Re: warning on opening encrypted file

On Fri, Jan 20, 2012 at 10:13 PM, sc <toothpik@swbell.net> wrote:
> On Fri, Jan 20, 2012 at 02:46:58PM -0600, sc wrote:
>> On Fri, Jan 20, 2012 at 09:14:13PM +0100, Bram Moolenaar wrote:
>
>> > Toothpik wrote:
>
>> > > i'm one of those risk-takers who like to keep his passwords in a
>> > > module in his home path -- for the purposes of this email let's
>> > > say i call it "passwords"
>> > >
>> > > as a nod to security i've started keeping it encrypted
>> > > (blowfish)
>> > >
>> > > i also like the new undofile option, it would have saved me much
>> > > hair tearing and teeth gnashing if i had had it all along
>> > >
>> > > when these two likes coincide (opening an encrypted file with
>> > > 'set undofile' in my .vimrc) i get an unpleasant warning that
>> > >
>> > >     E832: Non-encrypted file has encrypted undo file:
>> > >     /yadayada/passwords
>> > >
>> > > i can work around this with
>> > >
>> > >     if expand("%") != "passwords"
>> > >         set undofile
>> > >     endif
>> > >
>> > > in my .vimrc, but on reflection i can't think of a better
>> > > candidate for persistent undo than that module
>> > >
>> > > does anyone have a better workaround, or is this perchance a bug
>> > > somewhere along the line -- after all, it is indeed not a
>> > > non-encrypted file and should not be reporting it as such
>> > >
>> > > my vim is 7.3.406
>
>> > I don't see this problem, I can use an undo file with an encrypted file
>> > without problems.
>
>> > Perhaps the sequence in which you do things matter?  Try to make a
>> > reproducible example, starting with "vim -u NONE".  Don't use your real
>> > passwords file :-).
>
>> ok, you're right -- with "vim -u testvimrc" it doesn't happen
>> too, where testvimrc contains only
>
>>    set nocompatible
>>    set undofile
>
>> so, for the next while or so i will be moving things around in
>> my [monster] vimrc in an attempt to find out why
>
>> anyone wanting to help out is welcome to see the beast at
>
>>    https://github.com/toothpik/toothpik-s-.vimrc/blob/master/.vimrc
>
> ok, this is fun
>
> it seems setting undodir before undofile triggers the E832 for
> encrypted files
>
> to recreate, make a testvimrc containing only
>
>    set nocompatible
>    set undodir=~/.vim/undo
>    set undofile
>
> then use it as with
>
>    vim -u testvimrc testfile
>
> where testfile is encrypted -- you are guaranteed to see the
> error
>
> it bites me because i try to keep my options sorted
> alphabetically -- they're easier to find that way, and undodir
> sorts above undofile
>
> sc

Following your instructions, I could not reproduce this.

:version
VIM - Vi IMproved 7.3 (2010 Aug 15, compiled Oct 6 2011 10:34:41)
Included patches: 1-154

--
Albin Olsson, IT Consultant and Classic Connoisseur
www.albinolsson.se | albin.olsson@gmail.com
+46 707 831 830

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