Re: warning on opening encrypted file

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

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