39 lines
1.2 KiB
Python
39 lines
1.2 KiB
Python
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#!/usr/bin/env python3
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#
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# Copyright (C) 2022 The Android Open Source Project
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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 difflib
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import pathlib
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from diffs.diff import Diff, ExtractInfo
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class ContextDiff(Diff):
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def __init__(self, tool: ExtractInfo, tool_name: str):
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self.tool = tool
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self.tool_name = tool_name
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def diff(self, left_path: pathlib.Path, right_path: pathlib.Path) -> list[str]:
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errors = []
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left = self.tool(left_path)
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right = self.tool(right_path)
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comparator = difflib.context_diff(left, right)
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difflines = list(comparator)
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if difflines:
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err = "\n".join(difflines)
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errors.append(
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f"{left_path}\ndiffers from\n{right_path}\nper {self.tool_name}:\n{err}")
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return errors
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