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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2022-01-30 11:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2022-01-30 11:02:58 +0000 |
commit | 307d578d739eb254ef3000fdde94271af9b8923e (patch) | |
tree | cf256ef8bea7b1cad51d3a662dd4d6885156e98b /pre_commit_hooks/check_json.py | |
parent | Initial commit. (diff) | |
download | pre-commit-hooks-307d578d739eb254ef3000fdde94271af9b8923e.tar.xz pre-commit-hooks-307d578d739eb254ef3000fdde94271af9b8923e.zip |
Adding upstream version 4.1.0.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'pre_commit_hooks/check_json.py')
-rw-r--r-- | pre_commit_hooks/check_json.py | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/pre_commit_hooks/check_json.py b/pre_commit_hooks/check_json.py new file mode 100644 index 0000000..96ba024 --- /dev/null +++ b/pre_commit_hooks/check_json.py @@ -0,0 +1,40 @@ +import argparse +import json +from typing import Any +from typing import Dict +from typing import List +from typing import Optional +from typing import Sequence +from typing import Tuple + + +def raise_duplicate_keys( + ordered_pairs: List[Tuple[str, Any]], +) -> Dict[str, Any]: + d = {} + for key, val in ordered_pairs: + if key in d: + raise ValueError(f'Duplicate key: {key}') + else: + d[key] = val + return d + + +def main(argv: Optional[Sequence[str]] = None) -> int: + parser = argparse.ArgumentParser() + parser.add_argument('filenames', nargs='*', help='Filenames to check.') + args = parser.parse_args(argv) + + retval = 0 + for filename in args.filenames: + with open(filename, 'rb') as f: + try: + json.load(f, object_pairs_hook=raise_duplicate_keys) + except ValueError as exc: + print(f'{filename}: Failed to json decode ({exc})') + retval = 1 + return retval + + +if __name__ == '__main__': + raise SystemExit(main()) |