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#
# This file is licensed under the Affero General Public License (AGPL) version 3.
#
# Copyright (C) 2023 New Vector, Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# See the GNU Affero General Public License for more details:
# <https://www.gnu.org/licenses/agpl-3.0.html>.
#
# Originally licensed under the Apache License, Version 2.0:
# <http://www.apache.org/licenses/LICENSE-2.0>.
#
# [This file includes modifications made by New Vector Limited]
#
#
import os
import sys
from hashlib import blake2b
import synapse
from synapse.synapse_rust import get_rust_file_digest
def check_rust_lib_up_to_date() -> None:
"""For editable installs check if the rust library is outdated and needs to
be rebuilt.
"""
if not _dist_is_editable():
return
synapse_dir = os.path.dirname(synapse.__file__)
synapse_root = os.path.abspath(os.path.join(synapse_dir, ".."))
# Double check we've not gone into site-packages...
if os.path.basename(synapse_root) == "site-packages":
return
# ... and it looks like the root of a python project.
if not os.path.exists("pyproject.toml"):
return
# Get the hash of all Rust source files
hash = _hash_rust_files_in_directory(os.path.join(synapse_root, "rust", "src"))
if hash != get_rust_file_digest():
raise Exception("Rust module outdated. Please rebuild using `poetry install`")
def _hash_rust_files_in_directory(directory: str) -> str:
"""Get the hash of all files in a directory (recursively)"""
directory = os.path.abspath(directory)
paths = []
dirs = [directory]
while dirs:
dir = dirs.pop()
with os.scandir(dir) as d:
for entry in d:
if entry.is_dir():
dirs.append(entry.path)
else:
paths.append(entry.path)
# We sort to make sure that we get a consistent and well-defined ordering.
paths.sort()
hasher = blake2b()
for path in paths:
with open(os.path.join(directory, path), "rb") as f:
hasher.update(f.read())
return hasher.hexdigest()
def _dist_is_editable() -> bool:
"""Is distribution an editable install?"""
for path_item in sys.path:
egg_link = os.path.join(path_item, "matrix-synapse.egg-link")
if os.path.isfile(egg_link):
return True
return False
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