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83 lines
2 KiB
Python
83 lines
2 KiB
Python
"""Check for alias collisions within the codebase"""
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from argparse import ArgumentDefaultsHelpFormatter, ArgumentParser, FileType
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from pathlib import Path
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from typing import List
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from dataclasses import dataclass
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import itertools
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import re
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ERROR_MESSAGE_TEMPLATE = """Found alias collision
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Alias %s defined in %s already exists as %s in %s.
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Consider renaming your alias.
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"""
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def dir_path(path_string: str) -> Path:
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if Path(path_string).is_dir():
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return Path(path_string)
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else:
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raise NotADirectoryError(path_string)
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def parse_arguments():
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parser = ArgumentParser(
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description=__doc__,
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formatter_class=ArgumentDefaultsHelpFormatter,
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)
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parser.add_argument(
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"folder",
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type=dir_path,
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help="Folder to check",
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)
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return parser.parse_args()
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@dataclass(frozen=True)
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class Alias:
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alias: str
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value: str
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module: Path
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def find_aliases_in_file(file: Path) -> List[Alias]:
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matches = re.findall(r"^alias (.*)='(.*)'", file.read_text(), re.M)
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return [Alias(match[0], match[1], file) for match in matches]
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def find_all_aliases(path: Path) -> List:
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files = list(path.rglob("*.zsh"))
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aliases = [find_aliases_in_file(file) for file in files]
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return list(itertools.chain(*aliases))
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def check_for_duplicates(aliases: List[Alias]) -> None:
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elements = dict()
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for alias in aliases:
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if alias.alias in elements:
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existing = elements[alias.alias]
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raise ValueError(
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ERROR_MESSAGE_TEMPLATE
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% (
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f"{alias.alias}={alias.value}",
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alias.module.name,
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f"{existing.alias}={existing.value}",
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existing.module.name,
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)
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)
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else:
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elements[alias.alias] = alias
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def main():
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"""main"""
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args = parse_arguments()
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aliases = find_all_aliases(args.folder)
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check_for_duplicates(aliases)
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print("Found no collisions")
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if __name__ == "__main__":
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main()
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