Re: compressed undofiles

Adam Monsen wrote:

> I use undofiles heavily. I often copy a file along with its undofile when
> creating a new similar file. I notice (a) the undofiles can get quite large
> and (b) they compress very efficiently. I tested compressing a few
> ".test.txt.un~" files with gzip and saw 90% compression.
>
> Anyone interested in compressed undofiles?

That sounds like a useful option. It could be implemented like a
filter, using gzip to read from stdin or write to stdout.

The largest proglem I see is to detect that an undo file is compressed,
know that the filter needs to be used. Perhaps we could read some
number of bytes from the file and match a regexp on it?

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