Initial revisionstart

1 files changed, 49 insertions, 0 deletions

diff --git a/src/scons/Sig/TimeStamp.py b/src/scons/Sig/TimeStamp.py
new file mode 100644
index 0000000..cab44bf
--- /dev/null
+++ b/src/scons/Sig/TimeStamp.py
@@ -0,0 +1,49 @@
+"""scons.Sig.TimeStamp
+
+The TimeStamp signature package for the scons software construction
+utility.
+
+"""
+
+__revision__ = "Sig/TimeStamp.py __REVISION__ __DATE__ __DEVELOPER__"
+
+def _init():
+    pass	# XXX
+
+def _end():
+    pass	# XXX
+
+def current(obj, sig):
+    """Return whether the object's timestamp is up-to-date.
+    """
+    return obj.signature() >= sig
+
+def set():
+    pass	# XXX
+
+def invalidate():
+    pass	# XXX
+
+def collect(*objects):
+    """Collect timestamps from a list of objects, returning
+    the most-recent timestamp from the list.
+    """
+    r = 0
+    for obj in objects:
+	s = obj.signature()
+	if s > r:
+	    r = s
+    return r
+
+def signature(contents):
+    """Generate a timestamp.
+    """
+    pass	# XXX
+#    return md5.new(contents).hexdigest()	# 2.0
+    return hexdigest(md5.new(contents).digest())
+
+def cmdsig():
+    pass	# XXX
+
+def srcsig():
+    pass	# XXX