Re: diff -r option to ignore missing files

[Bryce Nesbitt (mailing list account)]

Chuck Swiger wrote:

> Bryce Nesbitt (mailing list account) wrote:
>
> > This is a request for a new switch to diff -- "ignore files that 
> > don't exist" (e.g. suppress the  "Only in" message).
> >
> > Why?
> >
> > Sometimes I build a sparse tree with only the files I've changed, and 
> > I want to diff it to the original.
>
>
> At least part of what you're asking for is available via:
>
>   -P     When comparing directories, if a file appears only in the second
>          directory of the two, treat it  as  present  but  empty  in  the
>          other.
I should have said "as distinct from the -P option".  -P makes each file 
appear as empty, so it shows every line as a difference.

The option I have proposed is just the opposite.  Too bad -p is already 
used.

                  -Bryce