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78 lines
2.0 KiB
Python
78 lines
2.0 KiB
Python
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import re
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HOUR = 3600
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DAY = 24*3600
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WEEK = 7*DAY
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MONTH = 30*DAY
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YEAR = 365*DAY
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def abbreviate_time(s):
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def _plural(count, unit):
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count = int(count)
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if count == 1:
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return "%d %s" % (count, unit)
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return "%d %ss" % (count, unit)
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if s is None:
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return "unknown"
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if s < 120:
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return _plural(s, "second")
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if s < 3*HOUR:
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return _plural(s/60, "minute")
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if s < 2*DAY:
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return _plural(s/HOUR, "hour")
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if s < 2*MONTH:
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return _plural(s/DAY, "day")
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if s < 4*YEAR:
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return _plural(s/MONTH, "month")
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return _plural(s/YEAR, "year")
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def abbreviate_space(s, SI=True):
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if s is None:
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return "unknown"
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if SI:
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U = 1000.0
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isuffix = "B"
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else:
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U = 1024.0
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isuffix = "iB"
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def r(count, suffix):
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return "%.2f %s%s" % (count, suffix, isuffix)
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if s < 1024: # 1000-1023 get emitted as bytes, even in SI mode
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return "%d B" % s
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if s < U*U:
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return r(s/U, "k")
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if s < U*U*U:
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return r(s/(U*U), "M")
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if s < U*U*U*U:
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return r(s/(U*U*U), "G")
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if s < U*U*U*U*U:
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return r(s/(U*U*U*U), "T")
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return r(s/(U*U*U*U*U), "P")
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def abbreviate_space_both(s):
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return "(%s, %s)" % (abbreviate_space(s, True),
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abbreviate_space(s, False))
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def parse_abbreviated_size(s):
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if s is None or s == "":
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return None
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m = re.match(r"^(\d+)([kKmMgG]?[iB]?[bB]?)$", s)
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if not m:
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raise ValueError("unparseable value %s" % s)
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number, suffix = m.groups()
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suffix = suffix.upper()
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if suffix.endswith("B"):
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suffix = suffix[:-1]
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multiplier = {"": 1,
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"I": 1,
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"K": 1000,
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"M": 1000 * 1000,
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"G": 1000 * 1000 * 1000,
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"KI": 1024,
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"MI": 1024*1024,
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"GI": 1024*1024*1024,
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}[suffix]
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return int(number) * multiplier
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