[Stupid] question about OS locks

[Aaron Bentley]

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Martin Pool wrote:
> On 4/16/07, John Arbash Meinel <john at arbash-meinel.com> wrote:
> (In passing perhaps all we really need to store for text files is not
> the sha1 of the content but just a bit saying "modified from parent or
> not"?)

In three-way-merge, we compare a working tree against two arbitrary
trees.  sha1s let us do that efficiently, but I don't think a "modified
from parent" bit would do that.

Aaron
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