808fbf5c7c
<message>Update the _set_golden_from_path function to improve the handling of existing golden image files. Replace the existing unlink logic with a more robust method that safely removes files or broken symlinks using the missing_ok parameter. This change enhances the reliability of the backup upload process by ensuring that stale references are properly cleared before setting a new golden image path.
60 lines
1.6 KiB
Python
60 lines
1.6 KiB
Python
#!/usr/bin/env python3
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"""
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Distance calculation utilities using Haversine formula
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"""
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import math
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from typing import Optional
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def haversine_distance(
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lat1: float, lon1: float, lat2: float, lon2: float
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) -> Optional[float]:
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"""
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Calculate the great circle distance between two points on Earth using Haversine formula.
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Args:
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lat1: Latitude of first point in degrees
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lon1: Longitude of first point in degrees
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lat2: Latitude of second point in degrees
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lon2: Longitude of second point in degrees
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Returns:
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Distance in meters, or None if calculation fails
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"""
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try:
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# Validate inputs
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if not all(isinstance(x, (int, float)) for x in [lat1, lon1, lat2, lon2]):
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return None
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# Check if coordinates are valid
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if not (-90 <= lat1 <= 90) or not (-90 <= lat2 <= 90):
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return None
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if not (-180 <= lon1 <= 180) or not (-180 <= lon2 <= 180):
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return None
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# Earth's radius in meters
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R = 6371000
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# Convert degrees to radians
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phi1 = math.radians(lat1)
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phi2 = math.radians(lat2)
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delta_phi = math.radians(lat2 - lat1)
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delta_lambda = math.radians(lon2 - lon1)
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# Haversine formula
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a = (
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math.sin(delta_phi / 2) ** 2
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+ math.cos(phi1) * math.cos(phi2) * math.sin(delta_lambda / 2) ** 2
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)
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c = 2 * math.atan2(math.sqrt(a), math.sqrt(1 - a))
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# Distance in meters
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distance = R * c
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return distance
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except (ValueError, TypeError, OverflowError):
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return None
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