icu_data_hash.py - mozsearch

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# This Source Code Form is subject to the terms of the Mozilla Public

# License, v. 2.0. If a copy of the MPL was not distributed with this

# file, You can obtain one at http://mozilla.org/MPL/2.0/.

import hashlib

def main(output, data_file, template):

    # icu_data.S embeds the data with .incbin, which compiler caches can't see.

    # Emitting the hash at the top of the compiled source makes it change with

    # the data.

    with open(data_file, "rb") as f:

        digest = hashlib.sha256(f.read()).hexdigest()

    output.write(f'#define ICU_DATA_HASH "{digest}"\n')

    with open(template) as f:

        output.write(f.read())