[cad-linux-dev] Re: undo and version control
- From: Bruno Postle <bruno@xxxxxxxxxx>
- To: CAD linux development <cad-linux-dev@xxxxxxxxxxxxx>
- Date: Tue, 7 Sep 2004 16:46:48 +0100
On Tue 07-Sep-2004 at 10:24 -0500, Eric Wilhelm wrote:
>
> > How do you propose to accomplish undo and version control ?
> Undo would be dependent on the program.
My plan was that since any changes to the drawing would involve
creating a temporary file, I could just 'diff' it with the old file
and store the results in a journal (or journal directory).
Then performing an undo would be as simple as retrieving the most
recent diff/patch and applying it. Undo/redo history would be
infinite and can even survive restarting the application or a
reboot.
A sophisticated application could have a fine-grained undo that
worked at the entity level. Clever tricks like highlighting all the
entities that have changed in the last 5 minutes would be easy too.
> Version control with a directory-based format would be very
> straightforward simply using CVS or SVN.
Yep
--
Bruno
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