#!/bin/sh
SOURCE="$1"
TARGET="$2"

if [ ! -d "$SOURCE" ] || [ $# -ne 2 ]; then
  echo >/dev/stderr "Usage: dirmir SOURCE TARGET"
  exit 1
fi

if [ -e "$TARGET" ]; then
  echo >/dev/stderr "$TARGET" already exists. Please use a different name.
  exit 1
fi

find "$SOURCE" | while read -r entry; do
  if [ -d "$entry" ]; then
    mkdir -p "$TARGET/$entry"
  else
    # create a file with the same permissions as $entry
    install -m "$(stat -c %a "$entry")" /dev/null "$TARGET/$entry"
  fi
done