Re: warn about conflicting skeleton-generated files

[Joel E. Denny]

On Wed, 13 Dec 2006, Paul Eggert wrote:

> "Joel E. Denny" <address@hidden> writes:
> 
> > I just remembered one place I've seen something like the above.  These are 
> > different:
> >
> >   info --file=bison.info
> >   info --file=./bison.info
> 
> OK, that's enough precedent for me; you talked me into it.

Great.

If we do need --skeleton-path at some point, we can use `info -d' and 
$INFOPATH as a precedent.  For now, for simplicity, I think we can leave 
that unimplemented.

I want to make sure we're clear on the algorithm.  Unfortunately, using 
`info info' I didn't find a clear explanation of `info --file'.  However, 
using `info bash' I did find some discussion of shell command execution.  
I believe that discussion agrees with my experiences using both of those, 
so I propose:

1. If the file name does not contain `/', prepend `pkgdatadir/'.
2. If it does, don't.

There's one caveat for that algorithm: if we one day decide that 
pkgdatadir needs subdirectories of skeletons files where the same base 
file name appears in more than one of them, I see no way to distinguish 
among those files.  However, I assume that we can always name Bison's 
distributed skeletons uniquely.

A point of ambiguity just occurred to me.  What are relative file names 
relative to?  For --skeleton, I think it's the current working directory.  
For %skeleton, it seems like the grammar file directory, so that would 
have to be prepended.

Does this all make sense?

> (My, you are a patient guy!  :-)

Well, these discussions usually do prove useful.