File brp-fix-pyc-reproducibility of Package python-rpm-macros

#!/bin/bash -eu

# If using normal root, avoid changing anything.
if [ -z "${RPM_BUILD_ROOT:-}" ] || [ "${RPM_BUILD_ROOT:-}" = "/" ]; then
  exit 0
fi

# Defined as %py_reproducible_pyc_path macro and passed here as
# the first command-line argument
path_to_fix=${1:?}

# First, check that the parser is available:
if [ ! -x /usr/bin/marshalparser ]; then
  echo "ERROR: If %py_reproducible_pyc_path is defined, you have to also BuildRequire: /usr/bin/marshalparser !"
  exit 1
fi

find "$path_to_fix" -type f -name '*.pyc' -exec /usr/bin/marshalparser --fix --overwrite '{}' '+'