get-claudesettings

#!/usr/bin/env bash

# Environment setup
# -----------------------------------------------------------------------------
set -o pipefail
[[ ${DEBUG-} ]] && set -o xtrace
SCRIPT_DIR="$(cd "${BASH_SOURCE[0]%/*}" || exit 1; pwd)"
source "${SCRIPT_DIR}/bash_modules/terminal.sh"
[[ -z ${BASH_MODULES_DIR-} ]] && echo "ERROR: terminal.sh module missing" && exit 1

function print_usage() {
  cat <<EOF
Usage: $(basename "$0")

Read Claude Code settings and display a formatted summary of configuration
and permissions.

Dependencies:
  jq                 JSON processor

Optional arguments:
  -h, --help         Show this help message and exit
EOF
}
if [[ $# -gt 0 ]]; then
  print_usage
  exit 0
fi

# Dependency Check
# -----------------------------------------------------------------------------
if ! command -v jq >/dev/null; then
  log_error "ERROR: Missing dependency - 'jq'"
  exit 1
fi

# Configuration
# -----------------------------------------------------------------------------
settings_file="${HOME}/.claude/settings.json"

if [[ ! -f "${settings_file}" ]]; then
  log_error "ERROR: Settings file not found - '${settings_file}'"
  exit 1
fi

settings=$(cat "${settings_file}")

# Helper function to extract and format permissions by type
function format_permissions() {
  local -r permission_type="${1}"
  local -r json_path="${2}"
  local -r home_path="${HOME}"

  local items
  items=$(echo "${settings}" | jq -r "${json_path}[]? // empty" 2>/dev/null)

  [[ -z "${items}" ]] && return

  local bash_items=()
  local read_items=()
  local write_items=()
  local other_items=()

  while IFS= read -r item; do
    if [[ "${item}" =~ ^Bash\((.+):\*\)$ ]]; then
      bash_items+=("${BASH_REMATCH[1]}")
    elif [[ "${item}" =~ ^Bash\((.+)\)$ ]]; then
      bash_items+=("${BASH_REMATCH[1]}")
    elif [[ "${item}" =~ ^Read\((.+)\)$ ]]; then
      local path="${BASH_REMATCH[1]}"
      path="${path/${home_path}/\~}"
      read_items+=("${path}")
    elif [[ "${item}" =~ ^Write\((.+)\)$ ]]; then
      local path="${BASH_REMATCH[1]}"
      path="${path/${home_path}/\~}"
      write_items+=("${path}")
    else
      other_items+=("${item}")
    fi
  done <<< "${items}"

  echo "## ${permission_type}"
  echo

  if [[ ${#bash_items[@]} -gt 0 ]]; then
    echo "Bash:"
    printf "  %s\n" "$(printf '%s, ' "${bash_items[@]}" | sed 's/, $//')"
    echo
  fi

  if [[ ${#read_items[@]} -gt 0 ]]; then
    echo "Read:"
    printf "  %s\n" "$(printf '%s, ' "${read_items[@]}" | sed 's/, $//')"
    echo
  fi

  if [[ ${#write_items[@]} -gt 0 ]]; then
    echo "Write:"
    printf "  %s\n" "$(printf '%s, ' "${write_items[@]}" | sed 's/, $//')"
    echo
  fi

  if [[ ${#other_items[@]} -gt 0 ]]; then
    echo "Other:"
    printf "  %s\n" "$(printf '%s, ' "${other_items[@]}" | sed 's/, $//')"
    echo
  fi
}

# Output
# -----------------------------------------------------------------------------
echo "# Claude Settings"
echo

model=$(echo "${settings}" | jq -r '.model // "not set"')
echo "- model: ${model}"

plugins=$(echo "${settings}" | jq -r '.enabledPlugins | keys[]? // empty' 2>/dev/null | paste -sd ',' - | sed 's/,/, /g')
if [[ -n "${plugins}" ]]; then
  echo "- enabledPlugins: ${plugins}"
else
  echo "- enabledPlugins: none"
fi

echo
echo "# Permissions"
echo

format_permissions "Allowed" ".permissions.allow"
format_permissions "Ask" ".permissions.ask"
format_permissions "Denied" ".permissions.deny"