Re: warning on opening encrypted file

Toothpik 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

I cannot reproduce the problem. Perhaps it's because of other files in
your undo directory? Try using another directory, e.g. ~/.vim/undotest

--
"Beware of bugs in the above code; I have only proved
it correct, not tried it." -- Donald Knuth

/// Bram Moolenaar -- Bram@Moolenaar.net -- http://www.Moolenaar.net \\\
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