Setup VMWare shared folders in guest

setup_vm_mnt.sh

#!/bin/bash
# After sharing /tmp on the host to the guest in VMWare Fusion
# - add a mount point
# - allow my user acess
# - add it to /etc/fstab for persistence

set -euo pipefail

readonly MOUNT_POINT="/mnt/tmp"
readonly SHARED_FOLDER=".host:/tmp"
readonly FSTAB="/etc/fstab"
readonly FSTAB_LINE="$SHARED_FOLDER $MOUNT_POINT fuse.vmhgfs-fuse defaults,allow_other 0 0"
readonly USER="tech"
readonly GROUP="wheel"

function ensure_root_user {
  if [[ "$(id -u)" -ne 0 ]]; then
    echo "This script must be run as root" >&2
    exit 1
  fi
}

function create_mount_point {
  mkdir -p "${MOUNT_POINT}"
}

# Change ownership and permissions
function set_permissions {
  chown "${USER}:${GROUP}" "${MOUNT_POINT}"
  chmod 775 "${MOUNT_POINT}"
}

function update_fstab {
  if ! grep -q "${FSTAB_LINE}" "${FSTAB}"; then
    echo "${FSTAB_LINE}" >> "${FSTAB}"
  else
    echo "Entry already exists in ${FSTAB}"
  fi
}

function main {
  ensure_root_user
  create_mount_point
  set_permissions
  update_fstab
  echo "The dishes are done, man."
}

main