copy-dlls.sh

#!/usr/bin/env bash
set -euo pipefail
trap 'echo "Error at line $LINENO"; exit 1' ERR

usage() {
  cat <<EOF
Usage: ${0##*/} -e <exe> -d <dest> [-p <filter_dir>] [-v]
Options:
  -e 可执行文件 (必需)
  -d 目标目录 (必需)
  -p 过滤目录名，默认: $FILTER_DIR
  -v 详细模式
  -h 帮助
EOF
  exit 1
}

# 参数解析
FILTER_DIR="clang64"; VERBOSE=0
while getopts "e:d:p:vh" opt; do
  case $opt in
    e) EXE=$(realpath "$OPTARG") ;;
    d) DEST_DIR=$(realpath "$OPTARG") ;;
    p) FILTER_DIR="$OPTARG" ;;
    v) VERBOSE=1 ;;
    h|*) usage ;;
  esac
done
[[ -z "${EXE:-}" || -z "${DEST_DIR:-}" ]] && usage

mkdir -p "$DEST_DIR"
declare -A VISITED

copy_dll() {
  local file="$1"
  [[ -z "$file" || "${VISITED[$file]:-}" ]] && return
  [[ "$file" != *"/$FILTER_DIR/"* ]] && return
  [[ ! -f "$file" ]] && { echo "警告: $file 不存在"; return; }

  VISITED["$file"]=1
  ((VERBOSE)) && echo "复制 $file"
  cp -L "$file" "$DEST_DIR/"

  # 递归依赖
  while read -r dep; do
    copy_dll "$dep"
  done < <(ldd "$file" | grep -Po '=>\s*\K(/[^ ]+)' || true)
}

# 主程序和依赖
cp -v "$EXE" "$DEST_DIR/"
while read -r dep; do
  copy_dll "$dep"
done < <(ldd "$EXE" | grep -Po '=>\s*\K(/[^ ]+)' || true)

echo "完成：所有文件已复制到 $DEST_DIR"