On Sep 9, 2013, at 4:51 PM, Christos Zoulas <chris...@zoulas.com> wrote:

> On Sep 10,  1:21am, d...@des.no (=?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?=) wrote:
> -- Subject: Re: [PATCH] mtree should not output size if the file is not a reg
> 
> | Roll a large tarball (e.g. a complete FreeBSD installation).  Copy it to
> | different machines with different filesystems.  Untar and run mtree on
> | the result.  Notice that you get different output on each machine
> | because they report different sizes for directories; one might report
> | the actual on-disk size (which might vary depending on past contents)
> | while the other might report the number of entries.
> 
> Yes, I agree. I would like to note that the current NetBSD code looks like:
> 
>        if (keys & F_SIZE &&
>           (flavor != F_NETBSD6 || S_ISREG(p->fts_statp->st_mode)))
> 
> which means that F_NETBSD6 did not print this, and we recently changed
> it to print the size for compatibility with F_FREEBSD9... We also made
> the default F_MTREE format to print the size. So I guess the thing to
> do is change the code to:
> 
>        if (keys & F_SIZE &&
>           (flavor == F_FREEBSD9 || S_ISREG(p->fts_statp->st_mode)))

DES is right:  size should just be omitted for non-regular files.
Bug-for-bug compatibility can be taken too far.

I prefer Xin's original patch.

Tim

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