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77 lines
2.3 KiB
Python
77 lines
2.3 KiB
Python
#!/usr/bin/env python3
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# Copyright 2024 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 Optional
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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.custom.version as version_field
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import metadata.fields.util as util
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import metadata.validation_result as vr
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HEX_PATTERN = re.compile(r"^[a-fA-F0-9]{7,40}$")
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class RevisionField(field_types.SingleLineTextField):
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"""Custom field for the revision."""
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def __init__(self):
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super().__init__(name="Revision")
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def narrow_type(self, value: str) -> Optional[str]:
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value = super().narrow_type(value)
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if not value:
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return None
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if version_field.version_is_unknown(value):
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return None
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if util.is_known_invalid_value(value):
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return None
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if not HEX_PATTERN.match(value):
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return None
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return value
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def validate(self, value: str) -> Optional[vr.ValidationResult]:
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"""Validates the revision string.
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Checks:
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- Non-empty value.
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- Valid hexadecimal format (length 7-40 characters).
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"""
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if util.is_unknown(value):
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return vr.ValidationWarning(
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reason=f"{self._name} is invalid.",
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additional=[
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"Revision is required for dependencies which have a git repository "
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"as an upstream, OPTIONAL if the upstream is not a git repository "
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"and either Version or Date is supplied.",
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"'{value}' is not a valid commit hash.",
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],
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)
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if not HEX_PATTERN.match(value):
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return vr.ValidationError(
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reason=f"{self._name} is not a valid hexadecimal revision.",
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additional=[
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"Revisions must be hexadecimal strings with a length of 7 to 40 characters."
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],
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)
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# Valid revision.
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return None
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