> This can't be done completely mechanically, since one has to check
> when the last copyrightable changes (and not all changes are
> copyrightable) have been, correct?
>
> That's correct, aside from one subtle point. It's not that "not all
> changes are copyrightable" but rather that "not all changes are big
> enough to count for copyright purposes". So the question, for each
> year, is "were substantial changes made during that year". If yes,
> that year should be mentioned.
>
> Substantial means adding up to more than 10-15 lines of total change.
Trying to reduce it to a formula for files whose history that we're
not familiar with:
e.g choosing cmacexp.el at random
cvs annotate cmacexp.el > files.ann
grep "..-...-05" cmacexp.ann | wc
13 104 962
13 < 15 => don't add copyright year.
What are the consequences of adding a year where no copyrightable changes
were made? Presumably this is less serious than not adding a year where
such changes were made.
How about developing a script to update these changes automatically?
Nick
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