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LagoLunatic
30 lines
796 B
Python
Executable File
30 lines
796 B
Python
Executable File
#!/usr/bin/env python3
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from pathlib import Path
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import argparse
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import hashlib
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import sys
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def eprint(*args, **kwargs):
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print(*args, file=sys.stderr, **kwargs)
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parser = argparse.ArgumentParser(description="Computes and verifies a SHA1 checksum")
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parser.add_argument('file', help="Input file to verify")
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parser.add_argument('-c', type=str, dest='checksum_file', required=False, help='Checksum file')
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args = parser.parse_args()
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file_path = Path(args.file)
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checksum_path = Path(args.checksum_file)
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with checksum_path.open('r') as file:
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target_sha1, _ = file.readline().split(' ', 1)
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with file_path.open('rb') as file:
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file_sha1 = hashlib.sha1(file.read()).hexdigest()
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if target_sha1 != file_sha1:
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eprint(f"{file_path}: FAILED")
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exit(1)
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else:
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eprint(f"{file_path}: OK")
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