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"""SCons.Sig.TimeStamp
The TimeStamp signature package for the SCons software construction
utility.
"""
__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
def current(obj, sig):
"""Return whether the objects timestamp is up-to-date.
"""
return obj.get_signature() >= sig
def collect(signatures):
"""
Collect a list of timestamps, returning
the most-recent timestamp from the list
signatures - a list of timestamps
returns - the most recent timestamp
"""
if len(signatures) == 0:
return 0
elif len(signatures) == 1:
return signatures[0]
else:
return max(signatures)
def signature(obj):
"""Generate a timestamp.
"""
return obj.get_timestamp()
def to_string(signature):
"""Convert a timestamp to a string"""
return str(signature)
def from_string(string):
"""Convert a string to a timestamp"""
return int(string)
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