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427f0f43ad
Adds script metadata/scan.py which can be used to search for and validate Chromium dependency metadata files, given a repository root directory. Bug: b:277147404 Change-Id: Ibde0eeb7babe0b1e3f9c7f887bece629d390974a Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4823596 Commit-Queue: Anne Redulla <aredulla@google.com> Reviewed-by: Rachael Newitt <renewitt@google.com>
44 lines
1.4 KiB
Python
44 lines
1.4 KiB
Python
#!/usr/bin/env python3
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# Copyright 2023 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import os
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import re
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import sys
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from typing import Union
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_THIS_DIR = os.path.abspath(os.path.dirname(__file__))
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# The repo's root directory.
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_ROOT_DIR = os.path.abspath(os.path.join(_THIS_DIR, "..", "..", ".."))
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# Add the repo's root directory for clearer imports.
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sys.path.insert(0, _ROOT_DIR)
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import metadata.fields.field_types as field_types
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import metadata.fields.util as util
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import metadata.validation_result as vr
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_PATTERN_CPE_PREFIX = re.compile(r"^cpe:(2.3:|/).+:.+:.+(:.+)*$", re.IGNORECASE)
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class CPEPrefixField(field_types.MetadataField):
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"""Custom field for the package's CPE."""
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def __init__(self):
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super().__init__(name="CPEPrefix", one_liner=True)
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def validate(self, value: str) -> Union[vr.ValidationResult, None]:
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"""Checks the given value is either 'unknown', or conforms to either the
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CPE 2.3 or 2.2 format.
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"""
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if util.is_unknown(value) or util.matches(_PATTERN_CPE_PREFIX, value):
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return None
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return vr.ValidationError(
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reason=f"{self._name} is invalid.",
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additional=[
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"This field should be a CPE (version 2.3 or 2.2), or 'unknown'.",
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"Search for a CPE tag for the package at "
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"https://nvd.nist.gov/products/cpe/search.",
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])
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