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Add check to prevent division by zero during backup status
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@ -115,7 +115,7 @@ def backup_status(env):
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# full backup. That full backup frees up this one to be deleted. But, the backup
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# must also be at least min_age_in_days old too.
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deleted_in = None
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if incremental_count > 0 and first_full_size is not None:
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if incremental_count > 0 and incremental_size > 0 and first_full_size is not None:
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# How many days until the next incremental backup? First, the part of
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# the algorithm based on increment sizes:
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est_days_to_next_full = (.5 * first_full_size - incremental_size) / (incremental_size/incremental_count)
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