generate_include_file.sh

#!/bin/bash
# Copyright 2023 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
#
# Generate .h containing configuration database for libsegmentation,
# based on provided binary:
#$1     : output dir
#$2     : output file name
#$3+2*n : input binary file, generated from the .star configuration file.
#$4+2*n : name of the variable used by libsegmentation to retrieve the
#         database.

out="${1}/${2}"
include_once_flag="$(echo -n "${2^^}" | tr -c "[:alnum:]" "_")"

cat > "${out}" << EOF
// Copyright 2023 The ChromiumOS Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Autogenerated file from feature-management that contains information needed
// by libsegmentation.

#ifndef LIBSEGMENTATION_${include_once_flag}_
#define LIBSEGMENTATION_${include_once_flag}_

namespace segmentation {
EOF

i=3
while [ "${i}" -lt $# ]; do
  in=${!i}
  i=$((i + 1))
  key=${!i}
  i=$((i + 1))

  if [ -e "${in}" ]; then
    echo "  const char ${key}[] = \"$(base64 -w 0 < "${in}")\";" >> "${out}"
  else
    echo "  const char ${key}[] = \"\";"
  fi
done

cat >> "${out}" << EOF
}

#endif
EOF