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Re: UNDO and Mathematica - how useless is it?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg98557] Re: UNDO and Mathematica - how useless is it?
  • From: dbreiss at gmail.com
  • Date: Sun, 12 Apr 2009 03:49:57 -0400 (EDT)
  • References: <200903251042.FAA24502@smc.vnet.net> <23582715.1238067049865.JavaMail.root@m02>

Yes, this is very similar to the approach within A WorkLife
FrameWork....   there is a means there to also add associated comments
associated with each backup.   But it's clear that one can write a
tool that does this without the full machinery of my package...

...David

On Apr 11, 4:00 am, Albert Retey <a... at gmx-topmail.de> wrote:
> Hi,
>

>
> I think for just having backups for your notebooks the possibility to
> use a full featured version control system from within the workbench is
> overkill. The automatic history which eclipse offers for textfiles is
> AFAIK not something that automatically works for mathematica notebooks
> (does it? can it work for an external editor at all? I use SVN with
> workbench which turns automatic local backups off).
>
> The following will add a simple menubar to your notebook which will let
> you save a backup with the current date/time encoded into the filename.
> Just press the backup button whenever you think is appropriate to create
> a "version". This could of course be further improved and adopted to
> your needs, maybe a directory hierarchy would be handy to make it easy
> to delete backups of certain periods that you don't need anymore. Also
> some additional buttons to manage the versions directly would also be
> nice and some error checking would certainly also be a good idea. There
> are no guarantees that this way you will never loose work, but it should
> basically do what it is supposed to...
>
> SetOptions[EvaluationNotebook[],
>  DockedCells -> Append[
>    DeleteCases[
>     DockedCells /. Options[EvaluationNotebook[], DockedCells],
>     HoldPattern[Cell[___, CellTags -> {"BackupMenuBar"}, ___]]
>     ],
>    Cell[BoxData[ToBoxes@Row[{Button["backup",
>          Module[{backupname, backupnb},
>           backupname = StringReplace[
>
>             ToFileName[
>              "FileName" /. NotebookInformation[ButtonNotebo=
ok[]]],
>
>             fname___ ~~ ".nb" :>
>              fname <> "_" <>
>               DateString[{"Year", "-", "Month", "-", "Day",=
 "_",
>                 "Hour", "-", "Minute", "-", "Second"}] <>=
 ".nb"
>             ];
>           SelectionMove[ButtonNotebook[], All, Notebook];
>
>           backupnb =
>            NotebookPut[
>             Notebook[NotebookRead[ButtonNotebook[]],
>              Visible -> False]];
>           NotebookSave[backupnb, backupname];
>           MessageDialog["backup saved to: " <> backupname];
>           NotebookClose[backupnb];
>           ],
>          Method -> "Queued"
>          ]
>         }]
>      ], "DockedCell", CellTags -> {"BackupMenuBar"}]
>    ]
>  ]
>
> hth,
>
> albert



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