> On Tue, August 2, 2011 3:27 pm, George Dinwiddie wrote:
> > On 8/2/11 1:44 AM, Christian Brabandt wrote:
> >> I have been thinking lately if it would be a good idea, if Vim would
> >> only create a swap file, when it detects, that a change to the buffer
> >> has been made. But not just when viewing a file.
> >>
> >> That is usually what happens a lot to me. I have 1 file open and in
> >> another Vim instance I open the same file again only for viewing, so I
> >> would like to avoid the "Attention" prompt.
> >>
> >> On the other hand I can see, that it is certainly useful, if you start
> >> editing a file and immediately Vim warns you, that another Vim instance
> >> is already editing that file. Hm, may be a new option swaponchange or
> >> something?
> >
> > I'd just like to note that if you open the file in read-only mode (e.g.,
> > with 'view <filename>'), then no swap file is created.
>
> Yeah, if just my fingers would remember ;)
I often encountered that problem in situations where I didn't have
control over how Vim opened a file, so training my fingers wouldn't
have helped. I often have several Vim instances open containing
files I'm editing, so they have swap files. Then in one of those
instances I'll use a tags command or a cscope command to find where
a symbol is defined or used. If the symbol is in one of the files
already open in a different Vim instance, I would get the swap file
found error.
I fixed that problem with the following SwapExists autocommand:
if exists("##SwapExists")
autocmd SwapExists * if v:swapcommand =~ '^:ta\%[g] \|^\d\+G$' | let v:swapchoice='o' | endif
endif
If the swap file exists and if the reason for opening the file is a
tags or cscope command, the file is opened read-only.
Regards,
Gary
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