#!/bin/sh
# Собирает .so, нужные NIF/priv из release (ldd), для runtime-слоя.
# Исключает musl/libc — их даёт базовый alpine-образ.
# Usage: collect-runtime-libs.sh <release_dir> <output_root>
set -eu

RELEASE="${1:?release_dir}"
OUT="${2:?output_root}"

mkdir -p "${OUT}"

is_base_lib() {
  case "$1" in
    /lib/ld-musl-*|*/ld-musl-*|*/libc.musl-*) return 0 ;;
  esac
  return 1
}

copy_lib() {
  lib="$1"
  [ -e "${lib}" ] || return 0
  is_base_lib "${lib}" && return 0
  dest="${OUT}${lib}"
  mkdir -p "$(dirname "${dest}")"
  if [ -L "${lib}" ]; then
    cp -a "${lib}" "${dest}"
  else
    cp -L "${lib}" "${dest}" 2>/dev/null || cp "${lib}" "${dest}"
  fi
}

# shellcheck disable=SC2044
for so in $(find "${RELEASE}" -name '*.so' 2>/dev/null); do
  ldd "${so}" 2>/dev/null | while read -r line; do
    case "${line}" in
      *'=>'*)
        lib=$(echo "${line}" | awk '{print $3}')
        [ -n "${lib}" ] && copy_lib "${lib}"
        ;;
      /lib/*|/usr/lib/*)
        lib=$(echo "${line}" | awk '{print $1}')
        copy_lib "${lib}"
        ;;
    esac
  done
done

echo "collect-runtime-libs: $(find "${OUT}" -name '*.so*' 2>/dev/null | wc -l) files under ${OUT}"