#!/bin/sh

## SPDX-FileCopyrightText: 2023 Benjamin Grande M. S. <ben.grande.b@gmail.com>
##
## SPDX-License-Identifier: AGPL-3.0-or-later

set -eu

prg="$0"
if ! test -e "${prg}"; then
  case "${prg}" in
    (*/*) exit 1;;
    (*) prg=$(command -v -- "${prg}") || exit;;
  esac
fi
dir="$(cd -P -- "$(dirname -- "${prg}")" && pwd -P)" || exit 1
prg="${dir}/$(basename -- "${prg}")" || exit 1
cd -- "${dir}" || exit 1

usage(){
  printf '%s\n' "Usage: ${0##*/} [-h|--help] DIR [DIR2...]"
  printf '%s\n' "Example: ${0##*/}             # deploy all"
  printf '%s\n' "Example: ${0##*/} sh vim ...  # deploy specific dirs"
}

case "${1-}" in
  -h|--help) usage; exit 1;;
  ""|--all) args="$(find . -maxdepth 1 -type d)";;
  *) args="${*}";;
esac

for dir in ${args}; do
  case "${dir##*/}" in
    "."|"..") continue;;
    *) ;;
  esac
  dir="${dir%*/}"
  test -f "${dir}" && continue
  if ! test -d "${dir}"; then
    printf '%s\n' "Directory doesn't exist: '${dir}'." >&2
    exit 1
  fi
  for file in "${dir}"/.*; do
    test -e "${file}" || continue
    case "${file##*/}" in
      "."|"..") continue;;
      *) ;;
    esac
    cp -rv -- "${file}" "${HOME}"
  done
done