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# Copyright 2022 The Matrix.org Foundation C.I.C. |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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import os |
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import sys |
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from hashlib import blake2b |
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import synapse |
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from synapse.synapse_rust import get_rust_file_digest |
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def check_rust_lib_up_to_date() -> None: |
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"""For editable installs check if the rust library is outdated and needs to |
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be rebuilt. |
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""" |
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if not _dist_is_editable(): |
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return |
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synapse_dir = os.path.dirname(synapse.__file__) |
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synapse_root = os.path.abspath(os.path.join(synapse_dir, "..")) |
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# Double check we've not gone into site-packages... |
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if os.path.basename(synapse_root) == "site-packages": |
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return |
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# ... and it looks like the root of a python project. |
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if not os.path.exists("pyproject.toml"): |
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return |
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# Get the hash of all Rust source files |
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hash = _hash_rust_files_in_directory(os.path.join(synapse_root, "rust", "src")) |
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if hash != get_rust_file_digest(): |
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raise Exception("Rust module outdated. Please rebuild using `poetry install`") |
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def _hash_rust_files_in_directory(directory: str) -> str: |
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"""Get the hash of all files in a directory (recursively)""" |
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directory = os.path.abspath(directory) |
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paths = [] |
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dirs = [directory] |
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while dirs: |
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dir = dirs.pop() |
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with os.scandir(dir) as d: |
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for entry in d: |
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if entry.is_dir(): |
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dirs.append(entry.path) |
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else: |
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paths.append(entry.path) |
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# We sort to make sure that we get a consistent and well-defined ordering. |
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paths.sort() |
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hasher = blake2b() |
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for path in paths: |
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with open(os.path.join(directory, path), "rb") as f: |
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hasher.update(f.read()) |
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return hasher.hexdigest() |
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def _dist_is_editable() -> bool: |
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"""Is distribution an editable install?""" |
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for path_item in sys.path: |
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egg_link = os.path.join(path_item, "matrix-synapse.egg-link") |
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if os.path.isfile(egg_link): |
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return True |
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return False |