#!/usr/bin/env bash

base_dir=$1
group=$2

file_perm=${3:-664}
dir_perm=${4:-2775}

set_also_base_dir=${5:-false}

if $set_also_base_dir ; then
   chmod $dir_perm $base_dir
   chgrp $group $base_dir
fi

while IFS='' read -r -d '' filename ; do

   [[ -f "$filename" ]] && ( chmod $file_perm "$filename"; chgrp $group "$filename")
   [[ ! -d  "$filename" ]]  && continue

   [[ "$filename" =~ .Trash ]] && continue
   [[ "$filename" = "lost+found" ]] && continue

   chmod $dir_perm "$filename" ; chgrp $group "$filename"

   find "$filename" ! -group $group -exec chgrp -R $group {} \;
   find "$filename" -type d ! -perm $dir_perm -exec chmod -R $dir_perm {} \;
   find "$filename" -type f ! -perm $file_perm -exec chmod -R $file_perm {} \;

   
done  < <(find $base_dir -mindepth 1 -maxdepth 1 -print0)

exit 0