Mercurial > repos > shellac > sam_consensus_v3
view env/lib/python3.9/site-packages/galaxy/util/bytesize.py @ 0:4f3585e2f14b draft default tip
"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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SUFFIX_TO_BYTES = { 'KI': 1024, 'MI': 1024**2, 'GI': 1024**3, 'TI': 1024**4, 'PI': 1024**5, 'EI': 1024**6, 'K': 1000, 'M': 1000**2, 'G': 1000**3, 'T': 1000**4, 'P': 1000**5, 'E': 1000**6, } class ByteSize: """Convert multiples of bytes to various units.""" def __init__(self, value): """ Represents a quantity of bytes. `value` may be an integer, in which case it is assumed to be bytes. If value is a string, it is parsed as bytes if no suffix (Mi, M, Gi, G ...) is found. >>> values = [128974848, '129e6', '129M', '123Mi' ] >>> [ByteSize(v).to_unit('M') for v in values] ['128M', '129M', '129M', '128M'] """ self.value = parse_bytesize(value) def to_unit(self, unit=None, as_string=True): """unit must be `None` or one of Ki,Mi,Gi,Ti,Pi,Ei,K,M,G,T,P.""" if unit is None: if as_string: return str(self.value) return self.value unit = unit.upper() new_value = int(self.value / SUFFIX_TO_BYTES[unit]) if not as_string: return new_value return f"{new_value}{unit}" def parse_bytesize(value): if isinstance(value, int) or isinstance(value, float): # Assume bytes return value value = value.upper() found_suffix = None for suffix in SUFFIX_TO_BYTES: if value.endswith(suffix): found_suffix = suffix break if found_suffix: value = value[:-len(found_suffix)] try: value = int(value) except ValueError: try: value = float(value) except ValueError: raise ValueError(f"{value} is not a valid integer or float value") if found_suffix: value = value * SUFFIX_TO_BYTES[found_suffix] return value