Re: Don't complain about changed file when it hasn't changed

[Davis Herring]

> > A very basic "checksum" would be to just use the file's size.  We could easily 
> > implement that and catch most modifications without any real I/O.
>
> Does this work? Many changes don't affect file size, we we would still want to 
> prompt the user, right?

I merely meant

If the file size doesn't match, immediately rule the file "changed on 
disk" without paying for `insert-file-contents'.

as an optimization to prevent most of the I/O cost.

Davis

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