64 lines
1.5 KiB
Python
Executable File
64 lines
1.5 KiB
Python
Executable File
#!/usr/bin/env python3
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import sys
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from datetime import datetime, timedelta
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# Copied from machfs MakeHFS
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def hfsdat(x):
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if x.lower() == "now":
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x = datetime.now().isoformat()
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if len(x) == 8 and all(c in "0123456789ABCDEF" for c in x.upper()):
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try:
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return int(x, base=16)
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except ValueError:
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pass
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epoch = "19040101000000" # ISO8601 with the non-numerics stripped
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# strip non-numerics and pad out using the epoch (cheeky)
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stripped = "".join(c for c in x if c in "0123456789")
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stripped = stripped[: len(epoch)] + epoch[len(stripped) :]
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tformat = "%Y%m%d%H%M%S"
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delta = datetime.strptime(stripped, tformat) - datetime.strptime(epoch, tformat)
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delta = int(delta.total_seconds())
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if not 0 <= delta <= 0xFFFFFFFF:
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print("Warning: moving %r into the legacy MacOS date range (1904-2040)" % x)
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delta = min(delta, 0xFFFFFFFF)
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delta = max(delta, 0)
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return delta
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# Copied from ExtractBinDates.py
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def macdatestr(srcint):
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dt = datetime(1904, 1, 1) + timedelta(seconds=srcint)
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st = dt.isoformat()
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st = st.replace("T", " ")
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return st
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def secs2date(secs):
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print(f"${secs:08x} = {macdatestr(secs)}")
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def date2secs(date):
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secs = hfsdat(date)
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print(f"{macdatestr(secs)} = ${secs:08x}")
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for a in sys.argv[1:]:
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if a.startswith("$"):
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secs = int(a[1:], 16)
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secs2date(secs)
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elif a.startswith("0x"):
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secs = int(a[2:], 16)
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secs2date(secs)
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else:
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date2secs(a)
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