enable-mock-scripts

#!/bin/bash
#
# Creates a symlink from /opt/tinypilot-privileged/scripts to dev-scripts/mock-scripts
# to facilitate development on non-TinyPilot systems.

# Exit on first failure.
set -e

if (( "${EUID}" != 0 )); then
  echo "This script requires root privileges." >&2
  echo "Please re-run with sudo:" >&2
  echo "  sudo ${0}" >&2
  exit 1
fi

# Echo commands before executing them, by default to stderr.
set -x

# Exit on unset variable.
set -u

readonly PRIVILEGED_SCRIPTS_DIR="/opt/tinypilot-privileged/scripts"
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )"
readonly SCRIPT_DIR
readonly MOCK_SCRIPTS_DIR="${SCRIPT_DIR}/mock-scripts"

# If there's an existing symlink, remove it.
if [[ -L "${PRIVILEGED_SCRIPTS_DIR}" ]]; then
  rm "${PRIVILEGED_SCRIPTS_DIR}"
elif [[ -d "${PRIVILEGED_SCRIPTS_DIR}" ]]; then
  echo "${PRIVILEGED_SCRIPTS_DIR} exists and is not a symlink" >&2
  exit 1
fi

# Create parent folder (in case it doesn’t exist).
mkdir \
  -p \
  "$(dirname "${PRIVILEGED_SCRIPTS_DIR}")"

# Symlink folder with privileged scripts.
ln -s "${MOCK_SCRIPTS_DIR}" "${PRIVILEGED_SCRIPTS_DIR}"