_EXEC="$(dirname "$real")" #execution directory
_DATA="$(dirname "$call")" #storage directory
[ -w "$_DATA" ] && [ -d "$_DATA" ] || die "storage directory must be writable"
# create directories for object storage
_EXEC="$(dirname "$real")" #execution directory
_DATA="$(dirname "$call")" #storage directory
[ -w "$_DATA" ] && [ -d "$_DATA" ] || die "storage directory must be writable"
# create directories for object storage