61 lines
1.5 KiB
Python
61 lines
1.5 KiB
Python
"""Input validation utilities for file-reference-skill."""
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from pathlib import Path
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def validate_file_path(file_path: str) -> bool:
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"""Validate that a file path exists and is readable.
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Args:
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file_path: Path to validate
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Returns:
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True if valid, False otherwise
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"""
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path = Path(file_path)
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if not path.exists():
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print(f"Error: File does not exist: {file_path}")
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return False
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if not path.is_file():
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print(f"Error: Path is not a file: {file_path}")
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return False
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try:
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with open(path, 'r') as f:
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f.read(1)
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return True
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except PermissionError:
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print(f"Error: Permission denied reading file: {file_path}")
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return False
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except Exception as e:
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print(f"Error: Cannot read file: {file_path} ({e})")
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return False
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def validate_csv_format(file_path: str) -> bool:
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"""Validate that a file is in CSV format.
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Args:
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file_path: Path to CSV file
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Returns:
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True if valid CSV, False otherwise
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"""
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if not validate_file_path(file_path):
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return False
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# Check file extension
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if not file_path.endswith('.csv'):
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print(f"Warning: File does not have .csv extension: {file_path}")
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# Check for CSV content (basic validation)
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with open(file_path, 'r') as f:
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first_line = f.readline()
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if ',' not in first_line:
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print(f"Warning: File may not be valid CSV (no commas found): {file_path}")
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return False
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return True
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