved" ]; then
    printf 'claude command currently resolves to: %s\n' "$resolved"
  else
    printf 'claude command currently not found in PATH.\n'
  fi

  printf 'Detected Claude Code paths:\n'
  if [ "${#existing_paths[@]}" -eq 0 ]; then
    printf '  (none)\n'
    return
  fi

  for ((i = 0; i < ${#existing_paths[@]}; i++)); do
    printf '  - %s\n' "${existing_paths[$i]}"
  done
}

prompt_user() {
  local answer

  printf 'Proceed with deletion? [y/N] '
  if ! read -r answer; then
    answer=""
  fi

  case "$answer" in
    y|Y)
      return 0
      ;;
    *)
      return 1
      ;;
  esac
}

remove_detected_paths() {
  local path
  local i

  removal_failures=()

  for ((i = 0; i < ${#existing_paths[@]}; i++)); do
    path="${existing_paths[$i]}"
    if rm -rf "$path" 2>/dev/null; then
      printf 'Removed: %s\n' "$path"
    else
      printf 'Failed to remove: %s\n' "$path" >&2
      removal_failures+=("$path")
    fi
  done
}

verify_cleanup() {
  local resolved
  local i

  collect_candidates
  resolved="$(command_path)"

  if [ -n "$resolved" ]; then
    printf 'claude command still resolves to: %s\n' "$resolved"
  else
    printf 'claude command not found after cleanup.\n'
  fi

  if [ "${#existing_paths[@]}" -eq 0 ]; then
    printf 'No allowed Claude Code paths remain.\n'
  else
    printf 'Allowed Claude Code paths still present:\n'
    for ((i = 0; i < ${#existing_paths[@]}; i++)); do
      printf '  - %s\n' "${existing_paths[$i]}"
    done
  fi

  if [ "${#removal_failures[@]}" -gt 0 ]; then
    printf 'Some paths could not be removed during cleanup.\n' >&2
    return 1
  fi

  if [ -n "$resolved" ] || [ "${#existing_paths[@]}" -gt 0 ]; then
    return 1
  fi

  return 0
}

main() {
  collect_candidates
  print_preview

  if [ "${#existing_paths[@]}" -eq 0 ]; then
    printf 'No direct-install Claude Code paths were found. Nothing to delete.\n'
    exit 0
  fi

  if ! prompt_user; then
    printf 'Deletion cancelled.\n'
    exit 0
  fi

  remove_detected_paths

  if verify_cleanup; then
    exit 0
  fi

  exit 1
}

main "$@"